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:
May. 16, 2017
Filed:
Jun. 24, 2013
Applicant:
Styrolution Europe Gmbh, Frankfurt am Main, DE;
Inventors:
Konrad Knoll, Mannheim, DE;
Ulrike Dardin, Laudenbach, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 293/00 (2006.01); C08L 25/06 (2006.01); C08F 297/04 (2006.01); C08L 53/02 (2006.01);
U.S. Cl.
CPC ...
C08F 293/005 (2013.01); C08F 297/044 (2013.01); C08L 25/06 (2013.01); C08L 53/02 (2013.01);
Abstract
Process for the production of asymmetric, star-branched block copolymers which comprise, incorporated into the polymer, from 60 to 95% by weight of vinylaromatic and from 40 to 5% by weight of a conjugated diene having from 4 to 5 C atoms, based on the branched block copolymer, via sequential anionic polymerization and subsequent coupling of the resultant living block-copolymer anions by a coupling agent, and also vinylaromatic-diene block copolymers obtainable via the process and use of these for moldings and for thermoforming foils.