Patent · US Expired

Novel navy and black disperse dye mixtures including amino-phenyl thiophene azo disperse dye and red, yellow or orange disperse dyes

US5062861A · kind A · utility

2Cited by

5References

3Claims

0Family size

Assignee

BASF SE

Inventors

Erwin Hahn · Heidelberg, DE
Guenter Hansen · Ludwigshafen, DE
Karl-Heinz Etzbach · Bischofswerda, DE
Helmut Reichelt · Neustadt, DE
Ernst Schefczik
Helmut Degen · Bischofswerda, DE
Reinhold Krallmann · Bad Dürkheim, DE
Gerhard Wagenblast · Wachenheim, DE

Key dates

Filing date	Mar 23, 1990
Grant date	Nov 5, 1991
Priority date	—
Expiry date	Mar 23, 2010

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S8/922
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Navy and black dye mixtures contain one or more thiopheneazo dyes whose diazo component comes from the 2-aminothiophene series and whose coupling component comes from the aniline series and one or more dyes F whose absorption maximum is at a wavelength of from 390 to 520 nm, the proportion of the thiopheneazo dyes being from 60 to 99% by weight, based on the total weight of the thiopheneazo dyes and the dyes F in the mixture.

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