The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2015
Filed:
Nov. 26, 2012
Huntsman International Llc, The Woodlands, TX (US);
Huntsman International LLC, The Woodlands, TX (US);
Abstract
The present invention relates to dyes of formula (1), wherein each of the residues Dand Drepresents a radical of formula (2), wherein Arrepresents the tetravalent radical of a carbocylic or heterocyclic aromatic compound, R, Rand Rare each independently of the other hydrogen, C-Calkyl, C-Calkoxy, halogen, —OH, —CN, —NO, —CF, —SOH, —NHCOR, —COOR, —CONRR, —SONRR, —NRSOR, —SOR— or —ZCHCHQ, wherein Z is —O—, —SO—, —NR—, —CONH— or —NHCO—, Q represents —OH, C-Calkyl, —SOR—, —NHR—, —OCHCHOH, —SOCHCHOH or —NHCHCHOH, Ris C-Calkyl, R, R, R, R, R, R, R, Rand Rare each independently of the others hydrogen or C-Calkyl, and Ris C-C2alkyl, with the proviso that at least one of the residues Dand Dis a radical of formula (2) wherein Ris —COOR, —SONRR, —SOR— or —ZCHCHQ, dichromatic and trichromatic mixtures containing these dyes and the use of these dyes for dyeing or printing hydroxyl group-containing or nitrogen-containing fibre materials.