Patents for C08G 64 - Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule (9,881)
09/1997
09/10/1997EP0794209A2 End group modified polycarbonates for digital video discs
09/10/1997EP0794168A1 Process for the preparation of diarylcarbonates and from these obtainable polycarbonates
09/10/1997EP0794043A2 Process for producing polycarbonate agglomerates
09/09/1997US5665831 Biocompatible block copolymer
09/09/1997US5665501 Photoconductive element with polycarbonate binder
09/02/1997US5663278 (Co)polycarbonate and process for producing the same
08/1997
08/27/1997CN1157753A Viscous liquid stirring device and process for producing polycarbonate by using stirring device
08/21/1997WO1997030105A1 Increasing the molecular weight of polycondensates
08/21/1997WO1997029778A2 Bioresponsive pharmacologically-active polymers and articles made therefrom
08/21/1997CA2243692A1 Increasing the molecular weight of polycondensates
08/20/1997EP0789722A1 Polycarbonate and polyester compositions
08/19/1997US5658995 Implantable medical devices and drug delivery; tensile strength
08/19/1997US5658989 Coatings, hydrolysis resistance
08/19/1997US5658978 Heat resistance, impact strength, transparency
08/13/1997CN1035618C process for preparing aromatic polycarbonates
08/06/1997EP0787756A2 Polycarbonate copolymer containing oxaspiroundecane group and production process therefor
08/06/1997EP0787160A1 Silane oligomer and radiation curable coating composition containing the oligomer
08/06/1997CN1035556C Process for preparing poly akylene carbonic ester
07/1997
07/30/1997EP0785967A1 Increasing the molecular weight of polycondensates
07/29/1997US5652324 Process for the production of thermoplastic polycarbonate
07/29/1997US5652313 Two-stage process for the manufacture of thermoplastic polycarbonate
07/29/1997US5652275 Process for the chemical recycling of polycarbonates
07/22/1997US5650480 Process for preparing polycarbonate
07/22/1997US5650470 Polycarbonate redistribution using diethyldimethylammonium hydroxide as catalyst
07/15/1997US5648437 Process for the manufacture of thermoplastic polycarbonate
07/15/1997US5648414 Screen printing ink containing polycarbonate binder
07/10/1997DE19600272A1 Isolating partly crystalline polycarbonate powder from solution
07/10/1997DE19600271A1 Isolating partly crystalline polycarbonate powder from solution
07/09/1997EP0783011A2 Method of isolating semi-cristalline polycarbonate powders
07/09/1997CN1153791A Process for preparing polytetramethylene carbonate diol
07/09/1997CN1035387C Method for preparing aromatic copolymerized carbonic ether
07/08/1997US5646233 Polycarbonate copolycarbonate resin compositions and preparing method thereof
07/08/1997US5645910 Formazan-cyanine copolymers dyes for optical recording layers and elements
07/01/1997US5644017 Solvent resistance, flame resistance, molding materials
06/1997
06/26/1997WO1997022650A1 Process for preparing aromatic polycarbonate
06/26/1997WO1997022649A1 Optical disk substrate
06/18/1997EP0779312A2 Manufacturing method for polycarbonate
06/18/1997EP0778859A1 Production of scratch-resistant polycarbonate moldings
06/18/1997CN1152322A Cross-linked or cross-linkable optical polycarbonates and optical components comprising said optical polycarbonates
06/12/1997WO1997020878A1 Polycarbonate resin, crosslinked polycarbonate resin and electrophotographic photoreceptor
06/11/1997EP0778078A1 A viscous liquid stirring device and a process for producing polycarbonate by using the stirring device
06/10/1997US5637655 Cyclic carbonate is transesterified with polymer resin
06/05/1997WO1997019996A1 Copolymers of tyrosine-based polycarbonate and poly(alkylene oxide)
06/05/1997WO1997019975A1 Processes for the production of polycarbonate
06/04/1997EP0776341A1 Cationic polymerization in carbon dioxide
05/1997
05/28/1997CN1150595A Method of preparing polycarbonate-polysiloxane block copolymers
05/27/1997US5633339 Use of tertiary aliphatic monocarboxylic acids as chain terminators for the preparation of polycarbonates and of polyester carbonates
05/27/1997US5633060 Contains a significant proportion of 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane
05/22/1997DE19542928A1 Production of polymers
05/21/1997EP0774495A1 Optical recording elements containing new polymeric cyanine dyes with reduced bubble formation
05/21/1997EP0774478A2 Polycarbonate redistribution method
05/21/1997EP0672305B1 Electrode membrane
05/20/1997US5631344 Biodegradable
05/14/1997EP0773481A1 Photoconductive element containing polycarbonates crosslinked by aryltricarboxylic acids or their acid chlorides
05/14/1997EP0773249A1 Polyphenylene co-polymers
05/14/1997CN1149529A Method for increasing catalyst efficiency in redistribution process of poly carbonic ester
05/13/1997US5629404 The bisphenol a is modified at its methyls by a group promoting hydrogen bonding with a hydrogen of a phenyl ring.
05/09/1997WO1997016465A1 Telechelic polymers from mixed initiator
05/07/1997EP0771581A2 Precipitation of polymers from solvent polymer blends
05/02/1997EP0770636A2 Process for the preparation of poly(diorganosiloxane)-polycarbonate block copolymers
05/02/1997EP0770589A2 Process for the preparation of bisphenols using new co-catalysts
05/02/1997EP0770104A1 Increase in molecular weight of polycondensates
04/1997
04/29/1997USRE35499 Elimination of monocarbonate from polycarbonate
04/29/1997US5625027 Branched polycarbonate
04/23/1997EP0769526A2 Flame-retardant, stress-crack resistant blends of polycarbonate/ABS
04/22/1997US5623026 Stable, aging resistant nonhydrolyzing blends
04/17/1997WO1997013802A1 Coated plastic substrate
04/16/1997EP0768155A1 Process for making thermoplastic granules from polymer solutions
04/15/1997US5621065 Polycarbonate diols, their preparation and use as starting products for polyurethane plastics
04/09/1997EP0767411A1 Electrophotographic photoconductor for use with liquid toners
04/08/1997US5618906 Process for the production of thermoplastic polycarbonates
04/08/1997US5618902 Vapor precipitation of polymers from solvent polymer blends by azeotropic spray drying
04/08/1997US5618890 Allylphenol-terminated polycarbonates grafted with maleic anhydride, their use for the production of blends with polyamide and the corresponding blends
04/08/1997US5618887 Reacting polymer in aqueous medium with peroxidant to produce oxygen-centered radicals which introduce hydroxyl groups into polymer
04/01/1997US5616674 Method of preparing polycarbonate-polysiloxane block copolymers
03/1997
03/27/1997WO1997011107A1 Polycarbonate and process for producing the same
03/26/1997EP0764676A2 Method of preparing polycarbonate-polysiloxane block copolymers
03/26/1997EP0764673A2 Process for the production of polycarbonate
03/26/1997EP0664818B1 Partially-fluorinated polymers
03/26/1997EP0461247B1 (co)polymer crosslinking method and crosslinkable compositions
03/26/1997CN1034345C Lubricant oil compositions
03/25/1997US5614599 Stilbenediol, melt processability, moldings
03/19/1997EP0383954B1 Branched polycarbonates and process for production thereof
03/19/1997CN1145352A Process for purification of bisphenol
03/18/1997CA2087134C Polycarbonate and use thereof
03/12/1997EP0761714A2 Method for improving catalyst efficiency during polycarbonate redistribution
03/12/1997CN1145078A Process for producing hydroxyl-terminated polycarbonate
03/12/1997CN1144815A One-step synthetic optical disk grade polycarbonate
03/11/1997US5610262 Process for producing polycarbonate
03/11/1997US5610242 Process for modifying polymers
03/06/1997WO1997008227A1 Process for producing polycarbonate prepolymer granules for solid-state polymerization
02/1997
02/27/1997WO1997006825A1 Hyperbranched polymers
02/26/1997EP0759451A2 Polymeric fluorescence markers
02/26/1997EP0759045A1 Cross-linked or cross-linkable optical polycarbonates and optical components comprising said optical polycarbonates
02/26/1997CN1143970A Condensation and addition polymers with N, N'-bridged bis-tetramethylpiperidinyloxy groups
02/25/1997US5606108 Process for preparing anionic polycarbonate and polyester oligomers having useful antiviral properties
02/25/1997US5606009 Improved flow and formability; excellent mechanical properties, heat resistance, transparency and water resistance
02/25/1997US5606008 Preparation method of polycarbonate resin
02/25/1997US5606007 Processes for preparing aromatic polycarbonates
02/25/1997US5605979 Melt transesterification of polyesters or polycarbonates with cyclic carbonates
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