Patent · US Expired

Water-soluble triphendioxazine compounds

US4851527A · kind A · utility

2Cited by
3References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 27, 1986
Grant dateJul 25, 1989
Priority date
Expiry dateAug 27, 2006

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09B62/5033
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Water-soluble triphendioxazine compounds of the formula ##STR1## having at least one sulfato or sulfo group, in which R is a hydrogen atom, a water-solubilizing group, an alkyl group having 1 to 6 carbon atoms which is substituted by an acidic group, or an optionally substituted sulfonamide group, PA1 B is an oxygen or sulfur atom or a group of the formula --NH--or --N(R')--, where R' equals optionally substituted alkyl, cycloalkyl which is optionally substituted by certain substituents, or optionally substituted phenyl, or naphthyl which is optionally substituted by sulfo and/or a --SO.sub.2 --Y' group, PA1 B.sup.1 has one of the meanings stated for B and is identical to B or different from B, PA1 W is a bivalent aliphatic, araliphatic or aromatic radical which may be interrupted by 1 or 2 hetero groups from the series comprising groups of the formulae --O--, --NH--and --N(R')--, where R' has the above meaning, PA1 W.sup.1 has one of the meanings stated for W and is identical to W or different from W, PA1 T is a hydrogen atom or sulfo, sulfato, phosphato or carboxy, PA1 T.sup.1 has one of the meanings stated for T and is identical to T or different from T and T.sup.1 is necessaril…

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.