Compatible mixtures of a polycarbonate and a methacrylate copolymer

US4749749A · kind A · utility

Assignee

• Rohm GmbH Chemische Fabrik · DE

Inventors

• Manfred Munzer · Bensheim, DE
• Winfried Wunderlich · Roßdorf, DE

Key dates

• Filing date: Aug 13, 1987
• Grant date: Jun 7, 1988
• Expiry date: Aug 13, 2007

Classification

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

Abstract

Transparent, thermoplastically processible polymer mixtures comprised of: PA0 (A) Polycarbonates, particularly bisphenol A polycarbonates; and PA0 (B) Copolymers of methyl methacrylate and monosubstituted (meth)acrylamides, the latter present in the amount of 5-25 wt. %, wherein the substituent on the amide nitrogen is a cyclic organic group having an aliphatic, aromatic, or heterocyclic structure, which has no appreciable absorption capability for visible light as far as the UV wavelength of 340 nm.