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. 18, 2004
Filed:
Jun. 21, 2002
Applicant:
Inventors:
Andreas Seidel, Dormagen, DE;
Thomas Eckel, Dormagen, DE;
Michael Zobel, Köln, DE;
Torsten Derr, Dormagen, DE;
Dieter Wittmann, Leverkusen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/34 ; C08K 5/523 ; C08K 5/5313 ; C08K 5/5399 ;
U.S. Cl.
CPC ...
C08K 3/34 ; C08K 5/523 ; C08K 5/5313 ; C08K 5/5399 ;
Abstract
A thermoplastic molding composition comprising polycarbonate, an impact modifier, a phosphorus-containing flameproofing agent, and high purity talc is disclosed. The composition offers flame resistance for molded parts having small wall thickness, improved rigidity and resistance to stress cracking. The talc has MgO content of 30.5 to 32 wt. %, SiO content of 60 to 62.5 wt. % and Al O content lower than 0.7 wt. % and d value less than or equal to 2.5 &mgr;m.