Patents for C08G 64 - Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule (9,881)
08/1980
08/06/1980EP0013958A1 Process for the preparation of carbonic acid esters and polycarbonates
08/06/1980EP0013957A1 Process for the preparation of carbonic acid esters and its application to the preparation of polycarbonates
08/06/1980EP0013904A1 Process for the preparation of polycarbonates
08/05/1980US4216305 Aromatic polyformal carbonates and method for making
07/1980
07/29/1980CA1082842A1 Process for the preparation of new high-molecular segmented polyester-polycarbonates which can be processed by thermoplastic methods and new polyester- polycarbonates obtained according to the process
07/23/1980EP0013282A1 Copolycarbonates of phenolphthalein polycarbonates and other polycarbonates and their preparation
07/22/1980US4214073 Poly-(carbonate-urethane)-triols and preparation thereof
07/15/1980US4212967 Steam dispersion
07/15/1980US4212774 Depolymerization by saponification; seapartion and repolymerization
07/01/1980US4210731 Aromatic polyformal-polycarbonate block polymers and method for making same
05/1980
05/27/1980US4205154 Triallyl carbonate polymers
05/14/1980EP0010840A1 Aromatic polyester-polycarbonate and a process for the production thereof
05/14/1980EP0010602A1 Polycarbonates with alkylphenyl end groups and their preparation
05/13/1980US4202949 Bisphenol polycarbonate polymerized with a block polymer of a vinyl aromatic and a conjugated diene, thermal stability
05/06/1980US4201721 A phenol and carbon monoxide with oxidant using platinum group catalyst
05/06/1980US4201720 From the reaction of an aryl carbonate, a mixture of two diols, and an amount of primary aliphatic triol to produce one molecule triol/polymer chain
04/1980
04/30/1980EP0010164A1 Process for the preparation of modified polycarbonate moulded articles
04/22/1980US4199540 Modified polycarbonates and a process for their preparation
04/16/1980EP0009747A2 Grafted polycarbonates and their preparation
04/02/1980EP0009184A1 Bis(4-hydroxyphenylthio) benzene, its preparation and application for the preparation of polycarbonates
04/01/1980US4196276 High-molecular weight, segmented, polycarbonate elastomers
03/1980
03/25/1980US4195157 Polycarbonate compositions having improved barrier properties
03/25/1980US4195156 Alkali metal salts of dihydroxy- benzene mono or di sulfonic acids as comonomers
03/19/1980EP0008823A1 Crosslinked copoly(carbonate/phosphonate)compositions
03/19/1980EP0008724A1 Process for preparing polymers with diphenyl-carbonate end groups
03/18/1980CA1073928A1 1,1,2-tris-(o/p-hydroxyphenyl)-1-phenyl-ethanes and a process for their preparation
03/18/1980CA1073927A1 Trisphenols
03/11/1980US4192940 Polyesters which can be prepared by reacting a carbonic acid aryl ester with a polyester prepared from a polyhydric alcohol and a polybasic carboxylic acid which is aliphatic
03/06/1980WO1980000348A1 Polycarbonate compositions having improved barrier properties
03/05/1980EP0008492A1 Method for manufacture of aromatic polyester-polycarbonate
02/1980
02/19/1980US4189609 Multi-block coupled polyoxyalkylene copolymer surfactants
02/12/1980US4188475 Process for the preparation of flame-retardant polycarbonates
02/05/1980US4187242 Phenol, carbon monoxide, group 8b element, oxidizer, base
02/05/1980CA1071231A1 Process for the purification of polycarbonates
01/1980
01/24/1980WO1980000061A1 Optically transparent,radiographically opaque tubing
01/23/1980EP0006842A1 Organophosphonate co-ester, stabiliser composition containing it and synthetic resin stabilised therewith
01/22/1980US4185009 Branched, high-molecular weight thermoplastic polycarbonates
01/09/1980EP0006579A1 Polycarbonates with double bonds cross-linkable by UV light, process for preparing same, process for their modification and the products obtained thereby
01/09/1980EP0006578A2 Process for producing moulding masses from polycarbonates cross-linked with energetic radiations, the obtained moulding masses and their use as membranes
01/09/1980EP0006516A1 Process for preparing aliphatic-aromatic polycarbonates with diphenyl-carbonate end groups, the polycarbonates obtained thereby, and their use in a process for preparing thermoplastically workable, high-molecular, segmented aliphatic-aromatic polycarbonate elastomers
01/08/1980US4182850 Non-solvent precipitation of polymer composition
01/08/1980US4182838 Polycarbonate compositions having improved flame retardance and improved water vapor transmission
01/08/1980US4182787 Polysiloxane-polycarbonate terpolymer
01/08/1980US4182725 Stabilizers for polymers against thermal oxidation and photochemical degradation
12/1979
12/25/1979US4180651 Polycarbonate composition having resistance to high heat distortion
12/04/1979US4177343 Purification of polymer solution
11/1979
11/13/1979US4174437 Cyanuric chloride
11/13/1979US4174359 Flame retardant polycarbonate polyblends
11/13/1979US4174297 Polyhydric phenol coester stabilizers
10/1979
10/23/1979CA1064957A1 Process for the preparation of polycarbonates
10/23/1979CA1064956A1 Process for the preparation of oligocarbonates
10/09/1979US4170711 Flame retardants for polyesters, polycarbonates, and polyurethanes
10/09/1979US4170587 Fireproofing
10/09/1979CA1064191A1 Branched, high-molecular weight thermoplastic polycarbonates
10/02/1979US4169868 Process for the preparation of new high-molecular segmented polyester-polycarbonates which can be processed by thermoplastic methods and new polyester-polycarbonates obtained according to the process
09/1979
09/19/1979EP0004020A1 Polycarbonate moulding compositions with improved tenacity
09/19/1979EP0003996A1 Continuous process for the recovery of polycarbonate from solutions of it, and polycarbonate powders thus obtained
09/18/1979US4168368 Polycarbonates incorporating 2-methylepichlorohydrin
09/18/1979CA1062845A1 Process for preparing a branched polycarbonate
09/11/1979US4167536 Organopolysiloxane-phenolphthalein-polycarbonate copolymers
09/11/1979CA1062394A1 Phenolphthalein-dihydroxy aromatic compound polycarbonates
09/11/1979CA1062281A1 PROCESS FOR THE PRODUCTION OF .alpha.,.alpha.,.alpha.,.alpha.',.alpha.',.alpha.'-HEXAKISARYL-1,3-AND-1,4-DIMETHYL BENZENES
09/04/1979US4166898 Process for producing copolymer having carbonate linkages
08/1979
08/21/1979US4165423 Poly-(carbonate-urethane)-triols and preparation thereof
07/1979
07/10/1979US4160791 Polyether-polycarbonate block copolymers useful as membranes for hemodialysis
06/1979
06/27/1979EP0002641A1 Improved process for the preparation of aliphatic hydroxytelechelic polycarbonates by direct phosgenation, and the products so obtained
05/1979
05/29/1979US4156769 Process for making polycarbonates using 1,1-dimethyl urea compounds as the catalysts
05/22/1979US4156099 Process for preparing dihydroxydiphenyl chloroethylenes
05/22/1979CA1055193A1 Flame retardant polycarbonate composition
05/15/1979CA1054744A1 Process for preparing polycarbonates
05/08/1979US4153780 Process for the preparation of polycarbonate with weatherproof property
05/02/1979EP0001579A1 Polycarbonates with double bonds containing end groups, curable by ultraviolet light, their manufacture and their modification
05/02/1979EP0001578A1 Modified polycarbonates and process for their preparation
05/02/1979EP0001577A1 Thermoplastic polycarbonates containing aromatic keto groups, process for preparing same and their use for the production of modified polycarbonates
03/1979
03/27/1979US4146587 Segment polymers derived from aromatic vinyl-diene block polymer anion and aromatic polycarbonate
03/27/1979US4146517 Inorganic and organic acid coester stabilizers
03/27/1979CA1051590A1 HIGH MOLECULAR WEIGHT POLYCARBONATES OF .alpha.,.alpha.,.alpha.,.alpha.',.alpha.',.alpha.'-HEXAKISARYL-1,3-AND/OR-1,4-DIMETHYL BENZENES
03/27/1979CA1051589A1 Phase boundary process for the preparation of aromatic polycarbonates using a chlorinated aromatic hydrocarbon as the polymer solvent
03/21/1979EP0001096A2 Flame retardant polycarbonate blends
03/20/1979US4145525 Improved thermal stability; reactive phosphorus compound
03/13/1979US4144262 Triallyl carbonate monomers
03/07/1979EP0000904A1 Recovery of high value polycarbonate from polycarbonate wastes
03/06/1979US4143024 Thermoplastic polycarbonate moulding compositions with improved ease of mould release
02/1979
02/27/1979US4142035 Polycondensates containing hydroxyquinoline end groups, their use for the preparation of polymers containing metals and metal containing polycondensates
02/27/1979CA1049565A1 Separation of bisphenol-a from the alkaline phase generated in the production of polycarbonates
02/21/1979EP0000753A1 Process for the preparation of polycarbonates and the polycarbonates obtained
02/13/1979US4139694 Colorless allyl diglycol carbonate articles
02/13/1979US4139687 Cyclic carbonate trimer of 2,2-bis(4-hydroxyphenyl)-1,1-dichloroethylene
02/13/1979US4139578 Unsaturated polyesters, unsaturated esters, shrinkage inhibition, optic lenses
02/07/1979EP0000547A1 Aromatic polycarbonates containing sulphur, method for their preparation, and their glass-reinforced compositions
02/07/1979EP0000510A1 Polyesters containing carbonate groups
01/1979
01/30/1979US4137219 Polycondensates containing hydroxyquinoline end groups, their use for the preparation of polymers containing metals and metal containing polycondensates
01/24/1979EP0000396A1 Process for the preparation of flame retardant polycarbonates
01/16/1979CA1046693A1 Polycarbonates containing s-triazine compounds as linking members between two molecules of bis-hydroxy aromatic compounds
01/02/1979CA1045738A1 Process for removing contaminants from polycarbonate solutions
12/1978
12/26/1978US4131731 Process for preparing polycarbonates
12/20/1978EP0000060A1 Process for the preparation of bis-carbonates from diphenols and polyoxyalkylene glycols lengthened by carbonate groups and their application in the preparation of macromolecular thermoplastic polycarbonate polyether block copolymers.
12/12/1978US4129612 Thermoplastic
12/12/1978US4129546 Lowers viscosity of high molecular weight aromatic carbonate polymer
11/1978
11/28/1978US4127561 Polycarbonates and a process for their preparation
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