| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 525534000 | Solid polymer derived from phenolic reactant | 27 |
| 20090131609 | Episulfide Group-Substituted Silicon Compound and Thermosetting Resin Composition Containing Same - Disclosed is an episulfide group-substituted silicon compound (A) having a backbone structure represented by the following formula (1). | 05-21-2009 |
| 20090137752 | Process for preparing polyether alcohols with DMC catalysts using specific additives with aromatic hydroxyl functionalization - Process for preparing polyether alcohols by polymerization by means of double metal cyanide catalysts (DMC catalysts), characterized in that, before or during the polymerization, one or more, optionally mixed additives consisting of compounds having one or more aromatic structures which may be monosubstituted or else polysubstituted and which have at least one hydroxyl group on the aromatic system are added to the reaction mixture. | 05-28-2009 |
| 20090270565 | Fuel Cell Separator Material and Process of Producing the Same - A fuel cell separator material which exhibits a high fracture strain and a high strength, prevents breakage during cell stack assembly or cracking during a cell operation, and exhibits excellent properties such as conductivity and gas impermeability, and a method of producing the same are provided. The fuel cell separator material includes a carbon/cured resin molded product in which a carbon powder is bound with a binder which comprises a mixed resin of a bifunctional aliphatic alcohol ether-type epoxy resin and a polyfunctional phenol-type epoxy resin, a phenol resin curing agent, and a curing accelerator as essential components. The method of producing a fuel cell separator material includes preparing a resin solution by dissolving a bifunctional aliphatic alcohol ether-type epoxy resin, a polyfunctional phenol-type epoxy resin, a phenol resin curing agent, and a curing accelerator in an organic solvent, mixing a carbon powder with the resin solution, removing the organic solvent by volatilization, grinding the mixture to obtain a molding powder, filling a preforming mold with the molding powder, providing an upper mold, preforming the molding powder at a pressure of 1 to 10 MPa to obtain a preform, inserting the preform into a mold, and thermocompression-molding the preform at a pressure of 20 to 50 MPa and a temperature of 150 to 250° C. | 10-29-2009 |
| 20090318636 | Epoxy resins adducted with reactive liquid rubber having improved low temperature performance properties - A blend of epoxy resins includes a) an epoxy resin composition derived from the reaction of a liquid epoxy resin, a carboxyl terminated butadiene (CTB), and a carboxyl terminated polybutadiene-acrylonitrile (CTBN) and/or a random and terminal carboxyl functional polybutadiene-acrylonitrile (CTBNX), and b) unreacted epoxy resin. The carboxyl terminated butadiene is miscible with the unreacted epoxy resin and does not separate therefrom even upon aging. Upon cure as with a latent cure agent, a toughened epoxy resin is produced having unexpected good low temperature properties such as peel strength. | 12-24-2009 |
| 20100029864 | POLYARYLETHER COMPOSITION AND MEMBRANE - A composition including a polyarylether copolymer is provided. The copolymer includes a polyarylether backbone; and a sulfonated oligomeric group bonded to the polyarylether suitable for use as a cation conducting membrane. Method of bonding a sulfonated oligomeric group to the polyarylether backbone to form a polyarylether copolymer. The membrane may be formed from the polyarylether copolymer composition. The chain length of the sulfonated oligomeric group may be controlled to affect or control the ion conductivity of the membrane. | 02-04-2010 |
| 20100041837 | POLYARYLETHERS, BLENDS AND METHODS FOR MAKING - A method for making a polyarylether having amide functionality includes reacting a dihydroxyaromatic compound having amide functionality with a dihaloaromatic sulfone or dinitroaromatic sulfone in the presence of a base. Polyarylethers having amide functionality and blends are also provided. | 02-18-2010 |
| 20100041838 | POLYARYLETHERS, BLENDS AND METHODS FOR MAKING - A method for making a polyarylether block copolymer having amide functionality including reacting a dihydroxyaromatic compound having amide functionality and a dihaloaromatic sulfone or dinitroaromatic sulfone in the presence of a base to form a polyarylether having amide functionality and reacting the polyarylether having amide functionality with a polymer. The block copolymer and blends are also provided. | 02-18-2010 |
| 20100168346 | Sulfonated Poly (Arylene Ether) Containing Crosslinkable Moiety at End Group, Method of Manufacturing the Same, and Polymer Electrolyte Membrane Using the Sulfonated Poly (Arylene Ether) and the Method - A sulfonated polyUrylene ether) copolymer, a method of preparing the same, and a polymer electrolyte membrane using the sulfonated poly(arylene ether) copolymer are provided. A sulfonated poly(arylene ether) copolymer containing a sulfonic acid is synthesized by poly condensing a dihydroxy monomer having a sulfonate group with a dihalide monomer, or by polycondensing a dihalide monomer having a sulfonate group with a dihydroxy monomer. Moreover, a crosslinkable dihydroxy monomer or a crosslinkable dihalide monomer is polycondensed with the obtained poly(arylene ether) copolymer, thus enable crosslinking between polymers. A polymer electrolyte membrane for a fuel cell formed using a poly(arylene ether) copolymer containing a crosslinkable moiety maintains the equivalent or superior levels to existing sulfonated poly(arylene ether) polymer or the Nafion membrane commercially available at present in terms of thermal stability, mechanical stability, chemical properties, film formability, and the like, and shows considerably improved proton conductivity and cell performances. | 07-01-2010 |
| 20110152470 | MODIFIED POLYCARBONATES HAVING IMPROVED SURFACE PROPERTIES - The present invention relates to polycarbonates comprising imide-containing aryl mono- or dihydroxy compounds as chain terminators and, respectively, monomer units, and also to compositions comprising the said polycarbonates, to their use for the production of mouldings, and to mouldings obtainable therefrom. | 06-23-2011 |
| 20120083579 | METHOD FOR PRODUCING POLY(ARYLENE ETHER) BLOCK COPOLYMERS - The present invention relates to a process for the production of polyarylene ether block copolymers comprising, in a first stage, the reaction of at least one aromatic dihydroxy compound comprising 4,4′-dihydroxybiphenyl in a molar excess and of at least one aromatic dihalogen compound, to form a polybiphenyl sulfone polymer, and then, in a second stage, the reaction of the polybiphenyl sulfone polymer with at least one aromatic dihydroxy compound and of at least one aromatic dihalogen compound. | 04-05-2012 |
| 20120149853 | NOVEL METHOD FOR PRODUCING POLYPHENYLENE ETHER - Method for producing polyphenylene ether, comprising preparing a polymerization solution of 10-25 parts by mass of a phenolic compound (M) and 75-90 parts by mass of an aromatic solvent (A) with the total of the compound and the solvent being 100 parts by mass, and 0.1-10 parts by mass of a catalyst (C) containing a metal salt; performing oxidative polymerization of the phenolic compound (M) by passing oxygen-containing gas through polymerization solution; stopping polymerization by mixing aqueous chelating agent solution into polymerization solution; subjecting a diphenoquinone compound produced as a by-product to quinone binding process or removal by reduction; and obtaining polyphenylene ether by separating aqueous phase through liquid-liquid separation. In the method for producing a polyphenylene ether, 0.001-0.004 part by weight of an ion catalyst (D) is added into the polymerization solution before the liquid-liquid separation. | 06-14-2012 |
| 20120172547 | Cross-linked Polyphosphonate, Method of Preparing the Same, and Flame Retardant Thermoplastic Resin Composition Including the Same - A cross-linked polyphosphonate and a thermoplastic resin composition including the cross-linked polyphosphonate are disclosed. The composition may have excellent flame retardancy and mechanical strength and superior appearance and heat resistance. | 07-05-2012 |
| 20130035457 | PROCESS FOR PREPARING A BLOCK COPOLYMER - The present invention relates to a process for preparing a block copolymer comprising poly-arylene ether and polyalkylene oxide blocks, comprising the reaction of an HO-terminated poly-arylene ether with a monomeric alkylene oxide. | 02-07-2013 |
| 20130102740 | SULFONATED POLY(ARYLENE ETHER) COPOLYMER HAVING A CROSS-LINKABLE STRUCTURE, AND POLYELECTROLYTE MEMBRANE COMPRISING SAME - Provided are a sulfonated poly(arylene ether) copolymer including a crosslinking structure and a polyelectrolyte membrane including the same. Particularly, a sulfonated poly(arylene ether) copolymer including a crosslinking structure in a polymer chain or at the terminal portion of the polymer chain, and a polyelectrolyte membrane including the same are provided. The polyelectrolyte membrane using the sulfonated poly(arylene ether) copolymer including the crosslinking structure, may have the same or better degree of a thermal stability, a mechanical stability, a chemical stability, a membrane forming capability, etc. than a commonly used polyelectrolyte membrane. In addition, the proton conductivity and the cell performance of the polyelectrolyte membrane may be remarkably improved than those of the commonly used polymer electrolyte. Further, the properties of the electrolyte membrane may be rarely changed, and a high measuring stability may be obtainable. The polyelectrolyte membrane may be used in a fuel cell or a secondary battery. | 04-25-2013 |
| 20140194581 | POLYMER, A METHOD OF PREPARING THE SAME, COMPOSITE PREPARED FROM THE POLYMER, AND ELECTRODE AND COMPOSITE MEMBRANE EACH INCLUDING THE POLYMER OR THE COMPOSITE - A polymer comprising a first repeating unit represented by Formula 1: | 07-10-2014 |
| 20140243487 | PROCESS FOR CROSSLINKING A POLYMER COMPRISING PYRIDYL GROUPS - The present invention relates to process for crosslinking an arylene oxide polymer comprising a 3-pyridyl and/or a 4-pyridyl group, wherein the polymer is reacted with a compound according to Formula (1) or a compound according to Formula (2), wherein R | 08-28-2014 |
| 20140336341 | Curable Compositions AllowingTo Obtain Materials Having An Optimised Performance, And Materials Obtained From Said Compositions - A curable composition, and a material obtained by curing the composition, in which the curable composition includes a vinylester polymerisable compound, jointly with a sulphonated polyaromatic thermoplastic polymer, and an N-vinyl lactam, and which is characterised in that it further includes, a first non-vinylester polymerisable compound which includes at least one isocyanurate group bearing at least two (meth)acrylate groups; and a second non-vinylester polymerisable compound which includes at least one carbopolycyclic or heteropolycyclic group bearing at least two (meth)acrylate groups. | 11-13-2014 |
| 20150038654 | EMULSIFIER FOR EMULSION POLYMERIZATION AND EMULSION POLYMERIZATION METHOD USING SAME - An emulsifier for emulsion polymerization includes a compound represented by the following general: | 02-05-2015 |
| 20150057416 | ORGANOSILOXANE-MODIFIED NOVOLAK RESIN AND MAKING METHOD - An organosiloxane-modified novolak resin comprising structural units having formula (1) wherein R | 02-26-2015 |
| 20150080537 | Method for Preparing Polyethersulfone - A method for preparing a polyethersulfone includes oxidation of a poly arylene ether sulfone-sulfide compound including a repeat unit represented by Formula 1 with an aqueous solution of an organic acid and an aqueous solution of hydrogen peroxide. In the method, the overall process is carried out under mild conditions of about 190° C. or less, thereby enabling economic preparation of a polyethersulfone without complicated post-treatment, such as separation of by-products formed from a basic compound, and the like. | 03-19-2015 |
| 20150112031 | PROCESS FOR PREPARING A BLOCK COPOLYMER - The present invention relates to a process for preparing a block copolymer comprising polyarylene ether and polyalkylene oxide blocks, comprising the reaction of an HO-terminated polyarylene ether with a monomeric alkylene oxide. The present invention also relates to a block copolymer obtainable from this process. The invention additionally relates to a triblock polymer with polyalkylene oxide-polyaryl ether-polyalkylene oxide blocks. | 04-23-2015 |
| 20150376342 | HYDROPHILIC BLOCK COPOLYMERS AND METHOD OF PREPARATION THEREOF (III) - Disclosed are block copolymers suitable for preparing hydrophilic porous membranes, wherein the block copolymers are of the formula: A-B-A (I) and A-B (II), wherein block A is (i) a copolymer of glycidol and allyl glycidyl ether, the copolymer having one or more allyl groups; or (ii) a copolymer of glycidol and allyl glycidyl ether, wherein one or more of the allyl groups of the copolymer have been replaced with 1,2-dihydroxypropyl group or a group of the formula: —(CH | 12-31-2015 |
| 20160108231 | PROCESS FOR STABILIZING PHENOLIC RESINS CONTAINING CALIXARENES - This invention relates to a process for stabilizing a phenolic resin containing a mixture of linear phenolic resins and calixarenes and a demulsifier composition comprising the stabilized phenolic resins prepared from the process. The process comprises contacting the phenolic resin with an alkylene carbonate, in the presence of a base catalyst, to at least partially alkoxylate the phenolic hydroxyl groups of the calixarenes. This process forms a stabilized phenolic resin with an increased solubility in a hydrocarbon solvent. | 04-21-2016 |
| 20160108238 | MOLDING METHOD AND MOLDED ARTICLE - Polyether sulfone having a melt viscosity of 65 to 75 Pa·s at a resin temperature of 380° C. and shear velocity of 10000 s | 04-21-2016 |
| 20160130395 | Stabilized Poly(Arylene Ether) Compositions and Methods of Making Them - Disclosed herein is a method to stabilize a poly(arylene ether) comprising combining a neat or diluted poly(arylene ether) with a vinyl or vinylidene-terminated polyolefin at a temperature of at least 80° C. to form heated reaction components; combining a Brφnsted acid or Lewis acid with the heated reaction components; and isolating a polyolefin-poly(arylene ether) copolymer composition. | 05-12-2016 |
| 20160200874 | POLYARYLENE SULFIDE RESIN AND MANUFACTURING METHOD THEREFOR, POLY(ARYLENE SULFONIUM SALT) AND MANUFACTURING METHOD THEREFOR, AND SULFOXIDE | 07-14-2016 |
| 20160251473 | PHENOLIC RESIN COMPOSITION, EPOXY RESIN COMPOSITION, AND CURED EPOXY RESIN | 09-01-2016 |
