Use of homopolycarbonates of 3,3'-dihydroxydiphenyl ether for modifying films of thermoplastics

US4954569A · kind A · utility

Inventors

• Gunther Weymans · Leverkusen, DE
• Klaus Berg · Krefeld, DE
• Ulrich Grigo · New Martinsville, US
• Karsten-Josef Idel · Krefeld, DE
• Ludwig Bottenbruch · Krefeld, DE

Key dates

• Filing date: Jun 26, 1989
• Grant date: Sep 4, 1990
• Expiry date: Jun 26, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L69/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to the use of thermoplastic homopolycarbonates of 3,3'-dihydroxydiphenyl ether in quantities of 3% by weight to 30% by weight for modifying filsm of other thermoplastics than the thermoplastic homopolycarbonates of 3,3'-dihydroxydiphenyl ether, to a process for modifying films of these other thermoplastics, to the films obtainable by this process and to mixtures containing the homopolycarbonates mentioned and the other thermoplastics.