Patents
Patents for C08G 75 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur, with or without nitrogen, oxygen, or carbon (8,606)
10/1991
10/01/1991CA1289707C Poly(arylene thioether-ketone) fibers and production process thereof
09/1991
09/25/1991EP0448194A2 Process for production of polyarylenesulfides
09/25/1991EP0448148A2 Polymers with improved heat resistance and method of making same
09/24/1991US5051495 Reaction of dialcohol, dithiols with aromatic halogen compounds
09/24/1991CA1289312C Composite semipermeable membrane
09/19/1991DE4007861A1 New co-polyarylene sulphide polymers - incorporate hydantoin-contg. comonomers or oligo-hydantoin blocks
09/18/1991EP0447358A2 Soluble polyarylene ether sulfones
09/18/1991EP0446947A2 Gas separating asymmetric membrane
09/17/1991WO1991013929A1 Noncrystalline polymers and production thereof
09/17/1991US5049642 Polyethers, polythioethers
09/17/1991US5049169 Oxygen, nitrogen selectivity
09/13/1991CA2037882A1 Soluble polyarylene ether sulfones
09/12/1991DE4007383A1 Hydraulic micro:filtration membrane of polysulphone prepn. - by casting film from soln. of polysulphone contg. polyvinyl-pyrrolidone then crosslinking latter in alkali bath
09/11/1991EP0446057A2 Process for preparation of increased molecular weight polyarylene sulfides
09/11/1991EP0445409A2 Aromatic polyethers containing ester groups
09/10/1991US5047576 Polymerizable vinyl compound having polythioether skeleton
09/10/1991US5047496 Process for the preparation of aromatic polyethersulphones
09/10/1991US5047486 Integrated process for the preparation of polycarbonate and/or polyarylate block copolymers with poly(aryl ethers)
09/04/1991EP0392008A4 Copolymers containing polybenzoxazole, polybenzothiazole and polybenzimidazole moieties
09/03/1991US5045630 Poly(arylene thioether-ketones) improved in melt stability and preparation process thereof
09/03/1991US5045629 Method to recover particulate poly(arylene) sulfides with vaporized separation agent
09/03/1991US5045628 Production and recovery of poly(arylene sulfide ketone) and poly(arylene sulfide diketone) resins
08/1991
08/28/1991EP0443509A2 Process for preparing poly(arylene sulfide sulfone)
08/21/1991CA2031169A1 Process for preparing poly (arylene sulfide sulfone)
08/20/1991US5041532 Degassing, Reduced Bubble Content
08/20/1991US5041522 Dihydroxy-pendant rigid-rod benzobisazole polymer
08/13/1991US5039788 Melt stable phenylene sulfide/sulfone polymers and method
08/13/1991US5039778 Dihydroxy-pendant rigid-rod benzobisazole copolymer
08/13/1991US5039572 High strength thermoplastic resin/carbon fiber composites and methods
08/08/1991WO1991013472A1 Solid polymer electrolytes
08/08/1991WO1991011175A1 Process for the preparation of azo- and/or disulfide-containing polymers
08/07/1991EP0440106A2 Process for preparing polyarylene thioethers
08/07/1991CN1053618A Improved solubility conductive polymers
08/06/1991US5037954 Vapor phase separation of polar organic compound by using water or steam as separating agent
08/06/1991US5037953 Dehydrating mixture of alkali metal sulfide, polar aprotic solvent, sodium salt of aromatic acid, reacting with p-dihalobenzene
08/06/1991US5037952 Process for the production of high molecular weight, optionally branched polyarylene sulfides
08/06/1991US5037951 Heating difluorobiphenyl with alkali metal sulfide
07/1991
07/30/1991US5036146 Polyethersulfone blocks, molding materials, solvent and stress cracking resistance
07/25/1991DE4001239A1 Polycondensates with macrocyclic gps. in the main chain - by polycondensation of di:hydroxy cpds. with di:chloro-phthalocyanine(s) contg. central silicon atom.
07/23/1991US5034506 Uncharged morpholino-based polymers having achiral intersubunit linkages
07/23/1991US5034490 Curable norbornenyl functional silicone formulations
07/23/1991US5034134 Purification of ethylene glycol-water streams by passing through a membrane
07/17/1991EP0437374A2 Optical molding resin composition
07/17/1991EP0436571A1 Copoly(phenylene sulfide)
07/16/1991US5032674 Polythioethers
07/16/1991US5032672 Dihalobenzene and alkali metal sulfide with polar solvent
07/16/1991US5032668 Thermosetting polyimide prepolymers
07/10/1991EP0436132A2 Process for lowering the cristallisation temperature of poly(arylene sulphides)
07/10/1991EP0436120A2 Method to recover poly(arylene sulfide)s
07/09/1991US5030706 Copolymers containing polybenzoxazole, polybenzothiazole and polybenzimidazole moieties
07/09/1991CA1285733C Biaxially stretched polyparaphenylene sulfide film and process for producing the same
07/03/1991EP0435674A2 High-heat-resistant, crystalline block copolymers and production process thereof
07/03/1991EP0435209A2 Process for preparing granular polyarylene sulfides having high molecular weight
07/02/1991US5028661 Adhesion promoters for thiolene adhesive formulations
06/1991
06/28/1991WO1991009828A1 Treatment of impurity-containing liquid streams in ethylene oxide/glycol processes with semi-permeable membranes
06/28/1991CA2048624A1 Treatment of impurity-containing liquid streams in ethylene oxide/glycol processes with semi-permeable membranes
06/28/1991CA2027763A1 Method to recover poly(arylene sulfide)s
06/27/1991WO1991009081A1 Crosslinkable fluorinated polymer compositions
06/27/1991WO1991009071A1 Electronic articles containing a fluorinated poly(arylene ether) dielectric
06/26/1991CN1052488A Conductive polymers improved solubility
06/26/1991CA2033150A1 Process for preparing granular polyarylene sulfides having high molecular weight
06/25/1991US5026824 Copoly(phenylene sulfide)
06/21/1991WO1991009073A1 Uncharged morpholino-based polymers having achiral intersubunit linkages
06/19/1991WO1991009072A1 Process for the preparation of copoly(arylene sulfide) having an increased amount of disulfide radicals
06/19/1991EP0432562A1 Polyhétérocycles with rigid chain and better solubility, their process of production and use
06/19/1991EP0432561A2 Graft cocondensate made of a polyarylenesulfide backbone and side chains with liquid crystal properties
06/19/1991EP0432406A2 Polysulfide derivatives, process for their preparation and their use in the reticulation of natural or synthetic rubbers
06/19/1991CA2071516A1 Process for the preparation of copoly(arylene sulfide) having an increased amount of disulfide radicals
06/18/1991US5024876 Reinforced plastic comprising poly(arylene sulfide sulfone) polymer containing ether groups matrix
06/12/1991EP0431613A2 Process for preparing poly(arylene sulfide sulfone)
06/12/1991EP0431124A1 New plastics based on fatty acids.
06/11/1991US5023315 Reacting dihaloaromatic component with complex of lactams, alkali hydroxide and sulfur source, such as alkali metal bisulfide, thiolactam or hydrogen sulfide; whiteness, purity
06/08/1991CA2024795A1 Process for preparing poly(arylene sulfide sulfone)
06/05/1991EP0430139A2 Polymeric nonlinear optical materials from anisotropic dipolar monomers
06/05/1991EP0429701A1 Curable resin composition
06/05/1991EP0429508A1 Blends of copoly(arylene sulfide) and poly(arylene sulfide)
06/04/1991US5021546 Reactiog diiodo(benzene or biphenyl) with elementary sulfur
06/04/1991US5021518 Ethynyl terminated imidothioethers and resins therefrom
06/04/1991US5021517 Dissolving heterocyclic polymer and a thermoplastic resin in a common solvent, extrusion and compression molding
06/04/1991CA1284653C Instant adhesive composition utilizing calixarene accelerators
05/1991
05/30/1991WO1991007454A1 Fluorinated poly(ether sulfones)
05/29/1991DE3939061A1 New aromatic poly:ether-sulphone polymers with end gps. - prepd. by reaction of aromatic di:hydroxy cpds. and di:halo cpds. with sulphone gps.
05/28/1991CA2030835A1 Polymeric nonlinear optical materials from anisotropic dipolar monomers
05/22/1991EP0428484A2 Well-ordered polyetherketonesulfones
05/22/1991EP0428342A2 Stable thiol-ene compositions
05/22/1991EP0428019A1 Polyethersulfone-polyarylenesulfide block copolymers and process for making them
05/21/1991US5017682 Process for the production of unbranched polyarylene sulfides of improved color quality and improved color stability
05/18/1991WO1991008249A1 Process for the preparation of copoly(arylene sulfide) having a decreased amount of disulfide radicals
05/18/1991CA2068730A1 Process for the preparation of copoly(arylene sulfide) having a decreased amount of disulfide radicals
05/15/1991EP0427134A1 Treatment of polyarylene sulfide/sulfone polymers
05/15/1991EP0427133A2 Process for preparing poly(arylene sulfide sulfone)
05/15/1991CA2029713A1 Ordered polyether ketone sulfones
05/14/1991US5015725 Aromatic sulfide/sulfone polymer production
05/14/1991US5015704 Reactively capped polyarylene sulfide and method and intermediates for their preparation
05/14/1991US5015703 Reactively capped polyarylene sulfide and method and intermediates for their preparation
05/14/1991US5015702 Heat resistant polymers for films, fibers, moldings and composites with good electrical properties and chemical resistance
05/14/1991CA2029848A1 Stable thiolene compositions
05/07/1991US5013822 Process for preparing poly(arylene sulfide sulfone) with in-situ preparation of alkali metal carboxylate
05/07/1991US5013821 Ortho and thio-ortho ester polymer
05/07/1991US5013816 Preparation of particulate polymers
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