Patent · US Active

Organic colouring agents and coloured polymer compositions with a high stability to weathering

US9212272B2 · kind B2 · utility

0Cited by

37References

8Claims

0Family size

Assignee

Bayer MaterialScience AG · DE

Inventors

Alexander Meyer · Mülheim an der Ruhr, DE
Michael Wagner · Dortmund, DE
Jörg Reichenauer · Krefeld, DE

Key dates

Filing date	Jan 3, 2014
Grant date	Dec 15, 2015
Priority date	—
Expiry date	Jan 3, 2034

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09B67/0034
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention relates to organic coloring agents with a high color stability to weathering for thermoplastics. The invention furthermore relates to a polymer composition containing at least one thermoplastic and at least one organic coloring agent, preferably a combination of at least two organic coloring agents, of a specific structure. The invention moreover relates to the use of the coloring agents according to the invention for coloring polymer compositions, in particular for transparent formulations such as are required for the production of panes for use in buildings, motor vehicles and track vehicles or aircraft.

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