Patent · US Active

Methine dyes

US10435565B2 · kind B2 · utility

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0References

17Claims

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Assignee

LANXESS Deutschland GmbH · DE

Inventors

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

Key dates

Filing date	Nov 21, 2018
Grant date	Oct 8, 2019
Priority date	—
Expiry date	Nov 21, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2333/12
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Novel red methine dyes, methods for the preparation thereof, and use thereof for dyeing plastics, especially vinyl polymers, provide red colourings with improved colour strengths and improved colour brilliance.

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