Global Patent Index - EP 0980405 A1

EP 0980405 A1 20000223 - OLIGOMER AZO COLORANTS

Title (en)

OLIGOMER AZO COLORANTS

Title (de)

OLIGOMERE AZOFARBSTOFFE

Title (fr)

COLORANTS AZO OLIGOMERES

Publication

EP 0980405 A1 (DE)

Application

EP 98924128 A

Priority

  • DE 19718659 A
  • EP 9802240 W

Abstract (en)

[origin: DE19718659A1] The invention relates to oligomer azo colorants with an alternating composition based on tetrazo constituents and coupling constituents, containing at least two units of structure (I) in the molecule, wherein D stands for one tetrazo constituent of formula (II) whereby n = 1 or 2; m=1 or 2, x = a direct bond; oxygen, sulphur or a binding link, R<1> and R<2> mean independently hydrogen, C1-C4 alkyl, C1-C4 alkoxy, C1-C4 alkanoyl, cyano, carboxyl, hydroxy sulfonyl, C1-C4-alkoxy carbonyl, hydroxy, carbamoyl, mono or di- (C1-C4)-alkyl carbamoyl, sulfamoyl, mono or di-(C1-C4)-alkyl sulfamoyl, fluorine, chlorine, bromine, nitro or trifluoromethyl; R<3> and R<4> mean independently hydrogen, hydroxy sulfonyl or carboxyl; R<5> and R<6> mean independently hydrogen or hydroxy and wherein K represents a bivalent radical of a coupling constituent of formula (III), wherein the variables have the following meaning: R<7> and R<8> independently mean hydroxy, amino, morpholino or an NHAlk radical or N(Alk)2 and R<9> means hydrogen, carboxyl, hydroxy sulfonyl, C1-C4-alkoxy-carbonyl, carbamoyl, mono or di-(C1-C4), alkyl carbamoyl, sulfamoyl, mono or di(C1-C4)-alkyl sulfamoyl or a radical, Alk, OAlk, NHAlk or N(Alk)2. The invention also relates to a method for the production of said colorants, to their use in dyeing and printing natural or synthetic substrates, and to the mixtures containing said colorants.

IPC 1-7

C09B 35/64; C09B 67/22; C09B 69/10

IPC 8 full level

C09B 35/64 (2006.01); C09B 69/10 (2006.01)

CPC (source: EP)

C09B 35/64 (2013.01); C09B 69/106 (2013.01); Y10S 8/919 (2013.01)

Citation (search report)

See references of WO 9850470A1

Designated contracting state (EPC)

DE ES FR GB IT PT

DOCDB simple family (publication)

DE 19718659 A1 19981105; AR 012616 A1 20001108; EP 0980405 A1 20000223; US 6153734 A 20001128; WO 9850470 A1 19981112

DOCDB simple family (application)

DE 19718659 A 19970502; AR P980101983 A 19980429; EP 9802240 W 19980416; EP 98924128 A 19980416; US 40376199 A 19991101