Patents Assigned to Sanyo Chemical Industries, Inc.
  • Patent number: 7122250
    Abstract: The invention is a composite resin particle useful as an additive for paints or coatings, powder coatings, cosmetic additives, slush molding resins, spacer for electronic part assembly, standard particles for electric measurement devices, toner, hot melt adhesive as well as other molding materials. Said composite resin particle comprises a resin microparticle (A) depositing on the surface of a resin particle (B) wherein the shape factor (SF-1) of said composite resin particle is 115 to 800. It is also a composite resin particle comprising a resin microparticle (A) depositing on the surface of a resin particle (B) wherein the acid vale of a resin (b) constituting the resin particle (B) is 5 to 100.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: October 17, 2006
    Assignee: Sanyo Chemical Industries, Inc.
    Inventors: Toshihiko Kinsho, Hidetoshi Noda, Kazuyuki Hirai
  • Patent number: 5672419
    Abstract: The present invention relates to a water absorbent composition comprising 100 parts by weight of water absorbing polymer particles and 0.5 to 30 parts of a resin powder having heat adhesion property at 50.degree.-200.degree. C. The present invention also relates to a water absorbing material and water absorbing products using the said water absorbing material comprising the water absorbing polymer particles, a resin having heat adhesion property at 50.degree.-200.degree. C. and fibrous material, wherein the water absorbing polymer particles are adhered to the fibrous material through the resin by heat treatment at temperature exceeding the temperature exhibits heat adhesion property of the resin. The water absorbent composition of the present invention provides excellent adhesion to a fibrous material, while it maintains the water absorbency of the original water absorbing polymer, and is consequently useful as raw material for sanitary goods such as disposable diapers and sanitary napkins etc.
    Type: Grant
    Filed: September 11, 1995
    Date of Patent: September 30, 1997
    Assignee: Sanyo Chemical Industries, Inc.
    Inventors: Shingo Mukaida, Kazuhiko Iguchi, Kenji Tanaka
  • Patent number: 5424368
    Abstract: A photosensitive resin having at least one group as shown below in Chemical Formula (1) in a molecule. ##STR1## wherein n represents an integer from 1 to 10. Since the photosensitive resin has an azido group in a molecule having an adsorption region higher than 300 nm, the resin is highly sensitive. Therefore, an emulsion coating photo mask or a soda glass photo mask, which allows light permeation within the abosorption region of the azido group and is cheap in industry, can be used as the photo mask for the photosensitive resin of the invention. The photosensitive resin is particularly useful as a photo resist.
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: June 13, 1995
    Assignee: Sanyo Chemical Industries, Inc.
    Inventors: Tadakazu Miyazaki, Masahide Mizumori, Miki Motomura
  • Patent number: 5100926
    Abstract: Disclosed herein is a process for producing polyurethane moldings having good physical properties and good receptivity of electrostatic coating, said process comprising reacting a polyoxyethylene chain-containing polyether polyol having 2-4 hydroxyl groups and a hydroxyl equivalent higher than 750 as the high-molecular weight polyol, diaminotoluene and a low-molecular weight polyol having a hydroxyl equivalent of 30-100 as the low-molecular weight, active hydrogen-containing compound, with organic polyisocyanates in specific equivalent ratios respectively. The process may advantageously applied to injection reaction molding.
    Type: Grant
    Filed: July 17, 1989
    Date of Patent: March 31, 1992
    Assignees: Toyota Jidosha Kabushiki Kaisha, Sanyo Chemical Industries, Inc.
    Inventors: Kanemitu Kondo, Takao Nomura, Junzo Ukai, Takuji Isaka, Isao Ishikawa, Kouzaburo Nagata
  • Patent number: 4167538
    Abstract: Disclosed are reinforcing fibers, particularly carbon fibers, used for the manufacture of a reinforced plastic composite material which are surface-treated with a resinous composition comprising (A) epoxy resin, (B) condensation product of an acid component comprising unsaturated dibasic acid and a hydroxyl component comprising oxyalkylated bisphenol, and (C) oxyalkylene derivative of phenol. The resinous composition has good dispersibility in water, and the reinforcing fibers surface-treated therewith exhibit improved adhesion to various resin matrixes.
    Type: Grant
    Filed: October 18, 1977
    Date of Patent: September 11, 1979
    Assignees: Toray Industries, Inc., Sanyo Chemical Industries, Inc.
    Inventors: Itsuki Taniguchi, Ryuichi Itoh, Toshihiro Iwatsuki, Shigehiro Ohuchi