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. 03, 1991
Filed:
Apr. 24, 1990
Applicant:
Inventors:
Paul A Odorisio, Edgewater, NJ (US);
Joseph E Babiarz, Amawalk, NY (US);
Roger Meuwly, Givisiez, CH;
Werner Rutsch, Fribourg, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C08K / ;
U.S. Cl.
CPC ...
524236 ; 252 / ; 2603985 ; 524189 ; 524199 ; 524211 ; 524212 ; 564300 ; 564301 ;
Abstract
O-Alkenyl substituted hydroxylamines of formula I ##STR1## where R.sub.1 and R.sub.2 are independently hydrogen, alkyl, alkenyl, aryl or phenylalkyl, and R.sub.3 to R.sub.7 are independently hydrogen, alkyl or substituted alkyl are very effective process stabilizers for polymeric systems providing melt flow stabilization and resistance to discoloration during processing at elevated temperatures as well as effective stabilizers for lubricant compositions.