| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 528171000 | Sulfur reactant contains sulfur directly bonded to oxygen | 32 |
| 20090043068 | ORGANIC SUPERACIDS, POLYMERS, DERIVED FROM ORGANIC SUPERACIDS, AND METHODS OF MAKING AND USING THE SAME - One embodiment of the invention contemplates a proton exchange membrane for use in a variety of fuel cells. The proton exchange membrane may comprise a solid phase organic based copolymer material in which a first structural unit is derived from a polymerizable organic super acid. The organic super acid may comprise an acid group such as a sulfonic acid group or a carboxylic acid group. | 02-12-2009 |
| 20090247724 | POLY(ARYLENE ETHER) COPOLYMER - A poly(arylene ether) copolymer is the product of oxidative copolymerization of monomers including a monohydric phenol and a dihydric phenol. It has an intrinsic viscosity of about 0.04 to about 0.15 deciliter per gram and, on average, about 1.8 to about 2 hydroxyl groups per molecule. The poly(arylene ether) copolymer is enriched in low molecular weight copolymer chains and copolymer chains that include a terminal unit derived from the dihydric phenol. | 10-01-2009 |
| 20160159990 | DIVISION OF A POLYARYLENE ETHER SOLUTION - The invention relates to a process for producing polyarylene ether beads from a polyarylene ether solution, comprising the steps of
| 06-09-2016 |
| 528172000 | Nitrogen-containing compound is a reactant other than wherein nitrogen is solely present as a carboxylic acid derivative | 6 |
| 20080242827 | Method for producing omni-meta aromatic polysulfonamide fiber - The invention relates to a method of preparing omni-meta aromatic polysulfonamide fiber which comprises three steps of preparing spinning dope, wet spinning and post treating. The said step of preparing spinning dope comprises the following steps: (1) dissolving 3,3′-diaminodiphenyl sulphone in a polar organic solvent and cooling it to −20˜20° C.; (2) adding m-phthaloyl chloride of the same mole of the 3,3′-diaminodiphenyl sulphone to carry out a polymerization reaction; (3) then adding an inorganic base of the same mole of 3,3′-diaminodiphenyl sulphone to neutralize the hydrogen chloride produced during the polymerization reaction. The spinning dope thus prepared has a polymer solid content of 10%-20%. The fiber prepared according to the method in the present invention has a greatly improved crimpability, and evidently increased elongation at break comparing with the conventional aromatic polysulfonamide fiber, so that the spinnability of resultant yarn is improved. | 10-02-2008 |
| 20100029891 | THERMOSETTING COMPOSITION - A thermosetting composition comprising (a) 97.9 to 40 percent by weight of at least one bis(dihydrobenzoxazine) prepared by the reaction of an unsubstituted or substituted bisphenol with at least one unsubstituted position ortho to each hydroxyl group, formaldehyde and a primary amine; (b) 2 to 50 percent by weight of at least one organic polyamine; and (c) 0.1 to 10 percent by weight of at least one curing catalyst, selected from the group of carboxylic acids, sulfonic acids and phosphonic acids having at least two acid groups and no other reactive groups; wherein the percent by weight refer to the total amount of components (a), (b) and (c) in the composition, with the proviso that (a), (b) and (c) add up to 100 percent by weight; and (d) and optionally other components. Cured products of these compositions show valuable chemical, physical and mechanical properties. | 02-04-2010 |
| 20120130042 | POLYETHERSULFONE COMPOSITIONS WITH HIGH HEAT AND GOOD IMPACT RESISTANCE - Polyethersulfones having Tg greater than about 225° C. and a notched Izod value greater than about 1 ft-lb/in, as measured by ASTM D256, comprise from about 5 mol % to less than about 40 mol % structural units of formula 1; and | 05-24-2012 |
| 20120130043 | POLYETHERSULFONE COMPOSITIONS WITH HIGH HEAT AND GOOD IMPACT RESISTANCE - Polyethersulfones having Tg greater than about 225° C. and a notched Izod value greater than about 1 ft-lb/in, as measured by ASTM D256, comprise from about 5 mol % to less than about 40 mol % structural units of formula 1; and | 05-24-2012 |
| 20120277397 | ANILINE COPOLYMERS AND METHODS FOR THEIR PREPARATION AND USE - Aniline copolymers and methods of making these copolymers are disclosed herein. The copolymers can, for example, be used for removing metal ions from a sample. | 11-01-2012 |
| 20130184428 | SULPHUR-CONTAINING TRIAZINE MONOMER THAT CAN BE USED FOR THE SYNTHESIS OF A POLYMER MEMBRANE FOR A FUEL CELL - A sulphur-containing triazine monomer is provided that can be used in the synthesis of a polymer membrane for a PEM-type fuel cell. The sulphur-containing triazine monomer has a structure corresponding to a formula (I): | 07-18-2013 |
| 528173000 | Carboxylic acid or derivative is a reactant | 8 |
| 20090036633 | POLYCARBONATE WITH HIGH REFRACTIVE INDEX - An aromatic polycarbonate having a high refractive index and good processing and mechanical properties is provided. The aromatic polycarbonate comprises a thiodiphenol monomer and a biphenyl monomer. The refractive index of the polycarbonate may be greater than 1.670. | 02-05-2009 |
| 20090043069 | ACTIVATED ESTERS FOR SYNTHESIS OF SULFONATED TELECHELIC POLYCARBONATES - A process of making a sulfonated telechelic polycarbonate is described. A dihydroxy compound, a carbonate ester, and an activated ester of a sulfobenzoic acid salt are reacted together. The method results in a sulfonated telechelic polycarbonate which has a high percentage of sulfonated end groups, is soluble, and is transparent. | 02-12-2009 |
| 20100041853 | POLYARYLETHER MEMBRANES - A membrane including a polyarylether having amide functionality. The polyarylether having amide functionality includes units from at least one of structure I or structure II: | 02-18-2010 |
| 20110301320 | METHOD OF PURIFYING A POLYMER - A method for purifying a polymer comprising providing a first mixture comprising at least one solvent and at least one polymeric material, diluting the first mixture with veratrole to produce a second mixture in which the polymeric material is substantially dissolved at a temperature less than 100° C., performing at least one step selected from (i) contacting the second mixture with an aqueous wash solution, and (ii) filtering the second mixture. | 12-08-2011 |
| 20130041125 | AMORPHOUS POLYESTER RESIN, BINDER RESIN FOR TONER FOR ELECTROSTATIC IMAGE DEVELOPMENT AND AMORPHOUS POLYESTER RESIN PRODUCTION METHOD - The invention provides an amorphous polyester resin that can sufficiently achieve the reciprocal performance properties of hot offset resistance and cold offset resistance, which is a major issue for a toner for electrostatic image development, while allowing adequate blocking resistance to be obtained, as well as a binder resin for toner for electrostatic image development, and an amorphous polyester resin production method, the amorphous polyester resin being obtained by reaction between a polybasic carboxylic acid compound and a polyhydric alcohol, wherein the polybasic carboxylic acid compound comprises (a) the reaction product between an aromatic polybasic carboxylic acid compound and a C2-4 glycol at 60 mol % or greater based on the total amount of the polybasic carboxylic acid compound, and the amorphous polyester resin has a glass transition point of 55° C. to 75° C. and a weight-average molecular weight of 10,000 to 50,000. | 02-14-2013 |
| 20130053530 | METHOD FOR PREPARING A POLY(ETHER SULFONIMIDE OR -AMIDE) COPOLYMER USING CYCLIC OLIGOMERS - Disclosed is a method for preparing a poly(ethersulfonimide or ethersulfonamide) copolymer using cyclic oligomers, and more particularly, to a method for preparing a poly(ethersulfonimide or ethersulfonamide) copolymer by preparing a cyclic ether sulfone oligomer and a cyclic imide or amide oligomer and subjecting the cyclic ether sulfone oligomer and the cyclic imide or amide oligomer to ring-opening copolymerization in the presence of an alkali metal fluoride catalyst. | 02-28-2013 |
| 20130338332 | SULFONATED AROMATIC POLYESTERS - The invention is directed to sulfonated aromatic polyesters and methods of making said polymers. These polymers are useful as fibers and other articles. The polymer has a property of increased flame retardancy. | 12-19-2013 |
| 20150376329 | NOVEL POLYESTER-BASED POLYMER HAVING SUPERIOR TRANSPARENCY AND HIGH HEAT RESISTANCE AND PREPARATION OF THE SAME - Provided is a novel aromatic polyester-based polymer. The aromatic polyester-based polymer includes the repeating unit represented by the following Chemical Formula I and contains at least one aromatic diol monomer. The aromatic polyester-based polymer has a high glass transition temperature and excellent heat resistance, mechanical properties and transparency, as well as shows excellent formability and processability into films or the like, and thus solves the problems occurring in the conventional crystalline or amorphous engineering plastic materials. In addition, the aromatic polyester-based polymer may be applied to next-generation engineering plastic composite materials, such as matrix resins of composite materials for cars and airplanes. The aromatic polyester-based polymer may also he applied to flexible substrates for next-generation flexible displays, solar cells or electronic paper requiring transparency and high heal resistance at the same time. | 12-31-2015 |
| 528174000 | Halogen-containing material is a reactant | 15 |
| 20090163692 | AROMATIC POLYETHERS - An aromatic polyether comprising structural units derived from a halosulfone sulfonate having structure (I): | 06-25-2009 |
| 20090259013 | LIQUID CRYSTAL POLY(PHENYLENE DISULFONIC ACIDS) - A rigid, rod liquid crystal polymer includes a poly(phenylene disulfonic acid). | 10-15-2009 |
| 20120208977 | METHOD FOR PREPARING TERPOLYMER OF POLY (DIPHENYL ETHER SULFONE) AND POLY (DIPHENYL SULFONE) - A method for preparing series of terpolymer of poly (diphenyl ether sulfone) and poly (diphenyl ether diphenyl sulfone) comprises: adding high temperature organic solvent, stirring and heating; sequentially adding 4,4′-dihydroxydiphenyl, 4,4′-dichlorodiphenyl sulfone and 4,4′-Bis(4-chlorophenyl)sulfonyl-1,1′-biphenyl; after all the monomers are completely dissolved, heating to 100° C. and adding alkali metal carbonate salt-forming agent which is 5-10 mol % more than the amount of 4,4′-dihydroxydiphenyl added, and subsequently adding xylene; continuously heating and salt-forming reaction begins in the system, and controlling the temperature at 190˜210° C.; then heating to 230˜236° C., and maintaining for 3-4 hours to obtain polymer viscous liquid; and refining the polymer viscous liquid to obtain a terpolymer containing different structural units in the molecular chain, wherein the Tg of the terpolymer can be regulated by changing the ratio of the two dichloro-containing monomers. | 08-16-2012 |
| 20130109831 | POLY(ARYL ETHER SULFONE) COMPOSITION, AND METHOD OF MAKING | 05-02-2013 |
| 20130245223 | HIGH HEAT POLYETHERSULFONE COMPOSITIONS - High heat polyethersulfone compositions are provided which possess unexpectedly high glass transition temperatures. The polyethersulfone compositions comprise structural units derived from fluorenone bisphenols such as 9,9-bis(4-hydroxyphenyl)fluorene, and structural units derived from at least one biphenyl-bissulfone such as 4,4′-bis((4-chlorophenyl)sulfonyl)-1,1′-biphenyl. The novel polyethersulfone compositions may further comprise structural units derived from one or more biphenols such as 4,4′-biphenol, bisphenols such as BPA, or other electrophilic sulfone monomers, such as bis(4-chlorophenyl)sulfone. In one embodiment, the polyethersulfone composition of the present invention comprises structural groups derived exclusively from 9,9-bis(4-hydroxyphenyl)fluorene and 4,4′-bis((4-chlorophenyl)sulfonyl)-1,1′-biphenyl and exhibits a single glass transition of greater than 300° C. | 09-19-2013 |
| 20140221596 | PROCESS FOR PREPARING POLYSULFONE - The present invention relates to a process for preparing polysulfone, comprising reacting bisphenol monomers with a salt forming agent to form bisphenolate, followed by subjecting the bisphenolate and 4,4′-dihalodiphenyl sulfone to polycondensation to give polysulfone, characterized in that the reaction for forming bisphenolate and the polycondensation are performed in the presence of a composite ionic liquid as the solvent, the composite ionic liquid containing zwitterionic liquid of formula (I) and/or (II) as component A and ionic liquid of formula (III) and/or (IV) as component B, wherein variables are respectively defined in the description of the present invention. The process of the present invention enables a shortened preparation period of polysulfone, particularly a shortened reaction time (including the time of water removal) of the salt forming stage; in addition, the polysulfone thus prepared has an improved molecular weight which is much higher. | 08-07-2014 |
| 20140350207 | POLY(ARYL ETHER SULFONE) COMPOSITION AND METHOD OF MAKING - A poly(aryl ether sulfone) comprises units of formula (I): | 11-27-2014 |
| 20150065677 | PROCESS FOR PRODUCING AROMATIC POLYETHER SULFONES - The process for producing aromatic polyether sulfones via reaction of a dichlorodiphenyl sulfone component with a bisphenol component as monomers in the presence of alkali metal carbonate in the melt in the absence of solvents and diluents comprises carrying out the reaction in a mixing kneader which is operated with a shear rate in the range from 5 to 500 s | 03-05-2015 |
| 20150344610 | POLY(ETHER KETONE) POLYMERS COMPRISING CYCLOALIPHATIC UNITS - A poly(ether ketone) polymer comprising recurring units derived from the reaction of at least one aromatic dihalo compound comprising at least one —C(O)— group and at least one diol having a general formula HO-D | 12-03-2015 |
| 20160075833 | POLYARYLETHERSULFONE COPOLYMERS - The present invention relates to a method for preparing polyarylethersulfone-polyalkylene oxide block copolymers (PPC) comprising the polycondensation of a reaction mixture (R | 03-17-2016 |
| 20160083523 | Polyarylene ether sulfone (PAES) compositions - A poly(arylether sulfone) polymeric material comprising polymer molecules wherein more than 50% moles of the recurring units of said polymer molecules are recurring units (Rt), equal to or different from each other, complying with formula (S | 03-24-2016 |
| 20160152776 | POLYARYLETHER SULFONE POLYMERS (P) WITH A REDUCED SOLVENT CONTENT | 06-02-2016 |
| 528175000 | Reactant contains a (O=)S(=O)-halo group | 3 |
| 20140187737 | Process for the Treatment of a Recycling Stream from a Plant for the Production of Polyarylene Ether Sulfones - A process is proposed for the treatment of a recycling stream ( | 07-03-2014 |
| 20150031849 | POLYMER OF SULFONATED POLY(ARYLENE ETHER)S AND MANUFACTURING METHOD THEREOF - A polymer of sulfonated poly(arylene ether)s (PAEs) and a manufacturing method thereof are provided. A main structure of the PAEs has a first side formed by multi-phenyl glycol monomer and a second side formed by multi-phenyl dihalo monomer with an electron-withdrawing group. The glycol monomer and the dihalo monomer are reacted with each other by a nucleophilic displacement reaction, so as to form the main structure of the PAEs. A film made of the PAEs has a better size stability under a high water uptake. | 01-29-2015 |
| 20150126701 | METHOD FOR THE PRODUCTION OF POLYSULFONES, AND POLYSULFONES - The present invention relates to an improved method for the production of polysulfones, in particular for the production of polyether sulfones (PESU) and polyphenylene sulfones (PPSU), the solvent being N-methylpyrrolidone (NMP) or/and N-ethylpyrrolidone (NEP). | 05-07-2015 |
