Patents by Inventor Osamu Kimura

Osamu Kimura 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).

  • Phosphite stabilized polyvinyl chloride containing resins
    Patent number: 3933733
    Abstract: Halogen-containing resins, particularly polyvinyl chloride, are stabilized by the incorporation of a phosphite of the formula, ##EQU1## wherein one or two of groups R.sub.1, R.sub.2 or R.sub.3 has the formula, R(OC.sub.n H.sub.2n).sub.m --, in which R is an alkyl unsubstituted or substituted with at least one hydroxyl or chlorine, an alkenyl unsubstituted or substituted with at least one hydroxyl or chlorine, or an aralkyl, n has a value of from 1 to 4, and m has a value of from 1 to 8, and the remaining group R.sub.1, R.sub.2 and/or R.sub.3 is an alkyl unsubstituted or substituted with at least one hydroxyl or chlorine, an alkenyl unsubstituted or substituted with at least one hydroxyl or chlorine, an aralkyl or an unsubstituted aryl.
    Type: Grant
    Filed: May 9, 1974
    Date of Patent: January 20, 1976
    Assignees: Kyodo Chemical Company, Limited, Sumitomo Chemical Company, Limited
    Inventors: Osamu Kimura, Katsuhiro Mukai, Minoru Osada, Shizuo Nara, Yoshitaka Tanaka, Masuo Yukitomi