Contains Two Or More Graft Or Graft-type Copolymers Or A Graft Or A Graft Type Copolymer And At Least One Block Or Block-type Copolymer Patents (Class 525/71)
  • Patent number: 6821635
    Abstract: The present invention is a blend of a monovinylidene aromatic polymer, a rubber modified monovinylidene aromatic polymer, and a monovinyl aromatic-conjugated diene copolymer, which can be used to produce cost effective, transparent packaging materials with a good toughness, which materials can be produced using conventional thermoforming equipment. The blend comprises: a) from 49 to 70 weight percent based on the total weight of the blend, of a monovinylidene aromatic polymer having a weight average molecular weight (Mw) of from 210,000 to 400,000 and a melt flow of less than 12.0 g/10 min.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: November 23, 2004
    Assignee: Dow Global Technologoies Inc.
    Inventors: John L. Sugden, Phillip A. Wagner
  • Patent number: 6822045
    Abstract: A rubber-modified resin obtained by conducting polymerization of a vinyl monomer in the presence of a mixed rubber latex of a silicone rubber latex (A) and an acrylic rubber latex (B), during which polymer particles are coagglomerated to enhance the particle size. The rubber-modified resin is useful as impact modifier and provides thermoplastic resin compositions having an excellent impact resistance by the incorporation thereof into thermoplastic resins.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: November 23, 2004
    Assignee: Kaneka Corporation
    Inventors: Nobuo Miyatake, Akira Takaki
  • Patent number: 6815500
    Abstract: The invention concerns a method for preparing a composition comprising a vinylaromatic polymer enclosing rubber nodules. The invention is characterised in that it includes a step for polymerising at least one vinylaromatic monomer in the presence of rubber, a polymerisation initiator and a stable free radical, said step being such that [FSFR×(SFR)]: [FAMO×(AMO)] range from 0.05 to 1, FFSR and FAMO representing the functionality of the stable free radical and the initiator respectively and (SFR) and (AMO) representing the molar quantities of the stable free radical and the initiator respectively, The final composition is particularly resistant to shock and/or shiny.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: November 9, 2004
    Assignee: Atofina
    Inventor: Jean-Marc Boutillier
  • Patent number: 6812284
    Abstract: Obtention of the amorphous polyester resin compositions having improved impact resistance, by using the core-shell impact resistance improving agents which comprises: (A) from 40 to 90 parts by weight of a core made of a butadiene-based copolymer; (B) from 5 to 40 parts by weight of an inner layer shell obtained by polymerizing a monomer mixture containing a (meth) acrylate monomer having hydroxyl or alkoxy group; and (C) from 5 to 20 parts by weight of an outer layer shell obtained by polymerizing a monomer mixture containing an aromatic vinyl monomer.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: November 2, 2004
    Assignee: Kaneka Corporation
    Inventors: Hisashi Onuma, Hideki Kawai, Mamoru Kadokura
  • Patent number: 6812283
    Abstract: A process for the agglomeration of at least one rubber (A), dispersed in an aqueous phase, by the addition of a dispersion of at least one agglomerating polymer (B) in aqueous phase, in which the agglomerating polymer B used is one containing substantially no free acid groups and the agglomeration is carried out in the presence of at least one basic electrolyte.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: November 2, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Wil Duijzings, Sabine Oepen, Norbert Niessner, Michael Breulmann, Hardy Korb
  • Patent number: 6797784
    Abstract: The invention relates to homopolymers and/or copolymers containing <100 ppm coarse particles with a particle diameter of between 200 and 500 &mgr;m, to thermoplastic moulding materials containing said homopolymtrs and/or copolymers, to the use of the homopolymers and/or copolymers and moulding materials for the production of moulded parts and to the moulded parts themselves.
    Type: Grant
    Filed: May 3, 2001
    Date of Patent: September 28, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Zobel, Dieter Wittmann, Herbert Eichenauer, Alfred Eitel, Thomas Eckel, Bernd Keller, Hans-Bernhard Hauertmann, Dorothy Rose
  • Patent number: 6790908
    Abstract: The invention relates to a block copolymer and more especially to a thermoplastic elastomer block copolymer. The block copolymer is a diblock (block A)-(bloc B) copolymer, a triblock (block A)-(block B)-(block A), or a triblock (block A)-(block B)-(block C) copolymer, wherein block A is a stiff block, block B is a soft block, and block C is a stiff block. Block A or Block B comprises repetitive units deriving from segregation monomers.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: September 14, 2004
    Assignee: Rhodia Inc.
    Inventors: Denis Bendejacq, Mathieu Joanicot, Gilda Lizarraga, Virginie Ponsinet
  • Patent number: 6784246
    Abstract: Disclosed are compositions and processes for preparing polymeric materials having polymerizable units derived from at least one C8 to C30 alkyl (meth)acrylate monomer, and at least one chain branching unit. The presence of the chain branching unit suprisingly results in the polymeric composition having non-gelled polymer chains. The polymeric compositions are useful as additives for improving the melt strength of thermoplastic resins.
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: August 31, 2004
    Assignee: Rohm and Haas Company
    Inventors: Carlos Alfonso Cruz, Eugene Patrick Dougherty
  • Publication number: 20040167279
    Abstract: A process for increasing the stress-cracking resistance of polystyrene molding compositions, stress-cracking-resistant, glossy polystyrene molding compositions, composite layered sheets or composite layered films with an outer layer of this type, and also processes for producing moldings for refrigeration equipment.
    Type: Application
    Filed: January 20, 2004
    Publication date: August 26, 2004
    Inventors: Daniel Wagner, Peter Weinkotz, Herbert Morgenstern, Hans-Jurgen Renner
  • Patent number: 6774182
    Abstract: The present invention relates to a process for preparing a heat-resistant thermoplastic resin, especially to a process for preparing a heat-resistant thermoplastic resin having superior heat-stability prepared by mixing a graft ABS polymer and a heat-resistant copolymer. The heat resistant thermoplastic resin prepared by the process of the present invention not only has superior heat-resistant properties, impact resistant properties, and workability, but also has superior heat-stability.
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: August 10, 2004
    Assignee: LG Chemical Co., Ltd.
    Inventors: Keun-Hoon Yoo, Dong-Sung Kim, Chan-Hong Lee
  • Patent number: 6767964
    Abstract: A thermoplastic molding composition that features constancy of properties, especially toughness and processability is disclosed. The composition contains a first graft rubber polymer that is a product of emulsion polymerisation of styrene and acrylonitrile in the presence of a butadiene polymer latex (A) with a mean particle diameter d50 of 80 to 220 nm, a second graft rubber polymer obtained by emulsion polymerisation of styrene and acrylonitrile in the presence of a butadiene polymer latex (B) with a mean particle diameter d50 of 340 to 480 nm, and a rubber-free copolymer of styrene and acrylonitrile. Importantly, the butadiene polymer latex (A) is the product of seed polymerization using a seed latex with a mean particle diameter of 10 to 100 nm, and the butadiene polymer latex (B) is the product of seed polymerisation using the butadiene polymer latex (A) as seed latex.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: July 27, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Herbert Eichenauer, Adolf Schmidt, Ulrich Jansen
  • Patent number: 6767962
    Abstract: A thermoplastic molding composition that contains a plurality of graft rubbers is disclosed. A first graft rubber is a product of emulsion polymerization of a mixture containing styrene and acrylonitrile in the presence of butadiene polymer latex (A) having an average particle diameter (d50) of 80 to 220 nm. An additional graft rubber is a product of emulsion polymerization of a mixture containing styrene and acrylonitrile in the presence of butadiene polymer latex (B) having an average particle diameter (d50) of 350 to 650 nm. The butadiene polymer latex (A) is the product of seed polymerization in which seed is butadiene polymer latex having a median particle diameter of 10 to 100 nm, and the butadiene polymer latex (B) is the product of agglomeration in which butadiene polymer latex (A) is the starting latex.
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: July 27, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Herbert Eichenauer, Vera Buchholz, Eckhard Wenz
  • Patent number: 6767965
    Abstract: The present invention provides a method of preparing a monomer-grafted syndiotactic polystyrene with polarity, which comprises (a) forming swollen syndiotactic polystyrene by mixing with a syndiotactic polystyrene in powder state and a radical initiator in a solvent at the temperature of 40-80° C. using a batch reactor, and (b) grafting a monomer selected from the group consisting of maleic anhydride, maleic imide and derivatives thereof onto the swollen syndiotactic polystyrene.
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: July 27, 2004
    Assignee: Samsung Atofina Co. Ltd.
    Inventors: Xuequan Zhang, Jae Gon Lim, Jung Hyun Baik, Hyun Joon Kim
  • Patent number: 6767963
    Abstract: A thermoplastic molding composition of the ABS type is disclosed. The composition that contains an elastic-thermoplastic graft polymer and a copolymer comprising styrene and acrylonitrile, is characterized in that the graft polymer is a product of radical emulsion polymerization process that is initiated by a combination of a persulfate compound and at least one azo compound and in that a first mixture that contains said azo compound and a first amount of monomers is fed in to a rubber in latex form and in a subsequent reaction step a second mixture is introduced that contains the persulfate compound and a second amount of monomers.
    Type: Grant
    Filed: January 8, 2001
    Date of Patent: July 27, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventor: Herbert Eichenauer
  • Patent number: 6765060
    Abstract: A graft copolymer composition obtained by mixing a graft copolymer (A) containing a rubbery polymer having a glass transition temperature of not higher than 0° C. as a trunk polymer and containing a alkyl ester of methacrylic acid-base polymer as a graft component, and having a mean particle size of at least 0.15 &mgr;m, and a graft copolymer (B) having a means particle size of from 0.03 to 0.13 &mgr;m; and a vinyl chloride-base resin composition containing the above described graft copolymer composition as an impact modifier, with excellent impact strength and suitable for use in the productions of pipes, window frames, joints, fences, doors, switch boxes. etc.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: July 20, 2004
    Assignee: Kaneka Corporation
    Inventors: Kazunori Saegusa, Hirokazu Iguchi, Mamoru Kadokura
  • Patent number: 6759480
    Abstract: The invention relates to thermoplastic compositions comprising: −40 to 97 parts of a thermoplastic polymer (M) forming a matrix, chosen from polyamides, polyamide block copolymers, fluoro polymers, polycarbonate, styrene resins, PMMA, thermoplastic polyurethanes (TPU), copolymers containing polyester blocks and polyether blocks, polycarbonate-polyester alloys, polyketones, PVC and ethylene-vinyl alcohol copolymers (EVOH), −60 to 3 parts of (B) comprising: either an ethylene-alkyl (meth)acrylate copolymer (B1), the alkyl having at least 5 carbon atoms, which copolymer (B1) carries a functional group or a blend of an ethylene-alkyl (meth)acrylate copolymer (B2), the alkyl having at least 5 carbon atoms, which copolymer (B2) does not carry a functional group, and of an impact modifier which carries a functional group.
    Type: Grant
    Filed: September 26, 2000
    Date of Patent: July 6, 2004
    Assignee: Atofina
    Inventors: Alain Bouilloux, Christophe Lacroix, Jean-Marc Le Blevec, Thibaut Montanari
  • Patent number: 6753378
    Abstract: The present invention is intended to provide a branched polyolefin having various excellent properties, a process for preparing the branched polyolefin and a thermoplastic resin composition containing the branched polyolefin. This branched polyolefin comprises an olefin chain (A) and olefin chain(s) (B) which have recurring units obtained from at least one olefin as main constituent units. In the branched polyolefin, the olefin chain (B) is linked to a position other than both ends of the olefin chain (A), and at least one olefin chain (B) per one olefin chain (A) is present. The process for preparing a branched polyolefin comprises allowing a functional group-containing polyolefin (C) having one or more carboxyl groups and/or acid anhydride groups at positions other than both ends to react with a terminal modified polyolefin (D) having a group capable of reacting with a carboxyl group or an acid anhydride group at only the position of chain end.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: June 22, 2004
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Shinichi Kojoh, Tomoaki Matsugi, Norio Kashiwa
  • Patent number: 6737475
    Abstract: To provide a polyacetal resin material in which an excellent sliding property is given and the appearance, dimensional precision, mechanical properties, etc. of the molded article thereof are improved as well. That is, a branched polyacetal resin composition, comprising 100 parts by weight of a branched polyacetal copolymer (A) having an oxymethylene group as the main repeating unit and having a specific branching unit, and 0.5 to 40 parts by weight of at least one polymer (B) selected from the group consisting of the following polymer (B-1) and (B-2), i.e. polymer (B-1): a graft or block copolymer prepared from an olefin polymer (b-1) and at least one vinyl polymer (b-2); and polymer (B-2): a modified olefin polymer in which an olefin polymer (b-3) is modified with at least one compound selected from the group consisting of an unsaturated carboxylic acid, an unsaturated carboxylic acid anhydride and derivatives thereof and/or 0.1 to 5 parts by weight of a lubricant (C).
    Type: Grant
    Filed: July 5, 2001
    Date of Patent: May 18, 2004
    Assignee: Polyplastics Co., Ltd.
    Inventors: Yoshihisa Tajima, Hidetoshi Okawa, Kuniaki Kawaguchi
  • Patent number: 6730736
    Abstract: An alicyclic structure-containing resin composition comprising an alicyclic structure-containing resin (A) having a polar group in a proportion of 3 to 50 mol % based on the whole repeating unit in the resin, and a soft polymer (B), a varnish containing the resin composition, a sheet formed of the resin composition, and an insulating film formed of the resin composition.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: May 4, 2004
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Shojiro Kaita, Takashi Iga, Yasuhiro Wakizaka, Yasuo Tsunogae
  • Patent number: 6727319
    Abstract: A thermoplastic molding composition having an improved profile of properties is disclosed. The composition contains A) a graft rubber that is a product of free-radical emulsion polymerization of vinyl monomers in the presence of rubber a) that is present in latex form and having a glass transition temperature below 0° C., using at least one peroxydisulfate compound as an initiator, and B) a graft rubber that is a product of free-radical emulsion polymerization of vinyl monomers in the presence of at least one rubber b) that is present in latex form and having a glass transition temperature below 0° C.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: April 27, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventor: Herbert Eichenauer
  • Publication number: 20040077786
    Abstract: The present invention relates to a film comprising copolymers of ethylene and of an unsaturated epoxide and comprising quinones grafted onto these copolymers. The quinones are subsequently reduced (activation) to become oxygen absorbers.
    Type: Application
    Filed: September 2, 2003
    Publication date: April 22, 2004
    Inventors: Patrice Robert, Jean-Jacques Flat
  • Publication number: 20040072949
    Abstract: A polyolefin resin blend is presented that includes a base component of a semi-crystalline polyolefin component, a propylene-based polyolefin-metal salt, and a styrenic block ionomer. Optionally, the blend includes a thermoplastic elastomer, such as a hydrogenated styrene-butadiene random copolymer. Such blends have enhanced scratch and mar resistance while still retaining acceptable impact toughness. Methods of preparing such blends, as well as resultant articles including such blends, are also part of the invention.
    Type: Application
    Filed: October 15, 2002
    Publication date: April 15, 2004
    Inventors: Ruidong Ding, Clint Newell
  • Publication number: 20040048982
    Abstract: The present invention relates to a method of preparing rubber-modified styrene copolymer resin with excellent transparency and impact resistance, specifically to a method of preparing transparent resin of rubber-modified styrene copolymer comprising graft-copolymerizing styrene monomer and (meth)acrylate monomer in the presence of block or random styrene-butadiene copolymer which has 30-50% of styrene skeleton content and 20-40 cp of 5% toluene solution viscosity at 25 ié. According to the method of the present invention, the transparent resin containing the rubber particles of a double structure comprising onion and core-shell structure can provide transparent resin of rubber-modified styrene copolymer resin with excellent transparency and impact resistance as well as good gloss.
    Type: Application
    Filed: June 12, 2003
    Publication date: March 11, 2004
    Inventors: Chang-Hun Han, Oh-Jin Kwon, Dae-Woo Lee
  • Publication number: 20040048981
    Abstract: The invention concerns thermoplastic polymeric compositions, comprising polymeric compositions temperature and good paintability. Said compositions comprise a polyamide, a polyamide, a rubber copolymer and vinyl monomers, made compatible by a styrene polymer.
    Type: Application
    Filed: July 29, 2003
    Publication date: March 11, 2004
    Inventors: Jung Hoon Park, Yeong-Chool Yu
  • Publication number: 20040030046
    Abstract: The invention relates to a novel impact-resistance modifier, constructed from a core-shell 1 and a shell 2, whereby the core is plastically deformable. The invention is characterised by excellent mechanical properties obtained by a low content of impact-resistance modifier.
    Type: Application
    Filed: August 18, 2003
    Publication date: February 12, 2004
    Inventors: Klaus Schultes, Thomas Suefke, Reiner Mueller, Thomas Arndt, Goerg Michler, Joachim Laatsch
  • Patent number: 6686411
    Abstract: The present invention provides a vinyl chloride-based resin composition which is highly excellent in weatherability, impact resistance and gloss is provided, which comprises: (A) 100 parts by weight of a vinyl chloride-based resin; (B) from 1 to 30 parts by weight of a graft copolymer which is obtained by graft-polymerizing; (C) from 0.1 to 5 parts by weight of a methyl methacrylate-based two stages polymer which is obtained by, in the presence of a polymer while a solution of 0.1 g of said polymer in 100 ml of chloroform showing a specific viscosity (&eegr;sp) of 0.7 or more at 30° C., comprising from 0 to 50% by weight of a repeating unit derived from methyl methacrylate, while a solution of 0.1 g of said two stages polymer in 100 ml of chloroform showing a specific viscosity of 0.5 or more at 30° C.; and (D) from 1 to 20 parts by weight of calcium carbonate.
    Type: Grant
    Filed: April 9, 2002
    Date of Patent: February 3, 2004
    Assignee: Kaneka Corporation
    Inventors: Hirokazu Iguchi, Nobumasa Nakajima, Koji Yui, Mamoru Kadokura
  • Patent number: 6673868
    Abstract: The present invention discloses polymeric compositions containing a vinylaromatic lubricating copolymer which can be melt processed to provide plastic films or layers having excellent optical, printing, weathering, and tensile impact resistance characteristics. The present invention also discloses a processes for preparing plastic films of the compositions of the present invention. The present invention also discloses composite articles having the plastic films of the present invention and an underlying substrate.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: January 6, 2004
    Assignee: Rohm and Haas Company
    Inventor: Olivier Jacques Choulet
  • Patent number: 6673867
    Abstract: A heat-resistant engineering-plastic composition that satisfies a soldering-heat resistance of 260° C. for 10 to 60 secs., that is less costly, that is free of problems in injection molding process, and that is excellent in heat-aging resistance. A heat-resistant molded product made with the heat-resistant engineering-plastic composition, such as a connector mounted on printed circuit board. The heat-resistant molded product is produced by (a) melt-kneading (a1) an engineering plastic either having or introduced an active site for reacting with a specific functional group and (a2) either an organic compound that has both the said specific functional group and a polymerizing functional group in the same molecule or polyolefin that has the said specific functional group described in (a1) to obtain a resin composition, (b) melt-molding the resin composition comprising of (a), and (c) irradiating the melt-molded resin composition with ionizing radiation.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: January 6, 2004
    Assignee: Sumitomo Electric Fine Polymer, Inc.
    Inventors: Hiroshi Hayami, Shinya Nishikawa
  • Publication number: 20030236350
    Abstract: In one of its aspects the invention is directed to rubber modified thermoplastic resin compositions comprising a discontinuous elastomeric phase dispersed in a rigid thermoplastic phase, wherein at least a portion of the rigid thermoplastic phase is grafted to the elastomeric phase, and wherein said thermoplastic phase comprises structural units derived from at least one vinyl aromatic monomer, at least one monoethylenically unsaturated nitrile monomer and at least one (C1-C12)alkyl- or aryl-(meth)acrylate monomer.
    Type: Application
    Filed: June 19, 2003
    Publication date: December 25, 2003
    Applicant: General Electric Company
    Inventors: Albin Peter Berzinis, James Edward Pickett
  • Patent number: 6667363
    Abstract: A material for liquid keeping containers comprising a resin composition which contains a syndiotactic polystyrene resin and a polypropylene resin and includes a compatibilized structure of the syndiotactic polystyrene resin phase and the polypropylene resin phase, the proportion of these phases being 90-10/10-90 (weight ratio).
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: December 23, 2003
    Assignees: Asahi Kasei Kabushiki Kaisha, Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Ken Mizushiro, Shigekatsu Yoshida, Hideo Kinoshita, Toshiro Ijima
  • Patent number: 6667367
    Abstract: A directly paintable polyolefin composition contains (1) a graft copolymer, composition containing (a) a graft copolymer having a backbone of propylene polymer material having graft polymerized thereto at least one vinyl monomer capable of being polymerized by free radicals, (b) a rubber component, and, optionally, (c) a broad molecular weight distribution propylene polymer material, (2) an oxidized polyethylene wax, (3) a propylene-homopolymer or copolymer grafted with an anhydride of an aliphatic &agr;,&bgr;-unsaturated dicarboxylic acid, (4) a functionalized polymer that is reactive with the anhydride groups of the grafted polymers, (5) optionally, a polyolefin rubber grafted with an anhydride of an aliphatic &agr;,&bgr;-unsaturated dicarboxylic acid, and (6) optionally, an ethylene polymer grafted with an anhydride of an aliphatic &agr;,&bgr;-unsaturated dicarboxylic acid.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: December 23, 2003
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventor: Dominic A. Berta
  • Patent number: 6657006
    Abstract: This composition includes: at least one out of (A1) the graft polymers resulting from the grafting of at least one grafting monomer such as maleic anhydride onto (a) impact or crystal styrene homopolymers and copolymers and/or (b) optionally hydrogenated styrene-diene elastomer block polymers, (b) not being the only polymer in the mixture of (A) and (B); (A2) at least one copolymer (b) mixed with at least one polymer (B1); (A3) graft polymers resulting from the cografting of at least one grafting monomer onto a mixture of at least one polymer (a) and of at least one of (c) ethylene-vinyl acetate copolymers, ethylene-alkyl (meth)acrylate copolymers, ethylene homopolymers, and ethylene-&agr;-olefin copolymers; (A4) graft polymers resulting from the cografting of at least one grafting monomer onto at least one polymer (a) to which at least one tackifying resin (d) has been added, these graft polymers being mixed with at least one polymer (B1); and optionally at least one out of (B1) graft polymers resulti
    Type: Grant
    Filed: March 7, 1995
    Date of Patent: December 2, 2003
    Assignee: Atofina
    Inventors: Catherine Beuzelin, Alain Bouilloux, Jean-Claude Jammet, Yves Trolez
  • Patent number: 6653402
    Abstract: A golf ball comprising a part of a resin composition comprising (A) a polyester block copolymer, (B) an ionomer resin, (C) a polyester-aromatic vinyl copolymer block copolymer and (D) an epoxy-modified graft polymer comprising an olefin polymer backbone and vinyl polymer pendants wherein components (C) and (D) help to mix components (A) and (B) in a more compatible manner is provided. The resin composition has flexibility, high resilience, toughness, flexural fatigue resistance and tear strength, exhibits a sufficiently smooth flow in the melt to injection mold, and develops no delamination when molded, and the golf ball offers increased distance and pleasant feel upon impact and is endowed with superior durability.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: November 25, 2003
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Yasushi Ichikawa, Yoko Furuta
  • Patent number: 6649117
    Abstract: The present invention relates to thermoplastic molding compositions based on ASA (acrylonitrile-styrene-acrylate) with improved flowability and improved extrusion properties. The invention further relates to a process for preparing these thermoplastic molding compositions, their use and also, produced therefrom, reduced-gloss and antistatic films and moldings, and coatings with reduced gloss, and the use of these.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: November 18, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Güntherberg, Gerhard Lindenschmidt, Norbert Niessner
  • Patent number: 6646047
    Abstract: The invention provides a process for the preparation of a thermoplastic elastomeric resin composition comprising melt kneading (a) 100 parts by weight of a block copolymer consisting of at least two polymeric blocks (A) composed mainly of a vinyl aromatic compound and at least one polymeric block (B) composed mainly of a conjugated diene compound, and/or a hydrogenated block copolymer obtained by hydrogenating said block copolymer, (b) 20 to 300 parts by weight of a non-aromatic softening agent for rubber, (c) 1 to 150 parts by weight of a peroxide-crosslinking type olefinic resin and/or a copolymeric rubber containing said resin, and (d) 10 to 150 parts by weight of a peroxide-decomposing type olefinic resin and/or a copolymer containing said resin, characterized in that the process comprises a step of heat-processing component (a), component (b), at least a part of component (c), at least a part of component (d) and at least a part of 1.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: November 11, 2003
    Assignee: Riken Technos Corporation
    Inventors: Michihisa Tasaka, Akihiro Tamura, Tetsuya Sawai
  • Patent number: 6639013
    Abstract: The present invention provides a method for the preparation of graft, block, and star-shaped copolymers. The method involves in situ coupling reaction between a living anionic backbone polymer possessing epoxy side chains and other living anionic polymers. The present method is simple, the coupling reaction is fast, pure copolymers are produced and the molecular weight, graft number and grafting position can be controlled to a greater extent than in existing methods.
    Type: Grant
    Filed: July 3, 2000
    Date of Patent: October 28, 2003
    Assignee: The Research Foundation of State University of New York
    Inventors: Eli Ruckenstein, Hongmin Zhang
  • Patent number: 6620883
    Abstract: The invention relates to a process for the preparation of graft rubber polymers of the ABS type by emulsion polymerization according to the so-called fed batch process, in which latexes having markedly reduced residual monomer contents are obtained, and to compositions containing the mentioned graft rubber polymers.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: September 16, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Erich Gasche, Herbert Eichenauer, Pierre Vanhoorne, Ulrich Jansen, Eckhard Wenz, Stefan Moss
  • Patent number: 6617397
    Abstract: The surface energy of polymeric substrates is increased by the application or incorporation of novel amphiphilic block copolymers. The block copolymer additives comprise a linear hydrophilic polymer or oligomer and a random hyperbranched polymer or oligomer and is completely or partially terminated with lipophilic end groups. The polymeric articles or constructions which benefit from the application or incorporation of the amphiphilic block copolymers in the areas of anti-fog, dissipation of static electricity, paintability, dyeability, printability, wicking of moisture, adhesion and polymer compatibility include carpet fibers, composite fibers, agricultural films, nonwoven coverstock, exterior automotive bumper fascia, packaging, hygienic products, incompatible polymer blends, laminated articles and eyewear.
    Type: Grant
    Filed: March 4, 2002
    Date of Patent: September 9, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: John James McNamara, Anunay Gupta, David Devore
  • Publication number: 20030162896
    Abstract: The invention relates to a gelling aqueous composition comprising block copolymers containing at least one water-soluble block and at least one block predominantly hydrophobic in nature, and forming a viscoelastic gel.
    Type: Application
    Filed: November 12, 2002
    Publication date: August 28, 2003
    Inventors: Mathias Destarac, Mathieu Joanicot, Roland Reeb
  • Patent number: 6608139
    Abstract: A thermoplastic molding composition, comprising (A) from 20 to 99% by weight of at least one graft copolymer, (B) from 1 to 80% by weight of a copolymer of at least one alpha-olefin and from at least one polar comonomer, with the proviso that the monomers used are not vinyl acetate or any vinylaromatic monomer, and (C) from 0 to 80% by weight of a thermoplastic polymer, prepared by polymerizing a monomer mixture, comprising (c1) from 50 to 100% by weight of at least one vinylaromatic monomer and/or of a C1-C8-alkyl (meth)acrylate, and (c2) from 0 to 50% by weight of at least one monofunctional comonomer, and (D) from 0.1 to 20% by weight of a substantially uncrosslinked, low-molecular-weight polyalkyl acrylate.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: August 19, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Güntherberg, Gerhard Lindenschmidt, Norbert Niessner
  • Patent number: 6593404
    Abstract: The present invention relates to flame-retardant thermoplastic resin compositions. More particularly, the present invention relates to the thermoplastic resin compositions which comprise a polycarbonate, a styrene containing graft copolymer, a styrene containing copolymer, a mixture of alkyl substituted, preferably t-butyl substituted, monophosphate esters, a phosphate ester compound, and a fluorinated polyolefin, whose stress cracking resistance and flame retardancy are improved.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: July 15, 2003
    Assignee: Cheil Industries, Inc.
    Inventors: Jun Hyuk Shin, Sam Joo Yang, Young Kil Chang
  • Publication number: 20030130420
    Abstract: Slush moldable polyolefin powders are prepared by blending a crosslinkable silane-grafted, olefinic interpolymer, optionally containing a crystalline polypropylene homopolymer or interpolymer; and a crosslinked silane-grafted, olefinic interpolymer containing a cure catalyst, the blend optionally containing a crystalline polyolefin powder. The resulting compositions can be slush molded to make a variety of articles of manufacture, especially automotive interior components, having good hot tear properties, low hardness and no glossing after heat aging.
    Type: Application
    Filed: September 25, 2002
    Publication date: July 10, 2003
    Inventors: Stephen H. Cree, Timothy E. Clayfield
  • Patent number: 6589378
    Abstract: A process for producing a UV-stable laminated structure having thermal aging resistance includes coextruding the following layers in a single-stage operation, or laminating the following layers onto one another in a heatable roll nip: a substrate layer made up of a graft copolymer and a styrene and/or (meth)acrylate/(meth)acrylonitrile copolymer, and optionally containing a polycarbonate and a fibrous and/or particulate filler; and a transparent top layer of polymethyl methacrylate. In another embodiment, an interlayer of e.g., impact-modified polymethyl methacrylate or polycarbonate, is coextruded or laminated between the transparent top layer and the substrate layer to produce a UV-stable laminated structure. An adhesion layer containing an adhesion promoter can be coextruded or laminated on the outer surface of the substrate layer. A molding is produced by thermoforming the UV-stable laminated structure, which is advantageously backsprayed or back-cast with the substrate layer or a polyurethane foam.
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: July 8, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Achim Grefenstein, Gerhard Lindenschmidt, Carsten Netze, Doris Zeltner
  • Publication number: 20030119986
    Abstract: A thermoplastic molding composition that features a combination of extremely good toughness, good processability, adjustable surface gloss, good inherent color and reduced opacity is disclosed. The composition contains A) a graft rubber that is the product of free-radical emulsion polymerization using a peroxodisulfate initiator, B) a graft rubber that is the product of free-radical emulsion polymerization using an azo compound initiator and C) a graft polymer that is the product of solution, bulk or suspension polymerization.
    Type: Application
    Filed: September 13, 2002
    Publication date: June 26, 2003
    Inventor: Herbert Eichenauer
  • Patent number: 6583222
    Abstract: This invention describes grafted blend compositions, processes for their preparation and fabricated articles, especially foams therefrom. The blends exhibit enhanced melt strength, melt elongation greater than or equal to about 20 mm/s, increased upper service temperature, increased modulus, and increased hardness. The grafted blend compositions have little or no high shear viscosity increase over a corresponding polymer of the same chemical composition absent the coupling agent.
    Type: Grant
    Filed: March 4, 2002
    Date of Patent: June 24, 2003
    Assignee: The Dow Chemical Company
    Inventors: Bharat I. Chaudhary, Thomas Oswald, Thoi H. Ho, Jennifer DellaMea
  • Patent number: 6583221
    Abstract: This invention is related to a vinyl chloride resin as obtainable by graft-copolymerizing an acrylic copolymer (a) having a mean particle diameter of 60 to 250 nm with a vinyl monomer (b) predominantly composed of vinyl chloride, said acrylic copolymer (a) being obtainable by graft-copolymerizing 40 to 90 weight % of a copolymer (a−1) with 10 to 60 weight % of a mixture monomer (a−2), said copolymer (a−1) being composed of 100 weight parts of a radical-polymerizable monomer which gives a homopolymer having a glass transition point of not lower than −140° C. but lower than −60° C. and 0.1 to 1 weight part of a polyfunctional monomer, and said mixture monomer (a−2) comprising 100 weight parts of a radical-polymerizable monomer predominantly comprised of a (meth) acrylate which gives a homopolymer having a glass transition point of not lower than −55° C. but lower than −10° C. and 1.5 to 10 weight parts of a polyfunctional monomer.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: June 24, 2003
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Takahiro Omura, Noriki Fujii
  • Patent number: 6579953
    Abstract: The use of polymers which are obtainable by polymerization of a) at least one vinyl ester of aliphatic C1-C24-carboxylic acids in the presence of b) polyethers of the general formula I,  in which the variables have, independently of one another, the meanings mentioned in the description, as coating agent, binder and/or film-forming excipient in pharmaceutical presentations.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: June 17, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Gotsche, Karl Kolter, Axel Sanner, Maximilian Angel, Alfred Leinenbach
  • Patent number: 6579937
    Abstract: Thermoplastic molding compositions comprising (A) 5 to 98%-wt., based on components (A) through (E), of at least one elastomeric graft copolymer, (B) 1 to 90%-wt., based on components (A) through (E), of a further copolymer, (C) 1 to 70%-wt., based on components (A) though (D), of an elastomeric block copolymer composed of at least one block CA (hard phase) having copolymerized units of a vinylaromatic monomer, and at least one elastomeric block C(B/A) (soft phase) having copolymerized units of a vinylaromatic monomer, and of a diene, (D) 0 to 300%-wt., based on components (A) through (C), of a polycarbonate, and (E) 0 to 30%-wt., based on components (A) through (E), of conventional additives and processing aids, are useful for producing films, moldings or fibers.
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: June 17, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Güntherberg, Josef Wünsch, Peter Ittemann, Konrad Knoll, Norbert Niessner
  • Patent number: 6566436
    Abstract: The use of a thermoplastic molding composition which is not ABS, comprising, based on the total of the amounts of components A, B, C, and, where appropriate, D, this total being 100% by weight, a: as component A, from 1 to 48% by weight of at least one particulate emulsion polymer which has one or more phases and has a glass transition temperature below 0° C. in at least one phase, and has a median particle size from 50 to 1000 nm, b: as component B, from 1 to 48% by weight of at least one amorphous or semicrystalline polymer, c: as component C, from 51 to 90% by weight of polycarbonates, and d: as component D, from 0 to 47% by weight of conventional addictives and/or fibrous or particulate fillers, or a mixture of these, for producing moldings, or corresponding semifinished products, for the garden sector or animal-keeping sector.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: May 20, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Güntherberg, Heiner Görrissen, Graham Edmund Mc Kee, Norbert Niessner, Martin Weber
  • Publication number: 20030092838
    Abstract: The present invention relates to a supramolecular polymer composition and to a method of manufacturing such a composition in particular for use in making cables.
    Type: Application
    Filed: September 20, 2002
    Publication date: May 15, 2003
    Inventors: Lionel Fomperie, Laurent Bouteiller, Olivier Colombani