Class / Patent application number | Description | Number of patent applications / Date published |
528048000 | Process of polymerizing in the presence of a specified material other than reactant | 66 |
20090292098 | METHOD FOR PRODUCING COLOURLESS POLYISOCYANATES THAT CONTAIN BIURET GROUPS AND ARE STABLE IN STORAGE - The present invention relates to a process for the preparation of colorless, storage-stable polyisocyanates containing biuret groups from di- or polyisocyanates using water and/or steam as a biuretizing agent, and an apparatus for this purpose and the use thereof. | 11-26-2009 |
20130102753 | LOW RESIDUAL SOLVENT POLYAMIDEIMIDE POWDER FROM SUSPENSION POLYMERIZATION - Disclosed is a method for generating a fine slurry of polyamideimide resin which can be conveniently isolated and dried. The product is completely free of dialkylamide solvents or other toxic substances. | 04-25-2013 |
20140235814 | PREPARATION OF POLYURETHANES AND POLYESTERS FROM GLYCOLIPID TYPE COMPOUNDS - The present invention relates to the use of a compound of formula (I): | 08-21-2014 |
20140275464 | POLYENUREAS AND METHOD OF MAKING THE SAME - A method of making a solid, crosslinked polymer by performing a reaction in a mixture of: 1) an imine selected from polyaldimines, hydroxyaldimines, polyketimines, and hydroxyketimines; 2) a polyisocyanate; and 3) a hydroxyl compound, if the imine is not a hydroxyimine. The imine and the hydroxyl compound are the only isocyanate-reactive compounds in the mixture. The hydroxyl compound is an alcohol, a glycol, or a polyol. The polymer comprises urea linkages formed from the imine and polyisocyanate and urethane linkages formed from the hydroxyl group of the hydroxyimine or the hydroxyl compound and the polyisocyanate, and the molar ratio of urea linkages to urethane linkages is at least 2:1. The reaction is performed in the absence of solvent. | 09-18-2014 |
20160083501 | HARDENABLE SYNTHETIC RESIN COMPRISING CONSIDERABLE PROPORTIONS OF CYCLIC CARBONATE GROUPS, AS WELL AS/AND CYCLOCARBONATE-RESIN-BASED FIXING SYSTEMS, THE PRODUCTION AND USE THEREOF - Synthetic resin fixing system based on cyclic carbonate resins, characterised in that as cyclic carbonate resin it comprises at least one having an average functionality of 1.5 or more than 1.5 cyclic carbonate groups per molecule, the production thereof and use thereof for fixing, especially, anchoring means in drilled holes. | 03-24-2016 |
528049000 | Material contains only one -C-XH,-C-C(=X)-XH or carbon to -NH or HNH group | 11 |
20090124784 | Methods and compounds for curing polythiourethane compositions - The present techniques relate to formulations that include a first part containing active molecules that have an average of at least one thiol group per active molecule and an average of at least one hydroxyl group per active molecule, and a second part containing monomer molecules that have an average of at least two isocyanate groups per monomer molecule. The composition may be mixed with a catalyst composition that contains at least one amine catalyst and at least one metal catalyst. This mixed catalyst composition will substantially cure a mixture of the first part and the second part within less than about 48 hours at ambient temperature. | 05-14-2009 |
20090192283 | PROCESS FOR PREPARING HIGH PERFORMANCE WATERBORNE ALIPHATIC-AROMATIC MIXED POLYURETHANES - The present invention relates to an improved process for preparing high performance aliphatic-aromatic mixed waterborne polyurethanes (PUs). Waterborne PUs prepared from mixed aromatic diisocyanates and aliphatic diisocyanates exhibit superior mechanical properties as compared with those prepared from aliphatic diisocyanates alone. | 07-30-2009 |
20090221784 | BIODEGRADABLE POLYURETHANES - A method for preparing biodegradable polyurethanes includes contacting a flowable quasi-pre-polymer including free aliphatic polyisocyanate compounds with a polyester polyol hardener having a functionality of at least two to form a reactive liquid mixture. The quasi-prepolymer can, for example, be formed by contacting a polyisocyanate component comprising at least one aliphatic polyisocyanate compound with a polyol component comprising at least one polyol compound to form an adduct of the polyisocyanate component and the polyol component wherein a sufficient excess of the polyisocyanate component is used to form the quasi-prepolymer. | 09-03-2009 |
20110218314 | CONTINUOUS OLIGOMERIZATION OF ISOCYANATES - A process for oligomerizing isocyanates includes a step of continuous conversion of an isocyanate monomer into polyisocyanate containing carbamate and/or allophanate groups, in the presence of a catalyst, wherein the conversion step is carried out in a reactor having a specific heat exchange coefficient of greater than or equal to approximately 200 kW/m | 09-08-2011 |
20120271026 | INHIBITION OF AMINE OXIDATION - In an embodiment, an amine-oxidation inhibitor, such as a free radical scavenger and/or antioxidant, is added to an oxidation-sensitive amine, such as an amine catalyst, to inhibit oxidation of the amine. The inhibitor-treated amine may then be used in an application such as a polyurethane application to reduce the emission of undesired oxidation products from the polyurethane. | 10-25-2012 |
20130035466 | METHOD FOR PRODUCING A SKIN LAYER OF A FLEXIBLE, ELASTOMERIC, THERMOSET, PHASE-SEPARATED POLYURETHANE MATERIAL - The thermoset, phase-separated polyurethane material of the flexible skin layer is produced from a reactive mixture which is made of one or more isocyanate compounds and isocyanate reactive compounds which comprise one or more polyol compounds, flexibilisers, chain extenders and/or crosslinkers and amine-initiators. Apart from at least one crosslinking amine-initiator, these amine-initiators further comprise at least one extender amine-initiator which has a functionality of 2 and a molecular weight of less than 300 and which corresponds to formula (I) | 02-07-2013 |
20130165619 | LIGHT-FAST POLYURETHANES AND USE THEREOF - The invention relates to light-fast polyurethanes and to the use thereof. | 06-27-2013 |
20130289232 | NOVEL CYCLIC AMINE COMPOUND AND PROCESS FOR PRODUCING POLYURETHANE RESIN BY USING IT - To provide a novel cyclic amine compound and a process for producing a polyurethane resin by using it. A 3-hydroxy-1,5-diazabicyclo[3.2.2]nonane represented by the following formula (1), and a process for producing a polyurethane resin by using a catalyst for producing a polyurethane resin, which contains the 3-hydroxy-1,5-diazabicyclo[3.2.2]nonane. When the compound represented by the formula (1) has optical isomers, diastereomers or geometric isomers, the compound includes both a mixture of any of them and an isolated isomer of any of them. | 10-31-2013 |
20150344727 | QUATERNARY AMMONIUM SALT-CONTAINING CATALYST FOR DISSOCIATION OF BLOCKING AGENT AND USE THEREOF - A catalyst containing a quaternary ammonium salt represented by the following general formula (1) is used as a catalyst for dissociation of a blocking agent. | 12-03-2015 |
20160002408 | LOW TOXICITY SOLVENT SYSTEM FOR POLYAMIDEIMIDE RESINS AND SOLVENT SYSTEM MANUFACTURE - Disclosed is a low toxicity aprotic alkyl amide solvent system used for the manufacture and application of polyamideimide resins, and an efficient method for manufacturing the polyamideimide resins in a solvent system in a single reaction with distillation which allows recycling of intermediate streams. The solvent system can be used for either the manufacture or the dissolution of polyamideimide resins. | 01-07-2016 |
20180022857 | POLYMER COMPOSITION AND COATINGS PREPARED FROM THE SAME | 01-25-2018 |
528050000 | Material contains compound having a -O-O- group, e.g., peroxide, etc. | 1 |
20150353791 | LAMINATE AND METHOD FOR PRODUCING SAME - The present invention provides a laminate obtained by arranging a composition to be in contact with a rubber, wherein the composition is prepared by blending a polythiol compound (A), an isocyanate group-containing compound (B) and a radical generator (C), and wherein the ratio of the total molar number of the isocyanate group contained in the isocyanate-containing compound (B) to the total molar number of the thiol group contained in the polythiol compound (A) (isocyanate group/thiol group) is from 0.2 to 0.78, and provides a method for producing the laminate. The present invention thus provides a laminate, in which the rubber layer is adhered using at least one of an adhesive or an adhesive sheet capable of strongly adhering a rubber member, especially a vulcanized rubber member, and provides a laminate adhering to a rubber article using at least one of a coating agent and a coating sheet. | 12-10-2015 |
528051000 | Material contains a phosphorus atom | 8 |
20080312402 | Novel Zirconium Compound, Catalyst and Its Use for Polyurethane Manufacture - The invention comprises a catalyst compound of formula Zr(L)(A | 12-18-2008 |
20090275723 | PROCESSES FOR MAKING STABILIZED DIVALENT GERMANIUM AND TIN COMPOUNDS - Processes for making ivalent germanium and tin compounds are provided. The divalent germanium and tin compounds have been found to be efficient catalysts for the formation of polyurethanes. | 11-05-2009 |
20100249359 | WATER-STABLE CATALYSTS FOR POLYURETHANE MANUFACTURE - A method of manufacturing a polyurethane compound comprises mixing together a polyol, a polyisocyanate compound and a catalyst and allowing the mixture to cure to form a polyurethane, and is characterised in that the catalyst is a neutral complex of a metal selected from Ti, Zr, Hf, Al, Fe, Bi or Sn and a multidentate organic ligand having: a) a number of anionic donor sites=x; b) a number of neutral donor sites, capable of forming a co-ordinate bond with the metal, =y; c) where x+y=from 5 to 8; d) x is from 2 to 4; e) the ligand molecule is of a size and conformation to enable each of the anionic donor sites and neutral donor sites to form a bond with the same metal atom. | 09-30-2010 |
20130066034 | POLYMERIZATION CATALYST FOR POLYTHIOURETHANES, POLYMERIZABLE LIQUID COMPOSITION AND PROCESS FOR THE PRODUCTION OF ORGANIC POLYTHIOURETHANE GLASS WITH A HIGH REFRACTIVE INDEX - Polymerization catalysts for organic polythiourethane glass which do not contain organometallic compounds contain a mixture of a tertiary aliphatic amine and a disubstituted phosphoric acid in a molar ratio ranging from 1/1.3 to 1/20. Polymerizable liquid compositions containing three components (A), (B) and (C) are also provided, wherein component (A) contains at least one cycloaliphatic diisocyanate monomer wherein the weight percentage of free isocyanate groups in component (A) ranges from about 20% to about 50% by weight with respect to the total weight of component (A); component (B) contains at least one polythiol having a molecular weight ranging from 50 to 1,200 g/moles and a functionality ranging from 2 to 5, said components (A) and (B) being present in a weight ratio varying from 0.5:1 to 2:1; and component (C) being said polymerization catalyst. A process for the production of organic glass using the polymerizable liquid composition is further provided. | 03-14-2013 |
20140323678 | POLYMERIZATION CATALYST FOR POLYTHIOURETHANES, POLYMERIZABLE LIQUID COMPOSITION AND PROCESS FOR THE PRODUCTION OF ORGANIC POLYTHIOURETHANE GLASS WITH A HIGH REFRACTIVE INDEX - Polymerizable liquid compositions containing three components (A), (B) and (C) are provided, wherein component (A) contains at least one cycloaliphatic diisocyanate monomer wherein the weight percentage of free isocyanate groups in component (A) ranges from about 20% to about 50% by weight with respect to the total weight of component (A); component (B) contains at least one polythiol having a molecular weight ranging from 50 to 1,200 g/moles and a functionality ranging from 2 to 5, the components (A) and (B) being present in a weight ratio varying from 0.5:1 to 2:1; and component (C) being a defined polymerization catalyst. A process for the production of organic glass using the polymerizable liquid composition is further provided. | 10-30-2014 |
20160159963 | USE OF SUCCINONITRILE IN THE PRODUCTION OF POLYISOCYANATES COMPRISING IMINOOXADIAZINEDIONE GROUPS - The present invention relates to a method for producing polyisocyanates comprising iminooxadiazinedione groups, wherein at least one monomeric di- and/or tri-isocyanate is oligomerised in the presence of at least one catalyst and succinonitrile. The invention relates further to a reaction system for producing polyisocyanates comprising iminooxadiazinedione groups, and to the use of succinonitrile in the production of polyisocyanates comprising iminooxadiazinedione groups by catalysed modification of monomeric di- and/or tri-isocyanates. | 06-09-2016 |
20160159964 | PROCESS FOR PREPARING ISOCYANATE HOMOPOLYMERS CONTAINING URETDIONE GROUPS - The present invention relates to a process for preparing isocyanate homopolymers containing uretdione groups, in which the phosphinoboron compound of formula (I) are used as catalysts to catalyze the homopolymerization reaction of raw isocyanates, thereby obtaining a solution of isocyanate homopolymers having uretdione groups, then separating the solution and thus obtaining the isocyanate homopolymers containing uretdione groups. The isocyanate homopolymers containing uretdione groups prepared by this process have a high amount of the uretdione groups, wherein the dependence of the amount on the conversion rate of raw isocyanates is significantly ameliorated, with low chromaticities. | 06-09-2016 |
20180022871 | PROCESS FOR THE SYNTHESIS OF POLYOXAZOLIDINONE COMPOUNDS WITH HIGH STABILITY | 01-25-2018 |
528052000 | Material is organic nitrogen-containing compoud | 25 |
20080300376 | Method for the Production of Multimetal Cyanide Compounds - Process for preparing multimetal cyanide compounds, which comprises the steps | 12-04-2008 |
20090093606 | Shape memory fibers prepared via wet, reaction, dry, melt, and electro spinning - The present invention relates to methods for synthesizing shape memory polyurethanes, and fibers therefrom. The polyurethanes can be synthesized via solution polymerization or bulk polymerization. Following synthesis, the polyurethanes can be treated via wet spinning, dry spinning, reaction spinning, melt spinning, or electro spinning. | 04-09-2009 |
20100298520 | POLYOXAZOLIDONES DERIVED FROM BISANHYDROHEXITOLS - Disclosed is a method for preparing polyoxazolidones wherein an ether of a bisanhydrohexitol is reacted with a diisocyanate under conditions which form polyoxazolidones. Preferred bisanhydrohexitols include isoidide, isomannide and isosorbide. The polyoxazolidones are highly crosslinked, rigid, and have high solvent resistance. | 11-25-2010 |
20120059141 | CATALYZED PELLET HEAT TREATMENT FOR THERMOPLASTIC POLYURETHANES - The invention relates to a process for preparing a thermoplastic polyisocyanate polyaddition product based on polyisocyanate (i) and compounds which are reactive toward polyisocyanate, with or without the use of chain extenders, a first catalyst (iv) and/or auxiliaries and/or additives (v), wherein a second catalyst is initially vaporized and then applied to the polyisocyanate polyaddition product by condensation, and to the products prepared therefrom. | 03-08-2012 |
20130072655 | PROCESS FOR PRODUCING POLYURETHANES - The invention relates to a process for producing polyurethanes by reacting
| 03-21-2013 |
20150353673 | EPOXY RESIN, METHOD FOR PRODUCING EPOXY RESIN, EPOXY RESIN COMPOSITION, AND CURED ARTICLE - An object of the present invention is to provide an epoxy resin that does not release compounds suspected of being endocrine-disrupting chemicals, and can be used as a starting material for cured products having excellent surface hardness, excellent chemical resistance, excellent lightfastness, and excellent flexibility. The epoxy resin of the present invention has a number-average molecular weight from 400 to 100,000, and is represented by the following general formula (1): | 12-10-2015 |
20150376326 | POLYURETHANES MADE USING ZINC CATALYSTS - Polyisocyanate-based polymers are formed by curing a reaction mixture containing at least one polyisocyanate and at least one isocyanate-reactive compound having at least two isocyanate-reactive groups in the presence of a zinc catalyst that contains at least one zinc atom associated with a polydentate ligand that contains at least one nitrogen-containing complexing site. | 12-31-2015 |
20190144592 | METHOD FOR PRODUCING A POLYISOCYANURATE COMPOSITE MATERIAL | 05-16-2019 |
528053000 | Organic nitrogen compound contains a nitrogen atom bonded to three atoms or carbon | 17 |
20080262186 | Catalysts for the Production of Polyisocyanates - Disclosed is a method for making oligomeric and polymeric isocyanates, particularly uretdiones and isocyanurates, by reacting diisocyanates in the presence of a catalyst, wherein the catalyst comprises either free N-heterocyclic carbenes, imidazolylidene carboxylates, triazolylidene carboxylates, or salts thereof. | 10-23-2008 |
20080306237 | Highly Functional, Highly Branched Polyureas - The present invention relates to a process for preparing high-functionality highly branched polyureas which comprises reacting one or more ureas with one or more amines having at least two primary and/or secondary amino groups, at least one amine having at least three primary and/or secondary amino groups. | 12-11-2008 |
20090012258 | Process for producing urethane resin and pressure-sensitive adhesive - A process for producing a urethane resin having a low viscosity and usable as a wide range of pressure-sensitive adhesives ranging from a strong-tack region to a slight-tack region, and a pressure-sensitive adhesive are provided. The process for producing a urethane resin comprises reacting a polyol with a polyisocyanate compound in such a proportion that isocyanate groups are in excess to thereby obtain an isocyanate-group-terminated prepolymer, thereafter reacting the isocyanate-group-terminated prepolymer with a chain extender, and reacting the resultant polymer with a chain terminator, wherein the chain extender has three or more functional groups reactive with an isocyanate group, wherein one of the functional groups is a primary amino group or a secondary amino group, another is a primary hydroxyl group, and the remaining functional group(s) are a secondary hydroxyl group or a tertiary hydroxyl group. The pressure-sensitive adhesive comprises the urethane resin obtained. | 01-08-2009 |
20090048418 | Organic polyurethane shape memory material and a preparation method thereof - An organic polyurethane shape memory material and a preparation method thereof are disclosed. The organic polyurethane shape memory material includes a C10 chain or C18 chain and it consists of hard segment and soft segment. The preparation method thereof includes the steps of: | 02-19-2009 |
20100029890 | POLYMERIZATION CATALYST FOR POLYTHIOURETHANE OPTICAL MATERIAL, POLYMERIZABLE COMPOSITION CONTAINING THE SAME, POLYTHIOURETHANE RESIN OBTAINED FROM THE COMPOSITION, AND PROCESS FOR PRODUCING THE RESIN - By using an amine hydrochloride represented by the formula (1) as a catalyst, a polythiourethane resin which is suitably used for a transparent resin for optical use, can be obtained without using an organotin compound which has been conventionally used as a catalyst for polythiourethane resins and without being affected by the acidity of an additive: | 02-04-2010 |
20100179297 | REACTIVE AMINE CATALYSTS FOR POLYURETHANE FOAM - Polyurethanes made using compounds of formula A: | 07-15-2010 |
20110054140 | NEW CATALYSTS AND USE THEREOF IN THE PRODUCTION OF POLYURETHANES - The present invention relates to new catalysts and production thereof as well as the preferred use thereof in the production of polyisocyanate polyaddition products. | 03-03-2011 |
20110065884 | POLYMERIZATION CATALYST FOR POLYTHIOURETHANE OPTICAL MATERIAL, POLYMERIZABLE COMPOSITION CONTAINING THE SAME, POLYTHIOURETHANE RESIN OBTAINED FROM THE COMPOSITION, AND PROCESS FOR PRODUCING THE RESIN - By using an amine hydrochloride represented by the formula (1) as a catalyst, a polythiourethane resin which is suitably used for a transparent resin for optical use, can be obtained without using an organotin compound which has been conventionally used as a catalyst for polythiourethane resins and without being affected by the acidity of an additive: | 03-17-2011 |
20110082274 | NOVEL POLYUREA FIBER - Aromatic polyurea fiber with improved modulus, strength, toughness and environmental resistance and method of synthesis. | 04-07-2011 |
20120071622 | Method for Providing a Secondary or Tertiary Amine - A method for providing a secondary or tertiary amine with formula (R | 03-22-2012 |
20130225781 | POLYURETHANES MADE USING ZINC CATALYSTS - Polyisocyanate-based polymers are formed by curing a reaction mixture containing at least one polyisocyanate and at least one isocyanate-reactive compound having at least two isocyanate-reactive groups in the presence of a zinc catalyst that contains at least one zinc atom associated with a polydentate ligand that contains at least one nitrogen-containing complexing site. | 08-29-2013 |
20150065675 | POLYURETHANES MADE USING BISMUTH THIOCARBAMATE OR THIOCARBONATE SALTS AS CATALYSTS - Polyisocyanate-based polymers are formed by curing a reaction mixture containing at least one polyisocyanate and at least one isocyanate-reactive compound having at least two isocyanate-reactive groups in the presence of a bismuth mono- or dithiocarbamate or mono- or dithiocarbonate salt. | 03-05-2015 |
20150299393 | LOW TOXICITY SOLVENT SYSTEM FOR POLYAMDIEIMIDE AND POLYAMIDE AMIC ACID RESIN MANUFACTURE - Techniques and mechanisms to reduce toxicity in manufacturing of a polyamideimide and polyamide amic acid resin polymer. In an embodiment, a polyamideimide is produced using at least one aprotic dialkylamide solvent and at least one co-solvent. In another embodiment, the at least one co-solvent is selected from the group consisting of methyl actetate, n-propyl acetate, t-butyl acetate, iso-butyl acetate, ethyl acetate, isopropyl acetate, methyl lactate, ethyl lactate, n-propyl lactate, isopropyl lactate, n-butyl lactate, isobutyl lactate, t-butyl lactate, cyclohexanone, cyclopentanone, n-butyl acetate, methyl alcohol, ethyl alcohol, isopropyl alcohol, n-acetyl morpholine, ε-caprolactone and methylcyclohexane. | 10-22-2015 |
20190144593 | METHOD FOR PRODUCING A POLYISOCYANURATE COMPOSITE MATERIAL | 05-16-2019 |
528054000 | Nitrogen compound wherein nitrogen atom is bonded to three atoms of carbon contains a bridged- or fused-ring system, e.g., triethylene diamine, etc. | 3 |
20090143558 | Preparation of uretdione polyisocyanates - The invention relates to the use of specific pyridines as catalysts for the dimerization of isocyanates (uretdione formation) and a process for preparing polyisocyanates having a high content of uretdione groups. | 06-04-2009 |
20130303720 | POLYISOCYANATE POLYADDITION PRODUCTS, A PROCESS FOR PREPARATION THEREOF AND USE THEREOF - The invention relates to polyisocyanate polyaddition products, to a process for preparation thereof and to the use thereof. | 11-14-2013 |
20140221594 | Polyurethanes Made Using Mixtures of Tertiary Amine Compounds and Lewis Acids as Catalysts - Polyisocyanate-based polymers are formed by curing a reaction mixture containing at least one polyisocyanate and at least one isocyanate-reactive compound having at least two isocyanate-reactive groups in the presence of a tertiary amine catalyst having a molecular weight of up to 300 and from 0.01 to 1.0 mole per mole of the tertiary amine compound(s) of a non-protic, non-catalytic, metal-containing Lewis acid. | 08-07-2014 |
528055000 | Material contains at least one metal atom | 16 |
20130079485 | SULFUR-CONTAINING POLYUREAS AND METHODS OF USE - Disclosed are sulfur-containing polyurea compositions and methods of using the compositions as sealants, particularly as low specific-gravity aerospace sealants. | 03-28-2013 |
20140148568 | METHOD FOR PRODUCING CYANURATE NETWORKS VIA INDUCTIVE HEATING OF SILICA-COATED MAGNETIC NANOPARTICLES - A method for curing a macromolecular cyanurate network. The method of curing includes suspending a plurality of functionalized silica-coated magnetic nanoparticles in a resin mixture, which includes cyanate ester monomers, cyanate ester oligomers, or both. After a static magnetic field is applied to the plurality of functionalized silica-coated magnetic nanoparticles in the resin mixture, an alternating electromagnetic field (having frequency ranging from about 1 kHz to about 10 MHz) is imposed for a cure time. | 05-29-2014 |
528056000 | Material contains a transition metal atom | 3 |
20110040065 | POLYESTER RESIN, PRODUCTION PROCESS THEREFOR AND USE THEREOF - Polyester resins (C) of the invention have a practically sufficient high molecular weight and a high crystallinity and have an amide group in the molecular chain. Processes for producing the polyester resins are also disclosed. In detail, the polyester resins (C) have a practically sufficient high molecular weight and a high crystallinity and have a biodegradable amide group in the molecular chain. Processes for producing the polyester resins are also disclosed. | 02-17-2011 |
20120157651 | THIOURETHANE-BASED LENS ELEMENTS AND PROCESSES FOR THEIR PRODUCTION - An optical lens element resin composition including:
| 06-21-2012 |
20150291726 | METHOD FOR THE PRODUCTION OF OXAZOLIDINONE COMPOUNDS - The present invention relates to a method for the production of oxazolidinone compounds, comprising the step of slowly reacting an isocyanate compound with an epoxide compound in the presence of a Lewis acid catalyst. The invention further relates to an oxazolidinone compound, obtainable by a method according to the invention, with a colour as determined according to ASTM D1209-05 (2011) of ≦200 and a molar ratio of the oxazolidinone compound to isocyanurate by-product o/i of ≧85/15. Lastly, the invention relates to an oligomeric or polymeric oxazolidinone compound, obtainable by a method according to the invention using an isocyanate compound with two or more NCO groups per molecule and an epoxide compound with two or more epoxy groups per molecule, comprising at least two units derived from the isocyanate compound and at least two units derived from the epoxide compound, with a colour as determined according to ASTM D1209-05 (2011) of ≦200. | 10-15-2015 |
528057000 | Material contains at least one group IA or group IIA metal atom | 3 |
20160075816 | A Method For Improving Toughness of Polyisocyanate Polyaddition Reaction Products - Use of compounds selected from polyols derived from dimer fatty acids and/or dimer fatty alcohols as toughening agent in a process for making polyisocyanate polyaddition reaction products, in particular for polyisocyanate polyaddition reaction products having a hardblock >40% and a process for making said products. | 03-17-2016 |
20190144596 | HYDROPHILICALLY MODIFIED POLYISOCYANURATE PLASTIC AND PROCESS FOR PRODUCTION THEREOF | 05-16-2019 |
20190144597 | HYDROPHOBICALLY MODIFIED POLYISOCYANURATE PLASTIC AND METHOD FOR PRODUCTION THEREOF | 05-16-2019 |
528058000 | Material contains at least one atom of tin | 8 |
20100063238 | ISOCYANATE TRIMER MODIFIED WITH SILANE OR POLYSILOXANE AND METHOD OF PREPARAING THE SAME - An isocyanate trimer modified with silane or functional polysiloxane and having formula of | 03-11-2010 |
20110213114 | DENDRON, POLYURETHANE WITH SIDE-CHAIN REGULAR DENDRON, AND PRODUCING METHODS THEREOF - A dendron with hydrophobic functional of end group, a polyurethane with the dendron, and producing methods thereof are disclosed. The dendron with hydrophobic functional of end group in the polyurethane systems, and the honeycomb-like structure thin films were obtained by a breath-figure process. The structures of dendron and dendritic side-chain polyurethanes are respectively expressed in the following. Therein, the end-groups (R) of the dendron are long alkyl chains or perfluoroalkyl derivatives. | 09-01-2011 |
20110245449 | MELT ADHESIVES CONTAINING THERMOPLASTIC POLYURETHANES - The invention relates to an improved method of melt adhesive bonding on the basis of a thermoplastic polyurethane using a thermoplastic polyurethane (TPU) obtainable from essentially a symmetrical aliphatic diisocyanate A and at least one isocyanate-reactive compound B comprising hydroxyl and/or amino groups as an adhesive, wherein the number-average molecular weight (Mn) of compound B is at least 2200 g/mol, with the proviso that it is at least 950 g/mol if compound B is a sebacic ester, diisocyanate A and at least one isocyanate-reactive compound B are reacted in the presence of a catalyst for the polyaddition reaction, the TPU comprises no chain extender, the TPU has an index IN of less than 1000, preferably of less than 990, and more preferably of less than 980, and melt adhesive bonding by the TPU in melt state takes place at a temperature from 50° C. to 160° C. in the absence of solvents, and to substrates bonded therewith. | 10-06-2011 |
20120264905 | POLYACTIC ACID-BASED POLYOL COMPOSITION, PROCESS FOR PRODUCTION THEREOF, URETHANE RESIN COMPOSITION, PROCESS FOR PRODUCTION OF SAME, AND MOLDED PRODUCTS THEREOF - Provided is a polylactic acid-based polyol composition in which a catalyst that remains in the polylactic acid-based polyol and that acts also as a catalyst for urethane formation has been deactivated by easy means. Thus, the polylactic acid-based polyol composition suffers from little influence of the catalyst on urethane formation. When the polylactic acid-based polyol composition is used as a raw material for a urethane resin, therefore, uniform molded products can be obtained. Also provided are a process for the production of the polylactic acid-based polyol composition, a urethane resin composition obtained using the polylactic acid-based polyol composition, a process for the production of the same, and molded products thereof. The polylactic acid-based polyol composition is a composition which comprises both a polylactic acid-based polyol prepared by transesterification and a silica compound and in which the silica compound has a surface area of 40 m | 10-18-2012 |
20120302718 | Polyisocyanate Polyaddition Products, Method for Producing Same, and Use Thereof - The invention relates to polyisocyanate polyaddition products, to a method for producing same, and to the use thereof. | 11-29-2012 |
20130267673 | COMPOSITION FOR OPTICAL MATERIAL - The present invention relates to a composition for an optical material, which is capable of suppressing occurrence of polymerization unevenness called striae, in particular, striae to be caused in high-powered lenses with sharp curves, and more specifically relates to a composition for an optical material including: a polymerization catalyst having a mass ratio of dibutyltin dichloride to monobutyltin trichloride of 97.0/3.0 to 100.0/0.0; a polythiol compound; and a polyiso(thio)cyanate compound. | 10-10-2013 |
20140336347 | METHOD OF REDUCING ODORS OF LIPID-BASED POLYOLS - A method of reducing odors in lipid-based polyol. At least one lipid-based polyol is provided, and mixed with ricinoleic acid and/or a metal salt of ricinoleic acid. Isocyanate may be added, preferably toluene diisocyanate (TDI). The polyol, and the isocyanate when present, are reacted in the presence of the ricinoleic acid and/or a metal salt of ricinoleic acid which reduces or removes odors in the lipid-based polyol. When isocyanate is used, low, limiting levels are preferred, well below the level required to fully react with all of the polyol. Tin, zinc, sodium, and calcium ricinoleic acid metal salts are particularly preferred. Preferably the reaction takes place without added heat, at room temperature. The reaction may be performed in a chamber which is under at least a partial vacuum. | 11-13-2014 |
20150133623 | METHODS FOR IMPROVING THE RESISTANCE TO HYDROLYSIS IN POLYURETHANE (PU)-BASED SYSTEMS - The invention relates to novel processes for improving hydrolysis resistance in polyurethane (PU) based systems, preferably PU adhesives, PU casting resins, PU elastomers or PU foams. | 05-14-2015 |