Heterobifunctional reactive dyes comprising a cysteamine linking group

The presently disclosed subject matter relates to heterobifunctional reactive dyes comprising nitrogen-containing heterocycles substituted by both halogen and vinyl sulfone moieties. In particular, the presently disclosed subject matter relates to reactive dye compounds comprising two or more halo-s...

Full description

Saved in:
Bibliographic Details
Main Authors SMITH C. BRENT, ZHAO MENGNAN, SZYMCZYK MALGORZATA, FREEMAN HAROLD S
Format Patent
LanguageEnglish
Published 11.09.2008
Subjects
ADHESIVES
CHEMISTRY
DYES
LAKES
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
MORDANTS
NATURAL RESINS
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES
PAINTS
POLISHES
Online AccessGet full text

Cover

More Information
Summary:The presently disclosed subject matter relates to heterobifunctional reactive dyes comprising nitrogen-containing heterocycles substituted by both halogen and vinyl sulfone moieties. In particular, the presently disclosed subject matter relates to reactive dye compounds comprising two or more halo-substituted, nitrogen-containing heterocycles and an asymmetric bridging group, wherein at least one of the two or more halo-substituted, nitrogen-containing heterocycles further comprises a vinyl sulfone substituent. In some embodiments, the bridging group has a structure based on cysteamine or cysteine. The heterobifunctional reactive dyes have high substrate affinity and can be applied to substrates, such as cotton fibers, under low salt conditions and with reduced dye material waste.
Bibliography:Application Number: US20070894599