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.

Date of Patent:
Jun. 03, 1980

Filed:

Nov. 28, 1977
Applicant:
Inventors:

Kurt Hofer, Munchenstein, CH;

Rudolf Moesch, Stein, CH;

Guenther Tscheulin, Frick, CH;

Anton Voykowitsch, Enzerfdorf-Sudstadt, AT;

Assignee:

Sandoz Ltd., Basel, CH;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
2524 / ; 260 / ; 2603 / ; 2604 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260404 ; 2603 / ; 2603 / ; 2603 / ; 2603 / ; 2604 / ; 2604299 ; 2604381 ; 2605 / ; 2605 / ; 2605 / ; 2605 / ; 2605 / ; 2605 / ; 2605 / ;
Abstract

Novel compounds based on a hydroxybiphenyl nucleus in which the hydroxy group is in the para position relative to the other phenyl ring and has an adjacent tertiary alkyl radical, are useful stabilizers for organic compounds against heat, light or oxygen.


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