Class / Patent application number | Description | Number of patent applications / Date published |
525403000 | Solid polymer is derived from 1,2-epoxy compound containing only one 1,2 epoxy group as sole reactant and wherein none of the reactants contains a plurality of methylol groups or derivatives thereof | 63 |
20080227926 | CROSSLINKERS CONTAINING SILANE - A crosslinker (i.e., a curing agent) for polymerizing a film-forming material. The crosslinker is an organic compound including at least two functional groups reactive with a film-forming material and at least one pendent group comprising a —Si(OR) | 09-18-2008 |
20080255315 | Epoxy Resin Composition,Cured Article Thereof, Semiconductor Sealing Material, Novel Phenol Resin, Novel Epoxy Resin,Method for Producing Novel Phenol Resin, And Method For Producing Novel Epoxy Resin - An epoxy resin composition including an epoxy resin and a curing agent as essential components, in which the curing agent comprises a phenol resin which has each structural moiety of a phenolic hydroxyl group-containing aromatic hydrocarbon group (P), an alkoxy group-containing aromatic hydrocarbon group (B) and a divalent aralkyl group (X), and also has, in a molecular structure, a structure in which the phenolic hydroxyl group-containing aromatic hydrocarbon group (P) and the alkoxy group-containing aromatic hydrocarbon group (B) are bonded with the other phenolic hydroxyl group-containing aromatic hydrocarbon group (P) or alkoxy group-containing aromatic hydrocarbon group (B) via the divalent aralkyl group (X). | 10-16-2008 |
20080262164 | Isotactic specific catalyst for direct production of highly isotactic poly (propylene oxide) or highly isotactic poly (butylene oxide) - (Salph or methoxy salph) Co (initiating ligand) catalyze homopolymerizing rac-PO to produce pure highly isotactic PPO and rac-1-butylene oxide to produce pure isotactic poly(butylene oxide). A product is unfractionated isotactic PPO of m-dyad content >81%, normally at least 99%. | 10-23-2008 |
20080287611 | SILANE VARNISHES COMPRISING AMINOSILANES AND EPOXY-FUNCTIONAL POLYACRYLATES - The invention relates to silane coatings obtainable by reaction of aminosilanes with glycidyl (meth)acrylate copolymers. | 11-20-2008 |
20080312382 | Polyether Block Copolymers - A block copolymer comprising a first polyether block including a pendant alkoxyfluoroalkyl group, and a second polyether block that is substantially devoid of pendant alkoxyfluoroalkyl groups and includes at least two distinct units. | 12-18-2008 |
20090005516 | Curing Agent for Epoxy Resins - Curing agent for epoxy resins, comprising
| 01-01-2009 |
20090030158 | RESIN COMPOSITION - Resin compositions which contain a compound having at least two epoxy and/or thiirane groups in the molecule (ingredient (1)) and a specific ionic liquid (ingredient (2)), as combined, are practicable resin compositions which comprise constitutive elements of readily available materials and have well-balanced suitable curing capability and storage stability. Preferably, the ionic liquid (ingredient (2)) comprises a combination of an ammonium cation or phosphonium cation and a carboxylate anion. | 01-29-2009 |
20090105427 | Cleavable Block Copolymers, Functionalized Nanoporous Thin Films and Related Methods of Preparation - Cleavable, disulfide-coupled block copolymers as can be used in the preparation of nanoporous thin films, micellar configurations and related structures. | 04-23-2009 |
20090156752 | CARBOXYL GROUP-CONTAINING POLYURETHANE AND HEAT-CURABLE POLYURETHANE RESIN COMPOSITION - A carboxyl group-containing polyurethane is capable of giving cured products excellent in adhesion with substrates, low warpage, flexibility, plating resistance, soldering heat resistance and long-term reliability. The carboxyl group-containing polyurethane includes a structure derived from a polyol compound having 1 to 10 hydroxyl groups and 18 to 72 carbon atoms per molecule. The carboxyl group-containing polyurethane is produced by reacting: (A) a polyisocyanate compound; (B) a polyol compound having 1 to 10 hydroxyl groups and 18 to 72 carbon atoms per molecule; and (C) a carboxyl group-containing dihydroxy compound (other than the compound (B)). | 06-18-2009 |
20090312500 | END CAPPING ADDITIVE FOR POLYCONDENSATE POLYMER RESINS - A polymeric composition including a mono-functional, low molecular weight, low epoxy content end-cap which includes the polymerization product of at least one epoxy-functional monomer and at least one styrenic and/or (meth)acrylic monomer, with a polyfunctional chain extender; and at least one condensation polymer. | 12-17-2009 |
20100048827 | CURING AGENT FOR LOW TEMPERATURE CURE APPLICATIONS - The present invention discloses both amine compositions and amine-epoxy compositions containing N,N′-dimethyl-meta-xylylenediamine. A novel process for producing amines such as N,N′-dimethyl-meta-xylylenediamine, and structurally similar amines, is also disclosed. | 02-25-2010 |
20100130698 | DEVELOPMENT OF A NOVEL CROSS-LINKED EPOXY RESIN WITH FLAME-RETARDANT PROPERTIES - The invention discloses a novel cross-linked epoxy resin with flame-retardant properties and method for producing the same. The polymeric material of the invention includes an epoxy resin, a curing agent and a modification agent. Particularly, the modification agent is a derivative of 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-Oxide (DOPO). Moreover, the curing agent is 4,4′-diaminodiphenyl methane (DDM), or tris(4-aminephenyl)amine (NNH). | 05-27-2010 |
20100331494 | PROCESS AND APPARATUS FOR PURIFYING SOLID SALT COMPOSITIONS - Methods and apparatus for the recovery and purification of solid salt compositions from an organic liquid containing epoxy resin and at least one of epihalohydrin and solvent to obtain purified salt and/or brine compositions that may be useful in industrial processes. | 12-30-2010 |
20110065869 | Hydroxyphenyl phosphine oxide mixtures and their use as flame retardant's for epoxy resins - A hydroxyphenyl or alkoxyphenyl phosphine oxide composition comprising (i) a first mixture of mono-(hydroxyphenyl) or (alkoxyphenyl) phosphine oxide isomers, (ii) a second mixture of bis-(hydroxyphenyl) or (alkoxyphenyl) phosphine oxide isomers, (iii) a third mixture of tris-(hydroxyphenyl) or (alkoxyphenyl) phosphine oxide isomers, and optionally iv) a minority amount of non-hydroxy or non-alkoxy tris-phenyl phosphine oxides is provided. Also provided are epoxy resins compositions with excellent flame retardancy and physical properties, which resins comprise the phosphine oxide composition | 03-17-2011 |
20110065870 | Tris(Hydroxoxyphenyl) Phosphine Oxides and their Use as Flame Retardants for Epoxy Resins - A mixture of tris(hydroxyphenyl) or tris(alkoxyphenyl) phosphine oxide isomers is provided each having the formula (I): | 03-17-2011 |
20120029156 | Epoxy Curing Compositions and Methods - Disclosed are accelerator/curing agent compositions for epoxy resins, comprising (a) at least one aromatic or alicyclic compound containing at least two amine moieties, such amine-containing aromatic or alicyclic compound(s) preferably having from 3 to 5 amine hydrogens per compound and preferably two primary amines per compound, (b) at least one aliphatic compound containing at least two amine moieties, such compound(s) preferably having from 2 to 4 amine hydrogens per compound and one primary and one secondary amine per compound, and (c) at least one non-reactive catalytic compound, preferably having no amine hydrogens. The compositions are useful as drop-in replacements for N-aminoethylpiperazine. | 02-02-2012 |
20160053145 | ALKOXYSILYL-CONTAINING ADHESIVE SEALANTS WITH INTRINSICALLY REDUCED VISCOSITY - The present invention provides specific alkoxylation products, a process for preparing them, compositions which comprise these alkoxylation products, and the use thereof. | 02-25-2016 |
525404000 | Mixed with ethylenically unsaturated reactant or polymer therefrom | 9 |
20080221276 | Silicone-containing graft copolymers of blockwise structure - The invention describes novel silicone-containing graft copolymers and processes for their preparation. In particular, it relates to silicone-containing graft copolymers P, which are obtained by grafting olefinic monomers M onto polyether-containing radicals of polyoxyalkylene-polysiloxane block copolymers S with (AB) | 09-11-2008 |
20090030159 | Alkylated Aminopropylated Ethylenediamines And Uses Thereof - The present invention provides epoxy curing agent compositions comprising alkylated aminopropylated alkylenediamine compounds. Amine-epoxy compositions and articles produced from these amine-epoxy compositions are also disclosed. | 01-29-2009 |
20100298503 | FLUOROELASTOMER PROCESS AID CONTAINS POLYALKYLENE OXIDE AND POLYCAPROLACTONE - A process aid for improving the processability of non-fluorinated melt processible polymers contains a fluoroelastomer having a Mooney viscosity (ML (1+10) at 121° C.) between 30 and 100 and at least two interfacial agents, one a polycaprolactone having a Mn between 2000 and 8000 and the other a polyalkylene oxide having a Mn between 3000 and 5000. | 11-25-2010 |
20110172372 | CURABLE COMPOSITION AND METHOD FOR IMPROVING RECOVERY PROPERTIES AND CREEP PROPERTIES - Disclosed are a curable composition characterized by using a curable composition including an organic polymer (A1) having one or more silicon-containing functional groups capable of cross-linking by forming siloxane bonds in which the one or more silicon-containing functional groups capable of cross-linking by forming siloxane bonds are silicon-containing functional groups each having three or more hydrolyzable groups on one or more silicon atoms thereof; and a method for controlling the recovery properties, durability and creep resistance of the cured article. Herewith, the present invention provides a curable composition capable of giving a cured article excellent in recovery properties, durability and creep resistance, and a method for controlling the recovery properties, durability and creep resistance of the cured article. | 07-14-2011 |
20110213096 | Curing Agents for Epoxy Resins - A curing agent for epoxy resin has one or more five- or six-membered aromatic rings, and substituted on the one or more five- or six-membered rings at least two functionalities reactive with the epoxy selected from the group consisting of hydroxyl, amine, imidazole, azine, hydrazide, anhydride, and Lewis acid groups. Choice of functionality can provide a mixed polymer network, one with a more densely cross-linked polymer structure having a high Tg, and the other with a more linear polymer structure to contribute to stress reduction. | 09-01-2011 |
20110224383 | POLY(ETHYLENE GLYCOL) DERIVATIVES FOR METAL-FREE CLICK CHEMISTRY - The present invention provides bifunctional polymers, methods of preparing the same, and intermediates thereto. These compounds are useful in a variety of applications including the PEGylation of biologically active molecules. The invention also provides methods of using said compounds and compositions thereof. | 09-15-2011 |
20120022220 | Method for Preparing Polymer Maleimides - Methods for preparing polymeric reagents bearing a maleimide are provided. Also provided are related compositions. | 01-26-2012 |
20120208966 | COMPOSITION FOR SEMICONDUCTIVE RUBBER, CROSSLINKED RUBBER PRODUCT, AND SEMICONDUCTIVE PARTS - A composition for a semiconductive rubber, comprising an epichlorohydrin-based rubber (a), an ethylene oxide-modified (meth)acrylate (b), and at least one kind of a crosslinking agent (c) selected from the group consisting of a sulfur-based crosslinking agent, a quinoxaline-based crosslinking agent and a triazine-based crosslinking agent. | 08-16-2012 |
20150073098 | METHOD OF PRODUCTION OF CROSS-LINKED RUBBER - A method of producing cross-linked rubber including a step of reacting a polyether rubber composition at 130 to 200° C., the polyether rubber composition containing 100 parts by weight of epihalohydrin monomer units, 0.1 to 100 parts by weight of a five-membered ring or six-membered ring nitrogen atom-containing aromatic heterocyclic type compound, and 0.1 to 10 parts by weight of at least one cross-linking agent which is selected from sulfur, a sulfur-containing compound, and triazine-based compound. | 03-12-2015 |
525405000 | Mixed with aldehyde or aldehyde derivative reactant or polymer therefrom | 1 |
20080200617 | Halogen-Free Flameproof Epoxy Resin Formulations - The invention relates to a method for preparing halogen-free flameproof epoxy resins, in which a halogen-free epoxy resin is reacted with a polyfunctional aldehyde or ketone and a phosphinic acid derivative, wherein the phosphinic acid derivative contains at least one P—H-active structural unit of the formula ═PH(O) and is used in an amount equivalent to the polyfunctionality of the aldehyde or ketone, to a halogen-free flameproof epoxy resin obtainable by this method, to the use of the epoxy resin as a base material for the manufacture of printed circuit boards and printed circuits and to intermediates used to prepare the epoxy resins. | 08-21-2008 |
525407000 | Mixed with 1,2-epoxy reactant containing more than one 1,2-epoxy group per mole or polymer derived therefrom | 6 |
20100048828 | ESTER PRE-EXTENDED EPOXY-TERMINATED VISCOSIFIERS AND METHOD FOR PRODUCING THE SAME - Viscosifiers, especially terminated polymers that have functional terminal groups, the polymers being pre-extended by polyols and being reacted to give polymers that are terminated by other functional groups, are produced. The viscosifiers have a low content in educts or educt descendants that deteriorate the properties of compositions. The formation of high-molecular addition products is considerably reduced or even excluded so that the products obtained have low viscosity and good storage stability. The epoxy-terminated polymer of formula (I) is especially preferred. | 02-25-2010 |
20100311916 | ELECTRIC CIRCUIT BOARD COMPOSITION AND A METHOD OF PREPARING CIRCUIT BOARD - The present invention provides a new epoxy resin which is modified with halide and oxazolidone ring. This epoxy resin can improve the peeling strength, Tg, heat resistance, and flame resistance for CCL and be used for print circuit board. The composition comprising (A) a halogen-containing epoxy which containing a oxazolidone ring, about 5˜95 wt % of total weight, (B) epoxy resins with two or above epoxy groups, about 95˜5 wt % of total weight, (C) a curing agent, example of phenol novolac, and (D) a curing accelerator. After laminating the prepreg which had been made by impregnation of the mentioned composition at 170˜210 with 10˜30k gf/cm | 12-09-2010 |
20130281632 | CURABLE COMPOSITION - Provided is a curable composition that has low modulus, high elongation and low viscosity, and can be used for building sealing materials. This curable composition includes: an organic polymer (A) containing on average at least 1.4 reactive silyl groups per molecule; and an organic polymer (B) containing on average less than one reactive silyl group per molecule, wherein the number average molecular weight of component (B) is lower than the number average molecular weight of component (A) by at least 3,000, and the ratio (y)/(x) of the number of moles (y) of organic polymers containing only one reactive silyl group per molecule among components (A) and (B) to the number of moles (x) of organic polymers containing at least 2 reactive silyl groups per molecule among components (A) and (B) is not more than 5. | 10-24-2013 |
20140046001 | EPOXY SYSTEMS AND AMINE POLYMER SYSTEMS AND METHODS FOR MAKING THE SAME - Compositions and methods for forming surfactants, aqueous dispersions, and curing agents are provided. In one aspect, the invention relates to improved epoxy functional surfactants prepared by reaction of an epoxy composition and an amidoamine composition formed from a blend of acid-terminated polyoxyalkylene polyols. The improved epoxy functional surfactants may be reacted with an excess of epoxy composition and water to result in an aqueous dispersion. The amidoamine composition may be a reaction mixture of a diamine compound and an acid terminated polyoxyalkylene composition formed from two or more polyoxyalkylene polyol compounds. The epoxy functional surfactant may be reacted with amine compounds to form a compound suitable as a curing agent. | 02-13-2014 |
20150322197 | LATENT CATALYTIC CURING AGENT - A curable composition including (a) at least one divinylarene dioxide and (b) at least one latent catalytic curing agent; a process for preparing the curable composition; and a cured composition prepared from the curable composition. | 11-12-2015 |
20160168371 | MATRIX MATERIAL | 06-16-2016 |
525408000 | Mixed with carboxylic acid or derivative or polymer derived therefrom | 20 |
20080207839 | Block Copolyetherester Elastomer and Preparation Thereof - The invention relates to a process for the preparation of a block copolyetherester elastomer comprising polyester hard blocks and poly(alkylene oxide) polyol soft blocks, wherein at least one aromatic dicarboxylic acid or an ester-forming derivative thereof, and at least one alkylene diol, are esterified with a poly(alkylene oxide) polyol, comprising an poly(propylene oxide), end capped with ethylene oxide, are esterified, an ethylene oxide content of between 22 and 90% by weight, relative to the total weight of the poly(alkylene oxide) polyol, and an unsaturation content, being the total content of vinyl and allyl groups, of less than 35 meq per kg poly(alkylene oxide) polyol. The invention also relates to a block copolyetherester elastomer obtainable by said process, comprising an poly(propylene oxide) end capped with ethylene oxide, an Mn of between 2500 and 5000 g/mol; and an ethylene oxide content of between 22 and 90% by weight; and wherein the block copolyetherester elastomer has a ratio by weight of poly(alkylene oxide) polyol/aromatic dicarboxylic acid or the ester-forming derivative thereof of between 60/40 and 90/10; an average degree of polymerization of the polyester block of at least 3.5; and the block copolyetherester elastomer has an Mn of at least 25,000 g/mol. | 08-28-2008 |
20080227927 | VINYL ETHERS AND COMPOSITIONS CONTAINING THEM - Disclosed are vinyl ethers and related compositions. The vinyl ethers are the conjugate addition reaction product of reactants comprising a vinyl ether group-containing acrylic ester and a nucleophile. | 09-18-2008 |
20080312383 | Thermosetting Resin Composition, And Laminate and Circuit Substrate Using Same - A thermosetting resin composition of the present invention includes (A) a polyimide resin, and as thermosetting components, at least one of (B) a multifunctional cynate ester and (C) an epoxy resin. The (A) polyimide resin is soluble polyimide obtained by reacting, with diamines, acid dianhydride including an ether bond. As (B) the multifunctional cynate esters, a compound having a specific structure, and/or an oligomer thereof is used. As (C) the epoxy resin, an epoxy resin having a dicyclopentadiene bone structure and/or an alkoxy-group-including silane denatured epoxy resin (suitable epoxy resin) is preferably used. | 12-18-2008 |
20090023868 | COPOLYMERS COMPRISING POLYAMIDE BLOCKS AND POLYETHER BLOCKS AND HAVING IMPROVED MECHANICAL PROPERTIES - The invention relates to a copolymer comprising polyamide blocks PA alternated with polyether blocks PE, said PA blocks being formed by homopolyamide blocks PA X.Y obtained by polycondensation of: a linear aliphatic diamine having X carbon atoms, and a carboxylic diacid having Y carbon atoms. Said copolymer is characterized in that the crystallinity of block PA is greater than the crystallinity of a PA block of the same size and/or the PA/PE phase separation is greater than that of a PA12/PTMG copolymer with PA12 blocks of the same size as the PAX.Y blocks and PTMG of the same size as the PE blocks. | 01-22-2009 |
20090062479 | Heat-curable polyimide silicone Composition and a cured film therefrom - A heat-curable resin composition, comprising
| 03-05-2009 |
20090247708 | Amino group-terminal viscosifiers, resultant products and uses thereof - The invention relates to compounds embodying amino group-terminal viscosifiers, the resultant products thereof, and the uses thereof. The inventive viscosifiers are provided with formula (I), wherein R | 10-01-2009 |
20090264600 | Method for Preparing Water-Soluble Polymer Derivatives Bearing a Terminal Carboxylic Acid - A method is provided for preparing water-soluble polymer derivatives bearing a terminal carboxylic acid or ester thereof. The method involves the hydrolyzing an ortho ester of a water-soluble polymer so as provide the corresponding acid. In addition, the invention provides water-soluble polymers bearing a terminal carboxylic acid or ester thereof, intermediates and reagents useful in carrying out the method, as well as gels, pharmaceutical formulations, conjugates related to the described water-soluble polymer derivatives. | 10-22-2009 |
20100004403 | High-Molecular Weight Conjugate of Combretastatins - A novel derivative of combretastatins which has water solubility and is capable of releasing the drug independent of biological enzymes likely to cause individual differences and whose effective therapeutic effect can be expected has been demanded. A high-molecular weight conjugate of combretastatins, characterized by having a structure in which a hydroxyl group of a combretastatin is linked via an ester bond to a carboxylic acid group of the polymer moiety in a block copolymer of a polyethylene glycol moiety with the polymer moiety having two or more carboxylic acid groups such as polyaspartic acid or polyglutamic acid is provided. | 01-07-2010 |
20100056730 | SOLVENT-FREE POLYIMIDE SILICONE RESIN COMPOSITION AND CURED PRODUCT THEREOF - A solvent-free polyimide silicone resin composition, and a cured product thereof, includes (A) a polyimide silicone resin having recurring units having a specific type of structure and having a weight average molecular weight of 5,000 to 150,000, (B) an epoxy resin, and (C) an epoxy resin curing agent wherein the resin composition having a fluidity at 25° C. and is free of a solvent. | 03-04-2010 |
20100144977 | CURING AGENTS FOR EPOXY RESINS - A variety of curing agents for epoxy resins and methods for preparation thereof are disclosed, including compounds having the structures of formulas III and IV: | 06-10-2010 |
20100227981 | EPOXIDE-BASED COMPOSITION - An epoxide-based composition comprising a combination of an epoxide and a curing agent, wherein the epoxide is selected from a phenyl glycidyl ether-based polyepoxide and the curing agent is a salt compound composed of a N-alkanol piperidine and a carboxylic acid. | 09-09-2010 |
20100249337 | Epoxi-amine composition modified with hydroxyalkyl urethane - Disclosed is a novel epoxy-amine composition modified a hydroxyalkyl urethane, which is obtained as a result of a reaction between a primary amine (C | 09-30-2010 |
20110046315 | Method for Preparing Conjugates Using Polymer Maleimides - Methods for preparing conjugates using polymeric reagents bearing a maleimide are provided. Also provided are compositions comprising the conjugates. | 02-24-2011 |
20110152468 | EPOXY RESIN CURING COMPOSITIONS AND EPOXY RESIN SYSTEMS INCLUDING SAME - Disclosed are epoxy resins exhibiting a highly favorable combination of tensile strength and elongation with respect to prior art epoxy systems. The elastomeric epoxy resin systems of the invention are prepared utilizing a curing agent containing at least one monoprimary amine, and are particularly useful in applications such as, for example, castings, potting, composites, crack sealing, coatings, adhesives, roofing materials, flooring or reinforced membranes. | 06-23-2011 |
20110251355 | Block and Graft Copolymers of Poly(Alkylene Carbonate) and Various Polymers - Provided is preparation of poly(alkylene carbonate) by alternating copolymerization of carbon dioxide and epoxide. To be specific, provided are a method for preparing block or graft copolymers of the polymer compound and poly(alkylene carbonate) by alternating-copolymerization of an epoxide compound and carbon dioxide by using a metal (III) compound prepared from salen-type ligand with a quaternary ammonium salt as a catalyst in the presence of a polymer compound having a functional group of hydroxyl or carboxylic acid, and block or graft copolymers prepared by the method. | 10-13-2011 |
20110319572 | POLYOLS FROM HPPO AND POLYURETHANE PRODUCTS MADE THEREFROM - Described is a polyol blend for use in the production of polyurethane products. The polyol blend may include between about 50 and about 99 percent by weight of the polyol blend of at least one HPPO polyether polyol compound having a nominal starter functionality between about 2 and about 8 and a hydroxyl number between about 20 and about 800, and between about 1 and about 50 percent by weight of the polyol blend of at least one autocatalytic polyol. | 12-29-2011 |
20120022221 | Use, as a Shock Absorber, of a Material Formed from Branched Molecules Containing Associative Groups - The present invention relates to the use, as a shock absorber, of a material formed from branched molecules comprising associative groups. Said branched molecules are each constituted of fragments that are at least bifunctional and of fragments that are at least trifunctional joined together by ester or thioester bridges, alone or in combination with amide or urea bridges. | 01-26-2012 |
20120041155 | Method of Preparing Carboxylic Acid Functionalized Polymers - Methods for preparing water soluble, non-peptidic polymers carrying carboxyl functional groups, particularly carboxylic acid functionalized poly(ethylene glycol) (PEG) polymers are disclosed, as are the products of these methods. In general, an ester reagent R(C═O)OR′, wherein R′ is a tertiary group and R comprises a functional group X, is reacted with a water soluble, non-peptidic polymer POLY-Y, where Y is a functional group which reacts with X to form a covalent bond, to form a tertiary ester of the polymer, which is then treated with a strong base in aqueous solution, to form a carboxylate salt of the polymer. Typically, this carboxylate salt is then treated with an inorganic acid in aqueous solution, to convert the carboxylate salt to a carboxylic acid, thereby forming a carboxylic acid functionalized polymer. | 02-16-2012 |
20120083577 | Poly(Ethylene Oxide) Functionalization - A simple procedure is provided by which the hydroxyl termini of poly(ethylene oxide) can be appended with functional groups to a useful extent by reaction and precipitation. The polymer is dissolved in warmed toluene, treated with an excess of organic base and somewhat less of an excess of a reactive acylating reagent, reacted for several hours, then precipitated in isopropanol so that the product can be isolated as a solid, and salt byproducts are washed away. This procedure enables functionalization of the polymer while not requiring laborious purification steps such as solvent-solvent extraction or dialysis to remove undesirable side products. | 04-05-2012 |
20120149849 | MULTI-ARMED CATECHOL COMPOUND BLENDS - The invention describes families of compounds that utilize multihydroxyl phenyl groups to provide adhesive properties. Selection of the multihydroxy phenyl group along with linkers or linking groups and the linkages between the linkers or linking groups with polyalkylene oxides, provides materials that can be engineered to afford controllable curing time, biodegradation and/or swelling. | 06-14-2012 |
525409000 | Solid polymer derived only from 1,2-epoxy reactants containing only C, H, and O | 10 |
20090258997 | Novel phosphorus-containing compounds and their preparing process and use - A series of novel phosphorus-containing compounds having the following formula are disclosed: | 10-15-2009 |
20110245431 | LOW DIELECTRIC BROMINATED RESIN WITH A SYMMETRIC OR SATURATED HETEROCYCLIC ALPHATIC MOLECULAR STRUCTURE AND THE PREPARATION THEREOF - The present invention provides a brominated epoxy resin, which has a molecular segment of low polarity in the polymer chain, while the molecular segment of low polarity is attributed to the symmetric or saturated cyclic alphatic molecular structure with low “molecular dipole moment” characteristics; making a printed circuit board for high frequency signal transformation applications needs a proper copper clad laminate which processes the properties of a low dielectric constant and of a low dissipation factor; a copper clad laminate can meet above requirements by using the inventive resin as a laminate binder. The inventive resin is prepared by the following steps:
| 10-06-2011 |
20110263797 | ALLOPHANATE MODIFIED DIPHENYLMETHANE DIISOCYANATES, PREPOLYMERS THEREOF, AND THEIR USE IN THE PREPARATION OF POLYUREAS AND POLYURETHANES - This invention relates to novel allophanate-modified diphenylmethane diisocyanates, prepolymers of these allophanate-modified diphenylmethane diisocyanates, and two-component polyureas and one-component polyureaurethanes prepared from these prepolymers. In addition, the invention also relates to processes for the preparation of these various compositions, and to the preparation of sealants from the two-component polyureas and caulking agents from the one-component polyureaurethanes. | 10-27-2011 |
20120059130 | CURABLE COMPOSITIONS CONSISTING OF SILANES WITH THREE HYDROLYSABLE GROUPS - The invention relates to silane cross-linking curable compositions, comprising a polymer P with at least two terminal groups of the following formulae (I) and (II) -A | 03-08-2012 |
20130245204 | NOVEL AGENTS FOR REWORKABLE EPOXY RESINS - Compounds of formula I, uses as crosslinking agents or curing agents thereof, and resins obtained by using the compounds as crosslinking agents. | 09-19-2013 |
20130274421 | HIGHLY PURE POLOXAMERS AND PURIFICATION METHOD THEREOF - Disclosed are a method for purifying poloxamers, comprising dissolving poloxamers in an organic solvent to prepare a polymer solution, and removing organometals or water from the polymer solution by at least one physical method selected from mixing of activated carbon with the polymer solution and centrifugation of the polymer solution, and poloxamers purified by the method. | 10-17-2013 |
20130281633 | POLYMER COMPOSITIONS AND METHODS - The present disclosure describes polymer compositions comprising aliphatic polycarbonate chains containing epoxy functional groups. In certain embodiments, the aliphatic polycarbonate chains comprise epoxy functional groups capable of participating in epoxide ring-opening reactions. In certain embodiments, the invention encompasses composites formed by the reaction of nucleophilic reagents and epoxide functional groups, wherein the epoxide functional groups are located on aliphatic polycarbonate chains. | 10-24-2013 |
20140039133 | CURABLE COMPOSITION AND METHODS FOR IMPROVING RECOVERY PROPERTIES AND CREEP PROPERTIES - Disclosed are a curable composition characterized by using a curable composition including an organic polymer (A1) having one or more silicon-containing functional groups capable of cross-linking by forming siloxane bonds in which the one or more silicon-containing functional groups capable of cross-linking by forming siloxane bonds are silicon-containing functional groups each having three or more hydrolyzable groups on one or more silicon atoms thereof; and a method for controlling the recovery properties, durability and creep resistance of the cured article. Herewith, the present invention provides a curable composition capable of giving a cured article excellent in recovery properties, durability and creep resistance, and a method for controlling the recovery properties, durability and creep resistance of the cured article. | 02-06-2014 |
20140296447 | Epoxy Resins With High Thermal Stability and Toughness - Epoxy resin compositions contain (i) a potyepoxide resin; (ii) a benzofuran diol component, a benzofuran di-epoxide component, or a mixture thereof; and (iii) a curing agent, which upon curing, provides a cured resin exhibiting improved chemical and physical characteristics. The epoxy resin composition may also contain a toughening agent to further enhance the cured resin's physical characteristics. | 10-02-2014 |
20140378622 | PHOSPHORUS-CONTAINING PHENOLIC RESIN, METHOD FOR MANUFACTURING THE SAME, AND USE OF THE SAME - The present invention provides a novel phosphorus-containing phenolic resin. When the phosphorus-containing phenolic resin is used as an epoxy resin curing agent, the cured product thereof has various excellent properties such as excellent moisture resistance, low permittivity, a low dissipation factor, and excellent adhesion in addition to improved flame retardation. Specifically, the phosphorus-containing phenolic resin of the invention is represented by formula (1). The invention also provides a method for manufacturing the novel phosphorus-containing phenolic resin, a phenolic resin composition including the phosphorus-containing phenolic resin, an epoxy resin curing agent including the phenolic resin composition, an epoxy resin composition including the epoxy resin curing agent and an epoxy resin, a cured product obtained by curing the epoxy resin composition, and a copper-clad laminated plate obtained by using the epoxy resin composition as a matrix resin. | 12-25-2014 |