Patent · US Expired

Use of perfluoroalkanesulphonic acid amides and/or cyclimmonium salts of perfluoroalkansulphonic acids as mold release agents

US4007150A · kind A · utility

11Cited by

2References

8Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Siegfried Adelmann
Dieter Margotte
Hugo Vernaleken · Walsrode, DE
Hans Niederprum · Monheim, DE
Johann-Nikolaus Meussdoerffer
Werner Nouvertne · Krefeld, DE

Key dates

Filing date	Feb 9, 1976
Grant date	Feb 8, 1977
Priority date	—
Expiry date	Feb 9, 1996

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K5/43
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention is concerned with molding compositions which contain an aromatic polycarbonate and from about 0.001 to 1% by weight of a mold release agent selected from the group consisting of perfluoroalkanesulphonic acid amides and cyclimmonium salts of perfluoroalkanesulphonic acids.

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