Basic phenoxazine dyestuffs
US4288227A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 1979 |
| Grant date | Sep 8, 1981 |
| Priority date | — |
| Expiry date | May 16, 1999 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P1/42
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a process for imparting coloration of good light fastness to a substrate comprising or consisting of homo- and co-polymers of acrylonitrile or of dicyanoethylene, or acid modified synthetic polyamide or polyester, which process comprises mass dyeing, dyeing or printing such substrate, employing, as dyestuff, a compound or mixture of compounds of formula I, ##STR1## wherein either R is hydrogen, or a straight or branched chain C.sub.1--8 alkyl radical, unsubstituted or mono-substituted by OH, CN, Cl, Br, CONH.sub.2, C.sub.1--4 -alkoxy, phenyl, phenoxy, --O--CO--R.sub.5 or --CO--O--R.sub.5, PA0 and R.sub.1 is a straight or branched chain C.sub.1--8 alkyl radical, unsubstituted or mono-substituted by OH, CN, Cl, Br, --CONH.sub.2, C.sub.1--4 alkoxy, phenyl, phenoxy, --O--CO--R.sub.5 or --CO--O--R.sub.5 ; or phenyl, unsubstituted or monosubstituted by halogen, C.sub.1--4 alkyl or C.sub.1--4 alkoxy, PA0 or R and R.sub.1, together with the nitrogen atom to which they are attached, form a morpholine, piperidine, pyrrolidine, piperazine or N--C.sub.1--4 alkyl-piperazine ring, PA0 R.sub.2 is hydrogen or a straight or branched chain C.sub.1--8 alkyl radical, unsubstituted or mono…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.