Patents Assigned to Hoechst Gosei Kabushiki Kaisha
  • Patent number: 4708821
    Abstract: A process for preparing an aqueous gel which comprises mixing a water-soluble acetoacetylated high molecular compound, a cross-linking agent and water, thereby cross-linking said high molecular compound to form an aqueous gel. According to the process of the invention, an aqueous gel having excellent transparency and small serum-separation, can be prepared at room temperature by only mixing. Also, according to the present invention, there are provided the aqueous gel composition containing perfume or deodorant, and the lubricant and the method for use thereof, which utilizes the process of claim 1.
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: November 24, 1987
    Assignee: Hoechst Gosei Kabushiki Kaisha
    Inventors: Wataru Shimokawa, Katuaki Fukumori
  • Patent number: 4699804
    Abstract: A process for producing an electrically conductive composite polymer article, which comprises contacting at least one polymerizable compound selected from the group consisting of heterocyclic compounds, derivatives thereof, aniline and aniline derivatives with a polymer article containing a polymerization catalyst for the polymerizable compound, and polymerizing the polymerizable compound to prepare an electrically conductive polymer on the surface of the polymer article or on the surface and in the polymer article. Schottky-barrier diodes and patterned electrodes can also be produced by utilizing the process. According to the process, process steps can be simplified, and various devices having excellent conductivity and transparency can be produced.
    Type: Grant
    Filed: December 17, 1985
    Date of Patent: October 13, 1987
    Assignee: Hoechst Gosei Kabushiki Kaisha
    Inventors: Seizo Miyata, Takeaki Ozio
  • Patent number: 4647504
    Abstract: A dispersion of solvent-suspendible pressure sensitive adhesive particles, which comprises (A) pressure sensitive adhesive particles comprising an internally cross-linked copolymer and having a particle size of 5 to 200 microns and an organic solvent; the copolymer being prepared by copolymerizing(a) 2 to 10% by weight of at least one member selected from the group consisting of methyl acrylate, styrene and a methacrylate of alcohol having 1 to 5 carbon atoms,(b) 98 to 90% by weight of at least one member selected from the group consisting of a acrylate of alcohol having 2 to 12 carbon atoms and a methacrylate of alcohol having 6 to 12 carbon atoms;(c) 0.1 to 2.0% by weight of maleic anhydride, and(d) 0.05 to 1.
    Type: Grant
    Filed: December 17, 1985
    Date of Patent: March 3, 1987
    Assignee: Hoechst Gosei Kabushiki Kaisha
    Inventors: Kyomi Kimimura, Wataru Shimokawa, Toshibumi Igarashi