Preparation of high-impact nylon molding materials

US4574131A · kind A · utility

Assignee

• BASF SE

Inventors

• Rainer Theysohn · Bischofswerda, DE
• Hans Georg Dorst · Deidesheim, DE
• Graham E. McKee · Ludwigshafen, DE
• Rolf Steinberger · Schifferstadt, DE
• Walter Ziegler · Trier, DE
• Franz Zahradnik · Ludwigshafen, DE

Key dates

• Filing date: Aug 30, 1984
• Grant date: Mar 4, 1986
• Expiry date: Aug 30, 2004

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L77/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A process for the preparation of high-impact nylon molding materials, containing 30-88% by weight of a thermoplastic nylon, 10-50% by weight of an organosilane-coated silicate reinforcing filler, 0.1-5% by weight of a polyurethane ionomer, 2-30% by weight of a carboxyl-containing thermoplastic elastomer and, where appropriate, effective amounts of conventional additives, by mixing the silicate filler, coated with an organosilane and a polyurethane ionomer, with the thermoplastic elastomer and the nylon at above the melting point of the nylon, wherein, in a first stage, the silicate filler coated with an organosilane and a polyurethane ionomer is mixed with the nylon at above the melting point of the latter, and in a second stage the thermoplastic elastomer is finely dispersed in the filler-containing nylon at above the melting point of the latter.