Patent · US Active

Polycarbonate comprising glass fibres

US8916630B2 · kind B2 · utility

5Cited by

14References

14Claims

0Family size

Assignee

Bayer Intellectual Property GmbH · DE

Inventors

Gesa Dern · Mülheim an der Ruhr, DE
Birte Sämisch · Cologne, DE
Tanja Cassel · Oberhausen, DE

Key dates

Filing date	Sep 27, 2012
Grant date	Dec 23, 2014
Priority date	—
Expiry date	Sep 27, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L51/06
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a thermoplastic molding composition composed of polycarbonate and inorganic fillers which comprises from 0.01 to 0.5 part by weight of at least one anhydride-modified alpha-olefin terpolymer and which has a high degree of rigidity and nevertheless exhibits good strength, as well as stress-strain characteristics corresponding to those of an unreinforced polycarbonate. Surprisingly, the molding composition additionally exhibits an improvement in flame retardancy. The invention relates in particular to flame-retardant, thermoplastic molding compositions filled with glass fibers, and to the production and use thereof. The property profile is, surprisingly, independent of the degree of interaction of the filler with the polycarbonate matrix.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.