Patent · US Expired

Preparation of reinforced, impact-modified thermoplastic molding compositions

US5104924A · kind A · utility

9Cited by

1References

6Claims

0Family size

Assignee

BASF SE

Inventors

Walter Goetz · Ludwigshafen, DE
Gerd Blinne · Worms, DE
Herbert Gutsche · Kaiserslautern, DE
Rolf Steinberger · Schifferstadt, DE

Key dates

Filing date	Jul 26, 1990
Grant date	Apr 14, 1992
Priority date	—
Expiry date	Jul 26, 2010

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L67/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a process for the preparation of reinforced, impact-modified thermoplastic molding compositions which contain, based on 100 parts by weight, PA1 A) from 30 to 93 parts by weight of one or more thermoplastics from the group comprising the polyamides, polyesters, polycarbonates and polyphenylene ethers, PA1 B) from 5 to 50 parts by weight of fibers, preferably glass fibers, and PA1 C) from 2 to 20 parts by weight of one or more impact-modifying rubbers, in which process PA1 the fibers (B) are first introduced into the melt of the thermoplastic (A), PA1 components (A) and (B) are mixed, PA1 the rubber (C) is then introduced into the resultant mixture in the melt, and PA1 the resultant molding composition is extruded and granulated, wherein the reaction is carried out in one step, expediently at a constant temperature in the range of, advantageously, from 250.degree. to 300.degree. C.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.