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:
Jul. 21, 1992
Filed:
Nov. 20, 1989
Applicant:
Inventors:
Birgit Potthoff-Karl, Weinheim, DE;
Karin Sperling-Vietmeier, Neustadt, DE;
Axel Sanner, Frankenthal, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08L / ; A61K / ;
U.S. Cl.
CPC ...
526264 ; 524548 ; 424 71 ;
Abstract
Copolymers based on tert-butyl acrylate and/or tert-butyl methacrylate, having a K value of from 10 to 50 and obtainable by free radical polymerization of