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:
Aug. 22, 1989
Filed:
Nov. 18, 1987
Applicant:
Inventors:
Friedrich-Wilhelm Kupper, Marl, DE;
Heinz-Werner Voges, Dorsten, DE;
Werner Patzold, Gladbeck, DE;
Richard Schaaf, Haltern, DE;
Assignee:
Huels Aktiengesellschaft, Marl, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560 75 ; 8DIG / ;
Abstract
Esters of 3-tert-butyl- and 3-tert-butyl-5-alkyl-4-hydroxyphenyl(alkane) carboxylic acids of Formula I ##STR1## with oxethylates of polyhydroxyaromatics of 2-6 hydroxy groups of general Formulae II and III, containing 1-6 oxethylate units, ##STR2## with X=(CH.sub.2).sub.q OH