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. 11, 1992
Filed:
Jun. 03, 1991
Applicant:
Inventors:
Claus-Dietrich Seiler, Rheinfelden, DE;
Hartwig Rauleder, Rheinfelden, DE;
Albert Frings, Rheinfelden, DE;
Hans-Joachim Kotzsch, Rheinfelden, DE;
Assignee:
Huels Aktiengesellschaft, Marl, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
556401 ;
Abstract
Discoloration of vinylacetoxysilanes is prevented by adding thereto 25 to 500 ppm, based on the amount of vinylacetoxysilane, of 3,5-di-tert.-butylpyrocatechol, 2,6-di-tert.-butyl-4-methylphenol, 2-mercaptobenzimidazole or a mixture thereof.