Polycarbonate-ABS moulding materials

US6417256B1 · kind B1 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Thomas Eckel · Dormagen, DE
• Dieter Wittmann · Leverkusen, DE
• Ralph Ostarek · Goldkronach, DE
• Richard Weider · Leverkusen, DE
• Gisbert Michels · Leverkusen, DE

Key dates

• Filing date: Mar 22, 2000
• Grant date: Jul 9, 2002
• Expiry date: Mar 22, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L69/005
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A thermoplastic molding composition containing 1 to 99 parts by weight of aromatic polycarbonate or polyester carbonate and 1 to 99 parts by weight of at least one graft polymer prepared by solution polymerization is disclosed. The graft polymer is characterized in having rubber content of 20 to 50 wt. % and in that the average particle size of its rubber phase is 80 to 600 nm. The composition, which optionally contains additives, flameproofing agents and reinforcing agents, is characterized by its improved mechanical properties.