Patents by Inventor Hisataka Komai

Hisataka Komai 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).

  • Two-package solventless rust preventive material
    Patent number: 4324713
    Abstract: A two-package solventless rust preventive material comprises (A) a sprayable component essentially containing a liquid epoxy resin and a liquid polycarboxylic acid anhydride and (B) a sprayable component essentially containing a liquid primary or secondary amino compound and a curing accelerator, at least one of said components (A) and (B) essentially comprising a non-reactive epoxy resin diluent having a molecular weight of 300 to 4,000 and an electrically conductive powder.
    Type: Grant
    Filed: February 4, 1980
    Date of Patent: April 13, 1982
    Assignees: Nippon Zeon Co. Ltd., Nisson Motor Co. Ltd.
    Inventors: Ryuji Kita, Hisataka Komai, Makoto Wakabayashi, Haruyoshi Takagishi
  • Unsaturated polyester resin composition
    Patent number: 4299950
    Abstract: A novel unsaturated polyester resin composition comprising an unsaturated alkyd and a crosslinkable vinyl monomer, said unsaturated alkyd being a modified unsaturated alkyd obtained by reacting a polybasic acid with a polyhydric alcohol in the presence of a cyclopentadiene-type oil having a viscosity at 25.degree. C. of 50 to 50,000.
    Type: Grant
    Filed: July 22, 1980
    Date of Patent: November 10, 1981
    Assignee: Nippon Zeon Co. Ltd.
    Inventors: Riso Iwata, Atsuo Ishikawa, Hisataka Komai
  • Adhesive compositions
    Patent number: 4104327
    Abstract: An adhesive composition comprising(A) 100 parts by weight of an elastomer consisting of (I) 30 to 100% by weight of a thermoplastic elastomer expressed by the general formula (S-B).sub.n or (S-B).sub.n-1 --S in which S is substantially a polystyrene block, B is substantially a polybutadiene block, and n is an integer of from 2 to 10, and (II) 70 to 0% by weight of a thermoplastic elastomer expressed by the general formula (S--I).sub.n or (S-I).sub.n-1 --S in which S is substantially a polystyrene block, I is substantially a polyisoprene block, and n is an integer of from 2 to 10, and(B) 50 to 250 parts by weight of a hydrocarbon resin containing 40 to 95% by weight of a 1,3-pentadiene unit and 60 to 5% by weight of an .alpha.-methylstyrene unit in the polymer chain and having a softening point of 60.degree. to 140.degree. C.
    Type: Grant
    Filed: January 12, 1976
    Date of Patent: August 1, 1978
    Assignee: Nippon Zeon Co. Ltd.
    Inventors: Hisaaki Inoue, Hisataka Komai, Seiichi Okada
  • Hydrocarbon resins and compositions thereof
    Patent number: 3960823
    Abstract: Hydrocarbon resins having a softening point of 60.degree.-140.degree.C and a Gardner color of 6 or less and having excellent cohesive strength and thermal stability prepared by copolymerizing 1,3-pentadiene and cyclopentene, together with, if desired, 1,3-butadiene or isobutene and small amounts of incidental other olefins in the presence of aluminum chloride.
    Type: Grant
    Filed: April 18, 1974
    Date of Patent: June 1, 1976
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Hisataka Komai, Atsuo Ishikawa