Patents for C08G 64 - Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule (9,881)
12/1988
12/27/1988US4794141 Thermoplastic moulding compositions based on polysiloxane/polycarbonate block copolymers
12/21/1988EP0295737A2 Branched polycarbonates containing hydroxy-naphthoic acids or their derivatives, and process for preparing them
12/21/1988EP0295376A2 Process for the preparation of hydroxy-terminated polycarbonate polymers
12/15/1988DE3817372A1 Process for the preparation of a dichloroformate and of a copolycarbonate oligomer
12/14/1988EP0295127A2 Arylamine polymers
12/14/1988EP0295125A2 Polyarylamine compounds
12/14/1988EP0295113A2 Polyarylamine compounds
12/13/1988US4791234 Reacting bisphenol or isopropenylphenol with acidic catalyst, removing by-products, precipitation with water from solvent mixture
12/13/1988US4791188 Ultraviolet light absorbers; nonextractable; beverage and food containers; polyesters and polycarbonates
12/07/1988EP0293891A2 Process for producing high impact resistant polycarbonate
12/07/1988EP0293769A2 Polycarbonate for disc substrate
12/07/1988EP0293690A2 A method of increasing the thermal stability of cyclic carbonate oligomers
12/06/1988US4789730 Preparation of polycarbonate having reduced cyclic carbonate oligomer content
12/06/1988US4789727 Polyalkylene carbonates from alkylene oxides
12/06/1988US4789725 Phenylene ether-carbonate copolymer containing spiroindane group
12/06/1988US4789723 Carbonyl chloride, sulfonyl chloride substituted
12/06/1988CA1246265A1 Continuous release formulations
11/1988
11/30/1988EP0292785A2 Vinyl copolymeres containing grafted polycarbonate chains, their manufacture and use
11/30/1988EP0292772A2 Polyether-polycarbonate diols, their preparation and their use as starting products for polyurethanes
11/30/1988EP0292722A1 Use of mixtures of thermoplastic polycarbonates and copolymers of styrene with acrylonitrile as substrates for optical data memories
11/29/1988US4788276 Isophthalic and terephthalic acids; heat stability
11/29/1988US4788273 Branched polycarbonates containing tetracarboxyfunctional heterocyclic compounds and process for their preparation
11/29/1988US4788263 Aromatic polycarbonate resin blends
11/22/1988US4786710 Branched; impregnated on fibers or mats
11/22/1988US4786707 Branched polycarbonate derived from single-ring aromatic compound
11/15/1988US4785053 Optical resin material having improved birefringence
11/09/1988EP0289826A2 Method for preparing polycarbonates of controlled molecular weight
11/08/1988US4783445 Soluble epoxide/carbon dioxide copolymerization catalysts
11/02/1988EP0288788A2 Preparation of linear polycarbonates from cyclic oligomer compositions using benzyl carbanion-generating catalyst
10/1988
10/26/1988EP0287887A2 Method for preparing spirobiindane polycarbonates, and resulting products and articles
10/20/1988WO1988008127A1 Sensor construction
10/19/1988EP0286877A2 Polycarbonate compositions and process for preparing the same
10/18/1988US4778875 Preparation of linear polycarbonates from cyclic oligomer compositions using benzyl carbanion-generating catalyst
10/18/1988US4778874 Composite produced by impregnating with cyclic carbonate oligomer and polymerizing
10/18/1988CA1243440A1 Process for treating thermoplastic polymers
10/04/1988US4775741 Preparation of resin composition from cyclic polycarbonate oligomers from spirobiindane bisphenol
10/04/1988US4775739 Improved flowability
10/04/1988US4775738 Process for the preparation of polyether-sulphones
09/1988
09/28/1988EP0283838A2 Method for preparing crosslink polyclic polycarbonate oligomer compositions with supression of aqueous emulsion formation
09/27/1988US4774160 Toner compositions with amorphous ternary copolycarbonates
09/21/1988EP0282546A1 Method for making reaction products of phosgene and dihydric phenol.
09/20/1988US4772526 Electrophotographic element
09/20/1988US4772392 Extrusion from mixture of solvent and nonsolvent
09/14/1988EP0282062A1 Plastic optical fiber
09/13/1988CA1242043A1 Polycarbonates having improved hydrolytic stability
09/07/1988WO1988006606A1 Spiro(bis)indane copolyamides and method for their preparation
09/07/1988WO1988006605A1 Macrocyclic oligomers containing spiro(bis)indane moieties
09/07/1988WO1988006604A1 Condensation copolymers containing copolymerized isoquinoline derivative colorants and products therefrom
09/07/1988EP0281002A2 Method of preparing cyclic oligomeric polycarbonates
09/07/1988EP0280856A2 Condensation copolymers containing 2,5-diarylaminoterephthalic acid type colorants and products therefrom
08/1988
08/31/1988EP0280153A2 Process for the preparation of polycarbonate solutions
08/31/1988EP0280067A2 Method for preparing polycarbonate-polyepoxide compositions
08/30/1988US4767877 Nitrogen-containing bisphenol compositions
08/30/1988US4767840 Cyclic monocarbonate bishaloformates, method for their preparation, and uses thereof
08/25/1988WO1988006150A1 Neutralization of polyalkylene carbonate polyols for polyurethane prepolymer synthesis
08/24/1988EP0279287A2 Blends of thermoplastic polycarbonates and of thermoplastic styrol-maleic anhydride copolymers, and their use as carrier for optical memories
08/23/1988US4766199 Engineering thermoplastics
08/17/1988EP0278498A2 Novel polycarbonate resins, process for production of said resins, and compositions containing such resins
08/16/1988US4764566 High strength
08/16/1988US4764331 Large diameter optical disk substrate made of polycarbonate
08/16/1988US4763715 Process for preparing polycarbonate terpolymer foam suitable for lost foam casting
08/09/1988US4762905 Fire repellent
07/1988
07/26/1988US4760117 Method for preparing copolycarbonates from cyclic polycarbonate oligomers
07/13/1988EP0274123A2 Block copolymers based on cyclic carbonates and esters
07/13/1988EP0274092A2 Polycarbonate copolymer and optical disk
07/12/1988US4757150 Polyetherimide bisphenol compositions
07/12/1988CA1239245A1 Thermosetting cyanate resin and the use thereof for the production of composite materials and ipns
07/06/1988EP0273280A2 Condensation polymer containing the residue of a poly-methine compound and shaped articles produced therefrom
07/06/1988EP0273144A2 Cross-linked branched polycarbonate composition
07/06/1988EP0273143A2 Method for polymerizing cyclic polycarbonate oligomers
07/05/1988US4755588 Composition and method for controlling polymerization rate of cyclic polycarbonate oligomer with encapsulated catalyst
07/05/1988US4755586 Method for preparing crosslinkable polycyclic polycarbonate oligomer compositions with suppression of aqueous emulsion formation
07/05/1988CA1238914A1 Cyclic polycarbonate of thiol analog oligomers
06/1988
06/29/1988EP0272692A2 Condensation copolymers containing bis-methine moieties and products therefrom
06/28/1988US4754017 In aprotic solvent with organometallic initiator
06/28/1988US4754001 Thermosetting cyanate resin and the use thereof for the production of composite materials and IPNs
06/28/1988CA1238744A1 Process for treating thermoplastic polymers
06/15/1988EP0270811A2 Process for producing a polycarbonate composition
06/15/1988EP0270809A2 Functionalized thermoplastic polymers, blends prepared therefrom, and methods for preparing blends
06/14/1988US4751283 Composition comprising bicyclic carbonate oligomer and cyclic carbonate oligomer
06/14/1988US4751264 Impact strength
06/07/1988US4749779 Compositions of cyclic oligomers
06/07/1988US4749774 Unsaturated polyesters
06/07/1988US4749773 Condensation polymers containing methine ultraviolet radiation-absorbing residues and shaped articles produced therefrom
06/07/1988US4749726 Internal stabilization of polycarbonate resins by two stage radiation process
05/1988
05/24/1988US4746726 Stabilizers
05/24/1988US4746725 Cyclic polycarbonate-polyepoxide reaction product and method for their preparation
05/18/1988EP0267369A2 Method for converting cyclic polycarbonate oligomer mixtures to linear polycarbonates, and compositions resulting therefrom
05/17/1988US4745173 Condensation copolymers containing 2,5-diarylaminoterephthalic acid type colorants and products therefrom
05/17/1988US4745162 Poly(alkylene carbonate) polyahls having on the average up to one acid-terminal moiety and salts thereof
05/10/1988US4743676 Endcapping with a phenol
05/10/1988US4743630 Poly(ester-ether-carbonate)
04/1988
04/27/1988EP0264885A2 Washing method for a solution dissolving a polycarbonate resin in an organic solvent
04/26/1988US4740583 Method for converting cyclic polycarbonate oligomer mixtures to linear polycarbonate, and composition resulting therefrom
04/26/1988US4740581 Condensation copolymers containing copolymerized isoquinoline derivative colorants and products therefrom
04/20/1988EP0264026A1 Substantially pure spirobiindane bisphenols and method for their preparation
04/19/1988US4739058 Tetra-(hydroxyaryl)-bis-quinoxalines and preparation thereof
04/13/1988EP0263432A1 Method for preparing aromatic bischloroformate compositions and polycarbonates
04/12/1988US4737573 Using phosgene, dihydroxy compound, water and an inert organic liquid at a basic ph, followed by interfacial catalytic polymerization
04/06/1988EP0262695A1 Method of preparing an aromatic polycarbonate
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