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:
Nov. 23, 1976
Filed:
Jan. 28, 1974
Denis Robert Ridyard, Manchester, EN;
Imperial Chemical Industries Limited, London, EN;
Abstract
A process for the coloration of polyamide textile materials which comprises treating a polyamide textile material with an aqueous solution of an azo dye of the formula: ##SPC1## Wherein A represents the residue of a diazo component of the benzene or naphthalene series; X represent =N--, ##EQU1## Y represents chlorine or bromine; Q.sup.1 represents --O-- or --S--; Q.sup.2 represents a direct link, --O--, --CO--, --SO.sub.2 --, --SO.sub.2 NH--, --NHSO.sub.2 --, --CONH--, --NHCO--, --COO--, --OCO--, --SO.sub.2 --, --S-- or --NR.sup.4 -- in which R.sup. 4 represents hydrogen or lower alkyl; R.sup. 1 represents an alkylene, cycloalkylene or arylene radical; R.sup.2 represents an optionally substituted alkyl, cycloalkyl, aralkyl or aryl radical such that R.sup.1 and R.sup. 2 together contain not more than 13 carbon atoms; R.sup.3 represents hydrogen or lower alkyl and ring B may carry one or more substituents.