| Patents for C08G 64 - Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule (9,881) |
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| 09/16/1993 | WO1993018081A1 Polycarbonate polymer, production thereof, and electrophotographic photoreceptor made therefrom |
| 09/15/1993 | EP0559953A2 Process for producing (co)polycarbonate and (co)polycarbonate composition |
| 09/14/1993 | US5244982 (co)polymer cross linking process, cross-linked compositions, uses and shaped objects |
| 09/08/1993 | CN1022039C Process for prepn. of catalyst for synthesizing polycarbonate, polyester and poly ether |
| 09/07/1993 | US5243018 Branched halogenated polycarbonate having trihalo phenoxy end groups |
| 09/07/1993 | US5243009 Hydroxyarylestersiloxanes |
| 09/07/1993 | US5242973 Trihalophenoxy terminated polycarbonate resin composition containing salt of organic sulfonic acid |
| 09/07/1993 | CA1322070C Production of high molecular weight polyhalobisphenol polycarbonates |
| 09/04/1993 | CA2089279A1 Branched aromatic carbonate polymer |
| 09/02/1993 | WO1993017358A1 Phase difference compensation film |
| 09/01/1993 | EP0557654A1 Polyphenelene ether alloys |
| 08/24/1993 | US5238590 Lubricant oil, polyalkylene glycol polycarbonates and process for preparing them |
| 08/10/1993 | US5235026 In a continuous process of interfacial polymerization limiting the amount of alkali hydroxide to form just the chloroformate ester before adding more to make the polymer |
| 08/10/1993 | US5234993 Process for making polyamide/polyolefin blends having superior improved toughness and stiffness |
| 08/05/1993 | WO1993015129A1 Polycarbonate and production thereof |
| 08/03/1993 | US5233046 Diarylacetylenes, enamines and acetylenic polymers and their production |
| 08/03/1993 | US5232989 Hydroformylation of polyoefins, reduction to hydroxyl groups, reacting with diisocyanate |
| 07/28/1993 | EP0552352A1 Process for the preparation of high molecular weight halogenated polycarbonate |
| 07/28/1993 | CA2085655A1 Conversion of cyclic polycarbonate oligomers to linear polycarbonates initiated by phosphine-disulfide product or precursor thereof |
| 07/27/1993 | US5231149 Improved solvent resistance |
| 07/27/1993 | CA1320787C Method of regulating the polymerization of cyclic polycarbonates |
| 07/27/1993 | CA1320786C Method for the preparation of cross-linked polycarbonates, and compositions made therefrom |
| 07/27/1993 | CA1320785C Preparation of linear polycarbonates from cyclic oligomer compositions using metal chelate catalyst |
| 07/27/1993 | CA1320772C Neutralization of polyalkylene carbonate polyols for polyurethane prepolymer synthesis |
| 07/22/1993 | WO1993014146A1 Narrow poly- and mono-dispersed anionic oligomers, and their uses, formulations and process |
| 07/22/1993 | WO1993014143A1 Preparation of polycarbonates |
| 07/22/1993 | WO1993009074A3 Chlorination process, alkylation of products of said process and some products thereof |
| 07/22/1993 | CA2127356A1 Narrow poly-and mono-dispersed anionic oligomers, and their uses, formulations and process |
| 07/21/1993 | EP0551865A2 Polycarbonate and use thereof |
| 07/21/1993 | CN1074437A Narrow poly-and mono-dispersed anionic oligomers, and their uses, formulations and process |
| 07/20/1993 | US5229486 Process for isolating polymers from their solvents using liquids containing carbon dioxide |
| 07/15/1993 | DE4200320A1 New polyether-polycarbonate block copolymers - derived from 1,1-bis-(4-hydroxyphenyl)-cycloalkane(s) and polyether-glycol(s) by reaction with phosgene, etc. |
| 07/13/1993 | US5227458 Polycarbonate from dihydroxydiphenyl cycloalkane |
| 07/13/1993 | US5227456 Improved adhesion |
| 07/13/1993 | US5227449 Photoconductive imaging members with polycarbonate binders |
| 07/08/1993 | WO1993012869A1 Meta, para-bisphenol based polymer gas separation membranes |
| 07/08/1993 | DE4142764A1 Use of mixts. of isomeric 9-carbon alkylphenol(s) - as chain cleavage agents in prodn. of thermoplastic aromatic polycarbonate(s) |
| 07/06/1993 | US5225518 Polycarbonate preparation from molten bisphenol-A/water mixture |
| 07/01/1993 | DE4141718A1 Polycarbonate(s) with reactive end gps., useful for grafting - prepd. using benzyl- or benzyloxy-phenol(s) as chain stoppers, opt. with other mono:phenol(s) |
| 07/01/1993 | CA2082726A1 Polyphenylene ether alloys |
| 06/30/1993 | EP0548686A2 Blends of polyether-copolycarbonates and high molecular weight, film-forming polycarbonates |
| 06/30/1993 | EP0496737A4 Hydrodegradable polyesters |
| 06/29/1993 | US5223638 Reacting primary or secondary amine with carbon dioxide in presence of strong amidine or guanidine base to form ammonium carbamate salt, reacting in polar aprotic solvent with primary or secondary hydrocarbyl halide |
| 06/29/1993 | CA1319476C Semi-permeable membranes with an internal discriminating region |
| 06/23/1993 | EP0547479A2 Process for cracking polycarbonates |
| 06/22/1993 | US5221761 Melt transesterification process for the production of polycarbonates |
| 06/22/1993 | US5221731 Process for isolating polycarbonates with co2 under pressure |
| 06/22/1993 | CA1319230C Process for preparing powadir membranes from tetrahalobisphenol a polycarbonates |
| 06/16/1993 | CN1073137A Laminates of polymers having perfluorocyclobutane rings and polymers containing perfluorocyclobutane rings |
| 06/08/1993 | US5218078 Catalytic emulsion polymerizations of halogenated dihydroxy compounds in aqueous mixtures containing base and organic solvents, two-stage polymerizations |
| 06/08/1993 | US5217762 Liquid crystalline polymer |
| 06/05/1993 | CA2083878A1 Block copolymers of aromatic polycarbonates |
| 06/02/1993 | EP0544497A2 Delustered thermoplastic resin compositions |
| 06/02/1993 | EP0544407A1 Copolymeric polycarbonates |
| 06/01/1993 | US5216115 Polyarylate containing derivatives of the natural amino acid L-tyrosine |
| 06/01/1993 | CA1318529C Contact lens for correction of color blindness |
| 05/25/1993 | US5214183 Method for making oligomeric bisphenol monochloroformate polycarbonate oligomers and product |
| 05/25/1993 | US5214118 Process for synthesis of polyestercarbonate-siloxane copolymers |
| 05/25/1993 | US5213924 Electrophotographic photoreceptor containing polycarbonate resin as binder resin |
| 05/25/1993 | CA1318452C Branched polycarbonates containing hydroxy-naphthoic acids or their derivatives, and process for preparing them |
| 05/18/1993 | US5212284 Heat activated catalyst |
| 05/18/1993 | US5212282 Esterification, oligomerization, interfacial polymerization |
| 05/18/1993 | US5212281 Catalytic condensation polymerization in solvents of halogenated dihydroxy compounds |
| 05/18/1993 | US5212280 Polycarbonate from special dihydroxydiphenyl bicycloalkane |
| 05/18/1993 | US5212015 Coated substrates comprising polymers derived from monocarbamate diols |
| 05/13/1993 | WO1993009183A1 Process for making polyamide/polyolefin blends |
| 05/13/1993 | WO1993009079A1 Diarylacetylenes, enamines and acetylenic polymers and their production |
| 05/13/1993 | WO1993009074A2 Chlorination process, alkylation of products of said process and some products thereof |
| 05/13/1993 | CA2123080A1 Process for making polyamide/polyolefin blends having superior improved toughness and stiffness |
| 05/13/1993 | CA2122465A1 Chlorination process, alkylation of products of said process and some products thereof |
| 05/11/1993 | US5210173 After dosing at least one-fifth of carbonate precursor, the remaining organic solvent is added in amount at least sufficient to maintain formed polycarbonate in solution |
| 05/11/1993 | US5210172 Method for the continuous preparation of carbonate oligomers with loop reactor, static mixer and plug flow |
| 05/11/1993 | US5210122 Near-infrared stabilized copolyestercarbonate compositions |
| 05/11/1993 | US5209848 Xylylene based polyether membranes for gas separation |
| 05/11/1993 | CA1317428C Stain resistant polycarbonate panels |
| 05/05/1993 | EP0540502A1 Polymer mixture comprising an aromatic polycarbonate and titaniumdioxyde; objects formed from the polymer mixture |
| 05/05/1993 | EP0540273A1 Thermoplastic silicone-polyphenylene ether block copolymers |
| 05/05/1993 | CN1071670A Process for production of polycarbonates |
| 05/04/1993 | US5208316 Cyclodextrin polymer and cyclodextrin membrane prepared using said polymer |
| 05/04/1993 | US5208299 Optical polymers for electronic processors and integrated circuits |
| 05/04/1993 | US5208128 Photoconductive recording material with special outermost layer |
| 05/04/1993 | US5208127 Multilayer element with polysiloxane block copolymers with aromatic polyesters or carbonates |
| 05/04/1993 | CA1317410C Polycarbonate resins, process for production of said resins, and compositions containing said resins |
| 04/28/1993 | EP0538373A1 Anti-herpes virus and cytomegalovirus oligomers |
| 04/22/1993 | DE4227372A1 Polycarbonate prodn. by continuous interfacial polycondensation from phosgene di:phenol(s) etc. - uses special reactor system with at least 2 minutes between 1st addn. of more alkali and addn. of chain cleavage agent e.g. phenol@ |
| 04/22/1993 | DE4134483A1 Conversion of polycarbonate(s) based on bisphenol=A into partially crystalline granules - involves removing residual di:chloromethane solvent and continuously or batchwise expelling granules of specified solvent content |
| 04/21/1993 | EP0514482A4 Vinyl ether compounds |
| 04/20/1993 | US5204377 Porous, crystallized, aromatic polycarbonate prepolymer, a porous, crystallized aromatic polycarbonate, and production methods |
| 04/15/1993 | DE4129545C1 Prodn. of finely divided aq. sodium bis:phenolate - by mixing bisphenol=A with sodium hydroxide to ppte. prod. and stirring vigorously |
| 04/13/1993 | US5202446 Used in preperation of polyimides |
| 04/07/1993 | EP0535261A1 Process for preparation of polycarbonate |
| 04/07/1993 | EP0370003B1 Sensor construction |
| 04/06/1993 | US5200496 Adding chain terminator and catalyst to control molecular weight |
| 04/01/1993 | DE4132080A1 Polyamide(s) with phenolic hydroxyl gps., useful for polyamide-carbonate prodn. - prepd. from di:acid(s), bis:sec. amine(s), opt. branching agents, and mono:carboxy-phenol(s) with no alkyl gps. ortho to phenolic hydroxyl |
| 03/31/1993 | EP0534189A1 Method for producing polycarbonate |
| 03/30/1993 | US5198527 Arylcyclobutene terminated carbonate polymer |
| 03/30/1993 | US5198513 Reactive compounds containing perfluorovinyl groups |
| 03/30/1993 | US5198507 Synthesis of amino acid-derived bioerodible polymers |
| 03/25/1993 | DE4131586A1 Hydrolysis of polycarbonate(s), to recover bisphenol(s) - by reaction with water at in the presence of organo-tin cpds. as catalyst |
| 03/25/1993 | DE4131187A1 New block copolymers for prodn. of films, sealants and coatings - contg. as one block, polymer of cyclic aliphatic carbonate or copolymer with cyclic aliphatic ester and as other block, poly:siloxane |