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:
Jun. 11, 2013
Filed:
Dec. 17, 2009
Achim Feldermann, Düsseldorf, DE;
Eckhard Wenz, Köln, DE;
Andreas Seidel, Dormagen, DE;
Evgueni Avtomonov, Leverkusen, DE;
Achim Feldermann, Düsseldorf, DE;
Eckhard Wenz, Köln, DE;
Andreas Seidel, Dormagen, DE;
Evgueni Avtomonov, Leverkusen, DE;
Bayer Intellectual Proeprty GmbH, Monheim, DE;
Abstract
Impact-modified polycarbonate compositions are disclosed that comprise a first graft polymer based on silicone-acrylate composite rubber as graft base, wherein the amount of silicone rubber is from 65 to 95 wt. % (based on the graft base), and a second graft polymer containing free copolymer, that is to say copolymer that is not chemically bonded to the rubber, and having a weight-average molecular weight of from 60,000 to 150,000 g/mol. The use of the polycarbonate compositions in the production of molded articles, and to the molded articles themselves are also disclosed. The compositions and molding compositions have an optimum combination of good elongation at tear, good hydrolytic stability and low melt viscosity.