Patents by Inventor Hideyuki Shigemitsu

Hideyuki Shigemitsu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7910028
    Abstract: The direct vapor depositing resin composition of the present invention comprises at least one selected from the group consisting of (A-I): a graft copolymer obtained by graft-polymerizing one or more monomers or a monomer mixture to a complex rubber-like polymer (G) composed of a polyorganosiloxane and a (meth)acrylate-based polymer and (A-II): a graft copolymer obtained by graft-polymerizing one or more monomers or a monomer mixture including an alkyl (meth)acrylate as an essential component to a rubber-like polymer (R) in which the content of diene units is 30% by weight or less in 100% by weight of the whole rubber-like polymer. The direct vapor depositing resin composition of the present invention can provide a beautiful bright appearance after direct vapor deposition of a metal, further, has high level mechanical strengths such as impact strength and the like, and weather resistance, and is also excellent in hot plate welding property with a transparent resin such as PMMA resins, PC resins and the like.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: March 22, 2011
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Yoshihiro Nakai, Takahiro Ikebe, Keiji Obata, Hideyuki Shigemitsu
  • Publication number: 20100159134
    Abstract: The direct vapor depositing resin composition of the present invention comprises at least one selected from the group consisting of (A-I): a graft copolymer obtained by graft-polymerizing one or more monomers or a monomer mixture to a complex rubber-like polymer (G) composed of a polyorganosiloxane and a (meth)acrylate-based polymer and (A-II): a graft copolymer obtained by graft-polymerizing one or more monomers or a monomer mixture including an alkyl (meth)acrylate as an essential component to a rubber-like polymer (R) in which the content of diene units is 30% by weight or less in 100% by weight of the whole rubber-like polymer. The direct vapor depositing resin composition of the present invention can provide a beautiful bright appearance after direct vapor deposition of a metal, further, has high level mechanical strengths such as impact strength and the like, and weather resistance, and is also excellent in hot plate welding property with a transparent resin such as PMMA resins, PC resins and the like.
    Type: Application
    Filed: March 3, 2010
    Publication date: June 24, 2010
    Applicant: Mitsubishi Rayon co., Ltd.
    Inventors: Yoshihiro NAKAI, Takahiro Ikebe, Keiji Obata, Hideyuki Shigemitsu
  • Patent number: 7488775
    Abstract: A thermoplastic resin composition comprising 10 to 98 parts by weight of a graft polymer (1A) containing a rubber-like polymer (1G) having a diene unit content of 50% by weight or less, 2 to 50 parts by weight of a hydroxyl group-containing acrylic copolymer (1B) and 0 to 80 parts by weight of other thermoplastic resin (1F), wherein the rubber-like polymer (1G) is at least one selected from the group consisting of a diene-based rubber, a polyorganosiloxane-based rubber and an olefin-based rubber; and, a graft copolymer (2A) obtained by grafting a vinyl-based polymer to a (meth)acrylate-based rubber-like polymer (2G) expansion-treated with an acid group-containing copolymer latex (2K) wherein the (meth)acrylate-based rubber-like polymer contains two or more poly-functional monomer units.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: February 10, 2009
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Yoshihiro Nakai, Hideyuki Shigemitsu
  • Publication number: 20040249069
    Abstract: The direct vapor depositing resin composition of the present invention comprises at least one selected from the group consisting of (A-I): a graft copolymer obtained by graft-polymerizing one or more monomers or a monomer mixture to a complex rubber-like polymer (G) composed of a polyorganosiloxane and a (meth)acrylate-based polymer and (A-II): a graft copolymer obtained by graft-polymerizing one or more monomers or a monomer mixture including an alkyl(meth)acrylate as an essential component to a rubber-like polymer (R) in which the content of diene units is 30% by weight or less in 100% by weight of the whole rubber-like polymer. The direct vapor depositing resin composition of the present invention can provide a beautiful bright appearance after direct vapor deposition of a metal, further, has high level mechanical strengths such as impact strength and the like, and weather resistance, and is also excellent in hot plate welding property with a transparent resin such as PMMA resins, PC resins and the like.
    Type: Application
    Filed: February 5, 2004
    Publication date: December 9, 2004
    Inventors: Yoshihiro Nakai, Takahiro Ikebe, Keiji Obata, Hideyuki Shigemitsu
  • 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
  • Publication number: 20040143068
    Abstract: A modifier for thermoplastic resin, comprising polytetrafluoroethylene (A), and an alkyl (meth)acrylate-based polymer (B) containing 70% by weight or more of a constituent unit composed of an alkyl (meth)acrylate carrying an alkyl group having 1 to 4 carbon atoms; and a thermoplastic resin composition containing this modifier.
    Type: Application
    Filed: October 30, 2003
    Publication date: July 22, 2004
    Inventors: Souichiro Honda, Naofumi Ueno, Hideyuki Shigemitsu, Masahiro Oosuka
  • Publication number: 20040097648
    Abstract: A thermoplastic resin composition comprising 10 to 98 parts by weight of a graft polymer (1A) containing a rubber-like polymer (1G) having a diene unit content of 50% by weight or less, 2 to 50 parts by weight of a hydroxyl group-containing acrylic copolymer (1B) and 0 to 80 parts by weight of other thermoplastic resin (1F), wherein the rubber-like polymer (1G) is at least one selected from the group consisting of a diene-based rubber, a polyorganosiloxane-based rubber and an olefin-based rubber; and, a graft copolymer (2A) obtained by grafting a vinyl-based polymer to a (meth)acrylate-based rubber-like polymer (2G) expansion-treated with an acid group-containing copolymer latex (2K) wherein the (meth)acrylate-based rubber-like polymer contains two or more poly-functional monomer units.
    Type: Application
    Filed: December 18, 2003
    Publication date: May 20, 2004
    Inventors: Yoshihiro Nakai, Hideyuki Shigemitsu, Yukio Kitaike
  • Patent number: 5346952
    Abstract: Disclosed is a thermoplastic resin composition comprised of (A) 10-60 weight parts of a polyphenylene ether resin, (B) 20-70 weight parts of (b-1) an aromatic vinyl resin and/or (b-2) a copolymer of an aromatic vinyl monomer with a heterocyclic compound having a vinyl group and containing nitrogen as the hetero atom and (C) 10-60 weight parts of (c-1) a graft copolymer obtained by polymerizing an aromatic vinyl monomer, optionally with other vinyl monomer, in the presence of a butadiene type rubbery polymer or (c-2) a graft copolymer obtained by polymerizing an aromatic vinyl monomer and a heterocyclic compound having a vinyl group and containing nitrogen as the hereto atom, optionally with other ethylenically unsaturated compound, in the presence of a butadiene type rubbery polymer, wherein at least one of the components (B) and (C) is a polymer of the nitrogen-containing heterocyclic compound, and the total amount of the components (A), (B) and (C) is 100 parts by weight.
    Type: Grant
    Filed: April 30, 1993
    Date of Patent: September 13, 1994
    Assignee: Mitsubishi Rayon Company Ltd.
    Inventors: Masafumi Hongo, Hideki Yano, Hideyuki Shigemitsu
  • Patent number: 5284914
    Abstract: A thermoplastic polyester resin composition characterized by comprising30-70% by weight of a polyester resin (A) constituted mainly of a polyalkylene terephthalate,5-35% by weight of a graft polymer (B) obtained by graft-polymerizing at least one selected from the group consisting of an aromatic vinyl monomer and a methacrylate monomer in the presence of a rubbery polymer, and10-45% by weight of a polyphenylene ether resin (C) andresulting from blending these polymers so that the content of said polyester resin (A) may be higher than that of said polyphenylene ether resin (C).
    Type: Grant
    Filed: April 26, 1991
    Date of Patent: February 8, 1994
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Yutaka Toyooka, Masafumi Hongo, Hideyuki Shigemitsu
  • Patent number: 5110866
    Abstract: A thermoplastic polyester resin composition having an improved impact resistance is disclosed. This composition is comprised of (A) 30 to 70 weight parts of a polyester resin composed mainly of a polyalkylene terphthalate, (B) 5 to 28 weight parts of a polycarbonate resin, (C) 5 to 35 weight parts of a graft copolymer obtained by graft-polymerizing a monomer selected from aromatic vinyl monomers and methacrylic acid ester monomers in the presence of a rubbery polymer, and (D) 10 to 45 weight parts of a polyphenylene ether resin, which further comprises (E) 2 to 20 weight parts, per 100 weight parts of the resin composition comprising the components (A) through (D), of a copolymer having a main chain of a polyolefin copolymerized with glycidyl methacrylate and a side chain of a styrene polymer, in which the content of glycidyl methacrylate in the polyolefin copolymerized with glycidyl methacrylate is 5 to 30 weight %.
    Type: Grant
    Filed: March 5, 1990
    Date of Patent: May 5, 1992
    Assignee: Mitsubishi Rayon Company Ltd.
    Inventors: Masafumi Hongo, Hideyuki Shigemitsu
  • Patent number: 5049348
    Abstract: With the aim of preventing deterioration in properties of resins in the production of a thermoplastic resin compound by melting and kneading a polyester resin and a polyphenylene ether resin, a method for producing the thermoplastic resin compound comprising 30 to 70% by weight of a polyester resin (A) mainly comprising polyalkylene terephthalate and 70 to 30% by weight of a polyphenylene ether resin (B) mainly comprising polyphenylene ether comprises separately melting the component (A) and the component (B) and, after adjusting the ratio of viscosity (in poise) of the component (B) to that of the component (A) at a shear rate of 10.sup.3 (sec.sup.-1) to 10 or less, kneading the molten components (A) and (B) together.
    Type: Grant
    Filed: September 28, 1989
    Date of Patent: September 17, 1991
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Masafumi Hongo, Hideyuki Shigemitsu
  • Patent number: 4918132
    Abstract: A thermoplastic polyester resin composition comprising from 10 to 80% by weight of a thermoplastic polyester (A); from 5 to 55% by weight of a compound rubber type graft copolymer (B) having at least one vinyl monomer graft-polymerized onto a compound rubber composed of from 10 to 90% by weight of a polyorganosiloxane rubber and from 10 to 90% by weight of a polyalkyl (meth)acrylate rubber in a total amount of 100% by weight in an inseparably interlocking fashion and having an average particle size of from 0.08 to 0.6 .mu.m; from 5 to 70% by weight of a thermoplastic polyester elastomer (C); and from 0 to 60% by weight of a filler (D), with the total amount of components (A) to (D) being 100% by weight.
    Type: Grant
    Filed: September 20, 1988
    Date of Patent: April 17, 1990
    Assignee: Mitsubishi Rayon Company Limited
    Inventors: Masafumi Hongo, Hideyuki Shigemitsu, Naoki Yamamoto, Akira Yanagase
  • Patent number: 4888388
    Abstract: A polycarbonate resin composition comprising a polycarbonate resin (A) or a mixture (A') of a polycarbonate resin with a saturated polyester resin and/or a polyester elastomer, and a compound rubber type graft copolymer (B) having at least one vinyl monomer graft-polymerized onto a compound rubber composed of from 10 to 90% by weight of a polyorganosiloxane rubber and from 10 to 90% by weight of a polyalkyl (meth)acrylate rubber in a total amount of 100% by weight in an inseparable interlocking fashion and having an average particle size of from 0.08 to 0.6 .mu.m, or a mixture (B') of such a compound rubber type graft copolymer (B) with a vinyl monomer, wherein component (B) or (B') is in an amount such that the compound rubber is from 0.5 to 60% by weight based on the entire resin composition.
    Type: Grant
    Filed: September 20, 1988
    Date of Patent: December 19, 1989
    Assignee: Mitsubishi Rayon Company Limited
    Inventors: Masafumi Hongo, Hideyuki Shigemitsu, Naoki Yamamoto, Akira Yanagase
  • Patent number: 4877831
    Abstract: A polycarbonate resin composition excellent in chemical resistance, weather resistance, heat resistance, and low-temperature impact resistance, which comprises,either a polycarbonate resin (A) or a mixture (A') of the polycarbonate resin and a saturated polyester and/or a polyester elastomer andeither a siloxane based graft copolymer (B) obtained by graft polymerization of 95 to 10% by weight of at least one vinyl monomer onto 5 to 90% by weight of a polyorganosiloxane rubber which exhibits a degree of swelling of 3 to 30 as measured to toluene at 25.degree. C., contains constitutional units derived from a graft-linking agent, and has an average particle size of 0.08 to 0.8 .mu.m or a mixture (B) of the siloxane-based graft copolymer and a vinyl polymer,wherein the component (B) is blended so that the content of the polyorganosiloxane rubber may be from 0.5 to 60% by weight based on the whole resin composition.
    Type: Grant
    Filed: June 16, 1987
    Date of Patent: October 31, 1989
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Masafumi Hongo, Hideyuki Shigemitsu, Naoki Yamamoto, Akira Yanagase
  • Patent number: 4764555
    Abstract: A thermoplastic resin composition comprising:(A) from 15 to 90 parts by weight of a polycarbonate resin;(B) from 10 to 85 parts by weight of a multi-stage graft copolymer obtained by graft polymerizing from 2 to 50 parts by weight of an acrylate monomer (b) as a monomer for the first stage graft polymerization, in the presence of from 15 to 80 parts by weight of a rubbery polymer (a) of which at least 50% by weight is constituted by butadiene units and then graft polymerizing from 18 to 83 parts by weight of vinyl monomers (c) comprising from 25 to 85% by weight of an aromatic vinyl monomer (i), from 15 to 40% by weight of a vinyl cyanide monomer (ii) and from 0 to 35% by weight of another vinyl monomer (iii) copolymerizable with these monomers, as monomers for the second stage or subsequent graft polymerization, the total amount of the monomers (i) to (iii) being 100% by weight, and the total amount of components (a) to (c) being 100 parts by weight; and(C) from 0 to 60 parts by weight of a polymer obtained
    Type: Grant
    Filed: October 7, 1987
    Date of Patent: August 16, 1988
    Assignee: Mitsubishi Rayon Company Limited
    Inventors: Hideyuki Shigemitsu, Masafumi Hongo, Yutaka Toyooka
  • Patent number: 4755559
    Abstract: A thermoplastic resin composition comrpising:(A) from 5 to 50 parts by weight of a graft copolymer obtained by graft polymerizing from 20 to less than 40 parts by weight of monomers comprising from 20 to 80% by weight of an .alpha.-alkyl aromatic vinyl monomer, from 3 to 40% by weight of an aromatic vinyl monomer containing no .alpha.
    Type: Grant
    Filed: December 9, 1985
    Date of Patent: July 5, 1988
    Assignee: Mitsubishi Rayon Company Limited
    Inventors: Kazuo Kishida, Hiroshi Kawasaki, Hideyuki Shigemitsu
  • Patent number: 4665125
    Abstract: A thermoplastic resin composition having excellent heat resistance, impact resistance, moldability and platability, which comprises:(i) from 10 to 90% by weight of a thermoplastic polycarbonate;(ii) from 10 to 90% by weight of a graft copolymer obtained by firstly polymerizing a monomer mixture comprising more than 30 and not more than 50% by weight of acrylonitrile and at least 50 and less than 70% by weight of styrene, as monomers for the first stage of graft polymerization, in the presence of a rubber-like polymer, and then polymerizing a monomer mixture comprising from 15 to 40% by weight of acrylonitrile and from 60 to 85% by weight of .alpha.
    Type: Grant
    Filed: November 15, 1985
    Date of Patent: May 12, 1987
    Assignee: Mitsubishi Rayon Company Limited
    Inventors: Kazuo Kishida, Hiroshi Kawasaki, Hideyuki Shigemitsu
  • Patent number: 4563242
    Abstract: A method for plating a polyamide resin molded article which comprises carrying out, before plating treatment, etching treatments, namely the first etching treatment with an aqueous stannic chloride solution and then the second etching treatment with an aqueous acid solution, and brings about a plating effect excellent in strength of adhesion of plating film and in plating appearance.
    Type: Grant
    Filed: November 14, 1984
    Date of Patent: January 7, 1986
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventor: Hideyuki Shigemitsu
  • Patent number: 4562221
    Abstract: A polyamide resin composition excellent in plate adhesion which comprises 35% to 90% by weight of a polyamide resin, 5% to 60% by weight of an inorganic fiber and 5% to 50% by weight of wollastonite.
    Type: Grant
    Filed: June 27, 1984
    Date of Patent: December 31, 1985
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventor: Hideyuki Shigemitsu