Patents for C08G 64 - Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule (9,881)
03/1994
03/02/1994EP0584740A1 Soft polycarbonate resin
02/1994
02/22/1994US5288841 Catalyzing a gas stream of cyclic compound in the presence of metal compound activator to form free-flowing particles
02/22/1994US5288839 Diol-terminated polycarbonates
02/22/1994US5288838 Preparation of polycarbonates with bioxyanion catalyst
02/22/1994US5288837 Preparation of polycarbonate with subsequent addition of chain terminator and base
02/22/1994US5288836 Low temperature interfacial polymerization; photreceptor materials
02/22/1994US5288802 Automotive refinish primer surfacer containing acetoacetate functional polyesterpolyol, a polyacrylate, and an amine functional epoxy resin
02/17/1994WO1994003523A1 Method of modifying polymers
02/16/1994EP0582722A1 Polycarbonate polymer, production thereof, and electrophotographic photoreceptor made therefrom
02/16/1994EP0582707A1 Branched aromatic carbonate polymer
02/16/1994EP0582602A1 New water-soluble, biologically decomposable carbonic acid polyesters and their use as preparing and slip additives of synthetic fibres
02/16/1994CN1082064A A process for preparing a zinc-containing solid catalyst
02/16/1994CN1023809C Zinc-containing solid catalyst, process of preparing same and process for preparing polyalkylene carbonate
02/15/1994US5286834 Condensing bisphenol A and biphenol with a carbonate diester
02/15/1994US5286813 Melt kneading polycarbonate with compound containing carbon to carbon double bond
02/15/1994US5286794 Blends of polycarbonate containing fluorinated-bisphenol A and polyvinyl chloride
02/15/1994CA1327089C Molding resins
02/10/1994DE4225627A1 Verfahren zur Modifizierung von Polymeren A process for the modification of polymers
02/09/1994CN1081665A Process for preparing bisphenol A of good heat stability
02/03/1994WO1994002533A1 Thiodiphenol copolycarbonates and their use as components of multilayered polymeric reflective bodies
02/03/1994CA2139325A1 Thiodiphenol copolycarbonates and their use as components of multilayered polymeric reflective bodies
02/02/1994EP0581074A2 Processes for producing aromatic polycarbonate oligomer and aromatic polycarbonate
02/01/1994US5283314 Process for the production of a branched polycarbonate with emulsion having interfacial area
02/01/1994US5283142 Image-holding member, and electrophotographic apparatus, apparatus unit, and facsimile machine employing the same
01/1994
01/26/1994EP0579644A1 Protective coatings
01/25/1994US5281689 Polycarbonate from bis[4'-(4-hydroxyphenyl)-phenyl]alkanes
01/25/1994US5281688 Polycarbonate from 1,3-bis(4-hydroxyphenyl)-1,3-dialkylcyclohexanes
01/20/1994DE4223016A1 Polycarbonate prpen. from dipheonl and carbonate ester - by polycondensn. of intermediate crystalline oligocarbonate in presence of boiling liq. entraining agent, used in electrical industry
01/12/1994EP0577849A1 Polycarbonate and production thereof
01/11/1994US5278279 Process for producing (co)polycarbonate with transesterification catalyst and compound
01/05/1994EP0576950A2 Thermoplastic moulding materials
01/05/1994DE4220412A1 Cleavage of polycarbonate(s) to give bisphenol(s) and di:aryl carbonate(s) - by catalytic transesterification with phenol(s), isolation of bisphenol, flash distn. of residue and fractionation of distillate
01/04/1994US5276213 Special dihydroxydiphenyl bicycloalkanes, their production and their use for the production of high molecular weight polycarbonates
01/04/1994US5276182 Process for preparing polyurea oligomers
01/04/1994US5276134 Process for the preparation of phenyl carbonates or polycarbonates
01/04/1994US5276129 Aromatic polycarbonates with excellent color tone, heat resistance and water resistance
01/04/1994US5276109 Molding materials with transparency
01/04/1994US5275758 Production of ultrafine suspensions of bisphenol, sodium hydroxide and water
01/04/1994CA2099464A1 Thermoplastic moulding compositions
12/1993
12/29/1993EP0576057A1 Blends of polycarbonate containing fluorinated-bisphenol-A and polyvinyl chloride
12/29/1993EP0575870A1 Aromatic polycarbonate and process for production thereof
12/29/1993EP0575810A2 Polycarbonate and process for producing the same
12/23/1993WO1993025607A1 Carbonate polymer laminate structures
12/23/1993WO1993025587A1 Functionalisation of polymers
12/23/1993CA2138163A1 Carbonate polymer laminate structures
12/22/1993EP0575177A1 Optical recording medium, substrate for optical recording medium, and method for preparing substrate for optical recording medium
12/08/1993EP0573110A1 Blends of polycarbonate containing fluorinated-bisphenol A and polymethyl methacrylate
12/08/1993CN1079311A Electrophotographic photosensitive member, and electrophotographic apparatus and device unit employing the same
12/07/1993CA1324925C Coated polycarbonate articles
12/01/1993EP0571869A1 Process for the preparation of polycarbonates
11/1993
11/30/1993US5266716 Process for the splitting of polycarbonates
11/30/1993US5266659 Chain extension of polycarbonates by controlling the heating in presence of a catalyst, then depressurizing
11/24/1993EP0570908A1 Electrophotographic photosensitive member, and electrophotographic apparatus and device unit employing the same
11/23/1993US5264548 Low melting cyclic polycarbonate composition
11/23/1993US5264537 From a diphenol and a dicyanate, biodegradation
11/16/1993US5262511 Branched aromatic carbonate polymer
11/11/1993WO1993022361A1 Ester polymer, production thereof, and electrophotographic photoreceptor made therefrom
11/11/1993DE4215209A1 Mixt. of polycarbonate and non halogenated solvents - using polycarbonate(s) based on di-hydroxy di-phenyl cyclo alkane units, avoids problems caused by use of toxic halogenated solvents
11/10/1993EP0568740A1 Process for the preparation of high molecular weight poly (arylcarbonates)
11/09/1993US5260473 Preparation of urethane and carbonate products
11/09/1993US5260418 By means of water, and/or hydrochloric acid to remove electrolytes and catalysts
11/09/1993US5260129 Polyether/polycarbonate block copolymer coatings for plastic moldings
11/03/1993EP0568151A2 Melt transesterification process for the production of polycarbonates
11/02/1993USRE34431 Macrocyclic oligomers containing spiro(bis)indane moieties
11/02/1993US5258484 Continuous process with reaction of phosgene and dialkali phenolate
10/1993
10/28/1993WO1993021282A1 Novel nonlinear optical arylhydrazones and non linear optical polymers thereof
10/28/1993CA2132870A1 Novel nonlinear optical arylhydrazones and non linear optical polymers thereof
10/27/1993EP0412101B1 Novel methine compounds, polymers containing them and formed articles therefrom
10/26/1993US5256728 Polycarbonate-titanium dioxide compositions and method
10/20/1993EP0565895A1 Polycarbonate copolymer and method for production thereof
10/14/1993WO1993020126A1 Biodegradable polycarbonates and their use as drug carriers
10/14/1993DE4212083A1 Polyamide-polycarbonate(s) with urethane gps. between the blocks - obtd. by interfacial polycondensation of di:phenol(s) with phosgene and chain cleavage agents, etc., followed by addn. of amine-terminated polyamide
10/14/1993CA2128621A1 Biodegradable polycarbonates and their use as drug carriers
10/13/1993EP0565311A1 Copolycarbonate
10/13/1993EP0564727A1 Process for the preparation of aryl polycarbonates in the presence of bioxyanion catalysts
10/13/1993EP0564547A1 Process for the preparation of arylcyclobutene terminated condensation polymers
10/13/1993EP0564517A1 Arylcyclobutene terminated carbonate polymers
10/13/1993CN1077205A 组合物 The composition
10/07/1993CA2092459A1 Composition
10/05/1993US5250658 Isolation of polycarbonate with carbon dioxide
10/05/1993US5250655 Ester interchange catalyst; non-phosgene method
10/05/1993US5250622 Polymer combinations with a high rubber content
10/05/1993CA1322809C Polycarbonates containing aralkylphenyl end groups, their preparation and their use
10/05/1993CA1322808C Functionalized thermoplastic polymers
10/01/1993CA2092977A1 Polycarbonate copolymer and method for production thereof
09/1993
09/30/1993WO1993019112A1 Wholly aromatic liquid crystalline polymers containing ionic monomer units and laminates thereof
09/28/1993US5248763 Isolation of poly(ester)carbonates from methylene chloride using carbon dioxide fluid
09/28/1993US5248754 Process for continuous production of polycarbonate oligomer
09/28/1993CA1322554C Meta-halo-phenolic alkylation products and epoxy systems
09/28/1993CA1322444C Process for drying water-wet polycarbonate membranes
09/28/1993CA1322443C Semi-permeable membranes comprising predominantly of polycarbonates derived from tetrahalobisphenols
09/28/1993CA1322442C Tetrabromo bisphenol based polyestercarbonate membranes and method of using
09/28/1993CA1322440C Gas separation membranes from bisphenol af polycarbonates and polyestercarbonates
09/22/1993EP0561638A1 Optical-grade polycarbonate resin compositions
09/22/1993EP0561629A2 Polycarbonate resin compositions
09/22/1993EP0561363A2 Process for producing polycarbonate
09/21/1993US5247053 Halogenated copolycarbonates having improved end group selectivity and resistance to degradation
09/21/1993US5246782 Laminates of polymers having perfluorocyclobutane rings and polymers containing perfluorocyclobutane rings
09/20/1993CA2063459A1 Solvent resistant linear polycarbonate compositions
09/16/1993WO1993018082A1 Branched aromatic carbonate polymer
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