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:
Feb. 08, 1977
Filed:
Jul. 03, 1974
Keisuke Murayama, Tokyo, JA;
Syoji Morimura, Tokyo, JA;
Takao Yoshioka, Tokyo, JA;
Toshimasa Toda, Tokyo, JA;
Eiko Mori, Tokyo, JA;
Hideo Horiuchi, Tokyo, JA;
Susumu Higashida, Tokyo, JA;
Katsuaki Matsui, Tokyo, JA;
Tomoyuki Kurumada, Tokyo, JA;
Noriyuki Ohta, Tokyo, JA;
Hisayou Osawa, Tokyo, JA;
Sankyo Company Limited, Tokyo, JA;
Abstract
Novel piperidine derivatives of formula: ##STR1## (wherein 2 or 3 of R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 represent alkyl groups having from 1 to 4 carbon atoms and the remainder of R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are hydrogen atoms, and R.sub.6 represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, a substituted alkyl group, an aliphatic acyl group, an alkoxycarbonyl group or an aralkoxycarbonyl group) are useful as stabilizers for synthetic polymers.