Invention Grant
- Patent Title: Reactive monoazo dyestuffs and the processes in which they are produced
- Patent Title (中): 活性单偶氮染料及其制备方法
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Application No.: US765786Application Date: 1997-01-14
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Publication No.: US5747657APublication Date: 1998-05-05
- Inventor: Friedrich Lehr
- Applicant: Friedrich Lehr
- Applicant Address: VGX Tortola
- Assignee: Clariant Finance (BVI) Limited
- Current Assignee: Clariant Finance (BVI) Limited
- Current Assignee Address: VGX Tortola
- Priority: DEX4425222.6 19940716; DEX4435380.4 19941004
- Main IPC: C07D251/50
- IPC: C07D251/50 ; C07D239/42 ; C09B62/44 ; C09B62/51 ; D06P1/38
Abstract:
The invention relates to reactive-group-containing monoazo dyestuffs of formula (I), their salts or mixtures thereof, wherein R.sub.1 signifies hydrogen, methyl, methoxy or ethoxy, R.sub.2 signifies hydrogen, methyl, NHCONH.sub.2 or NHCOCH.sub.3, RG signifies (a), (b) or (c), X signifies hydrogen or chlorine, Z signify a group --CH=CH.sub.2, --CH.sub.2 CH.sub.2 W or mixtures thereof wherein W is a leaving group removable by alkali and --SO.sub.2 --Z may be bonded in a meta- or para-position with respect to the azo group. These compounds are useful as reactive dyestuffs in printing or dyeing hydroxy-group-containing or nitrogen-containing organic substrates.
Public/Granted literature
- US5190819A Fibers formed of blends of etheric phosphazene polymers and metal oxides and the method of their formation Public/Granted day:1993-03-02
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