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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.:

US 10934429 B1

PDFFull Text
Date of Patent:
Mar. 02, 2021

Filed:

Jan. 28, 2019

Polycarbonate compositions having improved adhesion to polyurethane layers

Applicant:

Covestro Deutschland Ag, Leverkusen, DE;

Inventors:

Ralf Hufen, Duisburg, DE;

Thomas Eckel, Dormagen, DE;

Sven Hobeika, Solingen, DE;

Timo Kuhlmann, Leichlingen, DE;

Johannes Scherer, Leverkusen, DE;

Assignee:

COVESTRO DEUTSCHLAND AG, Leverkusen, DE;

Attorney:

K&L Gates LLP

Primary Examiner:

Tae H Yoon

Int. Cl.
CPC ...
B32B 3/28 (2006.01); B32B 27/08 (2006.01); B32B 27/18 (2006.01); B32B 27/40 (2006.01); C08L 69/00 (2006.01); C08L 55/02 (2006.01); C08L 25/12 (2006.01); B29C 45/16 (2006.01); B32B 5/18 (2006.01); B32B 27/06 (2006.01); B32B 27/20 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 27/36 (2006.01); C08J 7/04 (2020.01); B29C 45/00 (2006.01); B32B 5/20 (2006.01); B29K 75/00 (2006.01); B29C 67/24 (2006.01); B29K 69/00 (2006.01); B29L 9/00 (2006.01);
U.S. Cl.
CPC ...
C08L 69/00 (2013.01); B29C 45/0003 (2013.01); B29C 45/1676 (2013.01); B32B 3/28 (2013.01); B32B 5/18 (2013.01); B32B 5/20 (2013.01); B32B 27/065 (2013.01); B32B 27/08 (2013.01); B32B 27/18 (2013.01); B32B 27/20 (2013.01); B32B 27/30 (2013.01); B32B 27/302 (2013.01); B32B 27/32 (2013.01); B32B 27/36 (2013.01); B32B 27/365 (2013.01); B32B 27/40 (2013.01); C08J 7/0427 (2020.01); C08L 69/005 (2013.01); B29C 67/246 (2013.01); B29K 2069/00 (2013.01); B29K 2075/00 (2013.01); B29L 2009/00 (2013.01); B32B 2250/02 (2013.01); B32B 2250/24 (2013.01); B32B 2266/0278 (2013.01); B32B 2307/306 (2013.01); B32B 2307/308 (2013.01); B32B 2307/50 (2013.01); B32B 2307/54 (2013.01); B32B 2307/558 (2013.01); B32B 2605/00 (2013.01); B32B 2605/003 (2013.01); B32B 2605/08 (2013.01); B32B 2605/10 (2013.01); B32B 2605/18 (2013.01); C08J 2369/00 (2013.01); C08J 2475/00 (2013.01); C08J 2475/04 (2013.01);
Abstract

Compositions are provided comprising A) at least one polymer selected from the group consisting of aromatic polycarbonate and aromatic polyester carbonate, B) at least one mixture comprising at least one butadiene-based graft polymer prepared by emulsion, suspension or solution polymerization and at least one polybutadiene-free vinyl (co)polymer, and C) at least one polymer additive, where the polybutadiene content based on the sum total of the parts by weight of components A and B is 10% to 20% by weight, and where the total content of butadiene-free vinyl (co)polymer from component B based on the sum total of the parts by weight of components A and B is 12% to 23% by weight. Composite components formed from these compositions and a polyurethane layer, which are notable for improved adhesion between the two layers, and a process for producing the composite components are also provided.

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