Solid Graft Or Solid Graft-type Copolymer With Other Solid Polymer, Sicp, Or Spfi Patents (Class 524/504)
  • Patent number: 6777484
    Abstract: The thermal stability of graft copolymers can be improved by blending (1) a graft copolymer comprising a backbone of a propylene polymer material having graft polymerized thereto a monomer selected from the group consisting of (a) an ester of an acrylic acid substituted at the alpha carbon atom by a 1-3 alkyl group and (b) a combination of (i) an ester of an acrylic acid substituted at the alpha carbon atom by a 1-3 alkyl group and (ii) an ester of an unsubstituted acrylic acid, or an acrylic acid substituted at the alpha carbon atom by a 1-3 carbon alkyl group and (2) about 1 weight % to about 25 weight % of a fluorinated olefin polymer, wherein the ratio of the polymerized monomer to the fluorinated olefin polymer is about 25:1 to about 0.5:1.
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: August 17, 2004
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventor: Suhas G. Niyogi
  • Patent number: 6777492
    Abstract: The graft copolymer (G) of the present invention is a graft copolymer which is prepared by emulsion graft polymerization of a rubber polymer comprising 0-50% by weight of a butadiene unit and 50-100% by weight of a (meth)acrylate unit and at least one monomer selected from aromatic alkenyl compound, methacrylate, acrylate and vinyl cyanide compound, said graft copolymer containing 0.5-2.0% by weight of an emulsifier residue. The thermoplastic resin composition containing the graft copolymer of the present invention causes less gas evolution during the molding, provides a molded article with good gloss of molding, and has excellent weather resistance, impact resistance and fluidity.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: August 17, 2004
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Yoshihiro Nakai, Hideyuki Fujii, Hisaya Yokohama, Takahiro Ikebe, Nobumitsu Fukuyama, Hideyuki Shigemitsu
  • Patent number: 6774166
    Abstract: A thermoplastic molding composition that features a combination of good notched impact strength and thermoplastic processability is disclosed. The composition contains one or more thermoplastic (co)polymers, a graft polymer and a combination of at least 3 components chosen from a compound (I) having at least one structural unit conforming to where M=a metal, and n=the valence of the metal M, and a compound (II) having at least one structural unit conforming to and a compound (III) having at least one structural unit conforming to and a compound (IV) that contains none of the structural units of (I), (II) and (III).
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: August 10, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Herbert Eichenauer, Edgar Leitz
  • Patent number: 6770701
    Abstract: The present invention is directed to a method for producing a copolymer and a copolymer product of the method. The copolymer is prepared by a controlled radical polymerization process, typically an atom transfer radical polymerization process, in which polymerizable alkene monomers are polymerized in the presence of a halogenated polyolefin macroinitiator. The copolymer product of this process is useful in a film-forming composition that adheres strongly to polyolefinic substrates and to which non-polyolefinic film-forming compositions strongly adhere. The copolymer can be applied to a substrate in an adhesion-promoting layer or can be incorporated into a film-forming composition, such as a primer, that contains additional resinous compounds.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: August 3, 2004
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Simion Coca, Brian K. Rearick, James B. O'Dwyer
  • Patent number: 6770234
    Abstract: The present invention is directed to the method of extruding a thermoplastic co-polyester EMA (ethyl methyl acrylate) blended film at temperatures well above the melt temperature of the base thermoplastic co-polyester, the co-polyester/EMA film having enhanced barrier properties. Notably, the present invention contemplates extrusion of co-polyester compounds onto suitable substrates without the need to employ antioxidant compounds in the molten polymer material. A further aspect of the present invention entails a film comprising an EMA and co-polyester thermoplastic admixed with a compatibilizer and extruded at a temperature at least 10% higher than the melt temperature, which in turn provides the co-polyester film with durable adhesive properties in addition to good breathability as measured by moisture vapor transmission rate (MVTR).
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: August 3, 2004
    Assignee: Polymer Group, Inc.
    Inventors: Kevin Paul Osborn, Larry H. McAmish
  • 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: 6762217
    Abstract: A water-based ink comprising an aqueous dispersion of polymer particles comprising a polymer obtained by a solution polymerization, a bulk polymerization method or a suspension polymerization method, and a fluorescent colorant. The water-based ink can be suitably used as a water-based ink for inkjet recording and the like.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: July 13, 2004
    Assignee: Kao Corporation
    Inventors: Shigemi Wakabayashi, Yukihiro Nakano
  • Patent number: 6759474
    Abstract: The present invention provides a polymer alloy including from about 40% to about 75% by weight of at least one polyamide, from about 10% to about 50% by weight polypropylene, from about 0.01% to about 1.0% by weight of at least one block copolymer including a vinyl aromatic monomer and a conjugated diene, and also includes an unsaturated dicarboxylic reagent, from about 0.1% to about 5.0% by weight of at least one block copolymer or terpolymer, wherein the terpolymer may have an unsaturated dicarboxylic reagent grafted thereto, from about 0.01% to about 7.5% of a compatibilizing agent, and from about 5% to about 50% by weight of a filler. The alloy of the present invention exhibits improved knitline strength and improved drop impact results compared with prior art fiberglass-reinforced nylon blends.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: July 6, 2004
    Assignee: Ferro Corporation
    Inventors: Brian D. Keener, Morris M.S. Lee, Daniel L. Evans, Donald E. Julian, Thomas L. McElyea, Deenadayalu Chundury
  • Patent number: 6740412
    Abstract: Polymeric adhesive comprising a homogeneous mixture of at least three constituents: (a) at least one thermoplastic halogenated hydrocarbon polymer, (b) at least one copolymer of monoethylenic monomers which carry an alkyl carboxylate functional group and (c) at least one alpha-olefin polymer modified by the incorporation of at least one functional group chosen from a carboxyl, an acid anhydride, a hydroxyl and an epoxide. Process for the preparation of this polymeric adhesive and use of this polymeric adhesive in the preparation of structures with multiple polymeric layers. Structures with multiple polymeric layers comprising a layer (A) based on thermoplastic halogenated hydrocarbon polymer bonded to a layer (C) based on thermoplastic nonhalogenated polymer incompatible with (A) via a layer (B) based on this polymeric adhesive.
    Type: Grant
    Filed: July 9, 2001
    Date of Patent: May 25, 2004
    Assignee: Solvay (Societe Anonyme)
    Inventors: Jean-Marie Oreins, Vincent Thulliez, Guy Laurent, Fredy Declerck
  • Publication number: 20040097637
    Abstract: Adhesive compositions which exhibit significantly improved adhesion to metals and polyolefins are provided. The compositions are blends of one or more polyolefin base resins and graft-modified polyolefin to which a low level of adhesion promoter is added.
    Type: Application
    Filed: November 19, 2002
    Publication date: May 20, 2004
    Inventor: Maged G. Botros
  • Patent number: 6734242
    Abstract: There is provided a composition comprising i) a pigment ii) a compound having the formula wherein R1, R2 and R3 are independently selected from an acyl group or a hydrogen atom, wherein at least one of R1, R2 and R3 is an acyl group (a short acyl group) having from 2 to 5 carbon atoms, wherein at least one of R1, R2 and R3 is a branched chain acyl group (a long acyl group) consisting of a chain having 10 to 20 carbon atoms and a hydrophilic branch group.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: May 11, 2004
    Assignee: Danisco A/S
    Inventors: Bjarne Nielsen, Flemming Vang Sparsø
  • Patent number: 6734241
    Abstract: There is provided composition comprising i) a thermoplastic polymer ii) a compound having the formula wherein R1, R2 and R3 are independently selected from an acyl group or a hydrogen atom, wherein at least one of R1, R2 and R3 is an acyl group (a short acyl group) having from 2 to 6 carbon atoms, wherein at least one of R1, R2 and R3 is a branched chain acyl group (a long acyl soup) consisting of a saturated chain having 10 to 20 carbon atoms and a hydrophilic branch group.
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: May 11, 2004
    Assignee: Danisco A/S.
    Inventors: Bjarne Nielsen, Flemming Vang Sparso, Jorgen Kirk Kristiansen
  • Patent number: 6727297
    Abstract: Thermoplastic molding compositions comprising, as substantive constituents A) from 5 to 95% by weight of a vinylaromatic polymer having a syndiotactic structure, B) from 2 to 50% by weight of an inorganic filler, C) from 1 to 45% by weight of an elastomeric, particulate graft polymer, D) from 1 to 10% by weight of a compatibilizer, and, where appropriate, E) from 1 to 45% by weight of an elastomeric particulate styrene-diene block copolymer whose diene fraction may have been completely or to some extent hydrogenated, and, where appropriate, F) from 1 to 35% by weight of a thermoplastic elastomer based on copolymers made from vinylaromatic monomers, dienes, and, where appropriate, 1,1-diphenylethylene, and, where appropriate, G) additives, where the total of the percentages by weight of A) to G) is 100.
    Type: Grant
    Filed: October 3, 2002
    Date of Patent: April 27, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Geprägs, Graham Edmund Mc Kee, Konrad Knoll
  • Patent number: 6723779
    Abstract: A latex which forms a film by evaporation at a temperature of less than 40° C. is based on hydrophobic polymer particles having a core/shell structure. The particles consist of 70 to 90% by weight of at least one polymer with a soft character having a glass transition temperature of less than 20° C. forming the core, and 10 to 30% by weight of at least one polymer with a hard character having a glass transition temperature of greater than 50° C. forming the shell. When applied to any surface and after drying at low temperature, the latex, without the use of any coalescents or volatile organic compounds, provides a continuous film which is homogeneous, has no surface tack and has good mechanical integrity.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: April 20, 2004
    Assignee: Elf Atochem S.A.
    Inventors: Xavier Drujon, Pascale Fabre, Ludwik Leibler, Gilles Meunier, Fabrice Domingues Dos Santos
  • Patent number: 6723764
    Abstract: A process for preparing an enlarged latex, which comprises (1) causing (a) an anionic surfactant and (b) at least one surfactant selected from the group consisting of a cationic surfactant and an amphoteric surfactant to exist in a latex, (2) adding, as an aggregating and enlarging agent, at least one selected from the group consisting of (i) an inorganic acid, (ii) an organic acid, (iii) a substance which forms an acid in water, (iv) a combination of at least two substances which are reacted with each other to form an acid, and (v) a substance which forms an acid by exposure to active rays to the latex in the presence of these surfactants, and (3) causing the acid derived from the aggregating and enlarging agent to act on the latex, thereby enlarging the particle diameter of the latex, an enlarged latex obtained by the preparation process, a graft copolymer obtained by polymerizing a polymerizable monomer with the enlarged latex, and a resin composition comprising the graft copolymer and a thermoplastic resi
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: April 20, 2004
    Assignee: Rohm and Haas Company
    Inventor: Hiroshi Sakabe
  • Patent number: 6716903
    Abstract: A coating mix for the production of coated paper and board is described in form of an aqueous dispersion with a solids content of 50 to 80% consisting of pigments, binders, and additives. The coating mix exhibits thixotropic flow characteristics and is characterized by the usage of special amine-group or amide-group containing polymers, which act as protective colloids for the pigment particles. The coating mix contains preferably between 0.1 to 1 weight percent of a grafted gelatin.
    Type: Grant
    Filed: August 1, 2000
    Date of Patent: April 6, 2004
    Assignee: CTP Papierhilfsmittel GmbH & Co.
    Inventor: Manfred Baumeister
  • Publication number: 20040063857
    Abstract: A molding composition that features low water absorption, low thermal expansion and mold shrinkage is disclosed. The composition that optionally contains fillers or reinforcing agents contains polyamide, an impact modifier and a member selected from the group consisting of phenol-formaldehyde resin, an oligomeric or polymeric compound having at least 2 phenolic hydroxyl groups per molecule. Further optional components are compatibility promoter and a vinyl (co)polymer.
    Type: Application
    Filed: July 21, 2003
    Publication date: April 1, 2004
    Inventors: Marc Vathauer, Detlev Joachimi
  • Patent number: 6713548
    Abstract: This invention relates to waterborne polymer compositions and their applications. More particularly, the invention relates to the utilization of water-dispersible polymers and fatty acid as surface-active agents in emulsion polymerization reactions to produce waterborne polymer compositions which exhibit superior grease, water, and chemical resistance properties.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: March 30, 2004
    Assignee: MeadWestvaco Corporation
    Inventors: Sukun Zhang, Charles Andrew Rumble, Warunee Srisiri-Sisson, Marc Stephen Moisa, James George Hayden
  • Patent number: 6710127
    Abstract: The invention relates to levelling agents for surface coatings having a weight-average molecular weight of from 5000 to 100,000. The levelling agent is a branched polymer comprising a free-radically or ionically polymerized base molecule into which macromonomeric units containing at one end a monomeric unit which has an ethylenically unsaturated bond and possessing a weight-average molecular weight of from 1000 to 30,000 have been incorporated by free-radical or ionic copolymerization, the weight fraction of the macromonomeric units, based on the total weight of the branched polymer, being from 1 to 60% by weight. The invention further relates to the use of appropriate polymers as levelling agents for coating formulations and to coating formulations comprising the levelling agents of the invention.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: March 23, 2004
    Assignee: BYK- Chemie GmbH
    Inventors: Karlheinz Haubennestel, Alfred Bubat, Albert Frank
  • Patent number: 6710112
    Abstract: An aqueous polymer dispersion having a minimum film-forming temperature of below +65° C.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: March 23, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Mario Sandor, Cheng-Le Zhao, Harald Röckel, Uwe Dittrich
  • Publication number: 20040054063
    Abstract: Polymer particles having select functional or absorbing groups are provided. The polymer particles are useful for preparing organic-inorganic composite particles that are suitable for providing dried coatings with improved hiding. Aqueous compositions containing these composite particles are also provided. The select absorbing groups include phosphorus acid groups, phosphorus acid full-ester groups, polyacid sidechain groups, and salts thereof. The select functional groups are capable of forming covalently bonded composite particles. The composite particles formed from the multistage polymer particles having the select functional or absorbing groups are useful for preparing dried coatings with a combination of improved hiding, increased gloss, and good film properties.
    Type: Application
    Filed: August 18, 2003
    Publication date: March 18, 2004
    Inventors: Ward Thomas Brown, James Keith Bardman
  • Patent number: 6706786
    Abstract: Disclosed is a resin composition containing the following components (A), and (B) or optionally, (C), (D), and (E): (A) an atactic polystyrene or a mixture of an atactic polystyrene and a rubber-like elastic substance: 30 to 95 parts by weight; (B) a syndiotactic polystyrene having a melting point of not higher than 255° C.: 70 to 5 parts by weight; (C) a polyphenylene ether having an intrinsic viscosity of 0.5 deciliter/g or less as measured in chloroform at 25° C.; (D) an inorganic filler; and (E) a polymer having compatibility or affinity with components (A) and (B) and having a polar group. The styrene resin composition exhibits improved solvent resistance and remarkable impact resistance. The composition of the invention is produced by kneading the components within a resin temperature range between the melting point of component (B) and 270° C.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: March 16, 2004
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Akihiko Okada, Takuma Aoyama
  • Patent number: 6703437
    Abstract: A resin composition for electrostatic coating, comprising a rubber-reinforced aromatic vinyl resin (A), a polyamide elastomer (B), a modified vinyl polymer (C) containing at least one functional group selected from among carboxyl, epoxy, amino and amido, and an alkali metal salt (D); a formed resin article excellent in electrostatic coatability which is formed from the resin composition; and a formed resin article having electrostatic coating film which is produced by coating the articles electrostatically.
    Type: Grant
    Filed: December 12, 2000
    Date of Patent: March 9, 2004
    Assignees: Nippon A & L Inc., Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Shiro Kamiyama, Katsumi Kohama, Hiromichi Aoki, Hajime Sakano, Yasunobu Takagawa
  • 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
  • Publication number: 20040010070
    Abstract: Halogen-free olefinic resin composition for coating material for electric wires used in automobiles containing (A)60 to 90 parts by mass of propylene-based polymer where melt flow rate is about 5 or less;(B)10 to 40 parts by mass of at least one polymer selected from the group consisting of: (B1) thermoplastic styrene elastomer,(B2) thermoplastic styrene elastomer denatured by acid component,(B3) a mixture of the thermoplastic styrene elastomer and the thermoplastic styrene elastomer denatured by acid component, in which the styrene elastomer and the denatured styrene elastomer respectively account for 5 to 35 parts by mass in the total amount of 10 to 40 parts by mass; (B4) rubber denatured by acid component, (B5) polyolefin denatured by acid component and (B6) a mixture of polyolefin and the polyolefin denatured by acid component, in which the polyolefin and the denatured polyolefin respectively account for 5 to 35 parts by mass in the total amount of 10 to 40 parts by mass, whereby the total amount of the
    Type: Application
    Filed: July 8, 2003
    Publication date: January 15, 2004
    Applicant: SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Masashi Sato, Shinichi Matsumoto
  • Patent number: 6670417
    Abstract: Pressure sensitive adhesive formulations of an acrylic polymer grafted with a hydrogenated rubber. In one embodiment, the polymer contains a hydroxyalkyl (meth)acrylate ester which is crosslinked with a titanium-containing chelated metal alkoxide. The adhesive formulations provide an exceptional combination of adhesion to low energy surfaces and high temperature cohesive strength.
    Type: Grant
    Filed: February 13, 2003
    Date of Patent: December 30, 2003
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Paul B. Foreman, Smita M. Shah, Rama Chandran, Patrick S. Eaton
  • Patent number: 6670414
    Abstract: A binder resin containing a mixture of carboxyl group containing chlorinated polyolefins and an ethylene-vinyl acetate copolymer. The binder resin is incorporated in primer formulations for application on substrates including polyolefinic materials.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: December 30, 2003
    Assignee: Nippon Paper Industries Co., Ltd.
    Inventors: Kazunori Shiraishi, Naosuke Komoto, Takaaki Ueda, Keiji Urata
  • Patent number: 6664315
    Abstract: In the present invention, an inorganic reactant is, or reactants are, localized with respect to a dendritic polymer by physical constraint within or by a non-covalent conjugation to the dendritic polymer. The localized inorganic reactant or reactants is/are subsequently transformed to form a reaction product which is immobilized with respect to the dendritic polymer. This immobilization occurs on a nanoscopic scale as a consequence of the combined effects of structural, chemical and physical changes without having covalent bonds between the product(s) and the dendritic container and results in new compositions of matter called dendritic nanocomposites. The resulting nanocomposite material can be used to produce revolutionary products such as water soluble elemental metals, with specific applications including magnetic resonance imaging, catalytic, magnetic, optical, photolytic and electroactive applications.
    Type: Grant
    Filed: February 10, 2001
    Date of Patent: December 16, 2003
    Assignee: The Dow Chemical Company
    Inventors: Donald A. Tomalia, Lajos Balogh
  • Patent number: 6664324
    Abstract: The present invention relates to a resin solution composition for paints or adhesives which comprises an acid-modified butene-1/&agr;-olefin copolymer obtained by modifying a butene-1/&agr;-olefin copolymer with an unsaturated carboxylic acid or an acid anhydride thereof. The butene-1/&agr;-olefin copolymer comprises, as polymerizable components, 65 to 85 mol % butene-1 component and 15 to 35 mol % &agr;-olefin component having 2 to 8 carbon atoms other than butene-1 component. The acid-modified butene-1/&agr;-olefin copolymer comprises the unsaturated carboxylic acid or the anhydride thereof in a proportion of 0.5 to 5% by weight. In this resin solution composition, the acid-modified butene-1/&agr;-olefin copolymer is dissolved in an organic solvent, in a solid content of 10 to 30% by weight.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: December 16, 2003
    Assignee: Toyo Kasei Kogyo Company Limited
    Inventors: Kenichiro Isomoto, Takafumi Masuda, Shoji Maekawa
  • Patent number: 6660796
    Abstract: The present invention relates to a molding composition containing thermoplastic polyesters, impact-modifying component which contains anhydride groups, a copolymer of &agr;-olefin, acrylic compound, olefinically unsaturated epoxide, carboxylic anhydride, carboximide, oxazoline and/or oxazinone, which has improved low-temperature impact strength; methods of making molding with the molding composition and molding containing the composition.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: December 9, 2003
    Assignee: Degussa AG
    Inventors: Ralf Schueler, Heinz Peirick, Guido Schmitz, Georg Oenbrink, Harald Haeger
  • Patent number: 6660789
    Abstract: A polyester composition comprising (A) 30 to 95 parts by weight of a polybutylene terephthalate resin containing a polybutylene terephthalate-isophthalate copolymer in which the content of an isophthalic acid ingredient to the entire dicarboxylic acid ingredient is 5 to 20 mol %, (B) 1 to 30 parts by weight of a polycarbonate resin, (C) 3 to 20 parts by weight of an elastomer and (D) 15 to 30 parts by weight of a fibrous reinforcing material, and (E) 0.1 to 3 parts by weight of a silicone compound, wherein the total amount for (A)-(D) is 100 parts by weight, the composition being used for insert molding.
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: December 9, 2003
    Assignees: Toray Industries, Inc., Denso Corporation
    Inventors: Tomoyuki Uno, Takashi Sugata, Akira Hirai, Tetsuya Hirose, Hiroyuki Yamazaki, Kazuo Kato
  • Patent number: 6660794
    Abstract: A reinforced thermoplastic composition includes specific amounts of a poly(arylene ether), a homopolymer of an alkenyl aromatic monomer, a polyolefin, a hydrogenated block copolymer with a high styrene content, an unhydrogenated block copolymer, and, glass fibers. The composition exhibits extremely high stiffness while maintaining high impact strength.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: December 9, 2003
    Assignee: General Electric Company
    Inventors: Adeyinka Adedeji, Thomas J. Hartle, John C. Haylock
  • Patent number: 6656889
    Abstract: A thermoplastic molding composition comprising A) a thermopolastic polymer, e.g., a copolymer of styrene and acyrlonitrile, B) a graft copolymer, e.g., a graft copolymer of styrene, acrylonitrile and polybutadiene, and C) an additive mixture is described. The additive mixture C) comprises a combination of at least three components selected from components (I), (II), (III) and (IV). Component (I) contains carboxylic acid metal salt groups, e.g., magnesium stearate. Component (II) contains both carboxylic acid ester linkages and thio linkages, e.g., esters of &bgr;-thiodipropionic acid with monhydric alcohols. Component (III) contains amide linkages, e.g., ethylenediamine bisstearyl amide. Component (IV) is a compound that is different than components (I)-(III), e.g., a low molecular weight styrene/acrylonitrile copolymer. Also described are molded articles prepared from the thermoplastic molding composition of the present invention.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: December 2, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventor: Herbert Eichenauer
  • Patent number: 6656595
    Abstract: This invention relates to use of copolymers which are obtained through copolymerization, in the presence of a radical-polymerization initiator, of monomeric mixtures comprising: macromonomers obtained by (co)polymerizing, in the presence of a metal complex which is a catalytic chain transfer agent or an addition-cleavage-type chain transfer agent, and optionally a radical-polymerization initiator, at least one polymerizable monomer selected from methacrylic acid esters and styrene and if necessary methacrylic acid, or the macromonomers into which polymerizable unsaturated groups are further introduced; polymerizable unsaturated monomers containing at least one ionic functional group selected from amino, quaternary ammonium salt and sulfonic acid groups; polyoxyalkylene chain-containing nonionic polymerizable unsaturated monomers; and other ethylenically unsaturated monomers (D); and also such copolymers into which long chain alkyl groups are further introduced, as pigment-dispersing resins to be used in w
    Type: Grant
    Filed: October 12, 2001
    Date of Patent: December 2, 2003
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Yoshio Nakajima, Yoshiyuki Yukawa, Isao Kamimori
  • Patent number: 6652796
    Abstract: In manufacturing glass fiber-reinforced resin moldings a peroxide is mixed into a molding material prepared by mixing glass fibers with a thermoplastic resin, and such a molding material is molded. The peroxide is fed together with the molding material in an injection molding machine, the molding material is heated and kneaded in the molding machine, and the glass fiber mixed molten resin is injected into a mold to obtain a molded body.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: November 25, 2003
    Assignee: Kishimoto Sangyu Co Ltd
    Inventors: Takeshi Moriwaki, Toshiharu Sakaguchi
  • Patent number: 6653391
    Abstract: The thermoplastic molding composition comprises, based on the total weight of components A, C and, if desired, B and D to G, which is 100% by weight in total, a: as component A, from 1 to 99% by weight of at least one polyester, b: as component B, from 0 to 98% by weight of at least one polycarbonate, c: from 1 to 80% by weight of a specific graft copolymer C, d: as component D, from 0 to 80% by weight of at least one styrene copolymer, e: as component E, from 0 to 30% by weight of at least one rubber, f: as component F, from 0 to 60% by weight of at least one fibrous or particulate filler, and g: as component G, from 0 to 20% by weight of other additives.
    Type: Grant
    Filed: May 11, 2000
    Date of Patent: November 25, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Weber, Michael Fischer, Gerd Blinne
  • Patent number: 6649702
    Abstract: Methods are disclosed in which a micelle is stabilized against degradation upon dilution. The micelle comprises molecules of a block polymer having a hydrophobic block and a hydrophilic block. The hydrophobic block forms a core of the micelle with corona from the hydrophilic block. The methods for stabilizing the core are (1) by chemically cross-linking, (2) incorporating a hydrophobic oil (vegetable oil) in the core to render it more hydrophobic and stable, and (3) incorporating a cross-linked interpenetrating network of a stimuli-responsive hydrogel into the core. The hydrogel is responsive to any stimuli, but preferably temperature or pH. A substance such as, drugs, can be incorporated into the dense inner core of the micelles. When subjected to ultrasound, the micelles release the substance, and then reversibly revert to a stable dense core and re-encapsulating the substance when the ultrasound is turned off.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: November 18, 2003
    Assignees: University of Utah Research Foundation, Brigham Young University
    Inventors: Natalya Rapoport, William G. Pitt
  • Patent number: 6649685
    Abstract: Provided are a long fiber-reinforced polypropylene resin composition which provides a molded article excellent in a mechanical strength and an impact resistance and having a small anisotropy in a strength, so that it can suitably be used even for uses in medium-sized to large-sized molded articles, and a molded article obtained from the same. The long fiber-reinforced polypropylene resin composition comprises 35 to 75% by weight of a matrix polymer comprising a modified propylene homopolymer (A1) which is prepared by modifying a propylene homopolymer with an unsaturated carboxylic acid or a derivative thereof and which has an isotactic pentad ratio (P value) of 96% or more, a melt flow rate (230° C., 21.18N) of 80 g/10 min or more and an Mw/Mn (Q value) of 3.5 or less and 25 to 65% by weight of a glass long fiber (A2) having a length of 2 to 50 mm.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: November 18, 2003
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventors: Koichi Saito, Toshimori Nakai, Nobukazu Atsumi, Hideshi Ishiwa
  • Patent number: 6646068
    Abstract: Branched polymers are prepared by mixing together monofunctional vinylic monomer with from 0.3 to 100% w/w of polyfunctional vinylic monomer and from 0.0001 to 50% w/w of chain transfer agent and thereafter reacting the mixture to form a polymer. The resulting branched polymers are soluble and may be used as component of surface coatings and inks as well as molding resins.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: November 11, 2003
    Assignee: Lucite International UK Limited
    Inventors: Michael Stephen Chisholm, Andrew Trevithick Slark, David Sherrington, Nial O'Brien
  • 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: 6642298
    Abstract: Pressure sensitive adhesive formulations of an acrylic polymer grafted with a hydrogenated rubber. In one embodiment, the polymer contains a hydroxyalkyl (meth)acrylate ester which is crosslinked with a titanium-containing chelated metal alkoxide. The adhesive formulations provide an exceptional combination of adhesion to low energy surfaces and high temperature cohesive strength.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: November 4, 2003
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Paul B. Foreman, Smita M. Shah, Rama Chandran, Patrick S. Eaton
  • Patent number: 6639000
    Abstract: An additive mixture containing a dibenzoate and either or both of a compound containing at least one structural unit and a compound containing at least one structural unit is disclosed. The additive combination enhances the processability of a thermoplastic molding composition that contains a (co)polymer of styrene, methyl methacrylate, acrylonitrile, methacrylonitrile, maleic anhydride and N-substituted maleimide and a graft copolymer.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: October 28, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Siebourg, Edgar Leitz, Herbert Eichenauer
  • Patent number: 6639003
    Abstract: An additive for use in compounding rubber provides for improved process ability and enhanced resistance to cracking as a result of ozone exposure. The additive preferably comprises a polyethylene wax homopolymer having a number-average molecular weight number (Mn) of approximately 1000-1100 and melt viscosity of 20-40 mPas. The additive can be used in the manufacture of tires, belts, hoses, air springs and roofing membranes.
    Type: Grant
    Filed: September 11, 2001
    Date of Patent: October 28, 2003
    Inventors: Gregory G. Borsinger, Craig Cawley
  • Publication number: 20030199628
    Abstract: Aqueous-form additive systems, and methods of blending the same with a matrix resin, are disclosed whereby acrylic-based impact modifier compositions, butadiene-based impact modifier compositions and acrylic-based processing aids are used in aqueous form without the need for isolation to the traditional powder-form. The aqueous additive systems of the present invention provide a means for the design of novel additive compositions. The aqueous additive systems of the present invention also provide a great degree of flexibility in preparation of matrix resin blends and formulations. Additionally, the aqueous additive systems of the present invention allow for the reduced cost of manufacturing additives and reduced cost in blending matrix resin formulations.
    Type: Application
    Filed: May 15, 2003
    Publication date: October 23, 2003
    Inventors: Richard Henry Weese, Chuen-Shyong Chou, Eugene Patrick Dougherty, David John McDonald, Jean Marie Brady
  • Patent number: 6635693
    Abstract: A process for making composite colorant particles comprising, in order: I) suspending in an aqueous medium, under agitation, finely divided colorant particles to form an aqueous colorant mixture; II) adding to the aqueous colorant mixture an addition polymerization initiator; and III) causing the addition polymerization initiator to form a free radical while continuously introducing continuously to the aqueous colorant mixture a monomer mixture comprising: a) an addition polymerization initiator, and b) at least one ethylenically-unsaturated monomer; thereby forming the composite colorant particles having a colorant phase and a polymer phase.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: October 21, 2003
    Assignee: Eastman Kodak Company
    Inventors: Xiaoru Wang, Yongcai Wang, Edward Schofield
  • Patent number: 6630524
    Abstract: The present invention related to thermoplastic compositions comprising (A) thermoplastic polycarbonate; (B) a graft polymerisation product of (B-1) a mixture of (B-1.1) styrene, &agr;-methylstyrene, halogen or methyl ring-substituted styrene, C1-C8 alkyl methacrylates, or C1-C8 alkyl acrylate and (B-1.2) acrylonitrile, methacrylonitrile, C1-C8 alkyl methacrylates, C1-C8 alkyl acrylate, maleic anhydride, C1-C4 alkyl or phenyl N-substituted maleimides grafted on (B-2) a polymer with a glass transition temperature of below −10° C.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: October 7, 2003
    Assignee: Cheil Industries, Inc.
    Inventors: Jong Cheol Lim, Je Heun Lee, Ick Hwan Kwon
  • Patent number: 6627692
    Abstract: Provided are a long fiber-reinforced polypropylene resin composition and its moldings which have a high rigidity, impact resistance and durability, and especially have an extremely good repeated impact resistance and creep resistance, and are therefore suitable for various parts including automobile parts and other industrial parts.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: September 30, 2003
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventors: Koichi Saito, Toshimori Nakai, Nobukazu Atsumi, Hideshi Ishiwa
  • Publication number: 20030181573
    Abstract: A flame-retardant thermoplastic resin composition comprising (A) 100 parts by weight of a polycarbonate resin, (B) from 1 to 20 parts by weight of a polyorganosiloxane-containing graft copolymer obtained by polymerizing at least one vinyl monomer (b-2) in the presence of polyorganosiloxane particles (b-1), (C) from 0.05 to 1 part by weight of a fluororesin, and (D) from 0.03 to 2 parts by weight of an antioxidant.
    Type: Application
    Filed: March 4, 2003
    Publication date: September 25, 2003
    Inventors: Nobuo Miyatake, Hiroshi Tone, Akira Takaki
  • Patent number: 6624242
    Abstract: An aqueous dispersion of (a) 0.1-40% by wt. of a low molecular weight, low melting point, water-insoluble polymer in which the polymer particles have a size <10 microns, and (b) 0.001-30% by wt. of an anionic emulsifier.
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: September 23, 2003
    Assignee: ISP Investments Inc.
    Inventors: James F. Curry, Kolazi S. Narayanan, Ronald H. Goehner, Jr., Domingo I. Jon, George B. Beestman
  • Patent number: 6624227
    Abstract: The invention provides an aqueous coating composition comprising nonionically and/or anionically stabilized film-forming polymers and metallic pigments and a compound which is the reaction product of a phosphonic acid derivative, a hydroxy-functional addition polymers and, optionally a compound having a hydroxy group, in which the phosphonic acid derivative is selected from one or both of wherein R and R′ are selected from the group consisting of an aliphatic and an aromatic substituent having 1 to 25 carbon atoms optionally including heteroatoms of at least one of oxygen, phosphorus and silicon.
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: September 23, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Paul Peter Bruylants, Josef Huybrechts, Kenneth S. Kirshenbaum, Charles T. Berge