Patent · US Active

Methine dyes

US10487211B2 · kind B2 · utility

0Cited by

8References

17Claims

0Family size

Assignee

LANXESS Deutschland GmbH · DE

Inventors

Hans-Ulrich Borst · Elsdorf, DE
Stephan Michaelis · Leverkusen, DE
Frank Linke · Recklinghausen, DE

Key dates

Filing date	Oct 9, 2018
Grant date	Nov 26, 2019
Priority date	—
Expiry date	Oct 9, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K5/0041
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention relates to novel methine dyes, methods for the preparation thereof and use thereof for dyeing plastics, especially polyamides, so as to obtain yellow to orange colourings with improved light fastness and improved thermal stability.

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