Patent · US Expired

Uniformly dyed water-swellable cellulosic fibers

US4083686A · kind A · utility

3Cited by

4References

13Claims

0Family size

Assignee

BASF SE

Inventors

Peter Dimroth · Ludwigshafen, DE
Walter Kurtz · Bad Dürkheim, DE
Volker Radtke · Haßloch, DE
Werner Juenemann · Bad Dürkheim, DE

Key dates

Filing date	Feb 28, 1977
Grant date	Apr 11, 1978
Priority date	—
Expiry date	Feb 28, 1997

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S8/922
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## where D is a radical of a diazo component of the aniline, aminoazobenzene, aminophthalimide, aminonaphthalimide, anthraquinone or benzanthrone series, R is alkyl of 1 to 4 carbon atoms or phenyl which is unsubstituted or substituted by chlorine, bromine, methyl, methoxy or ethoxy and R.sup.1 is phenyl which is unsubstituted or substituted by chlorine, bromine, methyl, ethyl, methoxy, ethoxy, benzyloxy, phenoxy, chlorophenoxy, unsubstituted or N-substituted carbamoyl or sulfamoyl, unsubstituted or N-substituted phthalimidyl, alkoxycarbonyl of 1 to 8 carbon atoms, cyano or phenylsulfonyl.

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