Patents Represented by Attorney Omiri M. Behr

Find this attorney in the Justia Lawyer Directory

  • Coloring agent for dope-dyeing viscose rayon
    Patent number: 4767807
    Abstract: A coloring agent for the dope-dyeing viscose rayon, comprising minute spherical cured particles of an amino resin produced from formaldehyde and at least one amino compound selected from the group consisting of benzoguanamine, melamine, and urea and colored with a dye, a viscose composition containing the coloring agent, a viscose rayon obtained by spinning the composition, and a method for manufacture thereof.
    Type: Grant
    Filed: August 18, 1986
    Date of Patent: August 30, 1988
    Assignee: Nippon Shokubai Kagaku Kogyo Co. Ltd.
    Inventors: Iwao Fujikawa, Mitsuo Kushino, Yasuhiro Yamamoto