Patent · US Expired

Polycarbonate or polyester carbonate containing optical brighteners

US7265170B2 · kind B2 · utility

0Cited by

11References

5Claims

0Family size

Assignee

Bayer MaterialScience AG · DE

Inventors

Rudiger Gorny · Dorpsstraat, US
Siegfried Anders · Recklinghausen, DE
Wolfgang Nising · Sankt Augustin, DE
Marco Roelofs · Krefeld, DE

Key dates

Filing date	Sep 24, 2003
Grant date	Sep 4, 2007
Priority date	—
Expiry date	Jun 3, 2024

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K5/3475
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A thermoplastic molding composition characterized by its optical brightness and good weathering resistance is disclosed. The composition contains a poly(ester) carbonate an optical brightener conforming to

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