The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 26, 1988
Filed:
Jan. 30, 1986
Applicant:
Inventors:
Manji Sasaki, Ibaraki, JP;
Chinehito Ebina, Minoo, JP;
Haruki Okamura, Osaka, JP;
Shinichi Yachigo, Toyonaka, JP;
Tamaki Ishii, Suita, JP;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
548304 ; 524 91 ;
Abstract
There are provided acetylenecarbamide derivatives of the formula: ##STR1## wherein A represents ##STR2## in which R.sub.1 represents a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group, and R.sub.2 represents a C.sub.2 -C.sub.9 alkyl group. These derivatives are useful as stabilizers for polymeric organic substances susceptible to thermal and oxygen-induced degradation.