Patent · US Expired

Impact-resistant thermoplastic molding materials with improved stress-cracking resistance

US4330641A · kind A · utility

8Cited by

4References

3Claims

0Family size

Assignee

BASF SE

Inventors

Adolf Echte · Ludwigshafen, DE
Hermann Gausepohl · Mutterstadt, DE
Helmut Jenne · Schriesheim, DE
Hans Mittnacht · Weinheim, DE

Key dates

Filing date	Nov 6, 1980
Grant date	May 18, 1982
Priority date	—
Expiry date	Nov 6, 2000

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F279/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Thermoplastic molding materials which contain a copolymer which has been made impact-resistant with a rubber. The copolymer is produced by polymerizing a mixture of a monovinyl-aromatic compound and an acrylic acid derivative or methacrylic acid derivative in the presence of a rubber. The folding materials contain a specific proportion of soft component. The diameter of the particles of the soft component, and the swelling index of the soft component, lie within a specific range, and the tensile strength of the molding material is higher than the yield strength.

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