Patent · US Active

Styrene copolymer compositions having an improved gloss

US9714310B2 · kind B2 · utility

0Cited by

5References

16Claims

0Family size

Assignee

INEOS STYROLUTION GROUP GMBH · DE

Inventors

Norbert Niessner · Friedelsheim, DE
Phillip Boeckmann · Bad Dürkheim, DE
Maarten Staal · Kohlhof, DE
Rolf Minkwitz · Ludwigshafen, DE

Key dates

Filing date	Aug 26, 2014
Grant date	Jul 25, 2017
Priority date	—
Expiry date	Aug 26, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2207/53
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Thermoplastic copolymer compositions which contain 50 to 82 wt.-% of a SAN copolymer AI and 15 to 55 wt.-% of a graft copolymer A2, which has an average particle size of 50 to 150 nm and is constituted of at least one rubber-like graft base with a glass transition temperature Tg<0° C., at least one alkyl acrylate, the cyclic cross-linking agent dicyclopentadienyl acrylate and a non-cyclic, additional cross-linking agent, and of 20 to 40 wt.-% of at least one graft shell composed of styrene and acrylonitrile; and auxiliary agents and/or additives, have improved gloss when exposed to weathering.

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