Patent · US Expired

Flame-resistant polycarbonate moulding materials modified with graft polymers

US6767943B1 · kind B1 · utility

4Cited by

12References

14Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Thomas Eckel · Dormagen, DE
Michael Zobel · Bridgwater, GB
Dieter Wittmann · Leverkusen, DE
Torsten Derr · Dormagen, DE
Bernd Keller · Lompoc, US

Key dates

Filing date	Sep 25, 2001
Grant date	Jul 27, 2004
Priority date	—
Expiry date	Sep 25, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L27/18
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Flame resistant graft polymer-modified polycarbonate molding compositions are described. The polycarbonate molding compositions comprise phosphorous compounds, and a coagulated mixture of flourinated polyolefins or precompound fluorinated polyolefins. Polycarbonate molding compositions according the present invention are flame retardant, and have desirable mechanical properties, e.g., notched impact strength and elongation at break.

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