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. 27, 1976
Filed:
Oct. 11, 1973
Applicant:
Inventors:
Lajos Avar, Binningen, CH;
Kurt Hofer, Munchenstein, CH;
Assignee:
Sandoz Ltd., (Sandoz AG), Basel, CH;
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2603305 ; 1171385 ; 1171388 ; 117141 ; 1171 / ; 252404 ; 260 937 ; 260 / ;
Abstract
The present invention concerns benzothiophene acyl (2) derivatives of the formula, ##SPC1## Wherein R.sub.1, R.sub.2 and R are substituents and n is an integer 1 or 2. The compounds are useful as u.v. stabilizers for, e.g. plastic materials.