Patent · US Expired

Azo dyes with a coupling component of the quinoline series

US5306815A · kind A · utility

15Cited by
6References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 21, 1992
Grant dateApr 26, 1994
Priority date
Expiry dateSep 21, 2012

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09B29/3643
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Azo dyes useful for dyeing or printing textile fibers or fabrics and for thermal transfer have the formula ##STR1## where R.sup.1 and R.sup.2 are each substituted or unsubstituted C.sub.1 -C.sub.10 -alkyl or substituted or unsubstituted C.sub.3 -C.sub.4 -alkenyl or R.sup.1 may also be hydrogen, PA1 R.sup.3 is hydrogen or C.sub.1 -C.sub.6 -alkyl, PA1 R.sup.4 and R.sup.5 are each hydrogen, C.sub.1 -C.sub.6 -alkyl, halogen, C.sub.1 -C.sub.6 -alkoxy, amino or mono- or di(C.sub.1 -C.sub.4 -alkyl)amino, and PA1 D is a radical of the thiophene, thiazole, isothiazole, benzothiophene, thienothiophene or thienothiazole series.

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