Mixed With Ethylenically Unsaturated Reactant Or Polymer Therefrom Patents (Class 525/468)
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Patent number: 5747589Abstract: The present invention provides a process for the production of polycarbonate-polyisobutylene block cocondensates from thermoplastic aromatic polycarbonates and reactive polyisobutylenes in the melt, as well as mixtures of the block cocondensates with non-reactive polyisobutylenes.Type: GrantFiled: March 12, 1997Date of Patent: May 5, 1998Assignee: Bayer AGInventors: Burkhard Kohler, Wolfgang Ebert, Klaus Horn, Richard Weider, Thomas Scholl
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Patent number: 5688896Abstract: The invention pertains to a non-linear optically active (NLO) side chain polycarbonate and to NLO active waveguides containing said polycarbonate. Waveguides containing this NLO polycarbonate have a low loss of signal. Polycarbonates based on bischloroformates of hexafluorobisphenol A, hexafluorotetrabromobisphenol A and bisphenol S or deuterated bisphenol A or sulphonylbiphenol are especially preferred within the framework of the invention: they were found to give an exceptionally low loss of signal. The invention further pertains to cross-linkable and already cross-linked polycarbonates. Especially preferred polycarbonates according to the invention are those where the diol comprises a rigid donor group. These polycarbonates have a high Tg, which renders them thermally stable.Type: GrantFiled: February 21, 1996Date of Patent: November 18, 1997Assignee: Akzo Nobel N.V.Inventors: Tjerk Oedse Boonstra, Ulfert Elle Wiersum
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Patent number: 5674947Abstract: There are herein disclosed a method for preparing a modified resin which comprises thermal/reaction by the use of a norbornenyl group-containing compound typified by norbornenecarboguanamine or its derivative, a method for preparing an epoxy-modified resin which comprises the step of reacting the above-mentioned modified resin and an epoxide, a flame-retarding method, a thermal stabilization method, a compatibilizing method and a surface modification method which comprise utilizing the modified resin, as well as a coating resin composition and an adhesive resin composition containing the modified resin. According to the, preparation methods of the present invention, the deterioration of a material scarcely occurs, and a functional group which is excellent in flame retardancy, thermal stability, compatibility and the like can be introduced to the resins.Type: GrantFiled: August 14, 1995Date of Patent: October 7, 1997Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Tetsuya Oishi, Kazuo Sugazaki, Jin Suzuki
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Patent number: 5618890Abstract: The invention relates to polycarbonates (PC) terminated by allylphenols, preferably eugenol, and subsequently grafted with maleic anhydride (MA) in the melt, to their use as blending partners for polyamides (PA) and to the polycarbonate/polyamide blends.Type: GrantFiled: August 17, 1995Date of Patent: April 8, 1997Assignee: Bayer AktiengesellschaftInventors: Burkhard K ohler, Klaus Horn
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Patent number: 5602201Abstract: Resin composition comprising (A) 1-99 parts by weight of a copolymeric polycarbonate, in which there are structural units represented by the following formulas (Structure 1) and (Structure 2) and the amount of the structural unit of the (Structure 2) is in the range of 2-90 mol % of the total amount of the structural units of the (Structure 1) and (Structure 2), or its mixture with a polycarbonate resin; (B) 1-99 parts by weight of SAN resin; and at the same time, of the total amount of (A) and (B) as 100 parts by weight, (C) 0.5-40 parts by weight of ABS resin and (D) 0.5-40 parts by weight of a rubber complex graft copolymer comprising rubber complex containing polyorganosiloxane and polyalkyl (meth)acrylate with a graft-polymerized vinyl monomer.Type: GrantFiled: January 13, 1995Date of Patent: February 11, 1997Assignee: General Electric CompanyInventors: Tomohide Fujiguchi, Akihiro Saito, Hideyuki Itoi
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Patent number: 5580931Abstract: A method for property modification of bulk polymers, by initially treating a short chain monomeric organic acid, having a carboxylic group (with dissociation constant between 10.sup.-2 to 10.sup.-6 cm.sup.-1, and less than 8 carbons); with a Group IA, IIA or IIB metal, metal oxide, peroxide, hydroxide, or halogens, for forming a metal ligand or complex metal salt of the acid. The bulk polymers are mixed with the complex metal salts and free radicals are introduced into the mixture by means of oxidizing materials, to functionalize the bulk polymer with ionic polymerization sites. A copolymer formation is effected between the monomeric organic metal salt anion and the bulk polymer, as catalyzed by the metal cation, at such sites. The polymerization is a substantially non-cross linked ionic one resulting from the dissociation parameters and the short chain length of the complex metal salt, which is maintained prior to copolymer formation.Type: GrantFiled: March 2, 1994Date of Patent: December 3, 1996Assignee: Nathaniel H. GarfieldInventor: Juan E. Aguirre
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Patent number: 5552224Abstract: Novel carbonate polymer blend compositions and processes for their preparation are disclosed where an amount of a high molecular weight branched carbonate polymer component (HMWB PC) is combined with a second, lower molecular weight polycarbonate. A HMWB PC component is selected which is homogeneously dispersible in a blend with the second component. A preferred aspect of the invention is directed to intermediate compositions and processes for their use where the second PC is combined with a HMWB PC precursor having latent themally reactive moieties which can be activated to produce a desired and controlled level of high molecular weight, branched carbonate polymer component. Arylcyclobutene moleties are found to be preferred latent thermally reactive moleties. The carbonate polymer blends according to the present invention have surprisingly improved combinations of physical properties, thermal stability, color, melt strength, transparency and processability.Type: GrantFiled: November 22, 1993Date of Patent: September 3, 1996Assignee: The Dow Chemical CompanyInventors: Michael K. Laughner, Maurice J. Marks
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Patent number: 5548041Abstract: A polycarbonate is produced by transesterification from a dihydroxy compound such as 2,2-bis(4-hydroxyphenyl)propane and a diester of carbonic acid such as bisphenyl carbonate in a reactor made of stainless steel and treated by electropolishing or acid pickling or buffed on a surface part thereof which contacts the reactants. As the transesterification catalyst, (a) a nitrogen-containing, electron-donating compound and (b) a nitrogen-containing, electron-donating compound and an alkali metal compound or an alkaline earth metal compound are preferably used.Type: GrantFiled: August 29, 1995Date of Patent: August 20, 1996Assignee: Daicel Chemical Industries, Ltd.Inventors: Tsutomu Yamato, Yasuhiro Oshino, Yutaka Fukuda, Tatsuya Kanno, Takaaki Kuwana, Yoshimichi Okano
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Patent number: 5510429Abstract: A method of grafting alkyl (alkyl) acrylate to a polycarbonate at a carbon atom which both before and after grafting has an sp.sup.3 electron configuration, includes the step of contacting a polycarbonate which is in the solid phase with alkyl (alkyl)acrylate monomers in the presence of a suitable free radical initiator at a temperature sufficient to activate the free radical initiator for a time sufficient to attain a desired degree of grafting. The grafting method of the invention allows for the relatively rapid production of polycarbonate-graft-poly(alkyl(alkyl)acrylate) copolymers using conventional polycarbonate polymers which have not been specially modified to facilitate grafting. The resulting graft copolymer of the process generally has an alkyl (alkyl)acrylate content of from about 1 to about 20 percent by weight with the polycarbonate portion of the graft copolymer having a weight-average molecular weight of from about 5,000 to about 200,000.Type: GrantFiled: July 25, 1994Date of Patent: April 23, 1996Assignee: The University of AkronInventors: Sunggyu Lee, Ronald A. Sobocinski
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Patent number: 5496885Abstract: There are disclosed a thermoplastic resin composition which comprises(a) 4 to 95% by weight of a polyphenylene ether,(b) 95 to 4% by weight of a saturated polyester,(c) 0.5 to 40% by weight of an impact modifier and(d) 0.01 to 50% by weight of a compatibilizer and(e) 0.1 to 3 parts by weight of a polycarbonate based on 100 parts by weight of the above (a) to (d) in total; and a process for preparing a thermoplastic resin composition which comprises the steps of melting and kneading(a) 50 to 95% by weight of a polyphenylene ether,(e) 0.Type: GrantFiled: May 27, 1993Date of Patent: March 5, 1996Assignee: Mitsubishi Chemical CorporationInventors: Kiyoji Takagi, Koji Nishida, Tosio Itou
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Patent number: 5491201Abstract: Novel cyclic imino ether compositions containing one or more mesogenic moieties, when polymerized, result in products having improved properties.Type: GrantFiled: February 16, 1995Date of Patent: February 13, 1996Assignee: The Dow Chemical CompanyInventors: Robert E. Hefner, Jr., Jimmy D. Earls
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Patent number: 5489665Abstract: A polycarbonate is produced by transesterification from a dihydroxy compound such as 2,2-bis(4-hydroxyphenyl)propane and a diester of carbonic acid such as bisphenyl carbonate in the presence of a substance which contains iron in an amount of 50% by weight or less and contacts the reactants. Alternatively, a polycarbonate is produced by transesterification from a dihydroxy compound and a diester of carbonic acid in a reactor made of stainless steel and treated by electropolishing or acid pickling or buffed on a surface part thereof which contacts the reactants. As the transesterification catalyst, (a) a nitrogen-containing, electron-donating compound and (b) a nitrogen-containing, electron-donating compound and an alkali metal compound or an alkaline earth metal compound are preferably used.Type: GrantFiled: October 21, 1994Date of Patent: February 6, 1996Assignee: Daicel Chemical Industries, Ltd.Inventors: Tsutomu Yamato, Yasuhiro Oshino, Yutaka Fukuda, Tatsuya Kanno, Takaaki Kuwana, Yoshimichi Okano
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Patent number: 5457174Abstract: A process for preparing a polycarbonate which comprises performing a transesterification and a polycondensation reaction with a diarylcarbonate and dihydroxyaryl compound, in a reaction apparatus composed of stainless steel comprising at least 12% by weight of Ni, and at least 22% by weight of Cr, and having Fe as the remaining main component. A polycarbonate which has a good color, is stable to hydrolysis and resistant to heat-yellowing is the resulting product.Type: GrantFiled: July 21, 1994Date of Patent: October 10, 1995Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Katsushige Hayashi, Mitsuhiko Masumoto, Masayuki Nakajima, Takuya Hasaki, Masahiko Ishikawa, Atsushi Hirashima
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Patent number: 5438108Abstract: A grafted aromatic polycarbonate resin is produced by melt-kneading a graft precursor comprising a mixture of 35 to 95% by weight of aromatic polycarbonate resin particles and 65 to 5% by weight of vinylic copolymer containing active oxygen, the vinylic copolymer being present in the aromatic polycarbonate resin particles, thereby subjecting to grafting reaction of the aromatic polycarbonate resin and the vinylic copolymer, where the grafting reaction can be sufficiently carried out and thus the grafted polycarbonate resin is useful for molding materials for optical disks, optical lenses, etc. a polymer blend-compatible agent, adhesives, paints, etc.Type: GrantFiled: January 25, 1994Date of Patent: August 1, 1995Assignees: Mitsubishi Gas Chemical Company, Inc., NOF CorporationInventors: Toshikazu Umemura, Takayuki Watanabe, Tatsuo Iwai, Motoyuki Sugiura
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Patent number: 5434227Abstract: A polycarbonate is produced by transesterification from a dihydroxy compound such as 2,2-bis(4-hydroxyphenyl)propane and a diester of carbonic acid such as bisphenyl carbonate in the presence of a substance containing iron in an amount of 50% by weight or less to contact the reactants. Also, a polycarbonate is produced by transesterification from a dihydroxy compound and a diester of carbonic acid in a reactor made of stainless steel and treated by electropolishing or acid pickling or buffed on a surface part thereof to contact the reactants. As the transesterification catalyst, (a) a nitrogen-containing, electron-donating compound and (b) a nitrogen-containing, electron-donating compound and an alkali metal compound or an alkaline earth metal compound are preferably used.Type: GrantFiled: March 16, 1992Date of Patent: July 18, 1995Assignee: Daicel Chemical Industries, Ltd.Inventors: Tsutomu Yamato, Yasuhiro Oshino, Yutaka Fukuda, Tatsuya Kanno, Takaaki Kuwana, Yoshimichi Okano
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Patent number: 5426159Abstract: Disclosed is a process for producing a grafted polycarbonate resin for optical use, which comprises adding to an aqueous suspension of an aromatic polycarbonate resin having radical-polymerizable unsaturated terminal group on a molecule wherein the aromatic polycarbonate resin has an average particle diameter of 0.1 to 5 mm and an apparent density of 0.2 to 0.9 g/cm.sup.3, a vinyl monomer and a radical-polymerization initiator, heating the aqueous suspension at a lower temperature by 5.degree. C. to 20.degree. C. than the decomposition temperature for a half-life period of 10 hours of the radical-polymerization initiator, thereby impregnating the polycarbonate resin with the vinyl monomer and the radical-polymerization initiator, then elevating the temperature to the range of from a lower temperature by 50.degree. C. to a higher temperature by 30.degree. C.Type: GrantFiled: July 15, 1993Date of Patent: June 20, 1995Assignee: Mitsubishi Gas Chemical Company, Inc.Inventor: Toshikazu Umemura
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Patent number: 5389713Abstract: Polycarbonate resin compositions methods for their preparation are disclosed. The disclosed compositions are comprised of polycarbonate resins and .alpha.-olefin oligomers and exhibit good mold release and thermal stability while experiencing little discoloration or molecular weight reduction during molding.Type: GrantFiled: March 3, 1993Date of Patent: February 14, 1995Assignee: GE Plastics JapanInventors: Kenichi Ishiwa, Hideyuki Itoi
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Patent number: 5342554Abstract: Vinyl-terminated polyesters and vinyl-terminated aliphatic polycarbonates are described which improve the flexibility and elongation at failure of cured samples of unsaturated polyesters or vinyl ester resins both at room temperature and at high temperatures, and without significant loss of surface quality or other mechanical properties. Further, these polymers do not phase separate from uncured polyester resin/styrene solutions, do not significantly increase the initial viscosity of molding compositions in which they have been incorporated, and do not negate the effect of low shrinkage additives during cure.Type: GrantFiled: January 7, 1993Date of Patent: August 30, 1994Assignee: GenCorp Inc.Inventors: Douglas S. McBain, Kevin P. LaJudice, Earl G. Melby
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Patent number: 5290863Abstract: There are disclosed thermoplastic resin compositions with improved impact strength and other physical properties, specifically compatibilized compositions comprising polyphenylene ethers and thermoplastic polyesters, with the compatibilization being effected through the use of polystyrene-polycarbonate copolymer.Type: GrantFiled: January 21, 1993Date of Patent: March 1, 1994Assignee: General Electric CompanyInventors: Sterling B. Brown, Edward J. Fewkes
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Patent number: 5288801Abstract: A polycarbonate resin composition comprising (a) an aromatic polycarbonate resin, (b) a rubber-polyester block copolymer comprising an aliphatic diene-based rubber having at one or both ends thereof a polyester structural unit formed by ring-opening polymerization of an aliphatic lactone with the aliphatic diene-based rubber, and (c) an inorganic filler.Type: GrantFiled: October 22, 1992Date of Patent: February 22, 1994Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Kazuhiko Ishii, Makoto Mizutani
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Patent number: 5286813Abstract: The present invention discloses a polycarbonate modification method wherein a polycarbonate resin having (a) a carbon-carbon double bond, and (b) at least one group selected from the group consisting of --C(.dbd.O)--Cl, --C(.dbd.O)--Br, --C(.dbd.O)--OH, --OH, --O--C(.dbd.O)--Cl and --O--C(.dbd.O)--Br, is melt-kneaded in the presence of a radical initiator. Polycarbonate resins prepared according to the present method retain the desirable properties associated with polycarbonates while exhibiting decreased surface gloss.Type: GrantFiled: September 18, 1992Date of Patent: February 15, 1994Assignee: GE Plastics Japan, Ltd.Inventor: Masataka Morioka
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Patent number: 5274028Abstract: In an improved method for producing a surface graft of a hydrophilic polymer upon a preformed solid or semi-solid polymer substrate having hydroperoxide groups along its surface, n-vinyl pyrrolidone is utilized as the surface-grafting monomer, the substrate is selected to be insoluble in n-vinyl pyrrolidone, and the polymerization is carried out in aqueous alkaline conditions utilizing a combination of metal salts to provide a variable valence metal ion in a reduced state capable of oxidizing to suppress homopolymerization of the monomer in the solution.When the substrate is at least partially soluble in the n-vinyl pyrrolidone, an ethylenically unsaturated monomer having a higher reactivity with the substrate than n-vinyl pyrrolidone is added to the alkaline polymerization solution as a "seeding" monomer. Addition of the "seeding" monomer results in a surface-grafted copolymer effectively externalized from the substrate.Type: GrantFiled: December 6, 1990Date of Patent: December 28, 1993Assignee: Baxter International Inc.Inventors: William J. Bertrand, Stephen L. Coulter, Cary Reich, Paul DeAntonio
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Patent number: 5247020Abstract: Disclosed is a process for producing a styrene polymer composition, which comprises polymerizing styrene monomer using a catalyst comprising (A) aluminoxane and (B) a compound of the group IV B transition metal in the periodic table, in the presence of rubber-like elastomer.The resin composition obtained thereby is superior in heat resistance, and impact strength, and utilized as the starting material for various moldings.Type: GrantFiled: December 28, 1990Date of Patent: September 21, 1993Assignee: Idemitsu Kosan Co., Ltd.Inventors: Akikazu Nakano, Hideo Teshima, Masahiko Kuramoto
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Patent number: 5239021Abstract: Flame retarded plastic composition are described, comprising a polycarbonate and a flame-retardant additive selected from pentabromobenzyl-monoacrylate, tribromostyrene and tribromophenyl maleimide, and their mixtures. The flame-retardant polycarbonates so obtained retain excellent transparency.Type: GrantFiled: August 18, 1992Date of Patent: August 24, 1993Assignee: Bromine Compounds LimitedInventors: Michael Peled, Meir Manor
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Patent number: 5189114Abstract: There are disclosed thermoplastic resin compositions with improved impact strength and other physical properties, specifically compatibilized compositions comprising polyphenylene ethers and thermoplastic polyesters, with the compatibilization being effected through the use of polystyrene-polycarbonate copolymer.Type: GrantFiled: December 31, 1990Date of Patent: February 23, 1993Assignee: General Electric CompanyInventors: Sterling B. Brown, Edward J. Fewkes, Jr.
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Patent number: 5187256Abstract: A polycarbonate pellet having a size between 200 and 1,500 microns, not inclusive, is produced by extruding molten polycarbonate through a die and cutting such extrudate with a die face cutter.Type: GrantFiled: December 3, 1990Date of Patent: February 16, 1993Assignee: The Dow Chemical CompanyInventor: Richard O. Kirk
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Patent number: 5155205Abstract: New aromatic polycarbonates contain, in their bisphenol moiety, at least in part bisphenols of the type 1,1-bishydroxyphenylhexafluorodichlorocyclopentane, 1,1-bishydroxyphenylheptafluoromonochlorocyclopentane or 1,1-bishydroxyphenyloctafluorocyclopentane.Type: GrantFiled: January 15, 1991Date of Patent: October 13, 1992Assignee: Bayer AktiengesellschaftInventors: Wolfgang Ebert, Michael Negele, Gerhard Fennhoff
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Patent number: 5140066Abstract: The invention relates to poly(meth)acrylates having grafted-on polycarbonate chains, to their production and to their use as modifiers for thermoplastic polycarbonates having improved resistance to gasoline and/or improved impact strength at low temperatures and to their production.Type: GrantFiled: April 3, 1990Date of Patent: August 18, 1992Assignee: Bayer AktiengesellschaftInventors: Ralf Dujardin, Leo Morbitzer, Rolf Dhein, Werner Nouvertne
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Patent number: 5140078Abstract: Bisphenols containing free-radical generating groups, such as bissilylpinacolate groups, are provided. These bisphenols can be used to make free-radical generating polycarbonate macroinitiators having thermally labile groups which can be heated with vinyl monomers, such as styrene to make polycarbonate block copolymers.Type: GrantFiled: September 9, 1991Date of Patent: August 18, 1992Assignee: General Electric CompanyInventors: Gary W. Yeager, James V. Crivello
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Patent number: 5120790Abstract: Blends are formed with numerous commercially available resins and a comb-shaped polymer ("comb" for brevity) of a macromolecular monomer of a polylactone having terminal vinyl unsaturation so long as the polylactone chains are long enough to be compatible with one of the components to be blended. The comb may be formed with any polymerizable olefinically unsaturated monomer, preferably a vinyl, styryl, or acryloyl monomer. The vinyl unsaturation of the "head" of the macromer of polylactone may be acryloyl, styryl or allyl. The comb is made by a low temperature emulsion or suspension polymerization process. The comb, which has a hydrocarbon backbone and pendant polylactone chains, typically has a number average molecular weight of at least 10,000. A blend of first and second resins which are normally incompatible with each other, is also produced using a comb in which the backbone is compatible with one of the resins.Type: GrantFiled: October 28, 1991Date of Patent: June 9, 1992Assignee: The B. F. Goodrich CompanyInventor: Simon H. Yu
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Patent number: 5087524Abstract: A molding composition comprising a polycarbonate resin and plating modifier was found to be suitable for preparing metal coated articles where the metal coating is deposited by an electroless process. The plating modifier in accordance with the invention is at least one member selected from the group consisting of a polyanhydride, and a monovinyl aromatic-acrylonitrile copolymer. An advantageous embodiment of the invention includes incorporating in the molding composition a flame retarding amount of a conventional flame retarding agent for polycarbonate compositions.Type: GrantFiled: May 4, 1990Date of Patent: February 11, 1992Assignee: Mobay CorporationInventors: Sivaram Krishnan, Ronald L. Price, Peter H. C. Shu, Mark W. Witman
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Patent number: 5079310Abstract: Bisphenols containing free-radical generating groups, such as bissilylpinacolate groups, are provided. These bisphenols can be used to make free-radical generating polycarbonate macroinitiators having thermally labile groups which can be heated with vinyl monomers, such as styrene to make polycarbonate block copolymers.Type: GrantFiled: November 27, 1989Date of Patent: January 7, 1992Assignee: General Electric CompanyInventors: Gary W. Yeager, James V. Crivello
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Patent number: 5034472Abstract: Method for functionalizing a thermoplastic aromatic polycarbonate, copoly(ester carbonate), polyarylate, poly(arylene oxide) or polyarylethersulfone by reacting a precursor polymer that contains dicyclopentadiene with maleic anhydride, and the products so formed.Type: GrantFiled: April 5, 1989Date of Patent: July 23, 1991Assignee: General Electric CompanyInventor: Christopher M. Hawkins
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Patent number: 5026792Abstract: The present invention provides a resin composition which is a composition of 30 to 99.5 wt. % of an aromatic polycarbonate and 70 to 0.5 wt. % of a vinylidene fluoride-hexafluoroacetone copolymeric elastomer.This resin composition is excellent in moldability and processability, heat resistance and impact resistance, and useful as an engineering plastic.Type: GrantFiled: March 7, 1990Date of Patent: June 25, 1991Assignee: Teijin Chemicals, Ltd.Inventors: Saburo Akiyama, Naoyuki Murakami, Kazuo Kitamura
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Patent number: 5023299Abstract: 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: GrantFiled: February 1, 1990Date of Patent: June 11, 1991Assignee: Bayer AktiengesellschaftInventors: Kurt P. Meuer, Helmut Waniczek, Gerd Sylvester, Josef Witte
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Patent number: 4959411Abstract: Carboxy-functionalized polycarbonates are prepared by incorporating a carboxylic acid-substituted phenol, preferably t-butyl p-hydroxybenzoate, as a chainstopper in a polycarbonate-forming reaction. The products are capable of forming copolymers with other polymers such as polyamides and functionalized olefin polymers, by generation of a carboxy group which reacts therewith.Type: GrantFiled: December 27, 1988Date of Patent: September 25, 1990Assignee: General Electric CompanyInventors: Ronald J. Gambale, Susan J. Hathaway, Kathryn L. Longley, Timothy J. Ullman
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Patent number: 4933425Abstract: An aromatic polycarbonate containing at least one terminal group represented by the formula ##STR1## wherein R and R' are the same or different and are alkyl, aryl or halogen; a and b are the same or different and are zero or an integer of one to four; W is 0, S, SO, SO.sub.2, CH.sub.2, CHR or CR.sub.2 wherein R is identified above: ##STR2## Preferably a and b are the same or different and are zero or one, more preferably each is zero. W is CH.sub.2, CHR or CR.sub.2.Type: GrantFiled: August 15, 1988Date of Patent: June 12, 1990Assignee: General Electric Co.Inventor: Robert R. Gallucci
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Patent number: 4929672Abstract: 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.Type: GrantFiled: May 4, 1989Date of Patent: May 29, 1990Assignee: The Dow Chemical CompanyInventor: Michael K. Laughner
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Patent number: 4912149Abstract: Polymeric compositions are provided which include blends of polymers of vinyl acetate and polymers of propylene carbonate. These polymer blends exhibit excellent mechanical compatibility and are useful in molding structures, such as films, or in compounded formulations, such as emulsions and adhesives. These blends exhibit enhanced toughness superior to either of the constituent polymers alone.Type: GrantFiled: February 22, 1989Date of Patent: March 27, 1990Assignee: Air Products and Chemicals, Inc.Inventors: Lloyd M. Robeson, Jeffrey A. Kuphal
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Patent number: 4908422Abstract: The invention relates to thermoplastic molding compounds containing(1.) thermoplastic aromatic polycarbonates and/or thermoplastic aromatic polyesters,(2.) graft polymers and, optionally,(2.a) thermoplastic copolymers,which are characterized in that they additionally contain aliphatic polycarbonates having weight average molecular weights Mw (as measured by ultracentrifugation or light scattering) in the range from 15,000 to 500,000.Type: GrantFiled: March 6, 1989Date of Patent: March 13, 1990Assignee: Bayer AktiengesellschaftInventors: Edgar Leitz, Herbert Eichenauer, Karl-Heinz Ott, Thomas Eckel, Horst Peters, Jochen Schoeps
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Patent number: 4906696Abstract: Transparent, thermoplastically processable polymer blends of (A) polycarbonates, especially Bisphenol A polycarbonates, and (B) methyacrylate copolymers are disclosed. They are prepared from 95 to 5 wt. % methyl methacrylate and 5 to 95 wt. % methacrylic esters and optionally 0 to 30 wt. % especially 1 to 25 wt. % of an acrylic ester with carbocyclic groups in the ester group, and which can also contain other polymer building blocks in amounts of 0 to 40 wt. % formed from .alpha.,.beta.-unsaturated monomers.Type: GrantFiled: June 6, 1988Date of Patent: March 6, 1990Assignee: Rohm GmbH Chemische FabrikInventors: Jens-Dieter Fischer, Werner Siol
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Patent number: 4894423Abstract: Environmental stress failure resistant and impact resistant polycarbonates useful for producing molded plastic components are prepared from an aromatic polycarbonate and a copolymer of ethylene and carbon monoxide.Type: GrantFiled: November 7, 1988Date of Patent: January 16, 1990Assignee: The Dow Chemical CompanyInventors: Hani Farah, Chai J. Chou, Stephen M. Hoenig
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Patent number: 4888401Abstract: A resin composition for optics is disclosed, which mainly comprises a graft copolymer comprising a styrene resin and an aromatic polycarbonate each having a specific molecular weight at a specific ratio of molecular weight and weight, said composition having a micro disperse phase of not more than 0.5 .mu.m. The resin composition has a reduced optical strain and an excellent micro disperse phase and is, therefore, suitable for use as optics.Type: GrantFiled: June 6, 1988Date of Patent: December 19, 1989Assignee: Mitsubishi Gas Chemical Co., Ltd.Inventors: Takao Kawaki, Yasuhiko Kijima, Yuh Miyauchi, Eizi Ukita, Toru Nakajima, Mituhiko Masumoto
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Patent number: 4880908Abstract: The invention is a polymeric composition comprising a blend of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon with a polycarbonate.Type: GrantFiled: April 11, 1988Date of Patent: November 14, 1989Assignee: Shell Oil CompanyInventors: Robert G. Lutz, William P. Gergen
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Patent number: 4874816Abstract: The invention relates to a process for the production of vinyl copolymers with grafted-on polycarbonate chains, to the grafted vinyl copolymers obtainable by the process according to the invention, to their use as modifiers for mixtures of thermoplastic polycarbonates and thermoplastic polystyrenes, to such mixtures themselves and to the use of such mixtures as substrates for optical discs.Type: GrantFiled: May 13, 1988Date of Patent: October 17, 1989Assignee: Bayer AktiengesellschaftInventors: Ralf Dujardin, Wolfgang Ebert, Rolf-Volker Meyer, Klaus Berg, Ulrich Grigo, Wolfgang Wehnert
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Patent number: 4870138Abstract: Novel compositions of matter comprising semi-interpenetrating polymer networks resulting from the reaction between a poly(vinyl benzyl ether) of a polyphenol and engineering condensation thermoplastic may be used as components in a laminate when coated on a reinforcement or substrate. The resulting laminates which may be employed in electric circuit boards will possess desirable electrical and thermal properties as exemplified by a high glass transition temperature and a low dielectric constant.Type: GrantFiled: April 16, 1986Date of Patent: September 26, 1989Assignee: Allied-Signal Inc.Inventor: James A. Wrezel
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Patent number: 4857593Abstract: A process for enhancing the fabrication of thermoplastic polymers entailing the addition of from 0.01 to 1 part, per hundred parts of thermoplastic polymer, of a processing aid, said processing aid comprising a processing additive, such as a silicone or a polyol, and a processing adjuvant, such as a phosphate.Type: GrantFiled: March 8, 1988Date of Patent: August 15, 1989Assignee: Union Carbide CorporationInventors: Pak S. Leung, Errol D. Goddard, Fred H. Ancker
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Patent number: 4841001Abstract: Method for functionalizing a thermoplastic aromatic polycarbonate, copoly(ester carbonate), polyarylate, poly(arylene oxide) or polyarylethersulfone by reacting a precursor polymer that contains dicyclopentadiene with maleic anhydride, and the products so formed.Type: GrantFiled: December 16, 1987Date of Patent: June 20, 1989Assignee: General Electric CompanyInventor: Christopher M. Hawkins
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Patent number: 4833203Abstract: A polycarbonate composition comprising (A) 100 parts by weight of a polycarbonate resin and (B) 1 to 80 parts by weight of an isoprene-base graft copolymer, wherein; said isoprene-base graft copolymer (B) is prepared by polymerizing(a) 20 to 100 parts by weight of one or more vinyl monomers selected from the group consisting of acrylic esters, methacrylic esters, aromatic monovinyl compounds, and cyanovinyl compounds, and(b) 0 to 5 parts by weight of a polyfunctional vinyl monomer in the presence of(c) 100 parts by weight of a copolymer having an isoprene content of 5 to 100% by weight and an acrylic ester content of 0 to 95% by weighthas excellent thermal stability, low temperature impact resistance, jet-black colorability, and solvent resistance. Such a polycarbonate composition is suitable as a material for moldings in the fields of automobiles, home electric appliances, etc.Type: GrantFiled: June 28, 1988Date of Patent: May 23, 1989Assignees: Idemitsu Petrochemical Co., Ltd., Nippon Zeon Co., Ltd.Inventors: Hideki Endo, Kazuto Hashimoto, Kohji Kato
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Patent number: 4833201Abstract: The polymerization of acetylene in the presence of polymers using certain nickel catalysts results in polyacetylene-containing polymer products which are readily processed while retaining their electrical properties.Type: GrantFiled: January 12, 1988Date of Patent: May 23, 1989Assignee: Bayer AktiengesellschaftInventors: K. H. Aleksander Ostoja Starzewski, Josef Witte