Patent · US Expired

Compatible polycarbonate/methyl-meth-acrylate polymer mixtures

US4950716A · kind A · utility

4Cited by

2References

8Claims

0Family size

Assignee

Rohm GmbH Chemische Fabrik · DE

Inventors

Jens-Dieter Fischer · Darmstadt, DE
Winfried Wunderlich · Roßdorf, DE
Werner Siol · Pfungstadt, DE

Key dates

Filing date	Apr 10, 1989
Grant date	Aug 21, 1990
Priority date	—
Expiry date	Apr 10, 2009

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L69/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

This invention concerns transparent polymer mixtures that can be processed thermoplastically consisting of (A) polycarbonates, particularly Bisphenol A polycarbonates, and (B) copolymers of methyl methacrylate and 5 to 40 wt. % of N-substituted maleimides, with the substituent on the imide nitrogen being an optionally substituted cyclohexyl group, in which the copolymer (B) can also be made up of other .alpha.,.beta.-unsaturated monomer units in amounts of 0 to 40 wt. %.

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