Patent · US Expired

Thermoplastic polycarbonate molding materials with improved mold release

US4131575A · kind A · utility

107Cited by

5References

14Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Siegfried Adelmann
Dieter Margotte
Hugo Vernaleken · Walsrode, DE
Werner Nouvertne · Krefeld, DE

Key dates

Filing date	Feb 17, 1977
Grant date	Dec 26, 1978
Priority date	—
Expiry date	Feb 17, 1997

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K5/103
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention is concerned with thermoplastic molding materials of high molecular weight, thermoplastic, aromatic polycarbonates based on aromatic dihydroxy compounds and containing from about 0.01 to 0.1% by weight of esters of saturated aliphatic carboxylic acids with 10 to 20 C atoms and 4-hydric to 6-hydric alcohols.

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