Ester Derived From A Polyol Patents (Class 525/82)
  • Patent number: 4526927
    Abstract: A thermoplastic molding material contains a styrene polymer, a polyphenylene ether and, as a component for improving the impact strength, a block copolymer obtained by reacting an ethylene copolymer with an active polymeric anion.
    Type: Grant
    Filed: June 30, 1983
    Date of Patent: July 2, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Juergen Hambrecht, Franz Brandstetter, Walter Ziegler, Wolfgang F. Muller, Klaus Bronstert, Adolf Echte
  • Patent number: 4517339
    Abstract: Polymer blends having good mechanical properties and flame retardancy comprise: (1) an interpolymer comprising: (a) crosslinked (meth)acrylate; (b) crosslinked styrene-acrylonitrile polymeric components; (2) a glassy amorphous polymer, e.g., an acrylic resin or a polymer comprising styrene; and (3) a vinyl chloride polymer.
    Type: Grant
    Filed: August 4, 1983
    Date of Patent: May 14, 1985
    Assignee: General Electric Company
    Inventors: Anthony C. Aliberto, Joseph Silberberg
  • Patent number: 4513118
    Abstract: An emulsion polymer comprising a hard nonelastomeric core, an elastomeric intermediate stage produced in the presence of the core and essentially composed of an acrylic ester and a crosslinking monomer which contains three or more acrylic or methacrylic groups in the molecule, and a hard nonelastomeric final stage produced in the presence of the elastomeric intermediate stage and crosslinked therewith, said polymer being useful as an impact strength modifying agent which, in admixture with a thermoplastic polymethyl methacrylate molding compound for example, yields molded articles exhibiting reduced susceptibility to stress whitening and improved impact strength.
    Type: Grant
    Filed: January 3, 1984
    Date of Patent: April 23, 1985
    Assignee: Rohm GmbH
    Inventors: Norbert Suetterlin, Peter J. Arndt, Ernst Heil, Werner Siol, Willi Tilch, Wilhelm Wopker
  • Patent number: 4460742
    Abstract: A delustered thermoplastic resin composition which comprises 100 parts by weight of a thermoplastic resin (B); and 0.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: July 17, 1984
    Assignee: Mitsubishi Rayon Company, Limited
    Inventors: Kazuo Kishida, Akira Hasegawa, Masahiro Sugimori
  • Patent number: 4433103
    Abstract: An impact-resistant methacrylic resin composition comprising a multilayer structure methacrylic resin [II] is provided. The resin [II] is obtained by the following sequential four polymerization stages (i) through (iv):(i) forming 5-50 wt. parts of a hard crosslinked resin (A) containing at least 80 wt. % of methyl methacrylate units;(ii) obtaining 100 wt. parts of a multilayer structure acrylic elastomer [I] by forming on the periphery of resin (A) 95-50 wt. parts of a crosslinked acrylic acid ester copolymer (B) by polymerizing a monomer mixture comprising 69.9-89.9 wt. % of at least one alkyl (C.sub.1-8) acrylate, 10-30 wt. % of styrene or a mixture of styrene and a derivative thereof and 0.1-10 wt. % of ##STR1## (iii) forming on the periphery of elastomer [I] 5-100 wt. parts of a hard crosslinked resin (C) by polymerizing a crosslinkable monomer mixture comprising 80-99.9 wt. % of methyl methacrylate, 0-19.9 wt. % of at least one alkyl (C.sub.1-8) acrylate, 0-10 wt.
    Type: Grant
    Filed: May 26, 1983
    Date of Patent: February 21, 1984
    Assignee: Mitsubishi Rayon Company Ltd.
    Inventors: Kazumasa Kamata, Masamitsu Tateyama
  • Patent number: 4431772
    Abstract: A latex of a highly crosslinked butadiene rubber polymer comprising not less than 50% of butadiene, 1.0 to 10% of a crosslinking agent and a remainder of an ethylenically unsaturated monomer copolymerizable with butadiene, and having a particle size of 600 to 3,000 .ANG. and a degree of swelling of not greater than 7 is obtained by one or more stages of emulsion polymerization. By polymerizing 15 to 30 parts of a monomer mixture of an alkyl methacrylate, an aromatic vinyl monomer, and optionally a crosslinking agent and an unsaturated nitrile in the presence of 85 to 70 parts of the rubber polymer, a graft copolymer is obtained. A composition comprising 2 to 40% of this graft copolymer and 98 to 60% of a vinyl chloride resin possesses high impact resistance coupled with improved stress-whitening resistance, which properties cannot be easily obtained at the same time in conventional resin compositions.
    Type: Grant
    Filed: June 16, 1982
    Date of Patent: February 14, 1984
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takayuki Katto, Masanori Oota, Katsumi Suzuki, Yoshikatsu Satake
  • Patent number: 4419493
    Abstract: Polyacrylate-containing elastomers, having improved tensile strength and hardness upon vulcanization, comprise blends containing about 35 to 65 percent, by weight, of a sulfur-vulcanizable graft elastomer having a major proportion of ethyl acrylate and a minor proportion of an ethylenically unsaturated comonomer which contains a cure-site for sulfur vulcanization, grafted onto an ethylene-vinyl acetate copolymer, and about 65 to 35 percent, by weight, of a sulfur-vulcanizable polyacrylate elastomer.
    Type: Grant
    Filed: October 21, 1982
    Date of Patent: December 6, 1983
    Assignee: American Cyanamid Company
    Inventors: Eugene Y. C. Chang, Rudolf A. Behrens
  • Patent number: 4393169
    Abstract: A moldable resin composition comprising:(A) an aromatic vinyl-type polymer;(B) a polycarbonate; and(C) a three-stage polymerization product produced by three-stage emulsion polymerizations of an aromatic vinyl-type monomer, butadiene, alkyl methacrylate, etc.
    Type: Grant
    Filed: November 12, 1981
    Date of Patent: July 12, 1983
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Takeshi Moriwaki, Shinji Tokuhara
  • Patent number: 4393172
    Abstract: A particulate graft polymer comprising (a) a core formed by a crosslinked homopolymer of a conjugated diene or a copolymer thereof with up to 10% by weight of styrene or acrylonitrile; (b) a first shell formed by a crosslinked homopolymer of an acrylic acid alkyl ester or a copolymer thereof with up to 30% by weight of vinyl monomers; (c) a second shell formed by a polymer of resin-forming monomers, a process for manufacturing these graft polymers by means of a multi-stage emulsion polymerization, and their application as molding compositions, optionally together with rigid thermoplastic resins.
    Type: Grant
    Filed: October 8, 1981
    Date of Patent: July 12, 1983
    Assignee: Bayer Aktiengesellschaft
    Inventors: Christian Lindner, Karl-Heinz Ott, Alfred Pischtschan
  • Patent number: 4391948
    Abstract: ASA graft copolymers prepared by an emulsion/suspension process are good flow and impact modifiers for PVC. Blends with PVC exhibit excellent physical properties and considerably better melt flow than PVC blends with conventional impact modifiers.
    Type: Grant
    Filed: June 25, 1982
    Date of Patent: July 5, 1983
    Assignee: Borg-Warner Chemicals, Inc.
    Inventors: John C. Falk, Mike S. D. Juang
  • Patent number: 4387138
    Abstract: A four composition acrylate particle optimizes four sequence formulations: (1) beginning with a cross-linked elastomer core upon which (2) a successive layer of a principal quantity of cross-linked elastomer, which includes a graft-linking component, is polymerized, which in turn is (3) protectively encapsulated by a successively polymerized shell, which also includes a graft-linking component, and in turn is coated by (4) a final transition coating. The particle is chemically bonded into a unit and provides a radially graduated transition between the significantly different properties of the principal elastomer in the particle and the transition coating which is adapted in composition to a matrix system with which the particles may be blended.
    Type: Grant
    Filed: April 2, 1982
    Date of Patent: June 7, 1983
    Assignee: Plaskolite, Inc.
    Inventor: Warren H. Gift
  • Patent number: 4384077
    Abstract: A process for the production of a moldable thermoplastic having enhanced resistance to impact, and the resulting product, is disclosed. A cross-linked bulk cast elastomer including a graft-linking agent is produced and is then finely divided and compounded with a catalyzed polymerizing monomer mixture, which may also include a minor proportion of a graft-linking co-monomer. Graft-linking of the elastomer to the resulting polymer occurs in situ; and the mass of the elastomer graft-linked to the polymerizing monomer is then compounded with a moldable matrix polymer and the compounded blend is then extruded through a die.
    Type: Grant
    Filed: September 11, 1981
    Date of Patent: May 17, 1983
    Assignee: Plaskolite, Inc.
    Inventor: Warren H. Gift
  • Patent number: 4371663
    Abstract: Several important features and characteristics, particularly and pronouncedly environmental stress crack resistance (i.e., "ESCR") as well as other desirable physical properties of blends or intimate admixtures, known as "polyblends" and usually made by melt-blending, of various styrene polymers (i.e., "SP's"), notably homopolystyrene (i.e., "PS"), and thermoplastic elastomers (i.e., "TE's") are significantly and in emphasized measure enhanced by thorough incorporation in (and simultaneous or subsequent heat action-initiating and crosslink-effecting of) the SP/TE polyblend in low level concentration(s) of a thermally-activatable, organic peroxide in combination with any one (or even a mixture) of an optimizing cross-linking supplement provided in effectively reactive amounts of, for illustration, either a styrene (or the like alkenyl aromatic) monomer or a reagent that is reactive towards alkenes (such as certain dithiols, amino-derivatives, etc.
    Type: Grant
    Filed: November 30, 1979
    Date of Patent: February 1, 1983
    Assignee: The Dow Chemical Company
    Inventor: Robert J. Russell
  • Patent number: 4362845
    Abstract: A composition with high impact resistance and little fish eyes content, comprising 97 to 60 parts by weight of a polyvinyl chloride-base resin and 3 to 40 parts by weight of a graft copolymer obtained by the three-stage graft-polymerization of 65 to 25 parts by weight of a monomer combination (B) comprising 12 to 57% by weight of methyl methacrylate, 1 to 24% by weight of at least one of alkyl acrylates having a C.sub.
    Type: Grant
    Filed: December 9, 1981
    Date of Patent: December 7, 1982
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Kazumasa Kamata, Kazuo Kishida, Kazuo Ueda, Norihisa Osaka
  • Patent number: 4352910
    Abstract: As an impact modifier copolymer to be blended with a vinyl chloride resin, a multilayer copolymer comprising a hard core polymer containing a relatively small quantity of a conjugated diene, a rubbery inner layer polymer containing a relatively large quantity of a conjugated diene, and an outer layer polymer comprising, for example, a copolymer of styrene and methyl methacrylate which is compatible with a vinyl chloride resin is used, whereby a vinyl chloride resin composition well balanced between impact strength and anti-stress-whitening property can be obtained.
    Type: Grant
    Filed: October 20, 1981
    Date of Patent: October 5, 1982
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takayuki Katto, Zenya Shiiki
  • Patent number: 4351921
    Abstract: A resin composition for use in uncoated exterior materials markedly excellent in appearance and having high impact resistance and weather resistance wherein 10-70% by weight of a graft copolymer (I) having a high rubber content, 90-30% by weight of a rigid thermoplastic resin (II) comprising 10-90% by weight of at least one aromatic vinyl monomer and 90-10% by weight of at least one ethylenic unsaturated monomer having the following general formula:CH.sub.2 =CRXwherein R represents hydrogen or CH.sub.3 group and X represents CN or COOR.sub.1 group (R.sub.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: September 28, 1982
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Kazuo Kishida, Akira Hasegawa, Yasunori Kawachi
  • Patent number: 4341883
    Abstract: A four composition particulate additive for blending with a moldable acrylic matrix resin is described. The particulate additive optimizes four sequenced formulations: (1) beginning with a cross-linked elastomer core upon which (2) a successive layer of the principal quantity of cross-linked elastomer, which includes a graft-linking component, is polymerized, which in turn is (3) protectively encapsulated by a successively polymerized thermoplastic shell, which also includes a graft-linking component, and in turn is coated by (4) a final thermoplastic transition coating which is compatible with the matrix resin. The particle is chemically bonded into a unit and provides a graduated transition between the significantly different properties of the principal elastomer in the particle and the matrix resin with which the particles are blended. The blends produced are particularly useful in glazing and the production of sanitary-ware and other products in which impact resistance is a desired quality.
    Type: Grant
    Filed: October 29, 1980
    Date of Patent: July 27, 1982
    Assignee: Plaskolite, Inc.
    Inventor: Warren H. Gift
  • Patent number: 4337324
    Abstract: A monomer mixture comprising .alpha.-methylstyrene or 2-isopropenylnaphthalene, methyl methacrylate, and acrylonitrile is polymerized in the presence of a crosslinked polymer obtained by copolymerizing a monofunctional monomer such as .alpha.-methylstyrene with a small quantity of a polyfunctional monomer such as divinylbenzene to obtain a copolymer (C). A vinyl chloride resin composition formulated by blending the copolymer (C) thus obtained with a vinyl chloride resin and an impact strength modifier resin in a specific proportion possesses improved thermal deformation resistance and impact strength while retaining processability comparable to that of the vinyl chloride resin mixed with the impact strength modifier resin.
    Type: Grant
    Filed: January 19, 1981
    Date of Patent: June 29, 1982
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Haruhiko Yusa, Yo Iizuka, Humio Akutsu
  • Patent number: 4315081
    Abstract: A graft copolymer is obtained by graft-polymerizing an ethylenically unsaturated monomer onto a rubber trunk polymer which is a copolymer of a polyalkylene oxide monomer comprising 4 to 500 alkylene oxide groups together with an ethylenic unsaturation, and a conjugated diene and/or an alkyl acrylate. By adding an anionic surfactant to a base resin which comprises this graft copolymer alone or a mixture of this graft copolymer and another thermoplastic resin, an antistatic resin composition can be obtained. The resin composition thus obtained possesses excellent and permanent antistatic property that is not lowered by washing or wiping as is the case with conventional antistatic resins comprising an antistatic agent.
    Type: Grant
    Filed: February 18, 1981
    Date of Patent: February 9, 1982
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Akio Kobayashi, Takayuki Katto
  • Patent number: 4230832
    Abstract: Impact modified polyvinyl chloride is prepared by suspension polymerizing vinyl chloride in the presence of a dual catalyst system of a monomer soluble catalyst and a water soluble catalyst to form suspension polymer particles having irregular and porous surfaces, and then polymerizing, in the presence of the porous particles, monomers for forming gelled rubber-containing interpolymer particles having a Tg of less than 25.degree. C. No emulsification system is required for the rubber interpolymerization. Rubber-containing interpolymer particles in the order of 1 micron or less are formed on the surface of the suspension polyvinyl chloride particle. The process can be conducted in one reaction vessel and product contamination is reduced. The product can be used alone or blended with other thermoplastic polymers, such as polyvinyl chloride, to increase the impact strength thereof.
    Type: Grant
    Filed: December 2, 1975
    Date of Patent: October 28, 1980
    Assignee: Stauffer Chemical Company
    Inventor: Chung H. Wei
  • Patent number: 4229549
    Abstract: An alkyl acrylate copolymer comprises 60 to 99.5 wt. % of a C.sub.2 -C.sub.12 alkyl acrylate component, 0.1 to 10 wt. % of a polyfunctional monomer component having one or more conjugated double bond and one or more non-conjugated double bond and 0 to 35 wt. % of a comonomer component. A thermoplastic resin composition comprises 97 to 70 wt. parts of a rigid thermoplastic resin and 3 to 30 wt. parts of the alkyl acrylate copolymer.
    Type: Grant
    Filed: March 22, 1978
    Date of Patent: October 21, 1980
    Assignee: Kureha Kagaku Kogyo Kabushiki Kaisha
    Inventors: Seiji Usami, Masanori Oota, Hitoshi Takita, Hideyuki Hashizume
  • Patent number: 4225682
    Abstract: Elemental sulfur modified polychloroprene rubbers having improved Mooney viscosity stability are prepared by blending a sol and a gel in a weight ratio of sol:gel of from 98:2 to 60:40 based on solids, wherein the gel contains 0.5 to 5 weight percent of a cross-linking agent comonomer, a trihydric ester of the general formula ##STR1## wherein x is 0 or an integer of from 1 to 4 and is preferably 0; y is 0 or an integer of from 1 to 4 and preferably 1; R.sub.1, R.sub.2 and R.sub.3 represent hydrogen or an alkyl radical with from 1 to 4 carbon atoms and is preferably CH.sub.3.
    Type: Grant
    Filed: May 22, 1978
    Date of Patent: September 30, 1980
    Assignee: Denka Chemical Corporation
    Inventor: Hubert R. O'Neal
  • Patent number: 4213891
    Abstract: A plastic composition which emits a reduced amount of smoke when heated to flame temperature is thermoformable and high impact resistant is made by blending chlorinated polyvinyl chloride, a mixture of chlorinated polyethylenes, an alkyl acrylate polyvinyl chloride copolymer, and a mixture of a tin process aid and heat stabilizer. The plastic has application in thermoformed, high impact trim parts in aircraft and mass transit vehicles. The reduced amount of smoke emitted when the plastic reaches high temperature aids occupants of a plane or mass transit vehicle to visually find the high temperature source and/or to find their way to an exit when a fire, electrical short circuit or other high temperature condition occurs.
    Type: Grant
    Filed: December 18, 1978
    Date of Patent: July 22, 1980
    Assignee: The General Tire & Rubber Company
    Inventor: George H. Wear
  • Patent number: 4174335
    Abstract: An aqueous dispersion of an olefinic resin composition having improved properties which comprises mixing an olefinic resin composition comprising (a) 50 to 99% by weight of a carboxyl-free olefinic resin having an intrinsic viscosity of 0.1 to 5 and (b) 1 to 50% by weight of a carboxyl-containing modified olefinic resin having an intrinsic viscosity of 0.04 to 1 and an acid number of 30 to 150, the amount of each resin being based on the total amount of resins (a) and (b), which has been melted by heating to a temperature above the melting point, whichever is higher, of the resins, with an aqueous medium heated to a temperature of 140 to 300.degree. C. in the presence of at least 0.2 chemical equivalent, to the carboxyl groups of resin (b), of a base.
    Type: Grant
    Filed: July 20, 1976
    Date of Patent: November 13, 1979
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Akio Ohdaira, Toru Tomoshige, Kinich Onodera
  • Patent number: 4168285
    Abstract: A blend of a vinyl chloride polymer, and a crosslinked (meth)acrylate/crosslinked styrene-acrylonitrile/uncrosslinked styrene-acrylonitrile impact modifier is disclosed. The presence of the impact modifier gives the blend improved impact resistance as compared to the vinyl chloride polymer alone. The impact modifier also functions as a heat distortion temperature improver and process aid for the vinyl chloride polymer.
    Type: Grant
    Filed: May 22, 1978
    Date of Patent: September 18, 1979
    Assignee: Stauffer Chemical Company
    Inventor: Michael J. Turczyk