Patents by Inventor Nobuji Inoue

Nobuji Inoue 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).

  • Aqueous emulsion of thermally reactive polyurethane composition
    Patent number: 4357441
    Abstract: An aqueous emulsion of a thermally reactive polyurethane composition comprising a blocked polyisocyanate component having at least two masked isocyanate groups in the molecule uniformly dispersed in an aqueous medium, and a reactive anionic surface active agent of the formula:[R--X--CH.sub.2 CH.sub.2 O).sub.l CONH].sub.m A--NHCOSO.sub.3 Na).sub.nwherein R is a C.sub.7 -C.sub.26 alkyl, alkaryl or alkenyl group; X is --O--, --COO--, --S-- or --NR'-- wherein R' is a polyoxyalkylene group or a C.sub.1 -C.sub.22 alkyl group; l is 0 or an integer from 1 to 200; m and n each represents an integer from 1 to 4, the sum of m+n being not greater than 5; and A is the residue of a polyisocyanate compound with the removal of isocyanate groups.
    Type: Grant
    Filed: April 16, 1981
    Date of Patent: November 2, 1982
    Assignee: Dai-Ichi Kogyo Seiyaku Co., Ltd.
    Inventors: Tamotu Hamamura, Nobuji Inoue, Kazuo Sato