With A -o-c(=o)-o-, -o-c(=o)-hal Or Hal-c(=o)-hal Group-containing Reactant Or Polymer Thereof Patents (Class 525/146)
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Patent number: 5414046Abstract: Novel thermally stable resins comprising halogens and not epoxide termination groups are described. The thermally stable resins may be employed in polymer systems to yield flame retardant polymer compositions.Type: GrantFiled: June 17, 1994Date of Patent: May 9, 1995Assignee: General Electric CompanyInventor: Gary C. Davis
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Patent number: 5408002Abstract: An azlactone-functional thermoplastic composition is disclosed. The composition is a blend of an azlactone-functional composition and a thermoplastic polymer. A method of making azlactone-functional homopolymers by bulk homopolymerization is disclosed, optionally also concurrent or sequential blending of a thermoplastic polymer. A method of blending azlactone-functional compositions and thermoplastic polymers is disclosed. Molded articles and adduct molded articles formed from the thermoplastic composition are disclosed.Type: GrantFiled: September 9, 1993Date of Patent: April 18, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Patrick L. Coleman, Steven M. Heilmann, Steven L. Kangas, Robert H. Menzies, Jerald K. Rasmussen, Richard J. Rolando, Jennifer J. Sahlin, Julie B. Stahl
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Patent number: 5393836Abstract: Thermoplastic molding materials contain, as essential components,A) from 1 to 30% by weight of a polycarbonate,B) from 10 to 50% by weight of a graft polymerC) from 5 to 80% by weight of a thermoplastic copolymer comprisingc.sub.1) from 50 to 85% by weight of styrene or substituted styrenes of the general formula I or of a mixture thereof andc.sub.2) from 15 to 50% by weight of acrylonitrile or methacrylonitrile or of a mixture thereof andD) from 5 to 80% by weight of a thermoplastic copolymer which differs from component C) and comprisesd.sub.1) from 50 to 85% by weight of styrene or substituted styrenes of the general formula I or of a mixture thereof andd.sub.2) from 15 to 50% by weight of acrylonitrile or methacrylonitrile or of a mixture thereof,with the proviso that the amount by weight, based on the total weight of component D), of component d.sub.2) is lower than the amount by weight, based on the total weight of component C), of component c.sub.2).Type: GrantFiled: December 9, 1993Date of Patent: February 28, 1995Assignee: BASF AktiengesellschaftInventors: Norbert Niessner, Norbert Guentherberg
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Patent number: 5391600Abstract: A polycarbonate resin comprising (A) a thermoplastic resin comprising a polycarbonate resin as the main component thereof, (B) inorganic fillers and/or inorganic pigments and (C) an organopolysiloxane having an organoxysilyl group which is bonded to a silicon atom through a divalent hydrocarbon group is provided. The polycarbonate resin shows a lesser degree of molecular weight decrease, has excellent heat stability and moldability, and provides molded articles having excellent appearance, mechanical properties like impact resistance, degree of whiteness and color tone. The polycarbonate resin can be applied to production of various kinds of molded articles, such as molded articles in the field of office automation instruments, electric and electronic products, automobiles, mechanical products, building materials and the like.Type: GrantFiled: October 18, 1993Date of Patent: February 21, 1995Assignees: Idemitsu Petrochemical Co., Ltd., Dow Corning Toray Silicone Company, Ltd.Inventors: Takashi Umeda, Kazuto Hashimoto, Kouji Satou, Haruhiko Furukawa
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Patent number: 5389725Abstract: The thermoplastic resin composition containing a fluorine-containing elastomer, which is produced by incorporating a base-treated fluorine-containing elastomer into a thermoplastic resin and has a base-treated fluorine-containing elastomer content of 0.1 to 50% by weight, the composition being excellent in impact resistance and heat resistance and useful for producing various products in the fields of aviation, machinery, office machines, electricity and electronics.Type: GrantFiled: November 8, 1993Date of Patent: February 14, 1995Assignee: Idemitsu Kosan Co., Ltd.Inventor: Toru Bando
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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: 5352500Abstract: Acrylic polymers having a minimum molecular weight of about 500,000, and preferably of about 1,500,000, are blended at levels of from 1 to 25% with thermoplastic resins to improve the melt rheology of the thermoplastic resins and facilitate blow molding, thermoforming, extrusion and similar processes.Type: GrantFiled: February 5, 1993Date of Patent: October 4, 1994Assignee: Rohm and Haas CompanyInventor: Nazir A. Memon
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Patent number: 5350790Abstract: This invention provides a polycarbonate resin composition for optical use and an optical disc substrate manufactured therefrom. Polycarbonate resin is mixed with at least one kind of carboxylic acid selected from aliphatic carboxylic acids having 1 to 10 carbon atoms in which hydrogen atoms of aliphatic group may be substituted by hydroxyl groups; or aromatic carboxylic acids in which hydrogen atoms of the aromatic ring may be substituted by low alkyl groups, hydroxyl groups, or halogen atoms.The amount of the carboxylic acids is 5 to 1000 ppm based on the polycarbonate resin.Type: GrantFiled: April 1, 1993Date of Patent: September 27, 1994Assignee: Mitsubishi Kasei CorporationInventors: Yoshitomi Urabe, Hironori Hayashida, Yoshiaki Ohtani
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Patent number: 5344879Abstract: A curable composition for paint including(A) 10 to 99 parts by weight of a vinyl polymer having a number average molecular weight of not less than 2,000 and at least one silicon atom to which a hydrolyzable group is bonded at an end of the main chain and/or in a side chain thereof, in one molecule, wherein the main chain is substantially a vinyl polymer chain;(B) 1 to 90 parts by weight of a compound containing a carbonyldioxy group which is at least one of(i) a compound containing a hydrolyzable silyl group, the compound having at least one carbonyldioxy group in one molecule and at least one silicon atom to which a hydrolyzable group is bonded, in one molecule, and(ii) a polycarbonate polyol compound having at least one carbonyldioxy group and at least two hydroxyl groups in one molecule; and(C) 0.001 to 10 parts by weight of a curing catalyst on the basis of 100 parts by weight of the components (A) and (B) in total.Type: GrantFiled: January 15, 1993Date of Patent: September 6, 1994Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Masaharu Inoue, Yoshihiko Okimura, Hirotoshi Kawaguchi, Hisao Furukawa
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Patent number: 5326817Abstract: A thermoplastic resin composition is here provided which contains (I) 99 to 1% by weight of a polyphenylene ether resin alone or a mixture of the polyphenylene ether resin and a styrene polymer, (II) 1 to 99% by weight of at least one kind of resin selected from the group consisting of a polycarbonate resin and polyoxymethylene resin, and (III) 0.1 to 100 parts by weight, based on 100 parts by weight of the resins (I) +(II), of a multi-phase structure thermoplastic resin which is composed of 5 to 95% by weight of an epoxy group-containing olefin copolymer and 95 to 5% by weight of a vinyl polymer or copolymer obtained from at least one kind of vinyl monomer, either of both the components being in the state of a dispersion phase having a particle diameter of 0.001 to 10 .mu.m.A method for preparing the above-mentioned thermoplastic resin composition is also provided here.Type: GrantFiled: March 21, 1989Date of Patent: July 5, 1994Assignees: Nippon Petrochemicals Co. Ltd., Nippon Oil & Fats Co. Ltd.Inventors: Yuichi Orikasa, Suehiro Sakazume
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Patent number: 5321086Abstract: A polycarbonate resin composition which comprises (a) a polycarbonate containing a repeating unit (I) derived from tetrahalogenobisphenol A and a repeating unit (II) derived from bisphenol A and trihalogenophenoxy groups bonded at the terminals, and (b) at least one thermoplastic resin selected from the group consisting of (i) a polyamide resin selected from the group consisting of nylon 6 and nylon 6,6, (ii) a thermoplastic polyester selected from the group consisting of polyethylene terephthalate and polybutylene terephthalate and (iii) a polyolefin. The polycarbonate resin composition has desirable physical properties including desirable mechanical properties, moldability, heat resistance, flame retardance, thermostability, rigidity, impact resistance, solvent resistance, and fluidity, and can be used to make parts for automobiles, home electric appliances, and office automation appliances.Type: GrantFiled: December 1, 1992Date of Patent: June 14, 1994Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Shiro Kozakura, Takashi Komatsu
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Patent number: 5308489Abstract: The invention relates to blends of polyether copolycarbonates and other thermoplastics, to their production and to their use for the production of membranes, more particularly for dialysis.Type: GrantFiled: December 11, 1992Date of Patent: May 3, 1994Assignee: Bayer AktiengesellschaftInventors: Rolf Dhein, Wolfgang Ebert, Herbert Hugl, Holger Ohst
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Patent number: 5302662Abstract: Novel blends have been discovered comprising: (A) a polyamide; (B) a polymer that is miscible with polystrene; and (C) a compatibilizer comprising a copolymer having repeating units derived from an aromatic vinyl compound monomer and repeating units derived from vinylphenol monomers, wherein at least about 50% of said aromatic vinyl compound monomers are styrene monomeric units. The blends show improvements in mechanical properties as compared to similar blends without the compatibilizer.Type: GrantFiled: February 19, 1993Date of Patent: April 12, 1994Assignee: Eastman Kodak CompanyInventors: Christine J. Landry, Dennis J. Massa, Timothy E. Long, Michael R. Landry, David M. Teegarden, Ralph H. Colby
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Patent number: 5302429Abstract: Vinyl aromatic polymers having a minimum molecular weight of about 500,000, and preferably of about 1,500,000, are blended at levels of from about 1 to about 25% with thermoplastic resins to improve the melt rheology of the thermoplastic resins and facilitate blow molding, thermoforming, extrusion and similar processes.Type: GrantFiled: November 21, 1991Date of Patent: April 12, 1994Assignee: Rohm and Haas CompanyInventor: Nazir A. Memon
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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: 5286794Abstract: Bisphenol A polycarbonate containing at least 15 mole % of 2,2-bis-(4-hydroxyphenyl)hexafluoropropane (6F-Bisphenol A) can be blended with polyvinyl chloride (PVC) to form a thermodynamically miscible, transparent, single phase blend at all compositions. Such blends are flame resistant as well as resistant to attack by acids, bases and many organic solvents.Type: GrantFiled: June 1, 1992Date of Patent: February 15, 1994Assignee: Enichem S.p.A.Inventor: Michael A. Drzewinski
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Patent number: 5286790Abstract: Acrylate or methacrylate polymers, or copolymers of acrylates and/or methacrylates with other vinyl monomers, are blended in compositions with poly(phenylene ether), and/or with a poly(phenylene ether) concentrate containing poly(phenylene ether), polystyrene, a vinyl aromatic copolymer, polyamide, polycarbonate, polyester, poly(alkyl acrylate), and/or poly(alkyl methacrylate). The blended compositions may also optionally contain additional vinyl aromatic copolymer as a separate component, impact modifiers, thermoplastic molding materials including polycarbonate, polyester, polystyrene, polyolefin, polyamide, poly(vinyl chloride), polyurethane, polyacetal, and conventional additives such as dyes and pigments.Type: GrantFiled: March 10, 1992Date of Patent: February 15, 1994Assignee: The Dow Chemical CompanyInventor: Michael K. Laughner
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Patent number: 5284694Abstract: An embossable sheet, having at least one stress-whitening layer comprising a blend of:a) at least one heat-stable polymer selected from the group consisting of polypropylene and a polymethyl alkene, said alkene having from about 3 to about 7 carbon atoms,b) at least one other polymeric material immiscible therewith, andc) an effective amount of an antioxidant, said sheet exhibiting stress-whitening which is stable at 136.degree. C. for at least about 7 days.Type: GrantFiled: August 25, 1992Date of Patent: February 8, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Rochelle L. Lockridge, Dennis L. Krueger, Philip G. Martin, Gary W. Schlaeger
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Patent number: 5284914Abstract: A thermoplastic polyester resin composition characterized by comprising30-70% by weight of a polyester resin (A) constituted mainly of a polyalkylene terephthalate,5-35% by weight of a graft polymer (B) obtained by graft-polymerizing at least one selected from the group consisting of an aromatic vinyl monomer and a methacrylate monomer in the presence of a rubbery polymer, and10-45% by weight of a polyphenylene ether resin (C) andresulting from blending these polymers so that the content of said polyester resin (A) may be higher than that of said polyphenylene ether resin (C).Type: GrantFiled: April 26, 1991Date of Patent: February 8, 1994Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Yutaka Toyooka, Masafumi Hongo, Hideyuki Shigemitsu
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Patent number: 5283285Abstract: This invention relates to a blend comprising a polyester, polycarbonate and an amine functinalized elastomer and optionally an effective amount of an effective graft coupling agent.Type: GrantFiled: April 5, 1993Date of Patent: February 1, 1994Assignee: AlliedSignal Inc.Inventors: Murali K. Akkapeddi, Bruce VanBuskirk
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Patent number: 5281669Abstract: Intimate blends of macrocyclic oligomer compositions, such as cyclic polycarbonate or poly(alkylene dicarboxylate) oligomer mixtures, are blended with linear polymers, especially addition polymers. The blends flow easily and are frequently homogeneous. The macrocyclic oligomers therein may be polymerized to produce resin blends having advantageous properties.Type: GrantFiled: April 13, 1992Date of Patent: January 25, 1994Assignee: General Electric CompanyInventors: Roger P. Kambour, Warren L. Nachlis, Eric J. Pearce, Jeffrey D. Carbeck
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Patent number: 5278257Abstract: Compositions containing A) a copolymer based on at least one 1,3-diene and at least one polar, ethylenically unsaturated comonomer and B) a phenol-terminated polyurethane, polyurea or polyurea-urethane of the formula I ##STR1## in which m is 1 or 2, n is 2 to 6, R.sup.1 is the n-valent radical of an elastomeric prepolymer which is soluble or dispersible in epoxide resins, X and Y independently of one another are --O-- or --NR.sup.3 --, it being necessary for one of these groups to be --NR.sup.3 --, R.sup.2 is an m+1-valent radical of a polyphenol or aminophenol after the removal of the phenolic hydroxy group(s) or the amino group or both the amino group and the phenolic hydroxyl group, respectively, and R.sup.3 is hydrogen, C.sub.1 -C.sub.6 alkyl or phenyl, are described.Compounds containing the components A) and B) as well as an epoxide resin C) are also described.The cured products are distinguished by a high peel strength and high resistance to crack propagation.Type: GrantFiled: January 21, 1992Date of Patent: January 11, 1994Assignee: Ciba-Geigy CorporationInventors: Rolf Mulhaupt, Jeremy H. Powell, Christopher S. Adderley, Werner Rufenacht
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Patent number: 5276256Abstract: A molding composition containing, based on the total weight of the composition:A) at least 40% by weight of at least one halogen-free polycarbonate;B) 5-40% by weight of at least one halogen-free graft copolymer composed of;1) 40-80% by weight of an elastomer with a glass transition temperature below 0.degree. C., which elastomer is composed of, at least 50% by weight of a diene or of an at least C.sub.4 -alkyl acrylate, 1-40% by weight of a halogen-free phosphorus compound of the formula ##STR1## 2) 20-60% by weight of a shell composed of, 40-98% by weight of styrene, .alpha.-alkylstyrene, nuclear-substituted styrene and/or C.sub.1 -C.sub.8 -alkyl (meth)acrylate, and 2-60% by weight of (meth)acrylonitrile and/or maleic anhydride;C) 5-40% by weight of a halogen-free thermoplastic copolymer composed of, 50-95% by weight of styrene, .alpha.-alkylstyrene, nuclear-substituted styrene and/or C.sub.1 -C.sub.Type: GrantFiled: September 25, 1992Date of Patent: January 4, 1994Assignee: BASF AktiengesellschaftInventors: Norbert Niessner, Rainer Neumann, Karl Ruppmich, Friedrich Seitz, Doris Zeltner
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Patent number: 5276089Abstract: There is disclosed a blend of certain polyesters and polymers that are miscible with polystyrene, such as polyphenylene oxide. The blend is characterized by the presence of a compatibilizing amount of a copolymer having repeating units derived from an aromatic vinyl compound monomer and a vinylphenol monomer. The polyester is thermoplastic and is characterized in that the diacid component of the polyester includes aromatic groups and the diol component comprises at least about 20 percent by weight of a noncyclic, aliphatic diol.Type: GrantFiled: August 26, 1991Date of Patent: January 4, 1994Assignee: Eastman Kodak CompanyInventors: Ralph H. Colby, Christine J. T. Landry, Michael R. Landry, Timothy E. Long, Dennis J. Massa, David M. Teegarden
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Patent number: 5276078Abstract: Improved thermoplastic resinous blends are disclosed comprising a carbonate polymer; an organophosphorus compound; a fluorinated polymer; and a halogenated diphenol oligocarbonate.Type: GrantFiled: January 13, 1992Date of Patent: January 4, 1994Assignee: The Dow Chemical CompanyInventors: Samuel A. Ogoe, Thoi H. Ho, Robert W. Ranger
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Patent number: 5273685Abstract: A thermoplastic resin composition comprising (a) 100 parts by weight of thermoplastic copolycarbonate comprising 0.1 to 50% by weight of structural unit of the following general formula (1) and 99.9 to 50% by weight of structural unit of the following general formula (2): ##STR1## and (b) 0.1 to 30 parts by weight of electroconductive carbon black can produce a molding product having good mechanical properties and surface smoothness with good moldability.Type: GrantFiled: February 21, 1992Date of Patent: December 28, 1993Assignee: Mitsubishi Gas Chemical Co., Inc.Inventors: Toshiaki Takata, Tadami Kinugawa, Hideo Otaki
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Patent number: 5270386Abstract: A blend of a vinyl aromatic copolymer, and a poly(phenylene ether) concentrate containing poly(phenylene ether), a vinyl aromatic copolymer, polyamide, polycarbonate, polyester, poly(alkyl acrylate), and/or poly(alkyl methacrylate). The blend may optionally contain impact modifiers, thermoplastic molding materials including polyester, polystyrene, polyolefin, polyamide, poly(vinyl chloride), polyurethane, polyacetal, and conventional additives such as dyes and pigments.Type: GrantFiled: March 10, 1992Date of Patent: December 14, 1993Assignee: The Dow Chemical CompanyInventor: Michael K. Laughner
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Patent number: 5268424Abstract: A chlorinated polyvinyl chloride/polycarbonate blend is prepared utilizing a conventional vinyl impact modifier such as methyl methacrylate-butadiene-styrene (MBS) copolymer as a compatibilizing agent. The blend has good thermomechanical properties such as good dimensional stability under heat, good impact resistance, and improved processability. The chlorinated polyvinyl chloride, polycarbonate, and impact modifier are simultaneously mixed or, alternatively, a preblend of the polycarbonate and the conventional impact modifier is made to which the CPVC is subsequently added and blended.Type: GrantFiled: June 1, 1992Date of Patent: December 7, 1993Assignee: The B. F. Goodrich CompanyInventor: Dennis L. Lawson
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Patent number: 5266638Abstract: A thermoplastic molding material which is made up of components A, B, C, and D. Component A comprises 10-90% of the composition and is a copolymer made up of 30-95% styrene; 4-40% (meth)acrylonitrile, methyl methacrylate, or maleic anhydride; 1-30% of a monomer described by formula in the specification, N-vinylimidazole or N-vinylcarbazole; and up to 40% of a copolymerizable ethylenically unsaturated monomer. Component B comprises 10-90% of the composition and is a copolymer made up of 50-99.9% of an alpha-olefin; 0.1-50% of a monomer containing acid groups; and up to 40% of a copolymerizable ethylenically unsaturated monomer. Component C comprises up to 80% of the composition and is a copolymer made up of 50-95% styrene and 5-50% (meth)acrylonitrile, methyl methacrylate or maleic anhydride. Component D comprises up to 80% of the composition and is made up of a polycarbonate. All percentages are by weight.Type: GrantFiled: November 13, 1992Date of Patent: November 30, 1993Assignee: BASF AktiengesellschaftInventors: Norbert Niessner, Klaus Muehlbach, Friedrich Seitz
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Patent number: 5266634Abstract: A resin composition containing a mixture of a polycarbonate resin and a rubber-reinforced styrene base resin which is prepared by polymerizing, in the presence of a rubbery polymer, a monomer mixture of an aromatic vinyl monomer, at least one of cyanated vinyl monomers and alkyl esters of unsaturated carboxylic acids and at least one other vinyl monomer; a polyolefin graft polymer which is prepared by polymerizing, in the presence of a crystalline polyolefin, a monomer of an aromatic vinyl monomer and at least one of cyanated vinyl monomers and alkyl esters of unsaturated carboxylic acids; and optionally a terpolymer of an olefin, an unsaturated dicarboxylic anhydride and an alkyl ester of an unsaturated carboxylic acid or an epoxy group-containing olefin copolymer of an unsaturated epoxy compound, an olefin and optionally an ethylenically unsaturated compound, which composition has good coating properties.Type: GrantFiled: November 20, 1991Date of Patent: November 30, 1993Assignee: Sumitomo Naugatuck Co., Ltd.Inventors: Akitoshi Ito, Yutaka Yoshida
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Patent number: 5264491Abstract: Compatibilizing agents suitable for blending otherwise immiscible polymers comprise a block or graft copolymer in which at least one of the block segments is formed by a living anionic polymerization and thereafter chemically converted to provide a polymer having at least one functional end group. The functional groups of the polymer blocks thus formed are reacted with a functionalized monomer, or an oligomer to provide a second block polymer segment. Compatibilizing agents containing more than two blocks may be formed in similar fashion. The compatibilizing agents are used to provide uniform blends of polar and non-polar polymers having superior uniformity and other physical properties.Type: GrantFiled: August 26, 1992Date of Patent: November 23, 1993Assignee: Edison Polymer Innovation CorporationInventor: Roderic P. Quirk
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Patent number: 5264523Abstract: A uniform mixture of a polytetrafluoroethylene molding powder and an organic filler, which can provide moldings having improved properties without lowering the appearance and mechanical property, is obtained without sticking the filler to the wall of a mixer by mixing the molding powder and the filler in the presence of a silane coupling agent and a polar solvent, or by previously treating the organic filler with the silane coupling agent and mixing the treated filler with the molding powder.Type: GrantFiled: August 1, 1990Date of Patent: November 23, 1993Assignee: Daikin Industries, Ltd.Inventors: Norimasa Honda, Tomohiko Hirata, Hirokazu Yukawa
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Patent number: 5262476Abstract: Blends of polycarbonate and polyester are admixed in compositions with poly(phenylene ether), and/or with a poly(phenylene ether) concentrate containing poly(phenylene ether), polystyrene, a vinyl aromatic copolymer, polyamide, polycarbonate, polyester, poly(alkyl acrylate), and/or poly(alkyl methacrylate). The blended compositions may also optionally contain additional vinyl aromatic copolymer as a separate component, impact modifiers, thermoplastic molding materials including polystyrene, polyolefin, polyamide, poly(vinyl chloride), polyurethane, poly(methyl methacrylate) and polyacetal, and conventional additives such as dyes and pigments.Type: GrantFiled: March 10, 1992Date of Patent: November 16, 1993Assignee: The Dow Chemical CompanyInventor: Michael K. Laughner
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Patent number: 5258432Abstract: A blended composition containing polycarbonate and polyester and/or an acrylate polymer, modified with poly(tetrafluoroethylene), an organophosphorous compound and an aromatic halogenated carbonate oligomer to obtain ignition resistance properties, and, optionally, an elastomeric impact modifier.Type: GrantFiled: March 10, 1992Date of Patent: November 2, 1993Assignee: The Dow Chemical CompanyInventors: Samuel A. Ogoe, Michael K. Laughner, Jack W. Muskopf, Jeffrey E. Lackey
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Patent number: 5256722Abstract: Blends having a high molding fluidity and flowability and high thermoresistance comprising:(a) at least one vinyl-aromatic thermoplastic polymer; and(b) at least one copolyester having a melting point lower than the molding temperature of the thermoplastic polymer (a), and preferably lower than 200.degree. C., a melt viscosity, at 232.degree. C., lower than 50 Pa.S., and obtained from at least one bicarboxylic aromatic acid, at least one aliphatic bicarboxylic acid, and at least one glycol.Type: GrantFiled: August 6, 1992Date of Patent: October 26, 1993Assignee: Montedipe S.r.l.Inventors: Gianfranco Biglione, Gian Claudio Fasulo
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Patent number: 5254614Abstract: This invention provides a polycarbonate resin composition for optical use and an optical disc substrate manufactured therefrom. Polycarbonate resin is mixed with at least one kind of carboxylic acid selected from aliphatic carboxylic acids having 1 to 10 carbon atoms in which hydrogen atoms of aliphatic group may be substituted by hydroxyl groups; or aromatic carboxylic acids in which hydrogen atoms of the aromatic ring may be substituted by low alkyl groups, hydroxyl groups, or halogen atoms.The amount of the carboxylic acids is 5 to 1000 ppm based on the polycarbonate resin.Type: GrantFiled: May 22, 1991Date of Patent: October 19, 1993Assignee: Mitsubishi Kasei CorporationInventors: Yoshitomi Urabe, Hironori Hayashida, Yoshiaki Ohtani
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Patent number: 5250621Abstract: Interpolymers of aromatic polyesters and cross-linked (or partially cross-linked) rubbers and a process for their production in which a mixture of a cross-linked rubber in latex form containing reactive groups and an aqueous solution of an alkali metal or alkaline earth metal diphenolate is reacted with a solution of a dicarboxylic acid halide and/or a carbonyl halide in a water-immiscible solvent so that an aromatic polyester forms at the water/organic solvent phase boundary, which polyester goes over into the organic phase and the rubber at the same time also goes into the organic phase. The interpolymer of rubber and organic polyester thus formed is suitable for the production of moulded articles of all kinds by the methods of thermoplastic shaping such as extrusion and injection moulding.Type: GrantFiled: June 17, 1991Date of Patent: October 5, 1993Assignee: Bayer AktiengesellschaftInventors: Holger Lutjens, Uwe Westeppe, Leo Morbitzer, Karl-Erwin Piejko, Christian Lindner
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Patent number: 5250622Abstract: A process for the preparation of polymer combinations having high rubber contents from A) aromatic polyesters and B) at least partially cross-linked rubbers, in which1) an aqueous rubber latex having a rubber solids content of up to 65% by weight is mixed with an aqueous alkali metal diphenolate solution and a water immiscible organic solvent in a quantity of from 10 to 1000 parts by weight per 100 parts by weight of rubber in the latex,2) the mixture obtained according to 1) is reacted with dicarboxylic acid halides and/or carbonyl halides and3) the polymer combination is recovered.Type: GrantFiled: March 23, 1992Date of Patent: October 5, 1993Assignee: Bayer AktiengesellschaftInventors: Holger Lutjens, Karl-Erwin Piejko, Christian Lindner, Dieter Constant
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Patent number: 5244954Abstract: Moulding thermoplastic compositions, endowed with improved mould release characteristics, comprising:A) an impact resistant vinyl aromatic copolymer consisting of an ethylenically unsaturated nitrile, a vinyl aromatic monomer and a rubber;B) an engineering polymer; andC) an effective amount of a release agent constituted by a synergistic mixture of an ester of a C.sub.16 -C.sub.18 acid with glycerol and an ester of a saturated aliphatic C.sub.10 -C.sub.20 acid with a C.sub.4 -C.sub.6 aliphatic alcohol.The physical-mechanical properties of the compositions at high moulding temperatures can be improved by addition of an effective amount of a bis(alkyl-phenyl)pentaerythritol diphosphite.The compositions can, furthermore, contain in addition a grafted polymer consisting of an elastomeric core having a Tg lower than 10.degree. C. and containing vinyl monomer chains grafted thereon.Type: GrantFiled: December 19, 1991Date of Patent: September 14, 1993Assignee: ECP Enichem Polimeri S.r.l.Inventors: Gian C. Fasulo, Francesco Mori, Dario Ghidoni
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Patent number: 5242981Abstract: The improved resin composition comprises:(A) a melt-workable liquid-crystal polyester resin obtained by polymerizing components selected from the group consisting of a dicarboxylic acid represented by the general formula (a) HOOC--R.sub.1 --COOH, a diol represented by the general formula (b) HO--R.sup.2 --OH, and an oxycarboxylic acid represented by the general formula (c) HO--R.sup.3 --COOH;(B) a polycarbonate resin having a recurring unit represented by the general formula: ##STR1## (C) a polyolefin and/or an olefinic copolymer, and the polyolefin and/or olefinic copolymer (C) is contained in an amount of 1-15 parts by weight per 100 parts by weight of a resin consisting of 95-5 wt % of the liquid-crystal polyester resin (A) and 5-95 wt % of the polycarbonate resin(B). This resin composition is balanced between various physical properties including moldability, heat resistance, impact resistance, dimensional stability and stiffness.Type: GrantFiled: September 3, 1991Date of Patent: September 7, 1993Assignee: Kawasaki Steel CorporationInventors: Mitsuhiko Izumi, Kenji Yoshino, Tadahiro Wakui
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Patent number: 5240978Abstract: A flame resistant molding composition containing a polycarbonate resin, a graft polymer and, as a flame retarding agent a phosphoric acid ester of novolak in combination with an anti drip agent is disclosed. The composition may further contain a thermoplastic copolymer and/or polyalkylene terephthalate. A process for the preparation of the composition is also disclosed.Type: GrantFiled: May 20, 1992Date of Patent: August 31, 1993Assignee: Bayer AktiengesellschaftInventors: Karl Fuhr, Friedemann Muller, Karl-Heinz Ott, Jochen Schoeps, Horst Peters, Werner Ballas
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Patent number: 5241005Abstract: Heat-resistant resin compositions with an excellent pearly luster of this invention consist essentially of polycarbonates prepared from bisphenol A or its derivatives of the following general formula (I) ##STR1## in which R is hydrogen, a halogen, or a lower alkyl group and methyl methacrylate-.alpha.-methylstyrene copolymers with a weight average molecular weight of 30,000 to 200,000 and are useful for molding industrial articles requiring heat resistance.Type: GrantFiled: September 4, 1992Date of Patent: August 31, 1993Assignees: Nippon Steel Chemical Co., Ltd., Nippon Steel CorporationInventors: Toshihiro Yamamoto, Masao Kimura
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Patent number: 5241015Abstract: A compatibilizer polymer specially adapted for compatibilizing blends of aromatic polycarbonates and syndiotactic vinyl aromatic polymers, comprising the reaction product of a C.sub.2-18 organic diamine compound and a polar group modified polyphenylene ether.Type: GrantFiled: April 15, 1992Date of Patent: August 31, 1993Assignee: The Dow Chemical CompanyInventor: Chai-jing Chou
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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: 5219937Abstract: A process of forming block and/or graft copolymers of a polyester and a polyphenylene oxide which comprises heating a mixture of the polyester and the polyphenylene oxide in the presence of a phosphite compound.Type: GrantFiled: June 15, 1992Date of Patent: June 15, 1993Assignee: AlliedSignal Inc.Inventors: Reginald T-H. Tang, Michael C. Bochnik, Frank Mares, Steve Arnold
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Patent number: 5219934Abstract: The invention relates to compatible blends having good surfaces of aromatic polycarbonates or poly(ester) carbonates and polyamides and, optionally, graft polymers and typical additives with addition of polymers containing sulfonamide units as compatibilizers, to a process for the production of these blends and to their use for the production of moldings having good surface properties.Type: GrantFiled: February 24, 1992Date of Patent: June 15, 1993Assignee: Bayer AktiengesellschaftInventors: Georg Heger, Holger Lutjens, Gerd Fengler, Karl-Erwin Piejko, Josef Buekers
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Patent number: 5219936Abstract: A preferred rigid thermoplastic resin composition having high impact strength and resistance to thermal distortion includes a vinyl chloride resin/polycarbonate alloy and at least 3 parts by weight of butadiene-modified acrylic per 100 parts by weight of the alloy. A particularly preferred thermoplastic resin composition includes the alloy and both butadiene-modified acrylic and ethylene-vinyl acetate copolymer.Type: GrantFiled: January 7, 1992Date of Patent: June 15, 1993Assignee: Great Lakes Chemical CorporationInventors: David J. Honkomp, Nicolai A. Favstritsky, Enrico J. Termine
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Patent number: 5218048Abstract: A resin composition comprising (A) a thermoplastic resin, (B) a functional compound having one or more bonds or one or more functional groups selected from the group consisting of organic groups having a non-aromatic carbon-carbon multiple bonds, oxirane groups and substituted carboxyl groups and (C) a diamino compound represented by the following general formula:R.sup.I NH--X--NHR.sup.IIwherein R.sup.I and R.sup.II each represents a hydrogen atom or an alkyl group optionally having one or more inactive substituents, and X represents an alkylene group having 7 to 30 carbon atoms and optionally having one or more inactive substituents.Type: GrantFiled: December 10, 1990Date of Patent: June 8, 1993Assignee: Sumitomo Chemical Company, LimitedInventors: Hiroomi Abe, Kenji Nagaoka, Takashi Sanada
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Patent number: 5216079Abstract: Lubricant systems are provided in which a polyolefin or polyolefin/polytetrafluoroethylene blend functions as a lubricant in a polymer matrix material. The resulting polymer composites containing about 1 to 30 weight percent of the novel lubricant or lubricant blend have greatly improved friction and wear properties, including lower coefficients of friction and increased surface wear resistence. The polyolefin does not remain as discrete, identifiable particles after mixing with the polymer matrix, and has an average molecular weight of less than 500,000.Type: GrantFiled: February 23, 1990Date of Patent: June 1, 1993Assignee: Kawasaki LNP Inc.Inventors: Jane M. Crosby, John E. Theberge
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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.