Patent · US Expired

Thermoplastic compositions of polyurethanes and partly crosslinked alkyl acrylate copolymers

US5237001A · kind A · utility

8Cited by

11References

5Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Karl-Erwin Piejko · Bensberg, DE
Ernst Orthmann · Dormagen, DE
Christian Lindner · Bensheim, DE
Hans-Eberhard Braese · Cologne, DE

Key dates

Filing date	Jun 11, 1991
Grant date	Aug 17, 1993
Priority date	—
Expiry date	Jun 11, 2011

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L75/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention is directed to a thermoplastic composition which is a blend of A) a thermoplastic polyurethane and B) an at least partly crosslinked alkyl acrylate copolymer of a C.sub.1-6 alkyl acrylate and a monomer selected from the group consisting of acrylonitrile, styrene, vinyl acetate, C.sub.1-6 alkyl methacrylates and mixtures thereof. The preferred compositions also contain copolymer selected from the group consisting of PA0 C1) a thermoplastic graft product of a rubber component having a glass transition temperature below 0.degree. C., which serves as the graft base, and at least one graft monomer selected from the group consisting of styrene, .alpha.-methyl styrene, acrylonitrile an C.sub.1-6 alkyl methacrylate, PA0 C2) a rubber-free resin copolymer of styrene or .alpha.-methyl styrene with acrylonitrile, PA0 C3) mixtures thereof.

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