Compositions of the ABS type for processing by extrusion and deep drawing

US5804656A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Herbert Eichenauer · Dormagen, DE
• Peter Kruger · Lübeck, DE
• Harry Staratschek · Neunburg vorm Wald, DE
• Edgar Leitz · Dormagen, DE
• Dieter Wittman · Leverkusen, DE
• Karl-Erwin Piejko · Bensberg, DE
• Jurgen Ramthun · Bensberg, DE

Key dates

• Filing date: Jan 6, 1997
• Grant date: Sep 8, 1998
• Expiry date: Jan 6, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L55/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Compositions of the ABS type containing PA1 A) one or more graft rubbers of PA2 A.1) from 10 to 60 parts by weight of one or more monomers on PA2 A.2) from 40 to 90 parts by weight of one or more rubber backbones having glass transition temperatures <0.degree.C. and PA1 B) at least one rubber-free thermoplastic resin obtained by radical polymerisation of resin-forming monomers, wherein the rubber backbone A.2) has average particle diameters (d.sub.50 values) of from 0.20 to 0.35 .mu.m and the graft rubber A) has been produced by radical emulsion graft polymerisation with the use of an initiator system comprising organic hydroperoxide and an organic reducing agent, and the use thereof for the production of mouldings by deep drawing.