Thermoplastic high-gloss moulding compositions of the abs type

US5883189A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Herbert Eichenauer · Dormagen, DE
• Edgar Leitz · Dormagen, DE

Key dates

• Filing date: Nov 21, 1997
• Grant date: Mar 16, 1999
• Expiry date: Nov 21, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2201/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Thermoplastic moulding compositions of the ABS type, containing PA1 I) at least one graft polymer, obtainable by emulsion polymerisation of resin-forming monomers in the presence of a mixture comprising a butadiene polymer latex (A) having a particle diameter d.sub.50 of .ltoreq.320 nm, a particle diameter distribution of 30 to 100 nm in width and a gel content of .ltoreq.70 wt. % and a butadiene polymer latex (B) having a particle diameter d.sub.50 of .gtoreq.370 nm, a particle diameter distribution of 50 to 500 nm in width and a gel content of .gtoreq.270 wt. %, PA1 II) at least one graft polymer, obtainable by emulsion polymerisation of resin-forming monomers in the presence of a butadiene polymer latex (C) having a particle diameter d.sub.50 of from 110 to 150 nm, a particle diameter distribution of 20 to 50 nm in width and a gel content of from 80 to 98 wt. %, and PA1 III) at least one rubber-free copolymer composed of resin-forming monomers and the use of the moulding compositions for the production of mouldings.