Reactant Contains At Least Two Ester Groups Patents (Class 525/81)
  • Patent number: 10968341
    Abstract: The present invention relates to a liquid composition comprising a monomer, a (meth)acrylic polymer and a multistage polymer. In particular the present invention it relates to liquid composition comprising a monomer, a (meth)acrylic polymer and a multistage polymer that can be used as a syrup. More particularly the present invention relates also to a process for preparing a liquid composition comprising a monomer, a (meth)acrylic polymer and a multistage polymer.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: April 6, 2021
    Assignee: Arkema France
    Inventors: Raber Inoubli, Philippe Hajji, Rosangela Pirri
  • Patent number: 10815370
    Abstract: The present invention relates to a liquid (meth) acrylic composition comprising a (meth) acrylic monomer, a (meth) acrylic polymer and a multistage polymer. In particular the present invention it relates to liquid composition comprising a (meth) acrylic monomer, a (meth) acrylic polymer and a multistage polymer that can be used as a syrup and especially as a syrup for impregnation. More particularly the present invention relates also to a process for preparing a liquid composition comprising a (meth) acrylic monomer, a (meth) acrylic polymer and a multistage polymer.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: October 27, 2020
    Assignee: Arkema France
    Inventors: Raber Inoubli, Philippe Hajji, Rosangela Pirri, Pierre Gerard
  • Patent number: 10800912
    Abstract: A resin film comprising a resin (A) and a multi-layered particle (B), the multi-layered particle comprising a layer (a) made of a polymer comprising 80 to 99.99% by mass of a methyl methacrylate unit, 0.01 to 2% by mass of a crosslinkable monomer unit and 0 to 19.99% by mass of additional copolymerizable monomer units, a layer (b) made of a polymer comprising 70 to 99.8% by mass of an alkyl acrylate unit, 0.2 to 10% by mass of a crosslinkable monomer unit and 0 to 29.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: October 13, 2020
    Assignee: KURARAY CO., LTD.
    Inventors: Hiroshi Ozawa, Yasuhito Kitade
  • Patent number: 10392463
    Abstract: A resin composition includes an acrylic resin and a graft copolymer having a gel content of 65% to 84%, wherein the graft copolymer is a multistage-polymerized graft copolymer obtained by a multistage polymerization including the polymerization stages (I) to (III). In the polymerization stage (I), a first monomer mixture and a polyfunctional monomer are polymerized in a presence of a primary alkyl mercaptan-based chain transfer agent and/or a secondary alkyl mercaptan-based chain transfer agent to obtain a first hard polymer. In the polymerization stage (II), a second monomer mixture and a polyfunctional monomer are polymerized to obtain a soft polymer. In the polymerization stage (III), a third monomer mixture and a polyfunctional monomer are polymerized to obtain a second hard polymer.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: August 27, 2019
    Assignee: KANEKA CORPORATION
    Inventors: Fuminobu Kitayama, Nobuyoshi Maizuru, Mitsuru Nakamura, Haruki Koyama
  • Patent number: 9034963
    Abstract: A transparent thermoplastic resin composition includes (A) a rubber-modified graft copolymer which is prepared by copolymerizing (a2) a (meth)acrylic acid alkyl ester monomer, (a3) a styrene-based monomer and (a4) an acrylonitrile-based monomer onto (a1) a butadiene-based rubber polymer; (B) a styrene-based copolymer having a glass transition temperature of about 90 to about 100° C. which is prepared by copolymerizing (b1) a methacrylic acid alkyl ester monomer, (b2) an acrylic acid alkyl ester monomer, (b3) a styrene-based monomer and (b4) an acrylonitrile-based monomer; and (C) a silicone oil. The composition can have improved whitening resistance at low temperatures and/or excellent impact strength.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: May 19, 2015
    Assignee: Cheil Industries Inc.
    Inventors: Jun Hwan Ahn, Il Jin Kim, Sun Hong Min
  • Patent number: 9029476
    Abstract: A composition comprising: a blended product of: a matrix polymer; and from 0.05 to 2.5 wt % diffuser polymeric particles, wherein the diffuser polymeric particles are characterized by an average diameter from 2.0 to 8 micrometers, a particle size distribution such that at least 90 wt % of the polymer particles fall within ±30% of the volume average particle size, a refractive index, RI, from 1.50 to 1.55; a crosslinking level great than 4%; and wherein the diffuser polymeric particles are produced using at least one alkyl(meth)acrylate monomer copolymerized with from 5 wt % to 25 wt % crosslinking monomer selected from the group consisting of aliphatic crosslinking monomers, aromatic crosslinking monomers, and combinations thereof, and optionally, one or more comonomers selected from the group consisting of aryl(meth)acrylate monomers and monovinyl arenes is provided.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: May 12, 2015
    Assignee: Rohm and Haas Company
    Inventors: Hailan Guo, Eric G. Lundquist, Luu Le
  • Patent number: 8362147
    Abstract: A thermoplastic resin composition of the present invention capable of improving the strength and surface gloss of a molded article is comprising 100 parts by weight of a thermoplastic resin (a) and 0.5 to 30 parts by weight of a core-shell polymer composition (b), wherein the core-shell polymer composition (b) is obtained by polymerizing a shell-constituting component in the presence of a core obtained by polymerizing a core-constituting component, the core-constituting component contains 70% to 99.95% by weight of an alkyl acrylate having an alkyl group of 2 to 18 carbon atoms, 0.
    Type: Grant
    Filed: December 25, 2008
    Date of Patent: January 29, 2013
    Assignee: Kaneka Corporation
    Inventors: Hirotsugu Yamada, Koji Yui
  • Patent number: 8197710
    Abstract: A polymerizable compound represented by general formula (1): wherein Z1 and Z2 each represent a (meth)acryloyloxy group; X1 and X2 each independently represent a single bond, an optionally branched alkylene group having 1 to 8 carbon atoms, an ether linkage, —COO—, —OCO—, —OCOO—, a 6-membered ring optionally having a substituent, or a combination thereof; R1 represents —R?, —OR?, —CO—R?, or —OCO—R?; R? represents a halogen atom, an optionally branched alkyl group having 1 to 8 carbon atoms, or a 6-membered ring optionally having a substituent, L1 and L2 each independently represent a member selected from a single bond, —CH2CH2—, —CH?CH—, —C?C—, —CH2O—, —OCH2—, —COO—, and —OCO—; m represents an integer of 1 to 4; and the R1's may be the same or different.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: June 12, 2012
    Assignee: Adeka Corporation
    Inventors: Rieko Hamada, Masatomi Irisawa, Kiyoshi Murata
  • Patent number: 8084543
    Abstract: Light-scattering compositions comprising diffuser polymer particles are disclosed. Also disclosed are methods of making and using the light-scattering compositions.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: December 27, 2011
    Assignee: Rohm and Haas Company
    Inventors: Edward E. LaFleur, Jiun-Chen Wu
  • Patent number: 8008397
    Abstract: Provided are a rubber latex having a multi-layer structure, wherein an inner-layer rubber latex has a refractive index greater than that of an outer-layer rubber latex, a graft copolymer prepared from the rubber latex, a polyvinyl chloride (PVC) resin blend containing the graft copolymer, and a method of preparing the rubber latex. The PVC resin blend containing the graft copolymer including the rubber latex according to the present invention has improved color property and low-temperature impact strength than conventional PVC resins.
    Type: Grant
    Filed: August 8, 2006
    Date of Patent: August 30, 2011
    Assignee: LG Chem, Ltd.
    Inventors: Yoon Ho Kim, Wonsuk Jang, Geon Soo Kim
  • Patent number: 7906582
    Abstract: A polymerizable composition is provided that includes a compound represented by Formula (I), a macromolecule having a monomer unit represented by Formula (II) and/or another addition-polymerization type macromolecule, and a macromolecular filler. In Formula (I) and (II), Q1 denotes a cyano group or a —COX2 group, X1 denotes a hydrogen atom, organic residue, or polymer chain bonded to carbon atom CA via a heteroatom, or a halogen atom, X2 denotes a hydrogen atom, organic residue, or polymer chain bonded to the carbonyl group via a heteroatom, or a halogen atom, Ra and Rb independently denote a hydrogen atom, a halogen atom, a cyano group, or an organic residue, and X1 and X2, Ra and Rb, and X1 and Ra or Rb may be bonded to each other to form a cyclic structure. There are also provided a tacky material produced by forming on a support a 10 to 200 ?m layer that includes the polymerizable composition, and an adhesive that includes the polymerizable composition.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: March 15, 2011
    Assignee: FUJIFILM Corporation
    Inventor: Kazuto Kunita
  • Patent number: 7893162
    Abstract: Light-scattering compositions comprising diffuser polymer particles are disclosed. Also disclosed are methods of making and using the light-scattering compositions.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: February 22, 2011
    Assignee: Rohm and Haas Company
    Inventors: Edward E. Lafleur, Jiun-Chen Wu
  • Patent number: 7847021
    Abstract: A modified polyolefin resin comprising a copolymer having a structure that a propylene-based polyolefin segment (a) and a segment (b) containing a lactic acid as a constituent are bonded in a block state and/or a graft state through a vinyl monomer having a hydroxyl group, wherein a number average molecular weight of the propylene-based polyolefin segment (a) is from 1,000 to 100,000, a number average molecular weight of the segment (b) containing lactic acid as a constituent is from 1,000 to 200,000, and a weight composition of the propylene-based polyolefin segment (a) and the segment (b) containing lactic acid as a constituent is from 10/90 to 90/10. The modified polyolefin resin can be used in a resin composition containing an aliphatic polyester resin (A), a polyolefin resin (B) and the modified polyolefin resin (C). The composition can exhibit excellent heat resistance and impact resistance and can be used for molding various parts.
    Type: Grant
    Filed: February 9, 2005
    Date of Patent: December 7, 2010
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Hosei Shinoda, Takeshi Kashima, Masahiro Enna, Shinichi Kojoh, Hideyuki Kaneko, Shingo Matsuo, Nobuo Kawahara, Tomoaki Matsugi, Yuichi Matsuda, Takayuki Onogi, Fumio Kageyama
  • Patent number: 7794834
    Abstract: A method of making a liquid crystalline fiber is disclosed. A copolymer having a liquid crystalline side group and a crosslinking side group is crosslinked. A fiber of the crosslinking copolymer is drawn before the crosslinking reaction is complete.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: September 14, 2010
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Jawad Naciri, Hong Jeon, Patrick N Keller, Banahalli R Ratna
  • Patent number: 7683203
    Abstract: The polymerizable compound of the present invention is represented by general formula (1) below and can provide a composition that is polymerizable near ambient temperature and exists in a liquid crystal phase at low temperatures. The composition and a (co)polymer of the polymerizable compound of the present invention are liquid crystal substances useful as optically anisotropic materials. (In the formula, each of rings A1 to A3 represents a benzene ring, cyclohexane ring, etc.; each of X to Z represents a C1-8 alkyl or alkoxy group, C2-6 alkenyl group, halogen atom, cyano group, or CH2?CR3—COO—; each of R1 to R3 represents a hydrogen atom, methyl group, or halogen atom; each of L1 to L3 represents —CH2CH2COO—, —COO—, —OCO—, —CH2CH2—, —O(CH2)f— (herein, f=1-8), etc.; n represents 0 or 1; and a to c represent such numbers that the polymerizable compound has at least one or more of any of X, Y, and Z).
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: March 23, 2010
    Assignee: Adeka Corporation
    Inventors: Masatomi Irisawa, Tatsunori Kobayashi, Mineki Hasegawa
  • Publication number: 20040167280
    Abstract: A coating composition comprising (1) an anionic surfactant comprising a sulfonic acid salt, (2) a sol of fine inorganic oxide particles, (3) a silicon compound having one acryl or methacryl group and a hydrolyzable group or a product of hydrolysis of the compound, (4) a compound having at least two photopolymerizable unsaturated groups, and (5) a photopolymerization initiator; and a coated article obtained by applying the coating composition to a base and then photocuring the coating. The coated article combines antifogging properties with abrasion resistance sufficient for practical use.
    Type: Application
    Filed: December 12, 2003
    Publication date: August 26, 2004
    Inventor: Hisayuki Kayanoki
  • Patent number: 6646046
    Abstract: A pressure-sensitive adhesive composition comprising a water-soluble polymer A, a water-insoluble component B, a water-incompatible solvent C that dissolves the water-insoluble component B and is incompatible with water, a water-soluble plasticizer D, and water, wherein the pressure-sensitive adhesive composition in a dry state has water solubility according to Technical Association of The Pulp and Paper Industry Useful Method 213 (TAPPI UM 213). Also disclosed are a method for producing a pressure-sensitive adhesive composition according to the present invention, comprising the steps of: preliminarily preparing a true nonaqueous solution of a water-insoluble component B in a water-incompatible solvent C, and mixing the true nonaqueous solution with an aqueous solution of at least one member selected from the group consisting of a water-soluble polymer A and a water-soluble plasticizer D, and a pressure-sensitive adhesive and a pressure-sensitive adhesive tape that use the composition.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: November 11, 2003
    Assignees: Permachel, Nitto Denko Corporation
    Inventors: Svetlana I. Contrada, Koichi Nakamura, David R. Hamblin, Jr.
  • Publication number: 20020055587
    Abstract: Adhesive compositions comprising (a) adhesive polymers or copolymers prepared from monomers selected from the group consisting of styrene, butadiene, acrylonitrile, ethylene, vinyl acetate, acrylic acid, esters of acrylic acid, methacrylic acid and esters of methacrylic acid or combinations thereof; and (b) from 1 to 55% on a dry weight basis of a polymeric additive comprising a low molecular weight polymer having a number average molecular weight of 20,000 or less and which comprises polymerized units of at least one ethylenically unsaturated monomer and 5 weight percent or less of a polymerized acid-containing monomer. In preferred form, the polymeric additive is polymerized in the presence of a metal chelate chain transfer agent. In certain embodiments, the polymeric additive has a midpoint Tg of at least 0° C. or greater. Further embodiments of the present invention include methods for forming the polymeric additive in situ in the adhesive composition.
    Type: Application
    Filed: September 12, 2001
    Publication date: May 9, 2002
    Inventors: Willie Lau, Kim Sang Ho, Paul Ralph Van Rheenen
  • Patent number: 6040062
    Abstract: Environmental etch resistant coatings are described. The coatings are derived from aqueous, curable coating compositions comprising:(a) a carbamate-functional grafted acrylic polymer that comprises the reaction product of a first acrylic polymer and a second acrylic polymer, with at least one of the first and second acrylic polymers having groups that impart water dispersibility to the grafted acrylic polymer, and at least one of the first and second acrylic polymers having carbamate functionality; and(b) a second component comprising a compound having a plurality of functional groups that are reactive with the carbamate functionality.
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: March 21, 2000
    Assignee: BASF Corporation
    Inventors: John D. McGee, Donald H. Campbell, John W. Rehfuss
  • Patent number: 5726244
    Abstract: Environmental etch resistant coatings are described. The coatings are derived from aqueous, curable coating compositions comprising:(a) a carbamate-functional grafted acrylic polymer that comprises the reaction product of a first acrylic polymer and a second acrylic polymer, with at least one of the first and second acrylic polymers having groups that impart water dispersibility to the grafted acrylic polymer, and at least one of the first and second acrylic polymers having carbamate functionality; and(b) a second component comprising a compound having a plurality of functional groups that are reactive with the carbamate functionality.
    Type: Grant
    Filed: August 10, 1995
    Date of Patent: March 10, 1998
    Assignee: BASF Corporation
    Inventors: John D. McGee, Donald H. Campbell, John W. Rehfuss
  • Patent number: 5500457
    Abstract: A water-based toner-receptive composition suitable for electrophotographic or xerographic imaging, comprising:a) from about 65 to about 99 parts of a transparent film-forming core/shell latex polymer, wherein the ratio of core to shell of said core/shell latex polymer ranges from about 10/90 to about 90/10, with the core having a lower T.sub.g than the shell;b) from about 1 to about 15 parts polymeric particles; andc) from 0 to about 20 parts of an antistatic agent selected from the group consisting of cationic agents, anionic agents, fluorinated agents, and nonionic agents.
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: March 19, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Manisha Sarkar, Ying-Yuh Lu
  • Patent number: 5442012
    Abstract: Core/shell additives, useful in modifying the processing and/or physical properties of poly(vinyl chloride) and other thermoplastic matrix polymers, are prepared separately at small particle sizes by emulsion polymerization, co-agglomerated, further encapsulated by a final shell, and isolated by spray-drying or coagulation. The isolated powders are readily re-dispersed to their original particle sizes in the matrix polymer.
    Type: Grant
    Filed: October 26, 1993
    Date of Patent: August 15, 1995
    Assignee: Rohm and Haas Company
    Inventors: James S. Kempner, Hsing-Yeh Parker, Janis C. Stevenson, Morris C. Wills, Judith L. Allison
  • Patent number: 5393817
    Abstract: Molding materials based on polymethyl methacrylate comprising essentiallyA) from 99.99 to 95.0% by weight of a mixture comprising essentiallya.sub.1) from 5 to 95% by weight of polymethyl methacrylate, obtainable by polymerizing a mixture comprising essentiallya.sub.11) from 80 to 100% by weight of methyl methacrylate anda.sub.12) from 0 to 20% by weight of a C.sub.1 -C.sub.20 -alkyl ester of acrylic acid, anda.sub.2) from 95 to 5% by weight of a multistage graft copolymer based on a C.sub.1 -C.sub.20 -alkyl ester of acrylic and/or methacrylic acid andB) from 0.01 to 5.0% by weight of a polysiloxane of the general formula I ##STR1## where R.sup.1 is C.sub.1 -C.sub.6 -alkyl or C.sub.6 -C.sub.10 -aryl,R.sup.2 is hydroxy-C.sub.1 -C.sub.6 -alkyl or amino-C.sub.1 -C.sub.6 -alkyl, andn is a natural number from 5 to 200.
    Type: Grant
    Filed: January 11, 1994
    Date of Patent: February 28, 1995
    Assignee: BASF Aktiengesellschaft
    Inventors: Andreas Deckers, Norbert Guentherberg, Norbert Niessner
  • Patent number: 5382625
    Abstract: Particulate graft polymers composed of a core (a) of cross-linked diene rubber, a first envelope (b) of a cross-linked acrylate rubber, a second envelope (c) of a copolymer of resin-forming monomers and polyallyl monomers having at least three allyl groups in the molecule, and a third envelope (d) of a copolymer or homopolymer of resin forming monomers.
    Type: Grant
    Filed: December 12, 1985
    Date of Patent: January 17, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Christian Lindner, Walter Uerdingen, Karl-Heinz Ott, hans-Eberhard Braese
  • Patent number: 5371142
    Abstract: A thermoplastic resin composition comprising 1 to 300 parts by weight of a copolymer (A) which is obtainable by polymerizing 0.1 to 400 parts by weight of an unsaturated epoxy monomer and 0 to 1,000 parts by weight of other copolymerizable monomer in the presence of 100 parts by weight of an ethylene-.alpha.-olefin base rubber, and 100 parts by weight of a mixture comprising 90 to 10% by weight of a polycarbonate resin (B) and 10 to 90% by weight of a saturated polyester (C), which can give a molded article having improved balance among heat resistance, chemical resistance, impact resistance and a shrinkage factor; falling ball impact resistance; weld strength; and appearance.
    Type: Grant
    Filed: July 9, 1993
    Date of Patent: December 6, 1994
    Assignee: Sumitomo Dow Limited
    Inventors: Yoshiaki Nishikubo, Ichiro Sato, Masahiro Shinohata
  • Patent number: 5358566
    Abstract: An aqueous solution, for use as a cement dispersing agent, of a polymer salt, which is formed by reacting a polycarboxylic acid with a nitrogenous acrylic polymer.
    Type: Grant
    Filed: November 5, 1990
    Date of Patent: October 25, 1994
    Assignee: Sandoz Ltd.
    Inventors: Yoshio Tanaka, Minoru Yaguchi, Teruhiko Yamamoto
  • Patent number: 5346954
    Abstract: Polymer particles in a size range between 2 and 15 micrometers, and having a refractive index close to, but not identical with, that of a matrix polymer and optionally having one or more enclosing shells, the outer shell being compatible with the matrix polymer, impart light-diffusing properties to the matrix polymer without degrading its physical properties, while the particles having a closer refractive index match to the matrix polymer impart gloss reduction to the surface of the matrix polymer.
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: September 13, 1994
    Assignee: Rohm and Haas Company
    Inventors: Jiun-Chen Wu, William J. Work, David L. Dunkelberger, Newman M. Bortnick
  • Patent number: 5247025
    Abstract: Graft copolymers obtained byA) emulsion polymerization of from 5 to 35% by weight of a monomer mixture ofa.sub.1) 60-80% by weight of one or more vinylaromatic monomers,a.sub.2) 20-40% by weight of one or more ethylenically unsaturated nitriles,B) subsequent emulsion polymerization, in the presence of the emulsion polymer obtained in stage A), of 20-45% by weight of a monomer mixture ofb.sub.1) 50-75% by weight of one or more vinylaromatic monomers,b.sub.2) 25-50% by weight of one or more C.sub.1 -C.sub.18 -alkyl acrylates,C) subsequent emulsion polymerization, in the presence of the emulsion polymer obtained in stage B), of 5-35% by weight of a monomer mixture ofc.sub.1) 60-80% by weight of one or more vinylaromatic monomers,c.sub.2) 20-40% by weight of one or more ethylenically unsaturated nitriles,D) subsequent emulsion polymerization, in the presence of the emulsion polymer obtained in stage C), of 15-45% by weight of a monomer mixture ofd.sub.1) 80-99.9% by weight of one or more C.sub.1 -C.sub.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: September 21, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans-Helmut Goertz, Guenter Hatzmann, Werner Oschmann
  • Patent number: 5237004
    Abstract: Polymer particles in a size range between 2 and 15 micrometers, and having a refractive index close to, but not identical with, that of a matrix polymer and optionally having one or more enclosing shells, the outer shell being compatible with the matrix polymer, impart light-diffusing properties to the matrix polymer without degrading its physical properties, while the particles having a closer refractive index match to the matrix polymer impart gloss reduction to the surface of the matrix polymer.
    Type: Grant
    Filed: April 2, 1991
    Date of Patent: August 17, 1993
    Assignee: Rohm and Haas Company
    Inventors: Jiun-Chen Wu, William J. Work, David L. Dunkelberger, Newman M. Bortnick
  • Patent number: 5235012
    Abstract: An improved method for the suspension polymerization is proposed which gives a PVC resin product having an increased plasticizer absorptivity and greatly decreased content of fish eyes. The invention can be achieved by additionally adding a limited volume of water into the polymerization mixture under proceeding of the polymerization reaction within a specified period of 30 to 70% monomer conversion and at such a controlled rate as not to unduly decrease the pressure inside of the reactor.
    Type: Grant
    Filed: April 21, 1992
    Date of Patent: August 10, 1993
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Ichiro Kaneko, Tadashi Amano, Toshimichi Koga
  • Patent number: 5194498
    Abstract: This invention relates to poly(vinyl chloride) injection molding compositions which contain novel additive polymers which modify the rheology characteristics of the composition, and to the novel additive polymers themselves.
    Type: Grant
    Filed: September 9, 1991
    Date of Patent: March 16, 1993
    Assignee: Rohm and Haas Company
    Inventors: Janis C. Stevenson, Hsing-Yeh Parker
  • Patent number: 5183851
    Abstract: This invention relates to low haze impact-resistant transparent compositions, comprising:(a) 40-99% by weight of a thermoplastic resin based on homopolymers and/or copolymers of alkyl-methacrylates with minor amounts of alkyl-acrylates, wherein the alkyl group contains from 1 to 8 carbon atoms, and(b) 60-1% by weight of a polymer having a multi-layer structure, based on elastomers arranged sequentially to thermoplastic resins as defined in step (a).
    Type: Grant
    Filed: September 3, 1991
    Date of Patent: February 2, 1993
    Assignee: ELF Atochem Italia S.r.l.
    Inventors: Francesco Visani, Carlo Tavazzani, Giuseppe Ajroldi, Giovanni Castiglioni
  • Patent number: 5162435
    Abstract: A resin composition comprising 20-77 wt. % of polyolefin (A), 20-77 wt. % of polyphenylene ether resin (B), 2-50 wt. % of polymer (C) combining alkenyl aromatic comound polymerization chain and aliphatic hydrocarbon chain in the same molecule, and 1-25 wt. % of ester group containing ethylene copolymer (D).
    Type: Grant
    Filed: October 11, 1989
    Date of Patent: November 10, 1992
    Inventors: Nobuhiro Shibuya, Takeyoshi Nishio
  • Patent number: 5049614
    Abstract: Blends based on vinyl-aromatic polymers having high tenacity and impact strength, comprising:a vinyl-aromatic copolymer containing from 2 to 25% by weight of an ethylenically unsaturated nitrile and a rubber amount not higher than 15% by weight; anda grafted polymer consisting of an elastomeric core having a transition temperature of the second order lower than 10.degree. C. containing, in the grafted form, chains of vinyl monomers.
    Type: Grant
    Filed: March 27, 1990
    Date of Patent: September 17, 1991
    Assignee: Montedipe S.p.A.
    Inventor: Gianfranco Biglione
  • Patent number: 5003004
    Abstract: A blend of a softer continuous phase polymer reinforced with harder acrylic star polymer particles having reactive functional groups with crosslinking ability built in or provided by a third polymer. The harder polymer has a T.sub.g at least 10.degree. C. above that of the softer polymer, and the acrylic star polymer is preferably made by group transfer polymerization. This blend provides coating compositions, films and bulk polymer with enhanced toughness and flexibility.
    Type: Grant
    Filed: October 25, 1988
    Date of Patent: March 26, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: John A. Simms
  • Patent number: 4897449
    Abstract: A multilayer interpolymer material of an elastomeric inner phase polymerized from (a) 50-99.9 parts of at least one among: conjugated dienes and alkyl and aralkyl acrylates, (b) 0-49.9 parts of at least one copolymerizable monomer, (c) 0.05-8 parts of at least one crosslinking monomer, and (d) 0.05-6 parts of at least one grafting monomer, and a nonelastomeric outer phase, polymerized from (a) 50-99.9 parts by weight of at least one among: alkyl methacrylates, vinyl aromatic hydrocarbons and unsaturated nitriles, (b) 0.1-50 parts of at least one copolymerizable monomer, and (c) 0-5 parts of at least one chain-limiting agent, the parts being given by weight, it being possible for the said polymer to comprise a nonelastomeric or else elastomeric core phase without grafting and crosslinking monomers. Two populations of particles of mean diameter of approximately 40-150 nm and approximately 160-500 nm respectively are mixed in given ratios. This improves the impact strength of the resultant matrices.
    Type: Grant
    Filed: January 29, 1988
    Date of Patent: January 30, 1990
    Assignee: Norsolor
    Inventors: Patrice Gaillard, Jean-Claude Robinet
  • Patent number: 4861677
    Abstract: A blend of ethylene vinyl acetate copolymer, ethylene vinyl acetate copolymer modified by grafting with a comonomer containing pendant acid or acid derivative functionality, and impact-modified polystyrene provides a useful adhesive particularly for bonding polystyrene to gas barrier polymers.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: August 29, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: I-Hwa Lee
  • Patent number: 4861676
    Abstract: A blend of ethylene copolymer, ethylene copolymer modified by grafting with a comonomer containing pendant acid or acid derivative functionality, styrene polymer, and alicyclic resin modifier or stabilized rosin ester provides a useful adhesive, particularly for bonding polystyrene to barrier polymers.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: August 29, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: I-Hwa Lee
  • Patent number: 4812516
    Abstract: A polymer composition obtained by mixing, in an emulsion state,(A) from 20 to 90% by weight (as solid content of polymer) of an emulsion of polymer component (A) which is a polymer of a vinyl monomer and has a glass transition temperature of higher than 20.degree. C., a gel content of not higher than 10% and a solubility parameter of from 8.0 to 11.0 (cal/cc) .sup.1/2 and which has a weight average molecular weight, based on polystyrene, of at least 1.5.times.10.sup.5, and(B) from 10 to 80% by weight (as solid content of polymer) of an emulsion of polymer component (B) which is a homopolymer of an acrylate monomer, a copolymer of acrylate monomers or a copolymer of an acrylate monomer with other copolymerizable monomer and has a glass transition temperature of not higher than 20.degree. C., a gel content of not higher than 70% and a solubility parameter of from 8.4 to 9.8 (cal/cc).sup.1/2,and separating the polymer from the emulsion mixture.
    Type: Grant
    Filed: June 1, 1988
    Date of Patent: March 14, 1989
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventor: Tetsuro Maeda
  • Patent number: 4801647
    Abstract: A thermoplastic elastomeric composition comprising a dynamically crosslinked grafted polyolefin copolymer elastomer and a thermoplastic crystalline polyolefin is disclosed. The crosslinked elastomer is dispersed in the thermoplastic crystalline polyolefin which is present as the continuous phase. The grafted elastomer is ethylene/propylene/diene terpolymer or ethylene/propylene copolymer grafted with fumaric acid, maleic acid, maleic anhydride or derivatives thereof capable of reacting with diamine crosslinking agents.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: January 31, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: James R. Wolfe, Jr.
  • Patent number: 4801646
    Abstract: Low gloss impact and weather resistant thermoplastic resins comprising a hard matrix polymer and a grafted alkylacrylate rubber having a core of a substantially uncrosslinked alkylacrylate polymer and a graftable overpolymer layer of a high crosslink density alkylacrylate polymer.
    Type: Grant
    Filed: January 16, 1987
    Date of Patent: January 31, 1989
    Assignee: The Dow Chemical Company
    Inventor: David E. Henton
  • Patent number: 4762882
    Abstract: A modified polyolefin resin and a composition containing therein such modified polyolefin, having excellent adhesive property and heat-sealing property at the time of high speed forming operations, the modified polyolefin resin consisting essentially of: a copolymer of ethylene and .alpha.-olefin having 4 or more carbon atoms, the copolymer having a density in a range of from 0.890 to 0.910 g/cm.sup.3, a ratio of a weight-average molecular weight (Mw) to a number-average molecular weight (Mn) of Mw/Mn=2 to 15, and a product of a melt tension (g) and a melt-index (g/10 min.) of a molten resin measured at 160.degree. C. of 4 or below; and unsaturated carboxylic acid or derivatives thereof grafted on the ethylene type copolymer at a ratio of from 0.01 to 3% by weight.
    Type: Grant
    Filed: June 26, 1986
    Date of Patent: August 9, 1988
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Shigeaki Okano, Katsuhiko Hayashi, Yoshiteru Sakurazawa, Yoshinori Suga
  • Patent number: 4753988
    Abstract: Impact modified copolymers of vinyl aromatic, ethylenically unsaturated nitrile and, optionally, methyl methacrylate monomer, wherein the impact modifier comprises (a) large grafted rubber particles of a rubbery alkyl acrylate polymer having a particle size from about 0.5.mu. to 0.8.mu., 0.04 to 0.5 percent by weight of a polymerized crosslinking monomer and from 0.5 to 40 percent grafted rigid phase, and (b) small grafted rubber particles of a rubbery alkyl acrylate polymer having a particle size from about 0.05.mu. to about 0.20.mu., 0.25 to about 2.0 percent of a crosslinking monomer, provided that the weight percentage of crosslinking monomer is at least twice the weight percentage of the crosslinking monomer in the large particle, and from about 15 to about 60 percent by weight grafted rigid phase.
    Type: Grant
    Filed: February 18, 1987
    Date of Patent: June 28, 1988
    Assignee: The Dow Chemical Company
    Inventors: David E. Henton, Edward B. Anthony
  • Patent number: 4740553
    Abstract: A thermoplastic resin composition composed of a mixture comprising:(A) from 5 to 94% by weight of an elastomer-containing styrene resin comprising an elastomer component and a resin component having a glass transition temperature of higher than 20.degree. C., with a covalent substance of the elastomer and resin components being present at the interface between the elastomer component constituting a dispersed phase and the resin component constituting a continuous phase;(B) from 5 to 94% by weight of a polycarbonate resin; and(C) from 0.1 to 20% by weight of a polymer of a monomer containing an acrylate monomer having a solubility parameter of from 8.4 to 9.8 (cal/cc).sup.1/2, a glass transition temperature of not higher than 20.degree. C. and a gel content of not higher than 70% by weight.
    Type: Grant
    Filed: October 8, 1986
    Date of Patent: April 26, 1988
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventor: Tetsuro Maeda
  • Patent number: 4728463
    Abstract: Brominated styrene-maleate copolymer containing at least 50 weight percent bromine and its use as a fire retardant.
    Type: Grant
    Filed: August 18, 1986
    Date of Patent: March 1, 1988
    Assignee: Ethyl Corporation
    Inventors: Burton J. Sutker, Gen-Shing Ti, Mo A. Khuddus
  • Patent number: 4713420
    Abstract: Rubber modified styrene-acrylonitrile polymers (ABS) having three different types of rubber particles. One type is small, usually emulsion-produced particle. The second is a large emulsion-produced particle. The third is a large, mass-produced particle. Such compositions exhibit good combinations of toughness and gloss.
    Type: Grant
    Filed: May 21, 1982
    Date of Patent: December 15, 1987
    Assignee: The Dow Chemical Company
    Inventor: David E. Henton
  • Patent number: 4699947
    Abstract: A weather and impact resistant resin composition which comprises: a graft copolymer (A) composed of a continuous phase comprising from 10 to 90% by weight of residues of an aromatic vinyl monomer, from 10 to 40% by weight of residues of an .alpha.,.beta.-unsaturated nitrile monomer and from 0 to 80% by weight of residues of methyl methacrylate, and particles of an acrylate rubber having a weight average particle size of from 0.1 to 0.45 .mu.m dispersed in the continuous phase, said acrylate rubber comprising from 70 to 98% by weight of residues of an alkyl acrylate having from 2 to 12 carbon atoms, from 1.92 to 27% by weight of residues of a vinyl monomer copolymerizable with the alkyl acrylate and from 0.08 to 3% by weight of residues of a multifunctional vinyl monomer; a graft copolymer (B) composed of a continuous phase comprising from 10 to 90% by weight of residues of an aromatic vinyl monomer, from 10 to 40% by weight of residues of an .alpha.,.beta.
    Type: Grant
    Filed: December 30, 1985
    Date of Patent: October 13, 1987
    Assignee: Mitsubishi Monsanto Chemical Company
    Inventor: Takashi Kokubo
  • Patent number: 4699948
    Abstract: Disclosed is a vinyl chloride polymer composition comprising:(i) 100 parts by weight of a vinyl chloride polymer containing at least 80 wt. % of vinyl chloride units, and(ii) 0.05 to 25 wt. parts of a three-stage polymer (II), which is obtained by polymerizing 10 to 30 wt. parts of at least one monomer (B), which is selected from acrylic acid esters, methacrylic acid esters, aromatic vinyl compounds, cyano-vinyl compounds and vinyl ester compounds so that the glass transition temperature of a polymer obtained by separately polymerizing the monomer (B) is 0.degree. to 60.degree. C., in the presence of 45 to 85 wt. parts of a methyl methacrylate polymer (A) containing at least 80 wt. % of methyl methacrylate units; and then polymerizing 5 to 25 wt. parts of a methyl methacrylate monomer or monomer mixture (C) containing at least 80 wt. % of methyl methacrylate in the presence of the obtained copolymer comprising the components (A) and (B) so that the total amount of the components (A), (B), and (C) is 100 wt.
    Type: Grant
    Filed: November 22, 1985
    Date of Patent: October 13, 1987
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Kazuo Kishida, Kazuo Ueda, Masahiro Kaneda
  • Patent number: 4696973
    Abstract: Am impact modifier comprising a blend of 100 parts by weight of a graft copolymer (A) obtained by graft-polymerizing in a single or more stages a monomer or monomer mixture consisting of 95 to 100% by weight of at least one monomer selected from the group consisting of alkyl acrylates, alkyl methacrylates, aromatic vinyl compounds and vinyl cyanide compounds and 0 to 5% by weight of a polyfunctional crosslinking agent on an acrylic elastomer mainly composed of an alkyl acrylate and containing 0.1 to 5% by weight of a polyfunctional crosslinking agent and/or a butadiene elastomer composed of a polybutadiene or a copolymer of 50% by weight or more of a butadiene and 50% by weight or less of other vinyl compound copolymerizable therewith and containing 0 to 5% by weight of a polyfunctional crosslinking agent, and 0.
    Type: Grant
    Filed: August 20, 1984
    Date of Patent: September 29, 1987
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Kazumasa Kamata, Kazuo Ueda, Kiyokazu Kitai
  • Patent number: 4670349
    Abstract: An adhesive resin composition comprising(A) 100 parts by weight of a polymer having a crystallinity, determined by X-ray diffractometry, of not more than 40% selected from the group consisting of an ethylene/vinyl acetate copolymer and ethylene/alpha-olefin random copolymers,(B) 1 to 50 parts by weight of modified polyethylene having a melt flow rate of 0.01 to 50 g/10 minutes and containing 0.01 to 10% by weight of an unsaturated carboxylic acid or its derivative grafted thereto, and(C) 1 to 125 parts by weight of a hydrogenated aromatic petroleum resin in which at least 70% of the romatic ring is hydrogenated;provided that the total amount of the modified polyethylene (B) and the hydrogenated aromatic petroleum resin (C) is not more than 150 parts by weight.
    Type: Grant
    Filed: December 17, 1985
    Date of Patent: June 2, 1987
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Mikio Nakagawa, Koichiro Sato, Kuniaki Kanemoto, Akito Nishimura