Abstract: A polycarbonate resin composition which comprises:50-80% by weight of a polycarbonate resin,20-45% by weight of a poly(1,4-butylene terephthalate) resin and5-30% by weight of an impact modifier, based on the resin composition, respectively,the impact modifier being a core-shell polymer comprising a core composed of a cross-linked rubbery polymer of an alkyl acrylate wherein the alkyl has 2-8 carbons and a shell composed of a homopolymer or a copolymer of methyl methacrylate which has a glass transition temperature of not less than 60.degree. C., and the core-shell polymer having an acetone soluble fraction of not more than 3% by weight based on the core-shell polymer.
Abstract: The invention relates to the use of thermoplastic homopolycarbonates of 3,3'-dihydroxydiphenyl ether in quantities of 3% by weight to 30% by weight for modifying filsm of other thermoplastics than the thermoplastic homopolycarbonates of 3,3'-dihydroxydiphenyl ether, to a process for modifying films of these other thermoplastics, to the films obtainable by this process and to mixtures containing the homopolycarbonates mentioned and the other thermoplastics.
Type:
Grant
Filed:
June 26, 1989
Date of Patent:
September 4, 1990
Inventors:
Gunther Weymans, Klaus Berg, Ulrich Grigo, Karsten-Josef Idel, Ludwig Bottenbruch
Abstract: A polycarbonate-epoxy polymer and method of making the same is presented. In accordance with the present invention, epoxide groups of epoxy resins react with in-chain carbonate groups of a polycarbonate in the presence of a catalyst to form a polycarbonate-epoxy polymer. When diepoxides and polycarbonates are reacted, the product produced is a three-dimensional network of chains cross-linked with carbonate groups. The cross-link density is controlled by adjusting the epoxy-carbonate ratio. The preferred catalyst comprises quarternary ammonium salts with tertiary amine and alkoxide catalyst being less preferred.
Abstract: A heat-curable coating material for cathodic electrocoating is water-dilutable on protonation with an acid and contains(A) from 50 to 95% by weight of a polymer, polycondensate or polyadduct containing primary and/or secondary amino groups, as a binder, and(B) from 5 to 50% by weight of a crosslinking agent obtainable by reacting(a) a polyurethane with(b) formaldehyde or a formaldehyde-donating compound and(c) one or more secondary aliphatic amines.
Type:
Grant
Filed:
July 12, 1989
Date of Patent:
July 3, 1990
Assignee:
BASF Lacke+ Farben Aktengesellschaft
Inventors:
Dirk Lawrenz, Hans Schupp, Thomas Schwerzel
Abstract: A composition comprising an admixture of(a) an aromatic polycarbonate of intrinsic viscosity of from about 0.35 to about 0.41 dl/g, measured in methylene chloride at about 25.degree. C., said aromatic polycarbonate chain terminated with an endcapping agent which provides the polycarbonate with improved ductility and higher Tg when compared to a paratertiary butyl phenol encapped polycarbonate of the same intrinsic viscosity;(b) a core/shell copolymer comprising a conjugated diene with a Tg of less than or equal to -10.degree. C. as the core, said core being about 50 to 90 wt.
Type:
Grant
Filed:
December 28, 1988
Date of Patent:
June 5, 1990
Assignee:
General Electric Company
Inventors:
Omar M. Boutni, Linda H. Nelson, Dwight J. Patterson, Charles F. Pratt, Herman B. Savenije
Abstract: A polycarbonate resin of a copolymer of diethyleneglycol bis(allyl carbonate) with one of glycidyl acrylate and glycidyl methacrylate, its homopolymer and its copolymer, and further occasionally a copolymerizable compound can be easily modified with active amine at its surface, and the surface-modified copolymer of diethylene glycol bis(allyl carbonate) with glycidyl acrylate or methacrylate can be easily dyed with acid dye in a sharp color tone and can be used in an optical instrument demanded to have a high vividness of color.
Type:
Grant
Filed:
July 11, 1988
Date of Patent:
May 29, 1990
Assignees:
Nippon Oil and Fats Co., Ltd., PPG Industries, Inc.
Abstract: The present invention relates to poly-(C.sub.2 -C.sub.10 -.alpha.-olefine)-carboxylic acids of Mw (weight average) 2000 to 350,000, to their preparation by oxidative degradation of polyolefines or by reaction of "Living" polyolefines with CO.sub.2, to their conversion into poly-(C.sub.2 -C.sub.10 -.alpha.-olefine)-carbonyl halides and to their use for preparing polyolefine/polycarbonate block copolymers and the block copolymers obtainable by the process according to the invention.
Type:
Grant
Filed:
September 27, 1988
Date of Patent:
May 29, 1990
Assignee:
Bayer Aktiengesellschaft
Inventors:
Kurt P. Meurer, Helmut Waniczek, Gerd Sylvester, Josef Witte
Abstract: This invention relates to mixtures of thermoplastic aromatic poly(ester)carbonates with thermoplastic polyurethanes containing special graft polymers and, optionally, suitable additives, to a process for their production and to the use of the mixtures according to the invention for the production of moldings, particularly by injection molding or extrusion.
Type:
Grant
Filed:
April 4, 1989
Date of Patent:
May 29, 1990
Assignee:
Bayer Aktiengesellschaft
Inventors:
Werner Nouvertne, Franz-Josef Gielen, Peter Tacke, Ulrich Grigo, Bernd Quiring, Christian Lindner
Abstract: Stoving lacquers which are essentially useful in "coil coating" and provide a finish simulating that of a metallic lacquer comprise a stovable colored film-forming binder composition having colorless transparent particles dispersed therein.
Abstract: Impact resistant polycarbonate blends, which may be extruded without pre-drying, are prepared from an aromatic polycarbonate, an aromatic polyester, a carbon monoxide polymer and a polyalkyleneoxide rubber, and optionally, a grafted copolymer or mixture of grafted copolymers.
Abstract: A polycarbonate blend of good impact strength, solvent resistance and weldline properties is prepared by admixing with polycarbonate a grafted olefin/carbon monoxide copolymer and, optionally, a toughening agent such as a rubber.
Abstract: A process for preparing crosslinked poly .beta.-alanine in the form of microspheres comprises (a) polymerizing acrylamide in a tert. butanol/toluene solvent mixture in the presence of a polymerization initiator and an octadecene-maleic anhydride copolymer as a suspension agent; (b) submitting the resulting suspension of poly .beta.-alanine to a crosslinking reaction using a dialdehyde as the crosslinking agent; and (c) isolating the crosslinked poly .beta.-alanine microspheres. These microspheres exhibit a low size dispersity.
Type:
Grant
Filed:
December 13, 1988
Date of Patent:
May 22, 1990
Assignee:
Societe Anonyme dite: L'Oreal
Inventors:
Claudine Lapoiriere, Claude Mahieu, Christos Papantoniou
Abstract: This invention relates to mixtures of at least one elastomer latex with at least one dispersion of an aromatic polycarbonate, aromatic polyester or aromatic polyester carbonate.
Type:
Grant
Filed:
June 20, 1988
Date of Patent:
May 8, 1990
Assignee:
Bayer Aktiengesellschaft
Inventors:
Thomas Scholl, Hermann Perrey, Martin Matner
Abstract: Disclosed are blends of (a) an aromatic brominated polycarbonate; and (b) a polyphthalatecarbonate. Preferably, the blends also contain an amount of a silicone-polyimide. The blends exhibit good flame resistance and low smoke generation.
Abstract: A thermoplastic molding composition comprising 70 to 98 parts of an aromatic polycarbonate having a viscosity number of from 40 to 100 cm.sup.3 /g and 2 to 30 parts of a polyoctenylene or a modified polyoctenylene.
Type:
Grant
Filed:
April 5, 1989
Date of Patent:
May 8, 1990
Assignee:
Huels Aktiengesellschaft
Inventors:
Ralf Schueler, Joachim Muegge, Michael Droescher, Wilfried Bartz, Roland Feinauer
Abstract: Promotors for a crosslinking reaction involved in the curing of a system comprising crosslinkable polymers are bound to polymeric microparticles having a diameter of about 0.01 to 6 microns prepared by polymerizing a mixture of ethylenically unsaturated monomers. The microparticles carrying the crosslinking reaction promotor may be incorporated to coating compositions, printing inks, sealants, adhesives and other polymeric products in place of conventional crosslinking reaction promotors.
Abstract: A process for producing polycarbonate is disclosed, comprising reacting a halogenated bisphenol-containing organic dihydroxy compound and a carbonate-forming derivative in a liquid medium in the presence of pentahalogenophenol as a molecular weight modifier. This polycarbonate is superior in flame retardance, impact resistance and fluidity, and further in transparency.
Abstract: A polyphthalatecarbonate/polycarbonate blend exhibits improved resistance to hazing and yellowing from prolonged exposure to ultraviolet radiation. The blend is useful in the production of transparent, ultraviolet radiation stable sheets and films.
Type:
Grant
Filed:
November 4, 1988
Date of Patent:
April 17, 1990
Assignee:
General Electric Company
Inventors:
Donald C. Clagett, Daniel W. Fox, Sheldon J. Shafer, Paul D. Sybert
Abstract: In a process for partially curing a powdery polyarylene sulfide resin which comprises heating the powdery resin either in the absence or presence of oxygen while agitating so as to attain an increased melt viscosity in a range suitable for further processing or molding of the resin, an improvement comprising that the resin together with an added specific inorganic additive undergoes the partial curing treatment at temperatures in the range of from a temperature just below the melting point of the starting resin down to a temperature lower by 80.degree. C. than said melting point. The additive is selected from the group consisting of silica, hydrophobic silica, talc and calcium carbonate and mixtures thereof.