Bleaching and dyeing; fluid treatment and chemical modification – Dye or potential dye composition – additive – treatment,... – Fluorescent dye – e.g. – stilbene – benzimidazole – benzoxazole,...
Patent
1997-04-21
1998-07-14
Shah, Mukund J.
Bleaching and dyeing; fluid treatment and chemical modification
Dye or potential dye composition, additive, treatment,...
Fluorescent dye, e.g., stilbene, benzimidazole, benzoxazole,...
5441932, C01D 3395, D06L 312, C07D25140
Patent
active
057797412
ABSTRACT:
The present invention provides a compound having the formula: ##STR1## in which M is hydrogen, sodium, potassium, calcium, magnesium, ammonium, mono-, di-, tri- or tetra-C.sub.1 -C.sub.4 alkylammonium, mono-, di- or tri-C.sub.1 -C.sub.4 hydroxyalkylammonium or ammonium that is di- or tri-substituted by a mixture of C.sub.1 -C.sub.4 alkyl and C.sub.1 -C.sub.4 hydroxyalkyl groups; R.sub.1 is a group having the formula: ##STR2## in which M has its previous significance and n is 1 or 2; and R.sub.2 is O--C.sub.1 -C.sub.12 alkyl or N(R.sub.3)(R.sub.4) in which R.sub.3 and R.sub.4, independently, are hydrogen, C.sub.1 -C.sub.2 alkyl or C.sub.1 -C.sub.4 hydroxyalkyl, or R.sub.3 and R.sub.4, together with the nitrogen atom, are the atoms required to form a pyrrolidine, piperidine or morpholine group.
The compounds of formula (1) are particularly useful as fluorescent whitening agents for cotton in discontinuous processes, in the course of which an acidic treatment, especially a finishing treatment using a polymer resin, occurs.
REFERENCES:
patent: 4468341 (1984-08-01), Beyer
patent: 5493022 (1996-02-01), Kaul et al.
patent: 5656760 (1997-08-01), Bacher et al.
Bacher Jean-Pierre
Eckhardt Claude
Reinehr Dieter
Ciba Specialty Chemicals Corporation
Mansfield Kevin T.
Rao Deepak R.
Shah Mukund J.
LandOfFree
Fluroescent whitening agents does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fluroescent whitening agents, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluroescent whitening agents will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1877460