Patent · US Active

Copolycarbonates having improved surface hardness

US8329852B2 · kind B2 · utility

0Cited by

3References

15Claims

0Family size

Assignee

Bayer MaterialScience AG · DE

Inventors

Helmut-Werner Heuer · Krefeld, DE
Rolf Wehrmann · Krefeld, DE
Alexander Karbach · Krefeld, DE

Key dates

Filing date	Nov 14, 2009
Grant date	Dec 11, 2012
Priority date	—
Expiry date	Nov 14, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G64/06
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to copolycarbonates having improved surface hardness, processes for the preparation thereof and the use thereof for the production of blends, shaped articles and extrudates.

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