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:
Dec. 27, 2022
Filed:
Dec. 12, 2018
Applicant:
Covestro Deutschland Ag, Leverkusen, DE;
Inventors:
Tim Hungerland, Cologne, DE;
Tanja Cassel, Duisburg, DE;
Assignee:
Covestro Deutschland AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 69/00 (2006.01); C08L 33/24 (2006.01); C08L 33/12 (2006.01); C08K 3/34 (2006.01); C08F 220/14 (2006.01); C08F 220/56 (2006.01); H05K 7/20 (2006.01); H05K 5/02 (2006.01);
U.S. Cl.
CPC ...
C08L 69/00 (2013.01); C08F 220/14 (2013.01); C08F 220/56 (2013.01); C08K 3/34 (2013.01); C08L 33/12 (2013.01); C08L 33/24 (2013.01); H05K 7/20481 (2013.01); C08F 2800/20 (2013.01); C08L 2203/20 (2013.01); H05K 5/02 (2013.01); H05K 7/2039 (2013.01);
Abstract
The invention relates to the use of PMMI copolymers for reducing the decrease in molecular weight of the polymer induced by addition of talc in compositions based on aromatic polycarbonate. At the same time, the mechanical, optical and rheological properties of the thermoplastic composition, in spite of the addition of the PMMI copolymer, remain good and are in some cases even improved.