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:
Apr. 03, 1984
Filed:
Jan. 22, 1982
Applicant:
Inventors:
Assignee:
Sandoz Ltd., Basel, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C08K / ; C09D / ;
U.S. Cl.
CPC ...
524 99 ; 428460 ; 523351 ; 524103 ; 525162 ; 546188 ; 546242 ;
Abstract
Compounds of formula I ##STR1## where R.sub.1, R.sub.2 and R.sub.3 are defined in the text, are useful as light stabilizers for polymeric materials, particularly for thermoplastic polymers and automotive finishes. Preferred compounds are those in which R.sub.1 is hydrogen and R.sub.2 and R.sub.3 are identical (C.sub.8-17 alkyl)carbonyl groups.