Patent · US Expired

Phenylazopyrazolo dyestuffs including disulfimide substituent

US4159265A · kind A · utility

0Cited by

3References

2Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Richard Sommer
Gerhard Wolfrum · Waldershof, DE
Gerhard Buttner

Key dates

Filing date	Apr 25, 1978
Grant date	Jun 26, 1979
Priority date	—
Expiry date	Apr 25, 1998

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09B29/36
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Monoazo dyestuffs of the formula ##STR1## wherein K represents the radical of a couping component K-H of the formula ##STR2## said dyestuff being suitable for the dyeing of synthetic fibre materials especially those from polyamides.

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