Patent · US Expired

.alpha.-methine substituted thiophene monoazo dye

US4668775A · kind A · utility

9Cited by

5References

9Claims

0Family size

Assignee

BASF SE

Inventors

Udo Bergmann · Darmstadt, DE
Erwin Hahn · Heidelberg, DE
Guenter Hansen · Ludwigshafen, DE

Key dates

Filing date	Jul 24, 1985
Grant date	May 26, 1987
Priority date	—
Expiry date	Jul 24, 2005

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S534/02
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A compound of the formula: ##STR1## wherein K is a radical of a coupling component, R is a radical of a methylene-active compound, X is hydrogen or unsubstituted or substituted alkyl, aryl, or hetaryl and Y is cyano, nitro, alkanoyl, aroyl, alkylsulfonyl, arylsulfonyl, carboxyl, a carboxylic ester group or unsubstituted or substituted carbamyl. The present compound is useful for the dyeing of polyesters, nylons, cellulose esters and blends of polyesters and cellulose fibers.

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