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:
Sep. 17, 1991
Filed:
Oct. 19, 1990
Takeo Fujii, Toyonaka, JP;
Tamaki Ishii, Suita, JP;
Shinichi Yachigo, Toyonaka, JP;
Tatsuo Kaneoya, Toyonaka, JP;
Yukoh Takahashi, Toyonaka, JP;
Yuzo Maegawa, Ibaraki, JP;
Haruki Okamura, Osaka, JP;
Eizo Okino, Nishinomiya, JP;
Sumitomo Chemical Company, Limited, Osaka, JP;
Abstract
A stabilized resin composition comprising a resin, a piperidine derivative represented by the formula (III) ##STR1## wherein R.sub.1 is a hydrogen atom or an alkyl group having 1 to 3 carbom atoms; R.sub.2 is a hydrogen atom or an alkyl group having from 1 to 2 carbon atoms; and R.sub.3 and R.sub.4 are each independently an alkyl group having 1 to 12 carbon atoms, a phenol-type antioxidant and a sulfur-containing antioxidant. The composition simultaneously meets heat resistance, oxidation resistance and light resistance requirements.