Patents by Inventor Kunihide Takarabe

Kunihide Takarabe 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: 5869569
    Abstract: An emulsion polymer composition having fast drying properties that provides floor polish coating materials having superior resistance to black heel marks, resistance to scuffing, resistance to abrasion, adhesion, and resistance to cleaning agents characteristics, is obtained from a film forming emulsion polymer composition comprising from greater than 60 wt % to 95 wt % of a first emulsion copolymer having a glass transition temperature within the range of from 10.degree.-100.degree. C., and from 5 wt % to less than 40 wt % of a second emulsion copolymer having a glass transition temperature that is lower than that of the first emulsion copolymer and is within the range of from 0.degree.-50.degree. C.
    Type: Grant
    Filed: March 24, 1997
    Date of Patent: February 9, 1999
    Assignee: Rohm and Haas Company
    Inventors: Zenichi Arai, Tomohiro Shinoda, Kunihide Takarabe
  • Patent number: 5705560
    Abstract: This invention is a new aqueous paint composition, and its object is to provide a quick-drying paint composition that has a low sensitivity to temperature and has a high rubber elasticity.An aqueous paint composition, comprising (1) a latex which is a film-forming latex polymer having anionic property, where the solubility of the monomers to form the polymer, excluding the monomers that show anionic property, is 0.01-1.50 g per 100 g of water, (2) a water-soluble or water dispersible polymer formed from a monomer mixture containing at least 20 weight % of amine functional group-containing monomer, and (3) an amount of volatile base sufficient to raise the pH of the composition to a sufficiently high level to bring essentially all amine functional groups to a nonionic state.
    Type: Grant
    Filed: February 16, 1996
    Date of Patent: January 6, 1998
    Assignee: Rohm and Haas Company
    Inventors: Kunihide Takarabe, Yoshio Tamura, Takayuki Sugiyama, Tomohiro Shinoda, James Keith Bardman
  • Patent number: 4914142
    Abstract: A method of producing an emulsion polymer which comprises adding a polymerizable monomer to an emulsion polymer containing a high-molecular-weight compound having a weight average molecular weight of 20,000 to 2,000,000 as a seed polymer, the amount of the unsaturated monomer being 1.5 to 9.5 times the total volume of the solids in the emulsion polymer, and thereafter, polymerizing the monomer in the presence of a film-forming aid.
    Type: Grant
    Filed: May 19, 1988
    Date of Patent: April 3, 1990
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Kunihide Takarabe, Shinichi Kuwamura