Mixed With O-c(=o)-o-, Hal-c(=o)-o-, Or Hal-c(=o)-hal Containing Reactant Or Polymer Derived Therefrom; Or Wherein Solid Polymer Is Derived From A Hal-c(=o)-hal, O-c(=o)-o-, Or Hal-c(=o)-o-, A Polycarboxylic Acid Or Derivative And A Polyhydroxy Reactant Patents (Class 525/439)
-
Patent number: 5290861Abstract: A thermoplastic resin composition comprising (A) 75 to 99.8% by weight of a rubber-modified styrene thermoplastic resin, (B) 0.1 to 15% by weight of an aromatic polyester having an intrinsic viscosity in the range of 0.2 to 1.5 dl/g, and (C) 0.1 to 10% by weight of an aromatic polycarbonate. The resin composition provides a painted surface with a superior appearance when a paint is applied on its surface, while maintaining its good fluidity, high impact resistance, and excellent molding heat stability. It can be applied with particular advantage to bodies or chassis of automobiles and the like onto which a paint is coated.Type: GrantFiled: November 23, 1992Date of Patent: March 1, 1994Assignee: Japan Synthetic Rubber Co., Ltd.Inventors: Masahiko Noro, Munehiro Mitsui, Kazuyoshi Nakazawa, Tateki Furuyama
-
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
-
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
-
Patent number: 5283295Abstract: Disclosed is a polymer blend having excellent clarity and impact strength which is suitable for use in extrusion blow molding processes comprisinga) about 50-95 wt % of a polyester having repeat units from at least 95 mol % terephthalic acid, at least 90 mol % ethylene glycol and up to 10 mol % 1,4-cyclohexanedimethanol, the polyester having a weight average molecular weight of 75,000-85,000,b) about 40-4 wt % of recycled scrap polyester having repeat units from at least 90 mol % terephthalic acid and at least 90 mol % ethylene glycol and having a molecular weight of about 40,000-55,000, andc) about 1-10 wt % of a polymeric material containing at least 90 wt % polycarbonate and up to 10 wt % polyethylene terephthalate.Type: GrantFiled: June 8, 1992Date of Patent: February 1, 1994Assignee: Eastman Kodak CompanyInventors: Ronald R. Light, James W. Mercer, Jr.
-
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
-
Patent number: 5276107Abstract: A polymer composition for forming in-situ composite molded articles is provided. The polymer composition comprises a polyphenylene sulfide matrix resin, a thermotropic liquid crystal polymer, and a non-crystalline polymer. The polymer composition may be melt injected or melt extruded to form in-situ composite molded articles having improved mechanical properties.Type: GrantFiled: June 1, 1992Date of Patent: January 4, 1994Assignee: Korea Institute of Science and TechnologyInventors: Kwang U. Kim, Byoung C. Kim, Soon M. Hong
-
Patent number: 5276083Abstract: This invention is directed to continuous polyester filaments in tufted form for composing quality carpets having a pleasing appearance. The carpets are formed by use of continuous polyester filaments comprising polyethylene terephthalate resin having at least 85 mol % of ethylene terephthalate. The filament is completed by being placed in a curling stuffing box and applying a flow of heated air.Type: GrantFiled: August 24, 1992Date of Patent: January 4, 1994Assignee: Kabushiki Kaisha ShinkashoInventor: Mitsuru Kawauchi
-
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
-
Patent number: 5262473Abstract: A polymer composition containing a thermotropic liquid crystal polymer, polycarbonate and polyester. The polymer compositions are prepared by a two-step melt processing method which produces a unique microscopic morphology and improved toughness properties over conventional LCP blends.Type: GrantFiled: November 29, 1991Date of Patent: November 16, 1993Assignee: Enichem America Inc.Inventors: Steve Cottis, Hui Chin, Wen-Hann Shiau, David Shopland
-
Patent number: 5260117Abstract: Honeycomb fabricated of non-crosslinked polymer is prepared by impregnating a fiber web with a linear prepolymer which is soluble in an organic solvent, and which is readily converted by thermal curing in the absence of a crosslinking agent to an insoluble form with a glass transition temperature exceeding 200.degree. C., preferably exceeding 250.degree. C. The preferred prepolymer is the product of diaminodiphenylsulfone and trimellitic anhydride, and forms a poly(amide-imide) upon cure. A process for forming the impregnated honeycomb is also disclosed, which involves impregnating ribbons or sheets, forming them into stacks bonded together at node lines, expanding the stacks into honeycomb structures, and heat soaking the expanded structures to cure the resin and stabilize the structure.Type: GrantFiled: March 12, 1991Date of Patent: November 9, 1993Assignee: Hexcel CorporationInventors: Warren D. Myers, Ernest M. Bishop
-
Patent number: 5258461Abstract: Polymer films are formed by electrocodeposition of solutions containing a dispersion of charged particles of a first polymer and charged particles of a second polymer. Microheterogeneous films are obtained having micro-domains of a minor component polymer dispersed in the major component polymer. Processes for preparing dispersions for electrocodeposition are also provided In a first process, two polymers are dissolved in a common solvent and then dispersed as small charged particles in another solvent which is a precipitant for both polymers. In another process, a dispersion of a first polymer is prepared by adding a solution of the first polymer to a dispersant solvent, and then a solution of a second polymer is dispersed in the dispersion of the first polymer. In another process, a solution of the second polymer is added to a dispersion of the first polymer which contains only a single non-solvent for the second polymer.Type: GrantFiled: November 26, 1990Date of Patent: November 2, 1993Assignee: Xerox CorporationInventors: John S. Facci, Ronald E. Jansen, David H. Pan, William G. Herbert, Donald S. Sypula, Joseph Mammino
-
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
-
Patent number: 5252680Abstract: A polymeric blend comprising a polyester and a polycarbonate, wherein:the polyester contains recurring units having the structure ##STR1## and the polycarbonate contains recurring units having the structure ##STR2##Type: GrantFiled: August 22, 1991Date of Patent: October 12, 1993Assignee: Eastman Kodak CompanyInventors: Hsinjin Yang, Daniel Y. Paul
-
Patent number: 5252681Abstract: A polymeric blend comprising a polyester and a polycarbonate, wherein:the polyester contains recurring units having the structure ##STR1## and the polycarbonate contains recurring units having the structure ##STR2##Type: GrantFiled: August 22, 1991Date of Patent: October 12, 1993Assignee: Eastman Kodak CompanyInventors: Hsinjin Yang, Paul D. Yacobuccu
-
Patent number: 5252653Abstract: The invention relates to polymer mixtures which comprise a polyalkylene phthalate and an aromatic polycarbonate and/or a brominated aromatic carbonate oligomer, polymer or copolymer. It has been found that zinc or calcium hydrogen phosphates are good transesterification inhibitors. An important advantage of the said inhibitors is that they do not condense or hardly condense to polyphosphates and that they do not negatively influence the impact strength of the polymer mixture.Type: GrantFiled: November 23, 1992Date of Patent: October 12, 1993Assignee: General Electric CompanyInventor: Johannes van Helmond
-
Patent number: 5248756Abstract: Disclosed is an alternating block copolymer composition useful for enhancing the crystallization of bisphenol-A polycarbonate which comprises the reaction product of a polyoxyalkylene polyamine and poly(ethylene)terephthalate. Also disclosed is a method of synthesizing the alternating block copolymer and a method of using the block copolymer composition in the crystallization of bisphenol-A polycarbonate.Type: GrantFiled: January 22, 1992Date of Patent: September 28, 1993Assignee: Texaco Chemical CompanyInventors: Chih-Chien Hsu, Gerhard K. Guenther, Richele T. Howelton, David E. Bergbreiter, Alan Letton, Pei-Hua Wang
-
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
-
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
-
Patent number: 5239020Abstract: Disclosed is a composition of matter comprising a homogeneous blend of polyester and a polycarbonate of 4,4-isopropylidenediphenol, the composition having a Gardner b value of less than 10 and a Gardner a value of less than 4. The polyester is produced using an organic derivative of tin as catalyst.Type: GrantFiled: November 14, 1991Date of Patent: August 24, 1993Assignee: Eastman Kodak CompanyInventor: John C. Morris
-
Patent number: 5238737Abstract: The present invention is directed to the use of polymer blend films consisting of polycarbonate and polyalkylene terephthalate supports for diagnostic test strips.Type: GrantFiled: June 1, 1992Date of Patent: August 24, 1993Assignee: Miles Inc.Inventors: Claus Burkhardt, Thomas Doege, Karlheinz Hildenbrand, Werner Kroll, Alexander Riebel, Bernhard Schulte, Philip R. Strom-Jensen, Klaus Wehling
-
Patent number: 5236988Abstract: An engineering plastic composition with excellent flowability, heat stability, and desirable mechanical properties is provided. The composition contains an engineering plastic material and an aliphatic polyester.Type: GrantFiled: September 25, 1990Date of Patent: August 17, 1993Assignees: Sekisui Chemical Co., Ltd., Kabushiki Kaisha Sanko Kaihatsu Kagaku KenkyushoInventors: Kazuo Doyama, Makoto Yamaguchi, Makoto Ohsuga, Akihiro Niki, Toranosuke Saito, Hiroki Tsunomachi, Daishiro Kishimoto
-
Patent number: 5229208Abstract: The present invention provides a resin molded body for optical parts, and comprises a solid solution of a polycarbonate and a polyester carbonate.In the resin molded body of the present invention, when the amount incorporated of the polyester carbonate is increased, the light transmission loss is increased, but the distortion temperature is considerably raised and a high heat resistance is obtained.Type: GrantFiled: December 2, 1991Date of Patent: July 20, 1993Assignee: Fujitsu LimitedInventors: Akira Tanaka, Takehisa Takoshima, Shinpei Nagatani, Hisashi Sawada, Eietsu Takahashi
-
Patent number: 5215828Abstract: Curable binders obtained by simultaneous reaction ofA) urethanes or ureas,B) acrylic or methacrylic compounds containing hydroxyl groups,C) paraformaldehyde andD) if appropriate, polyols,wherein, in the case where no polyol D) is also reacted, the reaction is carried out in the presence of an acid ion exchanger, and in the case where a polyol D) is also reacted, the reaction is carried out in the presence of an acid ion exchanger or a strong acid.These binders are suitable as coating compositions which can be cured by electron beams or by UV light.Type: GrantFiled: August 19, 1992Date of Patent: June 1, 1993Assignee: Hoechst AGInventors: Gerhard Brindoepke, Inge Kurth, Michael Schwab, Gerd Walz
-
Patent number: 5207967Abstract: The present invention relates to polyester/polycarbonate blends having improved low temperature impact strength and processability. More particularly, this invention relates to a thermoplastic molding composition containing an aromatic carbonate polymer, a poly(1,4-cyclohexylenedimethylene terephthalate) (PCT) resin, and a copolyester which consists essentially of repeat units from mixtures of isophthalic acid, terephthalic acid and 1,4-cyclohexanedimethanol.Type: GrantFiled: March 2, 1992Date of Patent: May 4, 1993Assignee: Eastman Kodak CompanyInventors: James D. Small, Jr., Spencer A. Gilliam
-
Patent number: 5202385Abstract: The invention relates to polymer mixtures which comprise an aromatic polycarbonate, a polyester, and a thermoplastic elastomer. The polymer mixture comprises a polyester-ester urethane or a polyether imide ester as a thermoplastic elastomer. The polymer mixtures according to the invention have good flow properties.Type: GrantFiled: March 6, 1990Date of Patent: April 13, 1993Assignee: General Electric CompanyInventors: Christian M. E. Bailly, Robertus E. de Jong
-
Patent number: 5202393Abstract: A polymeric blend comprising a polyester and a polycarbonate, wherein: the polyester contains recurring units having the structure ##STR1## and the polycarbonate contains recurring units having the structure ##STR2##Type: GrantFiled: August 22, 1991Date of Patent: April 13, 1993Assignee: Eastman Kodak CompanyInventors: Hsinjin Yang, Paul D. Yacobucci
-
Patent number: 5202392Abstract: A polymeric blend comprising a polyester and a polycarbonate, wherein:the polyester contains recurring units having the structure ##STR1## and the polycarbonate contains recurring units having the structure ##STR2##Type: GrantFiled: August 22, 1991Date of Patent: April 13, 1993Assignee: Eastman Kodak CompanyInventors: Hsinjin Yang, Daniel Y. Paul
-
Patent number: 5196479Abstract: A composition possessing a desirably high balance of resistance to thermal deformation and to chemical solvents, and reduced notch sensitivity, prepared from a polycarbonate having a glass transition temperature in excess of at least 165.degree. C., an aromatic polyester, a polyphenylene ether, and an elastomeric impact modifier.Type: GrantFiled: February 27, 1991Date of Patent: March 23, 1993Assignee: The Dow Chemical CompanyInventors: Michael K. Laughner, Hani Farah
-
Patent number: 5196245Abstract: Thermoplastic articles molded from polycarbonate resin blends which comprise a polycarbonate resin encapped with a monovalent moiety of the formula: ##STR1## wherein R.sub.1 is selected from hydrogen and hydrocarbyl and each R.sub.2 is selected from hydrocarbyl and hydrocarbyloxy exhibit improved color when irradiated with ionizing radiation.Type: GrantFiled: April 1, 1991Date of Patent: March 23, 1993Assignee: General Electric CompanyInventors: James L. DeRudder, Niles R. Rosenquist
-
Patent number: 5196488Abstract: A polymeric blend comprising a polyester and a polycarbonate, wherein:the polyester contains recurring units having the structure ##STR1## and the polycarbonate contains recurring units having the structure ##STR2##Type: GrantFiled: August 22, 1991Date of Patent: March 23, 1993Assignee: Eastman Kodak CompanyInventors: Hsinjin Yang, Daniel Y. Paul
-
Patent number: 5194523Abstract: Disclosed are clear thermoplastic molding compositions comprising an aromatic polycarbonate, a polyester of terephthalic acid and 1,4-cyclohexanedimethanol, and the copolymeric transesterification product of the polycarbonate and polyester.Type: GrantFiled: May 30, 1991Date of Patent: March 16, 1993Assignee: Eastman Kodak CompanyInventors: James D. Small, Jr., Robert W. Seymour, Thomas E. Flora
-
Patent number: 5194521Abstract: A polymeric blend comprising a polyester and a polycarbonate, wherein:the polyester contains recurring units having the structure ##STR1## and the polycarbonate contains recurring units having the structure ##STR2##Type: GrantFiled: August 22, 1991Date of Patent: March 16, 1993Assignee: Eastman Kodak CompanyInventors: Hsinjin Yang, Daniel Y. Paul
-
Patent number: 5194522Abstract: A polymeric blend comprising a polyester and a polycarbonate, wherein:the polyester contains recurring units having the structure ##STR1## and the polycarbonate contains recurring units having the structure ##STR2##Type: GrantFiled: August 22, 1991Date of Patent: March 16, 1993Assignee: Eastman Kodak CompanyInventors: Hsinjin Yang, Paul D. Yacobucci
-
Patent number: 5194520Abstract: A polymeric blend comprising a polyester and a polycarbonate, wherein:the polyester contains recurring units having the structure ##STR1## and the polycarbonate contains recurring units having the structure ##STR2##Type: GrantFiled: August 22, 1991Date of Patent: March 16, 1993Assignee: Eastman Kodak CompanyInventors: Hsinjin Yang, Paul D. Yacobucci
-
Patent number: 5191036Abstract: A thermoplastic resin composition comprising: (A) at least one resin selected from the group consisting of a polyester resin and a polycarbonate resin, and (B) an aromatic polyester-polyorganosiloxane block copolymer, a weight ratio of (A) to (B) (=A/B) being 10/90 to 90/10. With the addition of the copolymer (B), impact strength of the composition can be improved without impairing the properties of the resin (A).Type: GrantFiled: May 31, 1991Date of Patent: March 2, 1993Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Naoki Yamamoto, Hiroshi Mori, Akira Nakata, Misayo Suehiro
-
Patent number: 5189091Abstract: A polycarbonate blend of good impact strength, solvent resistance and weldline properties is prepared by admixing with polycarbonate an aromatic polyester, a grafted olefin/carbon monoxide copolymer and, optionally, an elastomeric toughening agent such as a rubber, and, optionally, a filler.Type: GrantFiled: November 26, 1990Date of Patent: February 23, 1993Assignee: The Dow Chemical CompanyInventor: Michael K. Laughner
-
Patent number: 5187242Abstract: A polycarbonate composition which contains 60-95 parts by weight of a polycarbonate with a terminal hydroxyl group concentration of 5-95 mol % and 40-5 parts by weight of polyester.Type: GrantFiled: December 13, 1990Date of Patent: February 16, 1993Assignee: General Electric CompanyInventors: Takeshi Sakashita, Tomoaki Shimoda, Takashi Nagai, Kotarou Kishimura
-
Patent number: 5187230Abstract: Polymer blends useful as thermoplastic molding resins comprise PC, PETG and sufficient rubber, e.g. nitrile rubber or ethylene-acrylate copolymer rubber, to enhance the moldability of the blend. Preferred blends comprise at least 30% PC, 30% PETG and 5% rubber.Type: GrantFiled: August 7, 1991Date of Patent: February 16, 1993Assignee: Monsanto CompanyInventor: Kishore Udipi
-
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
-
Patent number: 5173543Abstract: In thermoplastic elastomers selected from the group consisting of the thermoplastic polyurethanes, of the polyetheresters and of the polyetheramides which are derived from polyetherpolycarbonatediols as diol components, the polyetherpolycarbonatediols used are reaction products of phosgene, dialkyl carbonates having C.sub.1 -C.sub.4 -alkyl groups or cyclic carbonates having C.sub.2 -C.sub.4 -alkylene bridges or mixtures thereof with mixtures ofa.sub.1) from 10 to 100 mol % of polyoxytetramethylenediol having a number average molecular weight M.sub.n of from 150 to 500 anda.sub.2) from 0 to 90 mol % of polyoxyalkylenediols which differ from a.sub.1) and have C.sub.2 -C.sub.8 -alkylene groups, aliphatic alkanediols of 2 to 14 carbon atoms, alicyclic alkanediols of 3 to 14 carbon atoms or alkylene oxides of 2 or 3 carbon atoms, or mixtures thereof.Type: GrantFiled: February 15, 1991Date of Patent: December 22, 1992Assignee: BASF AktiengesellschaftInventors: Kaspar Bott, Wolfgang Straehle, Ulrich Abel
-
Patent number: 5171830Abstract: A method for producing polyalkylene carbonates is disclosed. The polymers are prepared by reacting a diol having at least four carbons separating the hydroxyl groups with a diester of carbonic acid in the presence of a catalyst selected from tertiary amines, alkylammonium salts, pyridinium salts, and basic ion-exchange resins that contain active alkylammonium or tertiary amino groups.Type: GrantFiled: August 16, 1991Date of Patent: December 15, 1992Assignee: ARCO Chemical Technology, L.P.Inventor: Roger A. Grey
-
Patent number: 5169907Abstract: A block copolymer represented by the formula ##STR1## are formed by contracting an ester group containing poly(aryl ether) composed of the recurring units ##STR2## with a polyarylcarbonate composed of the recurring units ##STR3## in which B, Z, E.sup.5, E.sup.1, E.sup.2 x, y, n and p represent specified groups or valuesunder conditions such that ester/carbonate interchange reactions will occur.Type: GrantFiled: November 14, 1990Date of Patent: December 8, 1992Assignee: Miles Inc.Inventors: Robert J. Kumpf, Dittmar K. Nerger, Rolf Wehrmann, Harald Pielartzik
-
Patent number: 5164458Abstract: High performance engineering polymer (HPEP) compositions are disclosed containing a HPEP and a polymeric polyvalent metal aromatic polycarboxylate where the polymeric carboxylate is dispersible, non-migratable, non-extractable and heat stable at processing temperatures of the HPEP. The compositions offer the physical properties of high mechanical strength, durability, toughness, chemical resistance and high temperature performance, among others. The engineering polymers are wholly aromatic polymers having aromatic rings forming the main chain of the polymer and devoid of methylene groups in the main chain. Polymeric metal carboxylates such as calcium terephthalate are employed as the high temperature additive in an effective amount for extending the engineering polymer while substantially maintaining or improving its engineering properties.Type: GrantFiled: September 28, 1989Date of Patent: November 17, 1992Assignee: Synthetic Products CompanyInventors: Thomas C. Jennings, David M. Tanno
-
Patent number: 5162461Abstract: This invention relates to binary thermoplastic polyblend that comprises a thermoplastic aromatic polycarbonate and a polycaprolactone polyol-based thermoplastic polyurethane (TPU). The polyblends exhibit improved hydrocarbon solvent resistance and melt flow properties.Type: GrantFiled: January 18, 1991Date of Patent: November 10, 1992Assignee: The Dow Chemical CompanyInventors: Richard E. Skochdopole, Dane L. Wright
-
Patent number: 5159028Abstract: The invention describes a novel process for the preparation of polycarbonate and/or polyarylate block copolymers with poly(aryl ethers). The process is comprised of the steps:(a) the reaction of a dihydroxy-terminated poly(aryl ether) oligomer with a high molecular weight polycarbonate, or a high molecular weight polyarylate, or a high molecular weight poly(arylate-carbonate) to yield a block copolymer; followed by(b) the coupling of the material obtained in step (a) to the required molecular weight, using a diaryl ester of carbonic acid or of a dicarboxylic acid.Both steps are performed in the presence of a catalyst. The copolymerizations can be run in bulk under vacuum in a single or twin screw extruder. Using the above conditions high molecular weight, high quality block copolymers having a combination of excellent properties are obtained in a matter of minutes.Type: GrantFiled: May 15, 1991Date of Patent: October 27, 1992Assignee: Amoco CorporationInventors: Markus Matzner, George T. Kwiatkowski, Robert A. Clendinning, Selvaraj Savariar, Mohammad J. El-Hibri, Charles N. Merriam, Robert J. Cotter
-
Patent number: 5153276Abstract: Blended polymer compositions are described which comprise: (A) at least one amorphous polycarbonate; and (B) at least one linear polycarbonate oligomer containing hydroquinone carbonate structural units.The blended polymer compositions having particular application in the preparation of shaped articles for use in environments characterized by the presence of solvents, solvent vapors, and/or potential for fire conditions. Methods for increasing the solvent and flammability resistance of amorphous polycarbonates are also described.Type: GrantFiled: September 7, 1990Date of Patent: October 6, 1992Assignee: General Electric CompanyInventors: Herman O. Krabbenhoft, Eric J. Pearce, Daniel J. Brunelle, David K. Bonauto
-
Patent number: 5145895Abstract: The invention relates to blends of modified polyarylene sulfides (PAS), preferably polyphenylene sulfides (PPS), with polycarbonates.Type: GrantFiled: July 29, 1991Date of Patent: September 8, 1992Assignee: Bayer AktiengesellschaftInventors: Burkhard Kohler, Klaus Reinking
-
Patent number: 5143986Abstract: Mixtures containing aromatic polyether ketones based on diphenols corresponding to formula (I) ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent hydrogen, halogen, C.sub.1-8 alkyl, C.sub.5-6 cycloalkyl, C.sub.6-10 aryl and C.sub.7-12 aralkyl,m is an integer of from 4 to 7,R.sup.3 and R.sup.4 may be individually selected for each X and independently of one another represent hydrogen or C.sub.1-5 alkyl andX represents carbon, with the proviso that, at at least one atom X, R.sup.3 and R.sup.4 are both alkyl,and other organic polymers and films of these polymer mixtures.Type: GrantFiled: October 17, 1989Date of Patent: September 1, 1992Assignee: Bayer AktiengesellschaftInventors: Knud Reuter, Gunter Weymans, Rolf Dhein, Erich Meier
-
Patent number: 5134205Abstract: This invention relates to certain polyamine hydroxyalkyl carbamate monomers, polymers and copolymers thereof and blends of the same with crosslinking film making agents and films thereof deposited on substrates.Type: GrantFiled: March 28, 1989Date of Patent: July 28, 1992Assignee: King IndustriesInventor: Werner J. Blank
-
Patent number: 5116905Abstract: Novel compositions with high impact strength in both thin and thick-walled sections, and good weld line strength at room temperatures are provided in the form of resinous mixtures comprising:(A) an aromatic carbonate polymer resin selected from the group consisting of(i) an aromatic polycarbonate resin,(ii) a poly(ester-carbonate) copolymer resin, and(iii) a mixture of (i) and (ii); and(B) an impact modifier combination therefor comprising(i) a polyester resin selected from the group consisting of(a) a poly(alkyene terephthalate) resin, when (A) is (i) or (iii); and(b) an amorphous copolyester copolymer resin, and(c) a mixture of (a) and (b); and(ii) a diene based, grafted core-shell copolymer.Type: GrantFiled: January 29, 1988Date of Patent: May 26, 1992Assignee: General Electric CompanyInventors: Edward L. Belfoure, Omar M. Boutni