Patent · US Expired

Uniformly dyed water-swellable cellulosic fibers

US4083684A · kind A · utility

4Cited by

4References

18Claims

0Family size

Assignee

BASF SE

Inventors

Guenter Hansen · Ludwigshafen, DE
Hermann Kaack · Monsheim, DE
Wolf-Dieter Kermer
Guenter Meyer · Ludwigshafen, DE

Key dates

Filing date	Feb 18, 1977
Grant date	Apr 11, 1978
Priority date	—
Expiry date	Feb 18, 1997

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD06P3/6041
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Uniformly dyed water-swellable cellulosic fibers obtained by dyeing cellulosic fibers in the swollen state with a dye of the formula ##STR1## in which D is the radical of a diazo component; PA0 R.sup.1 and R.sup.2 are optionally substituted alkyl and one of them may also be cyclohexyl, phenyl, methoxyphenyl or ethoxyphenyl and X is hydrogen, chloro, methyl or acylamino, the molecule containing in the radicals R.sup.1, R.sup.2 and X at least one group: --CO--R.sup.3 --Y--Ar where R.sup.3 is C.sub.1 to C.sub.3 alkylene; ##STR2## Y is oxygen, sulfur or R.sup.4 is hydrogen or C.sub.1 to C.sub.4 alkyl; and PA0 Ar is phenyl or phenyl bearing chloro, bromo, methyl, methoxy, ethoxy, C.sub.1 to C.sub.4 alkoxycarbonyl or cyano as a substituent.

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