Patent · US Expired

Flame-resistant polycarbonate blends

US6784232B1 · kind B1 · utility

3Cited by

14References

12Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Michael Zobel · Bridgwater, GB
Thomas Eckel · Dormagen, DE
Torsten Derr · Dormagen, DE
Dieter Wittmann · Leverkusen, DE

Key dates

Filing date	Feb 27, 2002
Grant date	Aug 31, 2004
Priority date	—
Expiry date	Apr 28, 2022

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L67/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A thermoplastic molding composition that contains a resinous blend with phosphonate amine is disclosed. The resinous blend contains polycarbonate and a graft polymer having a graft substrate rubber selected from among silicone, EP(D)M and acrylate rubbers. The composition exhibits exceptional flame resistance and good mechanical properties such as stress cracking resistance and ease of flow while exhibiting high heat resistance.

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