Patent · US Expired

Thermoplastic PVC resin compositions

US4144286A · kind A · utility

4Cited by

2References

2Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Rudolf Casper · Leverkusen, DE
Wilfried Nolte · Leverkusen, DE
Hans-Eberhard Braese · Cologne, DE

Key dates

Filing date	Mar 22, 1977
Grant date	Mar 13, 1979
Priority date	—
Expiry date	Mar 22, 1997

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L55/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Thermoplastic moulding compositions of 20 to 90% by weight of polyvinyl chloride and, accordingly, 10 to 80% by weight of a mixture of PA1 (1) 20 to 100% by weight of a thermoplastic resin which is a copolymer of 30 to 40 parts by weight of .alpha.-methyl styrene, 52 to 62 parts by weight of methyl methacrylate and 4 to 14 parts by weight of acrylonitrile, and PA1 (2) 0 to 80% by weight of a graft polymer of 40 to 60 parts by weight of a monomer mixture of styrene (40 to 60 parts by weight), acrylonitrile (0 to 10 parts by weight) and methyl methacrylate (40 to 50 parts by weight), on 40 to 60 parts by weight of polybutadiene or butadiene/styrene copolymer containing up to 30% by weight of copolymerized styrene.

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