Thermoplastic synthetic material and a process for its production

US4317890A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Wilhelm Goyert · Leverkusen, DE
• Albert Awater · Odenthal, DE
• Wolfgang Grimm · Bremen, DE
• Karl-Heinz Ott
• Wolfgang Oberkirch · Leverkusen, DE
• Hans Wagner · Dormagen, DE

Key dates

• Filing date: Dec 13, 1979
• Grant date: Mar 2, 1982
• Expiry date: Dec 13, 1999

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L75/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The instant invention is directed to a thermoplastic synthetic material, comprising: PA1 (A) 75 to 97% by weight of a thermoplastic polyurethane and PA1 (B) 25 to 3% by weight of a polymer of olefinically unsaturated monomers, wherein component (B) is a graft product of PA2 (a) 5 to 35% by weight, based on the graft product, of one or more graft monomers on PA2 (b) 65 to 95% by weight, based on the graft product, of an elastomer component serving as graft base which has a second order transition temperature of below -30.degree. C., the entire component (B) containing less than 50% by weight of the monomers styrene, .alpha.-methyl styrene and acrylonitrile. The instant invention is also directed to a process for the production of the thermoplastic synthetic materials.