Philomen Z Decroos

US Patent:

54567270, Oct 10, 1995

Filed:

May 24, 1994

Appl. No.:

8/248292

Inventors:

Mark Helle - Hope RI
Kerry Proulx - Coventry RI
Leslie McIntosh - Charlotte NC
Philomen DeCroos - Coventry RI

Assignee:

Hoechst Celanese Corporation - Somerville NJ

International Classification:

D06P 1384
C09B 6251
C09B 62513
C09B 62515

US Classification:

8549

Abstract:

The invention is a dye composition containing two or more dyes of the vinyl sulfone type which can be used in combination to dye polyamide substrates. Preferably the dye compositions of the invention contain at least three dyes of different primary colors.

US Patent:

56962410, Dec 9, 1997

Filed:

Jan 15, 1997

Appl. No.:

8/784935

Inventors:

Philomen Z. deCroos - Coventry RI
Ronald P. Pedemonte - Coventry RI
Thomas S. Phillips - North Providence RI

Assignee:

Dystar, L.P. - Charlotte NC

International Classification:

C09B 62006
C09B 62085
C09B 6251
C07D215227

US Classification:

534635

Abstract:

Novel sulfonated quinolone compounds used in the preparation of fiber reactive dyes having the formula: ##STR1## being N-alkyl substituted-4-hydroxy-6-sulfo-2-quinolone. The alkyl group bonded to the nitrogen in the quinolone has from 1 to 4 carbon atoms which may be further substituted by an hydroxy, amino, or sulfo group. The compounds of the invention may be prepared by the sulfonation of an N-alkyl substituted-4-hydroxy-2-quinolones, ##STR2## followed by selective desulfonation to yield the compounds of interest. New monoazo fiber reactive dyes having the formulas: ##STR3## and their metal complexes, may be prepared from these sulfonated compounds by the diazotization of an amine component, selected from an unsubstituted, or a substituted benzene or naphthalene compound, containing a fiber reactive group, and coupling the diazo component to the compounds of the invention. These dyes are suitable for the dyeing and printing of native and synthetic carbonamide containing fibers, and native or regenerated or synthetic hydroxy containing fibers, especially on cellulose fibrous materials, in the presence of an alkaline agent.

US Patent:

55632483, Oct 8, 1996

Filed:

May 23, 1995

Appl. No.:

8/448277

Inventors:

Walter Helmling - West Warwick RI
Philomen DeCroos - Coventry RI

Assignee:

Hoechst Celanese Corporation - Somerville NJ

International Classification:

C09B 62503

US Classification:

534618

Abstract:

The invention is a dye composition containing two or more dyes of the vinyl sulfone type which can be used in combination to dye polyamide substrates. Preferably the dye compositions of the invention contain at least three dyes of different primary colors.