Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Cement or filling composition

Subclass of:

523 - Synthetic resins or natural rubbers -- part of the class 520 series

523000000 - SYNTHETIC RESINS (CLASS 520, SUBCLASS 1)

523001000 - PROCESSES OF PREPARING A DESIRED OR INTENTIONAL COMPOSITION OF AT LEAST ONE NONREACTANT MATERIAL AND AT LEAST ONE SOLID POLYMER OR SPECIFIED INTERMEDIATE CONDENSATION PRODUCT, OR PRODUCT THEREOF

523105000 - Nonmedicated composition specifically intended for contact with living animal tissue or process of preparing; other than apparel

523113000 - Composition suitable for use as tissue or body member replacement, restorative, or implant

523115000 - Composition suitable for use as tooth or bone replacement, restorative, or implant

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
523117000 Radio- or X-ray opaque 15
Entries
DocumentTitleDate
20100016466Polymerizable dental material - The subject matter of the invention is a radically polymerizable dental material comprising at least two components. A first component of the dental material contains the salt of a CH-acidic compound, and an additional component contains an acid with acidity greater than that of the CH-acidic compound of the first component. Both components contain radically polymerizable monomers. When the two components are mixed, the acid of the second component converts the salt of the CH-acidic compound of the first component into a CH-acidic molecule, and the CH-acidic molecule triggers the radical polymerization of the monomers. In addition to the advantages of CH-acidic compounds in dental materials on the basis of a reactive resin, the invention achieves long-term storage stability as a result of an increase in the proportion of the reactive resin matrix in polymerizable dental materials.01-21-2010
20100093886ORGANIC AND INORGANIC COMPOSITE FILLER - To provide an organic and inorganic composite filler which gives excellent surface smoothness similar to that of a natural tooth, low polymerization shrinkage, high X-ray imaging property and high mechanical strength to a dental restoration material composite, an organic and inorganic composite filler used for a dental restoration material is produced by curing and pulverizing a (meth)acrylate compound including 50 to 80% by weight of a glass powder having a maximum particle diameter of 5 μm or less, an average particle diameter from 0.05 to 2 μm, and X-ray imaging property, and 10 to 40% by weight of a metal compound having an average particle diameter from 0.005 to 0.3 μm and X-ray imaging property at the maximum of 90% by weight in total, where the organic and inorganic composite filler has preferably an average particle diameter from 10 to 30 μm.04-15-2010
20100152318DENTAL GLASS COMPOSITION - An aluminosilicate glass composition comprising: (a) 10-35% by weight of silica; (b) 10-35% by weight of alumina; (c) 3-30% by weight of zinc oxide; (d) 4-30% by weight P06-17-2010
20090192240DENTAL COMPOSITE MATERIAL - The invention concerns hardenable dental composite materials, comprising i) non-agglomerated nanofillers having particle sizes of about 1 to about 50 nm; and ii) core-shell polymer particles with an elastic core compound, preferably having a modulus of elasticity of less than about 18 MPa, more preferably of less than 14 MPa, most preferably of less than about 10 MPa; and a substantially non-elastic shell compound. The materials have improved properties that allow for advantageous restoration of molar and premolar teeth with the bulk filling technique07-30-2009
20110196062Fillers and Composite Materials with Zirconia and Silica Nanoparticles - Fillers containing silica-zirconia nanoclusters are disclosed. The fillers may be prepared by mixing a sol of silica nanoparticles with a sol of preformed, crystalline nanozirconia particles. The fillers provide desirable optical properties, such as opalescence, and are useful in dental compositions.08-11-2011
20090030110Dental cement composition containing composite particles with grafted polyacidic polymer chains - A dental cement composition comprising 01-29-2009
20100076115Compositions For Dental Composites With Tricyclo[5.2.1.02.6]decane Derivatives - Dental composites comprising monomers, crosslinking agents, fillers, and initiators, in which the crosslinking agent comprises more than 50% by weight of the acrylate monomer TCD-DI-HEA, and the cyctotoxicity of the cured composite as determined according to the standard requirements of ISO 10993-5 and DIN EN ISO 7405 is assessed into the category “no cytotoxic potential”.03-25-2010
20090215921MODIFIED DIMETHYLACRYLATE MONOMER, METHOD FOR PREPARING THE SAME, AND POLYMERIC DENTAL COMPOSITE - A modified dimethylacrylate monomer is represented by the following formula (I):08-27-2009
20130210960CALCIUM PARTICLE-EMBEDDED, SNAP-TO-DOUGH, HIGH-VISCOSITY BONE CEMENT - The present invention relates to a composition comprising: a) a first component comprising a poly(methyl met 5 hacrylate) (PMMA), a contrast agent, a radical donor and calcium based particles; and b) a second component comprising methyl methacrylate (MMA), a radical scavenger, and a polymerization accelerator; wherein the composition has an average setting time of about 13 minutes.08-15-2013
20100105802CURABLE COMPOSITION FOR DENTAL PURPOSES - A curable composition for dental use, containing a polymerizable monomer, inorganic particles (A) having irregular shapes and an average particle size of from 1.0 to 5.0 μm, wherein the inorganic particles (A) are surface-treated with a silane coupling agent (a) represented by the formula (I):04-29-2010
20120214900DENTAL COMPOSITION - An aqueous dental glass ionomer composition comprising (a) a reactive particulate glass, (b) a linear or branched polymer comprising acidic groups, which is reactive with the particulate glass in a cement reaction, whereby the linear or branched polymer comprising acidic groups has a polymer backbone and optionally pendant groups, (c) optionally dispersed nanoparticles comprising grafted linear or branched polymer chains comprising acidic groups, and having a polymer backbone characterized in that a polymer backbone of the linear or branched polymer of component (b) and/or, if present, the grafted Sinear or branched polymer chains of component (c) are obtainable a process comprising (i) cyclopolymerizing or cyclocopolymerizing one or more compounds of the following formula (I).08-23-2012
20090105369Polymethylmethacrylate Bone Cements - What is described is a PMMA bone cement, containing at least one homopolymer or one copolymer having a glass transition temperature of more than 45° C., and at least one biocompatible elastomer that has a glass transition temperature of less than 37° C. and is soluble or insoluble in alkylmethacrylates and/or alkyldimethacrylates and/or alkyltrimethacrylates and/or alkyltetramethacrylates and has a residual monomer content of less than 5 percent. The PMMA bone cement is preferably used as self-curing plastic material for the fixation of primary total articular endoprostheses and revision total articular endoprostheses. Moreover, the PMMA bone cement can be used as self-curing filling material for vertebroplasty, kyphoplasty or femoral neck augmentation as well as for the production of temporary place-holders for two-stage revisions of total articular endoprostheses.04-23-2009
20130059941METHOD OF SURFACE TREATING INORGANIC OXIDE PARTICLES, HARDENABLE DENTAL COMPOSITIONS, SURFACE TREATED PARTICLES, AND SURFACE TREATMENT COMPOUNDS - Presently described are methods of surface treating inorganic oxide particles, hardenable (e.g. dental) compositions comprising a polymerizable resin composition and surface treated particles, as well as surface treated (e.g. nanocluster) inorganic oxide particles, and silane surface treatment compounds. In one embodiment, the method comprises forming a surface treatment compound by reacting a first functional group of a (meth)acrylate monomer having a molecular weight of at least 350 g/mole with a second functional group of a silane compound wherein the first and second functional group react to form a covalent bond; and combining the surface treatment compound with inorganic oxide particles.03-07-2013
20090270528RESIN SYSTEMS FOR DENTAL RESTORATIVE MATERIALS - The disclosure provides a new photopolymerizable resin system for dental restorative materials. The resin system utilizes a thiol-ene component as the reactive diluent in dimethacrylate systems. The ternary resin system comprises a thiol monomer, an ene monomer and a dimethacrylate monomer. Use of an off-stoichiometric ratio of thiol:ene functional groups in favor of excess thiols results in enhanced overall functional group conversion, improved polymer mechanical properties, and reduced shrinkage stress of the ternary system when compared to either traditional dimethacrylate or thiol-ene resin systems.10-29-2009
20090270527CEMENT PRODUCTS AND METHODS OF MAKING AND USING THE SAME - Disclosed are cement products, methods of forming cement using the cement product, and methods of using the cement product in orthopedic and dental applications. Generally, the disclosed cement product includes a first component and a second component. The first component comprises a polymerizable resin comprising ethylenic unsaturated double bond, a suitable glycidyl group and/or a suitable isocyanate group. The second component includes a compound comprising more than one type of amine selected from the group consisting of primary amine, secondary amines, tertiary amines and quaternary amines. Alternatively, the second component includes a compound comprising a suitable mercapto (SH—) group, a hindered amine or a dimethylthiotoluenediamine (DMTDA). Optionally, the cement product includes a filler and/or a bioactive component to promote bone formation.10-29-2009
20090012209DENTAL COMPOSITIONS CONTAINING A SURFACE-MODIFIED FILLER - The present invention features ionomer compositions containing a filler surface modified with a polyacid. The compositions can be used in a variety of dental and orthodontic applications, for example, as adhesives, cements, restoratives, coatings and sealants.01-08-2009
20120238662DENTAL COMPOSITION - Dental cement composition comprising a polymerizable polyacidic polymer having repeating units in the polymer backbone, which are represented by the following formula (I)1 (II), and/or (III): wherein X represents O, S, or NR′, whereby R′ represents a hydrogen atom or a straight or branched C09-20-2012
20100331445Systems For Self-Healing Composite Materials - A composite material precursor composition includes a matrix precursor, a first plurality of capsules including a liquid polymerizer, an activator, and an accelerant. The liquid polymerizer polymerizes when in contact with the activator, and the accelerant is an accelerant for the polymerization of the liquid polymerizer. The composite material precursor may be used to form a composite material that includes a solid polymer matrix, the first plurality of capsules in the solid polymer matrix, the activator in the solid polymer matrix, and the accelerant in the solid polymer matrix.12-30-2010
20130023601Dental Composition Comprising A Calcium Source - The present invention relates to cements useful in dental applications, and more particularly to dental compositions which may release calcium ions, which may comprise at least one of salicylic acid ester derivative and a calcium source. The present invention further relates to the use of at least one of salicylic acid ester derivative and a calcium source for producing a dental composition, having biological properties and which may release calcium ions for use in dental procedures of intermediate restorations and channel filling.01-24-2013
20100249266POLYMERIZABLE COMPOSITION - To provide a polymerizable composition having more excellent preservation stability of pastes than a conventional composition using a combination of a copper compound, cumene hydroperoxide, and N-acetylthiourea, and having a polymerization curing time which does not change with time, that is, does not delay or quicken from a time set for a product even though the composition is stored, the polymerizable composition includes a first paste and a second paste, wherein the first paste includes a polymer of α-β unsaturated monocarboxylic acid or α-β unsaturated dicarboxylic acid, water, and a hydroperoxide as a peroxide, and the second paste includes a (meth)acrylate compound not having an acid group, fluoroaluminosilicate glass powder, a thiourea derivative as a reducing material, and a vanadium compound as a polumerization accelerator.09-30-2010
20090156710Cone Material in Endodontic Treatment - The present invention discloses a cone material in endodontic treatment. The cone material comprises a thermoplastic polyurethane and a filler. The thermoplastic polyurethane is formed by a. isophorone diisocyanate (IPDI) or hexamethylene diisocyanate (HDI), b. poly(butyleneadipate) glycol (PBA) and c. chain extender, wherein the molar ratio of PBA and the diisocyanate is equal to or more than 0.8. By changing the molar composition of the components such as polyol and diisocyanate, physical and chemical property of the disclosed cone material in endodontic treatment can be adjusted.06-18-2009
20100010115Two-paste type dental self-adhesive resin cement - The present invention provides a dental self-adhesive resin cement having clinically-acceptable adherability for various adherends without pre-treatment with primers. Specifically, there is provided the dental self-adhesive composite resin cement comprising: 01-14-2010
20120296005MEDICAL RESIN COMPOSITION, MANUFACTURING PROCESS THEREFOR AND MEDICAL KIT - A medical resin composition, particularly a dental resin composition is produced by mixing a polymer (A) containing 70% by weight or more of methyl methacrylate units and a liquid of a monomer (B) containing 70% by weight or more of a compound (b1) represented by formula (1):11-22-2012
20090264554BONE CEMENT COMPOSITION AND METHOD - The disclosure is directed to a composition includes a first component and a second component. The first component includes a poly(methyl methacrylate) (PMMA), a contrast agent, and a radical donor. The second component includes methyl methacrylate (MMA), a radical scavenger, and a polymerization accelerator. The composition has an average setting time of about 13 minutes. The disclosure is further directed to a kit and a method of making the above-mentioned composition.10-22-2009
20090137697Dental Curable Composition and Kit for Such Dental Curable Composition - A dental curable composition has a curing time of 30 seconds to 120 minutes and includes a compound having an acidic group in the molecule (A), a polymerizable monomer (B), an organic amine compound (C) and a sulfur-containing reducing compound (D). In the dental curable composition, the content of the component (A) is 0.01 to 80 parts by weight, the content of the component (B) is 21 to 99.8 parts by weight, the content of the component (C) is 0.01 to 30 parts by weight and the content of the component (D) is 0 to 30 parts by weight. The composition may be cured at a relatively low temperature close to the body temperature without using a peroxide-based polymerization initiator, and has good sealing properties and adhesion.05-28-2009
20080234405Materials based on radically polymerizable N,O-functionalized acrylic acid hydroxamides - A material contains at least a polymerizable N,O-functionalized acrylic acid hydroxyamide of the Formula (I)09-25-2008
20090186960DENTAL MATERIALS WITH SURFACE-FUNCTIONALIZED FILLERS - The invention relates to a polymerizable composition which is characterized in that it contains at least one filler that is surface-functionalized with groups of formula (I), wherein groups of formula (I)07-23-2009
20090036565Dental Composites with a Low Shrinkage Tension and High Flexural Strength - Dental composite materials based on (meth)acrylate, exhibiting a proportion of TCD monomers in the total composition of 1-15% by weight and the quotient of flexural strength/shrinkage tension is at least 35.02-05-2009
20080319102Dental Composition Containing Epoxy Functional Polymerizable Compounds - The present invention relates to dental compositions comprising a halogenated epoxy functional ether derivative comprising at least one aryl alkyl ether moiety, at least one halogen atom attached to each aryl residue of the aryl alkyl ether moieties, at least two aliphatic epoxy moieties, no glycidyl ether structure, an initiator, optionally filler and optionally additive components selected from the group of modifiers, dyes, pigments, thixotropic agents, flow improvers, polymeric thickeners, surfactants, odorous substances, diluting agent(s) and flavourings.12-25-2008
20080319103Polyurethane composite material and application - The present invention discloses a Polyurethane (PU) composite material comprising a thermoplastic polyurethane and a filler. The thermoplastic polyurethane comprises a linear polyurethane main-chain, and the polyurethane main-chain comprises a soft segment and a hard segment. The hard segment of the polyurethane main-chain is formed by a diisocyanate and a chain extender, and the soft segment of the polyurethane main-chain is formed by a polyol. The present invention also teaches the application of the disclosed thermoplastic polyurethane composite material in dental root canal material.12-25-2008
20090247664BONE TREATMENT SYSTEMS AND METHODS - The present disclosure relates to bone cement formulations that have an extended working time for use in vertebroplasty procedures and other osteoplasty procedures together with cement injectors that include energy delivery systems for on-demand control of cement viscosity and flow parameters. The bone cement formulations may include a liquid component having at least one monomer and a non-liquid component including polymer particles and benzoyl peroxide (BPO). The non-liquid component may be further configured to allow controlled exposure of the BPO to the liquid monomer so as to enable control of the viscosity of the bone cement composition.10-01-2009
20110144231Polyalkenoate Cements Having Improved Properties - The invention relates to a polyalkenoate cement for biomedical or dental applications, comprising: a) at least one acidic, phosphorus-based polyalkenoate polymer, b) at least one acid-soluble salt or acid-soluble compound of a multivalent metal, c) at least one non-polymeric acidic phosphorus compound and d) an ion-releasing, finely divided glass which is capable of reacting with components (a), (b) and (c) in the presence of water.06-16-2011
20110144230DENTAL MATERIALS USING 2,2,4,4-TETRAMETHYL-1,3-CYCLOBUTANDIOL - Dental compositions and dental products having a resin derived from a cyclic diol such as 2,2,4,4-tetramethyl-1,3-cyclobutandiol.06-16-2011
20120077901DENTAL GLASS IONOMER CEMENT COMPOSITION - To provide a dental glass ionomer cement composition having excellent adhesion strength to a metallic prosthesis. A dental glass ionomer cement composition includes a copolymer (A), a fluoroaluminosilicate glass powder (B) and water (C). The copolymer (A) includes a polymer or copolymer of α-β unsaturated carboxylic acid, or includes a copolymer of α-β unsaturated carboxylic acid and one or more kinds selected from a group of acrylamide, acrylonitrile, methacrylic acid ester, acrylates, vinyl chloride, allyl chloride and vinyl acetate. In the copolymer (A), the number of molecules of α-β unsaturated carboxylic acid occupies 50% or more of the total number of molecules. The dental glass ionomer cement composition further includes a compound (D) which contains a sulfur atom in one molecule, includes a carboxylic group and an amino group and does not include a polymerizable group.03-29-2012
20090221730BONE CEMENT COMPOSITION - A bone cement composition contains (a) the product of a polymerisation reaction between a high molecular weight dimethacrylate monomer having a molecular weight of at least 250 and bearing at least one hydrophilic group, a monofunctional methacrylate monomer having a molecular weight of not more than 250 bearing at least one hydrophilic group, an methacrylate monomer, and a polymer having a molecular weight of at least 200,000, and (b) an inorganic filler which is present in an amount of at least about 40% by weight, based on the total weight of the cement composition.09-03-2009
20090253825Dental Filler, Method of Producing the Same, and Dental Composite Material - The present invention provides dental fillers having the optical and/or mechanical characteristics required to dental materials, a method of producing the same, and a dental composite material prepared with use of the dental filler. More specifically, the present invention provides a dental filler containing a zirconium silicate compound, especially a zirconium trisilicate compound with a wadeite type crystalline structure and having an average particle diameter in the range from 2 to 50,000 nm, a method of producing the same, a dental composite material containing the dental filler and a hardenable resin selected from an acrylic resin, a methacrylic resin, an epoxy resin, a vinyl resin, a urethane resin and the like.10-08-2009
20120196952POLYMERIZABLE COMPOSITION AND DENTAL MATERIAL - The present invention provides a polymerizable composition that is suitably used as a temporary cement for implant use and a mobile tooth-fixing material. The present invention is a polymerizable composition that includes an acrylic block copolymer (a) having at least one polymer block A that mainly contains a (meth)acrylic acid ester unit and that functions as a hard segment and at least one polymer block B that mainly contains an acrylic acid ester unit and that functions as a soft segment, a polymerizable monomer (b), and a polymerization initiator (c).08-02-2012
20090048366Dental Composite Resin Cement, Dental Primer and Dental Adhesive Kit Containing Them - The present invention provides a dental resin cement which is excellent in a mechanical strength, workability and storage stability, and a dental primer which significantly improves adhesiveness of the dental resin cement both to enamel and dentin of a tooth. According to the present invention, a salt of barbituric acid is used as a polymerization initiator in the dual-cure two-paste type dental resin cement being excellent in workability and storage stability to improve the storage stability, and a primer containing barbituric acid and amine is applied to a surface of a tooth to significantly improve adhesiveness of the dental resin cement both to enamel and dentin of teeth.02-19-2009
20110105640Bone cement having porous fiber reinforcement - The bone cement matrix consists of three base component parts, which when mixed form a radiopaque rapidly setting bone cement, namely, a powdered or granular low viscosity polymer component; a liquid reactive or polymerizable monomer component; and a reinforcement component consisting of porous ceramic fibers. The ceramic fibers are porous and have a rough outer surface created by the pores and cavity permeating the fibers. The pores, cavities and rough surface of the fibers themselves, provide the mechanical interface for securely bonding the fibers to the polymer component. During polymerization, the polymer component saturates into the pores and cavities of the ceramic fibers creating a positive interdigitation of the polymer and fibers within the cement matrix.05-05-2011
20100144919Reactive polymeric nanoparticles (RPNPS) for restoration materials in dentistry - A method is disclosed in which modified and generic dental resins are combined as mixtures with reactive polymeric nanoparticles (RPNPs). Nanoparticles as additives clearly demonstrate that the RPNPs significantly influence the mechanical and shrinkage properties of the matrix and composites.06-10-2010
20100240795SELF-ADHESIVE MULTICOMPONENT DENTAL MATERIAL - Curable multicomponent dental material, including a first paste, which contains (i) one or more acid group-free radically polymerizable monomers and (ii) basic filler, and a second paste, which contains (iii) one or more acid group-containing radically polymerizable monomers and (iv) non-basic filler, wherein the multicomponent dental material contains at least one initiator (v) for radical polymerization in at least paste (A) or (B).09-23-2010
20120142811BONE CEMENT COMPOSITION - A bone cement composition contains (a) the product of a polymerisation reaction between a high molecular weight dimethacrylate monomer having a molecular weight of at least 250 and bearing at least one hydrophilic group, a monofunctional methacrylate monomer having a molecular weight of not more than 250 bearing at least one hydrophilic group, an methacrylate monomer, and a polymer having a molecular weight of at least 200,000, and (b) an inorganic filler which is present in an amount of at least about 40% by weight, based on the total weight of the cement composition.06-07-2012
20110130486Materials Based on Radically Polymerizable N,O-Functionalized Acrylic Acid Hydroxamides - The present invention relates to a dental material comprising, relative to the total mass of the material: 06-02-2011
20090105368TIME-CONTROLLED INTRAORAL FILM FORMER SYSTEM FOR INTRAORAL USE - A water soluble polymer or biodegradable polymer operable to act as a release or separator between a prepared and sealed dentin surface and a temporary restoration.04-23-2009
20110112210PMMA PASTE - A PMMA paste is made from a mixture of (A) methyl methacrylate having a methacrylic acid content of less than 1% and a water content of less than 1% and (B) at least one polymethyl methacrylate having a Tg of more than 65° C. and a molar mass of greater than or equal to 200,000 g/mol. The methyl methacrylate fraction is sufficient for the PMMA paste to be autosterile, the weight ratio of (B) to (A) preferably being 10-50% (B) to 50-90% (A). The PMMA paste can be used to produce paste-like one-component bone cements and two-component bone cements.05-12-2011
20090105366PASTE-LIKE POLYMETHYLMETHACRYLATE BONE CEMENT - What is described is a paste-like PMMA bone cement that is characterised in that a paste-like component A, which is made up of one or more methacrylate monomers that can be distilled and polymerised by radical polymerisation, at least one polymer that is soluble in the methacrylate monomer/methacrylate monomers, at least one particulate polymer that is insoluble in the methacrylate monomer/methacrylate monomers and has a particle size of less than 500 μm, and at least one radical initiator, and a paste-like component B, which is made up of one or more methacrylate monomers that can be distilled and polymerised by radical polymerisation, at least one polymer that is soluble in the methacrylate monomer/methacrylate monomers, at least one particulate polymer that is insoluble in the methacrylate monomer/methacrylate monomers and has a particle size of less than 500 μm, and at least one accelerator, is present and in that a tack-free paste that cures by itself is generated upon mixing the paste-like components A and B.04-23-2009
20120035296BONE CEMENT COMPOSITION, BONE CEMENT COMPOSITION KIT AND FORMING METHOD OF BONE CEMENT HARDENED MATERIAL - The invention has as its objects the provision of a bone cement composition, a bone cement composition kit for obtaining the bone cement composition, and a production method of a bone cement hardened material, which are short in doughing time that is a time required to become a state in which a good handling operation can be conducted, and have consequently capable of achieving a high working efficiency by shortening the time required before the handling operation is started.02-09-2012
20110245368PASTE-TYPE POLYMERIZABLE COMPOSITION - To provide a paste-type polymerizable composition used in a tooth restoration treatment, where the paste-type polymerizable composition has excellent storing stability, has proper polymerization property in the presence of water, and hardly discolors with passage of time after polymerization, the paste-type polymerizable composition consists of a first paste and a second paste, where the first paste includes an ascorbic acid compound (b), (meth)acrylate (d) not having an acid group and a filler (e) not reacting to acid, and the second paste includes a peroxide (a) not having a polymer structure and being compatible with water or dissoluble with water, (meth)acrylate (c) having an acid group, (meth)acrylate (d) not having an acid group, a filler (e) not reacting to acid and water (f).10-06-2011
20100048763BONE CEMENT COMPOSITIONS HAVING FIBER-REINFORCEMENT AND/OR INCREASED FLOWABILITY - The present invention relates in general to implantable compositions, and method for preparing same, containing a calcium salt-containing component, optionally demineralized bone, a plurality of discrete fibers, optionally a flow additive, and optionally continuous reinforcing fibers or an array of organized fibers in the form of mesh. Advantageously, the discrete fibers have a specific aspect ratio (length/diameter) from about 50:1 to about 1000:1. The addition of a small amount of discrete fibers and/or the continuous reinforcing fibers or fiber mesh can cause drastic increases in certain mechanical properties including flexural strength, flexural toughness, and/or screw pullout strength.02-25-2010
20100056664DENTAL FILLER, METHOD FOR PRODUCING THE SAME, AND DENTAL COMPOSITE MATERIAL - A dental filler having the optical and/or mechanical properties satisfying the requirements to a dental material, a method for producing the dental filler, and a dental composite material containing the dental filler. The dental filler comprises microparticles of amorphous inorganic oxide constituted by at least silica-based fine particles covered with a composite oxide comprising zirconium, silicon and oxygen. The dental composite material contains the dental filler and a hardenable resin selected from an acrylic resin, a methacrylic resin, an epoxy resin, a vinyl resin and a urethane resin.03-04-2010
20100063176PASTE-TYPE DENTAL CEMENT - To provide a paste-type dental cement capable of being used properly for temporary adhering or temporary filling, a paste-type dental cement, which comprises a phosphoric acid and/or a polymer of α-β unsaturated carboxylic acid, an oxide powder capable of reacting with the phosphoric acid and/or the polymer of α-β unsaturated carboxylic acid, and a water, further includes a liquid not reacting with the oxide powder.03-11-2010
20110098374BONE CEMENT MIXTURE FOR PRODUCING AN MRT-SIGNALING BONE CEMENT - The invention relates to a bone cement mixture for producing an MRT-signaling bone cement and to an MRT-signaling bone cement produced from said mixture. The bone cement mixture of the invention includes: 04-28-2011
20110071234Self-Healing dental restorative formulations and related methods - Dental restorative formulations comprising two additives incorporated into the continuous phase of a dental material. One additive contains a capsule with a radical initiator. The other additive contains a capsule with one or more monomers and a radical accelerator. The dental restorative formulation is applied and polymerized to form a composite. When a disturbance occurs in the dental composite, the capsules of the additives rupture so that the radical accelerator of the second capsule decomposes the radical initiator of the first capsule to polymerize the one or more monomers of the second capsule thereby healing the dental composite. The radical accelerator controls the rate of decomposition of the radical initiator.03-24-2011
20110009522MATERIAL FOR FILLING BONE DEFECTS AND PRODUCTION METHOD THEREOF - Disclosed is a material for filling bone defects having a three-dimensional steric structure. This material is produced by dissolving or suspending a substance in a solvent to give a solution or slurry, the substance containing a biodegradable resin as a principal component and bearing a siloxane; adding water to the solution or slurry to give a spinning solution, the water having a relative dielectric constant larger than that of the biodegradable resin; subjecting the spinning solution to electrospinning while applying a positive charge to a collector by a voltage supply and grounding a nozzle of a syringe without applying a charge thereto; thereby yielding the material on the collector.01-13-2011
20080242760Poly (Dialkylsiloxane) For Improving Surface of Dental Fillings - The present invention relates to a use of a poly(dialkylsiloxane) having terminal hydroxyl groups, wherein the alkyl groups contain 1 to 4 carbon atoms, for improving the strength and the surface of dental fillings that are based on glass ionomer cement compositions.10-02-2008
20100056665POLYMERIZABLE MONOMER, POLYMERIZABLE COMPOSITION AND DENTAL MATERIAL - The present invention provides a polymerizable composition that imparts excellent adhesive properties with respect to tooth structure (particularly dentin) when applied as a dental material, and provides a polymerizable monomer that is used as a component of the polymerizable composition. The present invention is a compound (A) that is a compound represented by the following formula (1): where G indicates a polymerizable group, m indicates an integer of 2 or more, n indicates an integer of 1 or more, and the sequence order of m units having a polymerizable group and n units having a hydroxyl group is arbitrary. The present invention also is a polymerizable composition containing the compound (A).03-04-2010
20120277343DENTAL FILLERS, METHODS, COMPOSITIONS INCLUDING A CASEINATE - The present application provides dental fillers, and methods of making and using dental fillers that include a treated surface that includes a caseinate. Dental compositions including such dental fillers can be useful for delivering ions to the oral environment. Dental compositions, and methods of using dental compositions that include a caseinate and a hardenable resin or a water-dispersible, polymeric film former are also provided.11-01-2012
20110054066USE OF POLYMERIZABLE MACROCYCLIC POLYETHERS AND MACROCYCLIC HETEROANALOGOUS POLYETHERS IN DENTAL MATERIALS - Radically polymerizable macrocyclic polyethers or macrocyclic heteroanalogous polyethers, preferably crown ethers, heteroanalogous crown ethers and cryptands for use in dental materials is disclosed.03-03-2011
20120302662DENTAL RESTORATIVE MATERIAL - A dental restorative composition is provided that includes a polymerizable resin, a substantially translucent structural filler, a nanofiller having a mean particle size less than 100 nm, and at least one rheology-modifying additive. In one embodiment, the structural filler has a refractive index substantially similar to that of the polymerizable resin, a coarse particle fraction, and a fine particle fraction having a mean particle size greater than 0.1 μm and smaller than the mean particle size of the coarse particle fraction. The relative ratio of the coarse particle fraction to the fine particle fraction is in the range from about 12:1 to about 2:1 by volume, the particle size distribution of each fraction is essentially monomodal, and the D(90) of the fine particle fraction is less than or equal to the D(10) of the coarse particle fraction.11-29-2012
20110118380Filled Dental Material Based on Polymerizable Dihydroxy-Phenylalanine Derivatives - Polymerizable dental material which contains (a) at least one radically polymerizable compound according to the general formula I05-19-2011
20110009521Liquid crystalline epoxy nanicomposite material and application thereof - The invention provides an epoxy nanocomposite material for dental therapy, which can be applied to direct or indirect clinical restoration, dental core-post system, and dental brace etc. The epoxy nanocomposite filling material provided by the invention can be polymerized with various curing agents to form the polymer with low shrinkage.01-13-2011
20110136935BONE AND/OR DENTAL CEMENT COMPOSITION AND USES THEREOF - The present invention provides a composition comprising: at least one viscosity-enhancing agent; and at least one macromonomer. In particular, the composition may be a bone cement composition and/or a dental cement composition. The composition may be used in medicine. The composition may be used in orthopedic and/or periodontal applications. The present invention also provides uses of the composition.06-09-2011
20100273911MULTI-SOLUTION BONE CEMENTS AND METHODS OF MAKING THE SAME - The present invention relates to bone cements and, more particularly, to acrylic-based orthopedic bone cements, their use in spinal applications, and methods for making the same. An embodiment of the present invention provides a method of grafting PMMA brushes on cross-linked PMMA nanospheres comprising at least one of the following steps: performing a hydrolysis reaction of surface methyl ester groups of said cross-linked PMMA nanospheres to form surface carboxylic acid groups of said cross-linked PMMA nanospheres; forming a 2-aminoethyl acrylate compound; coupling said surface carboxylic acid groups of said cross-linked PMMA nanospheres with said 2-aminoethyl acrylate compound to form a coupled compound with an initiating site; and grafting said PMMA brushes onto said initiating site. Another embodiment of the present invention includes an orthopedic bone cement including cross-linked PMMA nanospheres comprising PMMA brushes prepared by this method, and a monomer, wherein polymer to monomer ratio is between about 1:1 and 1.3:1.10-28-2010
20100022681Dental compositions comprising cisacrylamides and use thereof - The invention concerns a dental composition comprising bisacrylamides that are polymerizable by free-radical polymerization and by Michael-addition polymerization with amines. The application of polymerization and addition polymerization with amines opens the possibility to completely reacted materials that have no oxygen inhibited layers. The claimed bisacrylamides have an improved hydrolytic stability.01-28-2010
20100016467BONE TREATMENT SYSTEMS AND METHODS - The present disclosure relates to bone cement formulations that have an extended working time for use in vertebroplasty procedures and other osteoplasty procedures together with cement injectors that include energy delivery systems for on-demand control of cement viscosity and flow parameters. The bone cement formulations may include a liquid component having at least one monomer and a non-liquid component including polymer particles and benzoyl peroxide (BPO). The non-liquid component may be further configured to allow controlled exposure of the BPO to the liquid monomer so as to enable control of the viscosity of the bone cement composition.01-21-2010
20090258965FIBER-REINFORCED COMPOSITES AND METHOD FOR THE MANUFACTURE THEREOF - The present invention relates to fiber-reinforced composites, particularly application-oriented composites useful in dental and medical applications/appliances, such as fiber reinforced dental composites, and to a method for the manufacture thereof. Particularly the invention concerns random glass fiber-reinforced restorative composite resins with semi-interpenetrating polymer network matrix and their use in dental applications like cavity fillings, core composites, provisional and semi-permanent crown and bridge composite, cements and adhesives.10-15-2009
20090239969DENTAL PROSTHETICS COMPRISING CURABLE ACRYLATE POLYMER COMPOSITIONS AND METHODS OF THEIR USE - Disclosed herein are acrylic and methacrylic acid ester-based polymeric materials containing as flexibilizing and brittleness reducing agents 1-60% of C09-24-2009
20120149801DENTAL COMPOSITION - An aqueous dental glass ionomer composition comprising (a) a reactive particulate glass, and (b) a linear or branched polymer comprising acidic groups, which is reactive with the particulate glass in a cement reaction, whereby the linear or branched polymer comprising acidic groups has a polymer backbone and optionally pendant side chains, (c) optionally dispersed nanoparticles, and (d) optionally a low molecular compound, characterized in that the glass ionomer composition comprises —S06-14-2012
20110152400Composite material, in particular a dental filling material, ultrasonic curing of dental filling materials, and a population of zirconia particles - Example embodiments relate to a composite material exhibiting a low or even negligible volumetric shrinkage upon curing, or even a small expansion (e.g. up to 0.5%), in particular composite materials in the form of dental filling materials. Example embodiments also relate to a method of controlling volumetric shrinkage of a composite material upon curing, and to a method of reconstructing a tooth. Example embodiments also relate to ultrasonic curing of dental filling materials. Example embodiments further relate to a population of zirconia particles and methods for preparing such zirconia particles (e.g. zirconia in the tetragonal phase or zirconia in the cubic phase). The martensitic transformation of the filler ingredients is, e.g., triggered by application of ultrasound or by a chemical trigger.06-23-2011
20090036564Bio-Degenerable Bone Cement and Manufacturing Method thereof - A bio-degenerable bone cement is made of a mixture of poly (propylene fumarate) (PPF) and a diphasic material of tetra-calcium phosphate (TTCP)/dicalcium phosphate anhydrous (DCPA). The bone cement produced by a manufacturing method is injectable, bio-degenerable and non-penetrable to radioactive rays and features the advantages of a compressive strength close to the strength of bones, a low polymerization temperature, and a high biological compatibility.02-05-2009
20120046385BONE CEMENT COMPOSITION AND PRODUCTION METHOD THEREOF, AND KIT FOR PRODUCING THE SAME - The invention has as its objects the provision of a bone cement composition and a bone cement composition kit for obtaining the bone cement composition having bioactivity and capable of forming a hardened material having high mechanical strength practically required, and the provision of a bone cement formed material having both bioactivity and high mechanical strength practically required and a production method thereof.02-23-2012
20120208917Dental restorative material based on an antimicrobially active compound - The invention relates to a dental restorative material which comprises (a) at least one antimicrobially active compound of Formula (I)08-16-2012
20120010322Dental materials based on dimer acid derivatives with ring opening polymerizable groups - The invention relates to a radically polymerizable monomer of formula (I)01-12-2012
20090018234DENTAL CEMENT - In order to decrease hydroscopic expansion of a resin-modified dental glass ionomer cement without losing high mechanical strength and adhesiveness to tooth structure and to lower a solubility, a dental cement consists of a liquid agent which includes a (meth)acrylate monomer having an acid group; a (meth)acrylate monomer having two or less hydroxyl groups and/or amino groups, not having an acid group, and having 160 or more molecular weight; water if necessary; and an amine compound as a polymerization initiator for a polymerization catalyst in a powder agent, and a powder agent which includes metal oxide powder used for fluoroaluminosilicate glass powder, dental zinc phosphate cement powder or dental carboxylate cement powder; and an organic aromatic compound and a peroxide, where the organic aromatic compound contains at least one —SO01-15-2009
20080293846Dental Compositions with Surface-Treated Filler for Shelf Stability - The invention features dental compositions containing a basic filler that has been surface-treated with a strong acid to increase the shelf life of the composition.11-27-2008
20110184083PMMA BONE PASTE MIXING APPARATUS AND METHOD - A device is provided with which it is possible to produce poly(methyl methacrylate) bone-cement paste, which is degassed to the greatest extent possible, while avoiding large-volume mixing containers and large cement volumes contained therein. The device includes a tubular hollow body (07-28-2011
20120220691PROCESS FOR THE SYNTHESIS OF METHACRYLATE-DERIVATIZED TYPE-1 COLLAGEN AND DERIVATIVES THEREOF - Methods for synthesizing a methacrylate-derivatized type-I collagen in which methacrylic acid is reacted with a carboxylic acid activating reagent in the presence of a carbodiimide to form a methacrylic acid with an activated carboxylic acid group, which is then reacted with free amino groups on type-I collagen to form a collagen methacrylamide. Methacrylate-derivatized collagen, cross-linked collagens formed therefrom and products containing the cross-linked collagen are also disclosed.08-30-2012
20120136090FIBER WADDING FOR FILLING BONE DEFECTS - A fiber wadding for filling bone defects having a flocculent three-dimensional structure is disclosed. The fiber wadding includes a plurality of fibers that contain a biodegradable resin as a principal component and a siloxane. Outside diameter of the plurality of fibers of the wadding is from about 0.05 μm to about 30 μm. Bulk density of the fiber wadding is about 0.005-0.3 g/cm05-31-2012
20120136089Dental materials Using 2,2,4,4-Tetramethyl-1,3-Cyclobutandiol - Dental compositions and dental products having a resin derived from a cyclic diol such as 2,2,4,4-tetramethyl-1,3-cyclobutandiol.05-31-2012
20100048761POLYMERIZABLE MONOMER-CONTAINING COMPOSITION - The present invention provides a composition suitable for a dental composition. The present invention is a composition containing: a polymerizable monomer (A) having an unconjugated carbon chain with at least four carbon atoms bonded continuously, at least two polymerizable groups, and at least two hydroxyl groups; and a water (B). The composition contains 6 to 2000 parts by weight of the water (B) with respect to 100 parts by weight of the whole amount of polymerizable monomer components. When suitable components are added to this composition, the resultant composition can be used suitably for dental materials such as a primer, bonding material, composite resin, and cement.02-25-2010
20100048762COMPOSITION AND DENTAL MATERIAL - The present invention provides a composition that exhibits excellent adhesive properties to tooth structure (particularly dentin) when applied as a dental material. The present invention is a composition containing a polymerizable monomer (A) having an unconjugated carbon chain with at least four carbon atoms bonded continuously, at least two polymerizable groups, and at least two hydroxyl groups, and a bisacylphosphine oxide (B) represented by the following formula (1):02-25-2010
20120083550Composite Material Comprising a Monomer with a Polyalicyclic Structure Element as a Sealing Material - The application of certain (preferably photocurable) composite materials comprising a monomer with a polyalicyclic structure element as a dental sealing material is described herein. A description is also provided of novel polymerizable monomers comprising at least one polyalicyclic structure element and certain ethylenic structure elements, which are particularly suitable for use in a composite material to be applied and their application in a composite material.04-05-2012
20100292364Filler material for crowns, crown material containing same, and method of manufacturing thereof - The present invention provides a composition for crown material including resin and a fine spherized composite glass powder. The fine composite glass powder of the present invention for such a configuration has superior qualities with regard to both sintering and optical characteristics, and can be used as a filler for crown material.11-18-2010
20120259034PROCESS FOR THE PREPARATION OF A COMPOSITION COMPRISING HYPERBRANCHED COMPOUNDS - A process for the preparation of a composition comprising hyperbranched polymeric compounds, which comprises a step of reacting a mixture comprising one or more compounds of the following formula (I): AR(B)10-11-2012
20110237705TWO-COMPONENT SYSTEM FOR BONE CEMENT - The invention relates to a system for preparing a polymerized bone cement, including two components reacting with each other when they are mixed to form a solid polymer material. The first component may include a biocompatible acrylic polymer and an initiator capable of initiating a polymerization reaction. The second component may include a monomer capable of dissolving an acrylic polymer, a polymerization activator and a polymerization inhibitor, system in which the second component also includes a biocompatible acrylic polymer dissolved in said monomer, identical or different from the polymer of the first component with an average molar mass greater than 1,000,000 g/mol and a residual initiator content of less than 0.1% to form a gel with determined viscosity. Another object of the invention is a composition designed to constitute the second component of as system used to prepare such cement.09-29-2011
20100197824METHACRYLATE BASED MONOMERS CONTAINING A URETHANE LINKAGE, PROCESS FOR PRODUCTION AND USE THEREOF - The invention relates to a dental composition comprising a monomer or mixture of monomers represented by the following structure08-05-2010
20090105367INITIATOR SYSTEM FOR SELF-CURING PLASTIC MATERIALS, ITS USE, AND BONE CEMENT COMPOSITIONS CONTAINING IT - An initiator system for self-curing plastic material comprises a) at least one salt of a dialklylbarbituric acid and/or an alkylcycloalkylbarbituric acid and/or alkylarylbarbituric acid and/or a cycloalkylarylbarbituric acid that is insoluble in methacrylate monomers; b) at least one heavy metal salt that is insoluble in methacrylate monomers; c) at least one halogenide ion donor that is insoluble in methacrylate monomers; and d) at least one acid that is soluble in methacrylate monomers. The initiator system can be used for the preparation of paste/paste, paste/powder, paste/liquid, powder/liquid, and liquid/liquid combinations for the production of medical plastic material and dental materials. Additionally, a bone cement composition containing the initiator system is described.04-23-2009
20100168271BONE CEMENT AND METHODS OF USE THEREOF - A bone cement comprising an acrylic polymer mixture which is formulated to have a relatively high viscosity for a relatively long window, due to distributions of molecular weights and/or sizes of acrylic beads.07-01-2010
20130012615ONE-PART DENTAL ADHESIVE COMPOSITION - The present invention provides a one-part dental adhesive composition that exhibits excellent adhesive property and bond durability to a tooth structure (particularly dentin) and has high stability to ambient light, in which respective components have been mixed uniformly. The present invention is a one-part dental adhesive composition including a polymerizable monomer (A) having an acidic group, a polymerizable monomer (B) having a fluorocarbon group represented by the general formula (1), water (C), and a polymerization initiator (D). A content of the polymerizable monomer (A) having an acidic group is 5.5 to 35 parts by weight in 100 parts by weight of the total amount of polymerizable monomers. (In the formula, R01-10-2013
20130023600DENTAL COMPOSITIONS CONTAINING SHORT-CUT FIBERS - The dental composite includes a resin base and a combination of a short-cut fiber filler and a particulate filler. The short-cut fibers may be made of a glass or a polymer, and may have an average length of about 2 mm to about 6 mm. The particulate filler includes a ground structural filler, which consists of particles having an average particle size of between about 0.05 μm and about 0.5 μm, and a microfiller, which consists of particles having a mean particle size of about 0.04 μm or less. The cured dental composite provides high strength, an improved wear resistance, a dramatically improved fracture resistance and a high gloss retention in simulated extended clinical wear.01-24-2013
20090298966DENTAL MATERIAL - The dental material contains a polymerizable dental resin of index of refraction n12-03-2009
20100087565Dental Composites with a Low Shrinkage Tension and High Flexural Strength - Dental composite materials based on (meth)acrylate, exhibiting a proportion of TCD monomers in the total composition of 1-15% by weight and the quotient of flexural strength/shrinkage tension is at least 35.04-08-2010
20080234404Dental Root Canal Filling Material - A dental root canal sealing composition curable in the absence of a polymerisation initiator, which comprises (i) an amino terminated prepolymer having a viscosity at 23° C. of less than 100 Pas. (ii) a compound capable of undergoing polyaddition with the aminoterminated prepolymer (i); (iii) 40 to 85 wt.-% of a filler for providing a minimum radioopacity of at least 3 mm/mm Al.09-25-2008
20090093566Dental releasing materials - Combining nanosized particles of a source of desired dental restorative, repair or therapeutic materials with strengthening agents in various generally nanosized form such as whiskers, fibers, particles and the like in a resin matrix provides a highly strain resistant composite which more effectively releases the therapeutic agents. The utilization of nano sized particles of the therapeutic agent in the combination enables observation of significantly improved therapeutic results.04-09-2009
20130158157COMPOSITE FILLER PARTICLES AND PROCESS FOR THE PREPARATION THEREOF - A process for the preparation of composite filler particles, comprising: (a) coating a particulate filler having a median particle size (D50) of from 1 to 1200 nm; (b) agglomerating the coated particulate filler, for providing a granulation of the coated particulate filler wherein the granulation contains the coated particulate filler particles whereby the at least one coating layer may be crosslinked by crosslinking groups obtained by reacting the reactive groups and optionally a further crosslinking agent.06-20-2013
20100016465Composite Material Comprising A Water-Or Acid-Releasing Agent - The present invention discloses a composite material comprising one or more fillers and a polymerizable resin base, wherein said one or more fillers comprise at least one filler ingredient, said filler ingredient(s) being present in a metastable first phase and being able to undergo a martensitic transformation to a stable second phase, the volume ratio between said stable second phase and said metastable first phase of said filler ingredient(s) being at least 1.005, and wherein said material further comprises one or more water- or acid- releasing agents; as well as a corresponding method of controlling the volumetric shrinkage of a composite material upon curing.01-21-2010
20100298462Self-cure activator - A self curing activator for chemical polymerization of the interface of a dental bonding agent and a self curing or dual curing dental cement or restorative, includes an aryl borate compound, a polymerizable monomer, an optional acidic compound, an amine compound which exhibits a catalytic action, an organic peroxide containing material, and a metal compound wherein said metal compound promotes the decomposition of the organic peroxide.11-25-2010
20090062423ORTHOPAEDIC CEMENT MIXTURES WITH LOW WEIGHT PERCENT POLYVINYL ALCOHOL (PVA) SOLUTION - Orthopaedic bone cement mixtures include a primary material that has a flowable state and a solid mass state and a low weight percent amount of polyvinyl alcohol (PVA) material. The PVA material is distributed in the primary material.03-05-2009
20130158158Paste-Like Bone Cement - The present invention relates to a kit comprising at least two pastes, A and B. Paste A contains at least one monomer for radical polymerisation; and at least one barbituric acid derivative as polymerisation initiator. Paste B contains at least one monomer for radical polymerisation; and at least one heavy metal compound as polymerisation accelerator that is selected from heavy metal salts and heavy metal complexes. Paste B contains less than 0.01% by weight, relative to the total weight of paste B, of a peroxide; at least one of the pastes A and B contains-at least one filling agent that is poorly soluble or insoluble in the monomer for radical polymerization in either paste A or B respectively; and at least one of the pastes A and B contains at least one inorganic halide salt.06-20-2013
20110313078PASTE-LIKE BONE CEMENT - A kit is provided based on two pastes designed to produce bone cement with high initial stability and therefore low post-cure. The kit includes a paste A and a paste B, wherein paste A contains (a1) a polymerizable monomer having a pH in water in the range of 5-9, (a2) a filling agent insoluble in (a1), and (a3) a barbituric acid derivative selected from the group consisting of 1,5-disubstituted barbiturates, 1,3,5-trisubstituted barbiturates, and 1,3,5-tetrasubstituted barbiturates, and paste B contains (b1) a polymerizable monomer having a pH in water in the range of 5-9, (b2) a filling agent insoluble in (b1), (b3) a peroxide soluble in (b1), (b4) a heavy metal compound insoluble in (b1) and selected from the group consisting of heavy metal salts and heavy metal complexes, and wherein at least one of the pastes A and B contains a halide salt.12-22-2011
20080306182Reactive filler for dental cements - A process' for the modification of a particulate reactive filler for a dental ionomer cement, comprising 12-11-2008
20130197126Paste-Like Bone Cement - The present invention relates to a paste, a kit, and the use of the paste for mechanical fixation of articular endoprostheses. The paste contains at least one polymer for radical polymerisation, at least one polymer that is soluble in at least one monomer for radical polymerisation, and at least one filling agent that is poorly soluble or insoluble in at least one monomer for radical polymerisation, whereby the filling agent is a particulate cross-linked polymethacrylate produceable through polymerisation of methacrylic acid esters, whereby08-01-2013

Patent applications in class Cement or filling composition

Patent applications in all subclasses Cement or filling composition