New Reactive Dyes

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20080028542A1
SERIAL NO

11597112

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention refers to dyestuffs of the formula (I) wherein A is carbon linked moieties especially chromophores; Y is N or C X.sup.1 is halogen or tertiary ammonium, especially pyridinium; L.sup.1 is a carbon based linking unit, optionally interrupted by O-atoms or optionally substituted N-atoms, especially ethylene or propylene R.sup.0, R.sup.1, R.sup.2 and R.sup.3 are independently hydrogen, C.sub.1 to C.sub.4 alkyl groups optionally substituted, or R.sup.2 is a group of the general formula (a*), or R.sup.3 independently is a group of the general formula (b*): (a*), (b*) wherein A.sup.1 and A.sup.2 have one of the meanings of A. Y.sup.1 and Y.sup.2 have independently one of the meanings of Y X.sup.2 and X.sup.3 have independently one of the meanings of X.sup.1, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 are independently hydrogen or C.sub.1 to C.sub.4 alkyl optionally substituted. L.sup.2 and L.sup.3 are carbon based linking units, optionally interrupted by O-atoms or optionally substituted N-atoms, especially ethylene or propylene. R.sup.1 and R.sup.2 may be linked together such as to form a cyclic structure together with --N-L.sup.1-N.sup.+. If R.sup.2 is a group of formula (a*) or (b*) then R.sup.1 and R.sup.3 may be linked together such as to form a cyclic structure with --N-L.sup.1-N.sup.+, or R.sup.6 and R.sup.3 may be linked together such as to form a cyclic structure with --N.sup.+-L.sup.3-N--, or R.sup.4 and R.sup.3 may be linked together such as to form a cyclic structure with --N.sup.+-L.sup.2-N--, but not simultaneously, processes for the preparation of said dyesstuffs and their use for dyeing and printing hydroxy- and/or carboxamido-containing fiber materials.

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Patent Owner(s)

Patent OwnerAddress
DYSTAR TEXTILFARBEN GMBH & CO DEUTSCHLAND KGGERMANY RAUNHEIM

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ebenezer, Warren J Greater Manchester, GB 10 2
Murgatroyd, Adrian J Cheshire, GB 1 0
Russ, Werner Hubert Florsheim-Wicker, DE 23 92
Taylor, John A Manchester, GB 80 1440

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