Patents by Inventor Hiroshi Hondou

Hiroshi Hondou 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).

  • Plasticizer for chloroprene rubber and plasticized chloroprene rubber
    Patent number: 4908400
    Abstract: A plasticizer for chloroprene rubber represented by the following general formula (I):R.sub.1 (O--R).sub.m S(R--O).sub.n R.sub.2 (I)wherein R.sub.1 and R.sub.2 independently represent each a saturated or unsaturated aliphatic monoacyl group having 4 to 24 carbon atoms;R represents an alkylene group having two to four carbon atoms; andm and n represent each an integer of 1 to 4:is disclosed.
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: March 13, 1990
    Assignees: Du Pont-Showa Denko Co., Ltd., Adeka Argus Chemical Co., Ltd.
    Inventors: Yasushi Hirose, Kenji Iijima, Humihiro Kashima, Naoyasu Kurita, Koji Tajima, Hiroshi Hondou