Patents Assigned to Mitsubishi Kasei Vinyl Company
  • Patent number: 5316825
    Abstract: An anti-fogging film consisting essentially of a thin film of a transparent synthetic resin, which has micro concavities of at most 20 .mu.m in width and at most 10 .mu.m in depth formed over the entire surface of at least one side of the thin film, the total area of the micro concavities being from 20 to 80% of the area of the film surface on which the concavities are formed.
    Type: Grant
    Filed: June 18, 1992
    Date of Patent: May 31, 1994
    Assignee: Mitsubishi Kasei Vinyl Company
    Inventors: Takeyuki Nakai, Kazuyoshi Murakami, Yoshiko Ito
  • Patent number: 5314941
    Abstract: A thermoplastic elastomer composition comprising, as resin components, 100 parts by weight of a crystalline chlorinated polyethylene with a chlorination degree of from 20 to 45% and a heat of crystal fusion of from 5 to 35 cal/g as measured by a DSC method and from 40 to 400 parts by weight of a rubber material having a solubility in tetrahydrofuran at 25.degree. C. of not more than 50% by weight.
    Type: Grant
    Filed: May 15, 1992
    Date of Patent: May 24, 1994
    Assignee: Mitsubishi Kasei Vinyl Company
    Inventors: Masahiro Yamanaka, Kazuya Hori, Naoki Ichikawa, Mizuo Washimi
  • Patent number: 5270381
    Abstract: A thermoplastic elastomer composition comprising, as the main blend components, 100 parts by weight of a crystalline chlorinated polyethylene with a chlorination degree of from 20 to 45% and a heat of crystal fusion of from 5 to 35 cal/g as measured by a DSC method and from 10 to 75 parts by weight of a plasticizer.
    Type: Grant
    Filed: May 8, 1992
    Date of Patent: December 14, 1993
    Assignee: Mitsubishi Kasei Vinyl Company
    Inventors: Masahiro Yamanaka, Kazuya Hori, Hiroyuki Mori, Naoki Ichikawa, Mizuo Washimi
  • Patent number: 5252623
    Abstract: An expandable vinyl chloride resin composition comprising, as main components, a vinyl chloride polymer composed mainly of vinyl chloride obtained by emulsion polymerization or fine suspension polymerization of a vinyl chloride monomer and a vinyl comonomer having a hydroxyl group or a carboxyl group, a plasticizer, a chemical blowing agent and a crosslinking agent, wherein said crosslinking agent is:(1) a combination of an alkylphenol-blocked polyisocyanate and an .epsilon.-caprolactam-blocked polyisocyanate, or(2) a polyisocyanate randomly blocked by an alkyl phenol and .epsilon.-caprolactam.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: October 12, 1993
    Assignees: Mitsubishi Kasei Vinyl Company, Mitsubishi Kasei Corporation
    Inventors: Satoru Sugino, Hisaharu Hotta
  • Patent number: 5248723
    Abstract: A vinyl chloride polymer composition comprising from 50 to 90 parts by weight of a vinyl chloride polymer having an average particle size of from 5 to 80 .mu.m and an average degree of polymerization of at least 2500 and from 50 to 10 parts by weight of a vinyl chloride polymer capable of forming a plastisol.
    Type: Grant
    Filed: March 12, 1992
    Date of Patent: September 28, 1993
    Assignee: Mitsubishi Kasei Vinyl Company
    Inventors: Yoji Nakayama, Yasuo Murase
  • Patent number: 5182362
    Abstract: A process for producing a granular vinyl chloride resin from a vinyl chloride resin latex prepared by emulsion polymerization or fine suspension polymerization, which comprises:(A) a step of flocculating the vinyl chloride resin latex,(B) a step of dehydrating the flocculated vinyl chloride resin to a water content of at most 50% by weight by means of a filter press dehydrator, a belt press dehydrator or a tube press dehydrator, and(C) a step of drying the dehydrated vinyl chloride resin at a temperature of lower than 80.degree. C.
    Type: Grant
    Filed: July 1, 1991
    Date of Patent: January 26, 1993
    Assignee: Mitsubishi Kasei Vinyl Company
    Inventors: Masaki Asahi, Yukio Noro
  • Patent number: 5147899
    Abstract: A process for producing a foamed polyvinyl alcohol film, which comprises mechanically foaming an aqueous solution containing a polyvinyl alcohol and a plasticizer, coating the foamed solution on the substrate, followed by heat-drying.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: September 15, 1992
    Assignee: Mitsubishi Kasei Vinyl Company
    Inventors: Akihide Sato, Tokio Niikuni
  • Patent number: 5093440
    Abstract: A method for producing a vinyl chloride resin, which comprises suspension-polymerizing vinyl chloride, or a mixture of vinyl chloride with a co-monomer copolymerizable therewith, in an aqueous medium in the presence of an oil-soluble polymerization catalyst, a dispersant and an emulsifier by means of a homogenizer under an emulsifying pressure within a range of from 5 to 50 kg/cm.sup.2 in such a state that the organic phase is dispersed in the aqueous phase.
    Type: Grant
    Filed: March 1, 1990
    Date of Patent: March 3, 1992
    Assignee: Mitsubishi Kasei Vinyl Company
    Inventor: Katsunori Takeuchi
  • Patent number: 5087730
    Abstract: A method for producing an ester, which comprises reacting an organic acid or its anhydride with an alcohol in the presence of a catalyst of an organometallic compound, wherein an esterification reaction product containing the catalyst, is treated with a polyhydric alcohol.
    Type: Grant
    Filed: June 15, 1990
    Date of Patent: February 11, 1992
    Assignee: Mitsubishi Kasei Vinyl Company
    Inventor: Yasunori Matsushita
  • Patent number: 5087664
    Abstract: A plastisol composition comprising a vinyl chloride polymer, a plasticizer and an adhesion-imparting agent, characterized in that the adhesion-imparting agent is a diisocyanate polymer blocked with an oxybenzoic acid ester or with an alkylphenol and having an average molecular weight within a range of from 1,000 to 10,000.
    Type: Grant
    Filed: February 27, 1991
    Date of Patent: February 11, 1992
    Assignees: Mitsubishi Kasei Vinyl Company, Mitsubishi Kasei Corporation
    Inventors: Satoru Sugino, Yoshimichi Kobayashi
  • Patent number: 5073316
    Abstract: A process for producing a porous film comprising polyolefin resin, a filler and an ester of dipentaerythritol having a ratio 3 to 70% residual OH groups.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: December 17, 1991
    Assignees: Mitsubishi Kasei Vinyl Company, Mitsubishi Kasei Corporation
    Inventors: Kunio Bizen, Minoru Kashino, Tasuku Suzuki, Ryuichi Hasegawa, Koji Hayashi
  • Patent number: 5030673
    Abstract: A plastisol composition comprising a vinyl chloride polymer, a plasticizer and an adhesion-imparting agent, characterized in that the adhesion-imparting agent is a diisocyanate polymer blocked with an oxybenzoic acid ester or with an alkylphenol and having an average molecular weight within a range of from 1,000 to 10,000.
    Type: Grant
    Filed: November 7, 1988
    Date of Patent: July 9, 1991
    Assignees: Mitsubishi Kasei Vinyl Company, Mitsubishi Kasei Corporation
    Inventors: Satoru Sugino, Yoshimichi Kobayashi
  • Patent number: 4957818
    Abstract: A molded synthetic resin product comprising a synthetic resin substrate and a coating layer formed by heat treatment on the surface of the substrate, said coating layer comprising, as main components, (A) a silane compound having a hydrolyzable group directly bonded to a silicon atom, and (B) an acrylic resin obtained by polymerizing a monomer selected from the group consisting of alkyl (meth)acrylates, or a mixture of such a monomer with an alkenyl benzene monomer, and a copolymerizable .alpha.,.beta.-ethylenically unsaturated monomer.
    Type: Grant
    Filed: August 8, 1988
    Date of Patent: September 18, 1990
    Assignee: Mitsubishi Kasei Vinyl Company
    Inventors: Atsushi Obayashi, Yuji Takeda, Kazuya Kinoshita
  • Patent number: 4948670
    Abstract: A vinyl chloride resin composition for coating electric wires, which comprises 100 parts by weight of a vinyl chloride resin and from 10 to 200 parts by weight of an alkyl biphenyltetracarboxylate.
    Type: Grant
    Filed: March 31, 1989
    Date of Patent: August 14, 1990
    Assignee: Mitsubishi Kasei Vinyl Company
    Inventors: Seiichi Morimoto, Kazuyuki Shiji, Hisahiro Kusu
  • Patent number: 4839218
    Abstract: A composite polyester sheet which comprises a polyester film, a layer of a vinyl chloride plastisol composition (A) containing an adhesion-imparting agent, formed on the film and a layer of a vinyl chloride plastisol composition (B) containing no adhesion-imparting agent, formed on the layer of the composition (A).
    Type: Grant
    Filed: April 14, 1988
    Date of Patent: June 13, 1989
    Assignee: Mitsubishi Kasei Vinyl Company
    Inventor: Satoru Sugino