Patent · US Expired

Flame-resistant polycarbonate blends

US6831120B1 · kind B1 · utility

3Cited by

12References

24Claims

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	Dec 14, 2004
Priority date	—
Expiry date	Feb 13, 2023

Classification

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

Abstract

The present invention relates to polycarbonate blends containing phosphonate amine and inorganic nanoparticles, which have improved flame proofing and improved mechanical properties such as low-temperature impact strength, elongation at break, weld line strength and stress cracking resistance as well as an improved yellowness index.

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