Bayer Aktiengesellschaft

Manfred Grundmeier

Hugo Vernaleken

Rudolf Binsack

Eckart Reese

Rudolph Binsack

A polycarbonate film having improved flame resistance and good stress-corrosion-cracking resistance is prepared from a solution of a mixture of a low molecular weight polycarbonate containing at least about 5% by weight halogen and a higher molecular weight polycarbonate prepared from bisphenol containing at least 90 mol percent bisphenol A. The novel film can be used to advantage for self-supporting electrical insulating films.

Polycarbonate film

The present invention is concerned with polycarbonate molding resins with improved flow and strength properties which contain about 10 to 40 wt.% glass fibers and about 0.5 to 5 wt. % of polyalkylene glycol terephthalate or about 0.5 to 10 wt.% of polyalkylene glycol isophthalate.

Growing community of inventors

Krefeld, Germany

Manfred Grundmeier