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