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:
Mar. 21, 1989
Filed:
Aug. 14, 1987
Applicant:
Inventors:
Walter Hellermann, Dorsten, DE;
Christoph Herrmann, Marl, DE;
Hans-Bernd Fuchs, Marl, DE;
Karl-Heinz Nordsiek, Marl, DE;
Jurgen Wolpers, Haltern, DE;
Hans-Eberhard von Portatius, Dorsten, DE;
Assignee:
Huels Aktiengesellschaft, Marl, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
525258 ; 1522 / ; 525250 ; 525271 ; 525314 ; 525914 ;
Abstract
ABC block copolymers on the basis of butadiene, isoprene and optionally styrene, are provided by a polymerization process wherein the resultant block copolymer comprises: