Patents by Inventor Mitsuharu Kanai

Mitsuharu Kanai 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).

  • Vinyl benzyl 2,2,6,6-tetramethyl piperidines
    Patent number: 4767834
    Abstract: Vinyl benzyl 2,2,6,6-tetramethyl piperidines are provided, having the formula: ##STR1## wherein: R is selected from the group consisting of hydrogen; oxyl; acyl and alkyl having from one to about eighteen carbon atoms; ##STR2## in which Y is --O-- or --N(R.sub.2)--, R.sub.1 is alkyl having from one to about eighteen carbon atoms and R.sub.2 is hydrogen or alkyl having from one to about eighteen carbon atoms.
    Type: Grant
    Filed: March 19, 1987
    Date of Patent: August 30, 1988
    Assignee: Adeka Argus Chemical Co., Ltd.
    Inventors: William E. Leistner, Yutaka Nakahara, Bunji Hirai, Mitsuharu Kanai
  • 2,2,6,6-tetramethyl quaternary ammonium halides and synthetic resin and stabilizer compositions
    Patent number: 4707507
    Abstract: Water-soluble or dispersible 2,2,6,6-tetramethylquaternary ammonium halides are provided, effective as stabilizers to increase the resistance to deterioration when exposed to light of synthetic resins, and having the formula: ##STR1## wherein: R.sub.1, R.sub.3 and R.sub.4 are alkyl having from one to about twelve carbon atoms;n is 1 or 2;when n is 1, R.sub.2 is alkyl having from one to about twelve carbon atoms; andwhen n is 2, R.sub.2 is alkylene having from one to about twelve carbon atoms; andX is halogen as well as stabilizer compositions and synthetic resin compositions containing the same.
    Type: Grant
    Filed: September 4, 1986
    Date of Patent: November 17, 1987
    Assignee: Adeka Argus Chemical Co., Ltd.
    Inventors: Mitsuo Akutsu, Mitsuharu Kanai
  • Vinyl benzyl 2,2,6,6-tetramethyl piperidines
    Patent number: 4692485
    Abstract: Vinyl benzyl 2,2,6,6-tetramethyl piperidines are provided, having the formula: ##STR1## wherein: R is selected from the group consisting of hydrogen; oxyl; acyl and alkyl having from one to about eighteen carbon atoms;X is ##STR2## in which Y is --O-- or--N(R.sub.2)--, R.sub.1 is alkyl having from one to about eighteen carbon atoms and R.sub.2 is hydrogen or alkyl having from one to about eighteen carbon atoms.
    Type: Grant
    Filed: December 5, 1985
    Date of Patent: September 8, 1987
    Assignee: Adeka Argus Chemical Co., Ltd.
    Inventors: William E. Leistner, Yutaka Nakahara, Bunji Hirai, Mitsuharu Kanai