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:
Apr. 27, 1976
Filed:
Mar. 21, 1974
Applicant:
Inventors:
Colin William Greenhalgh, Manchester, EN;
David Francis Newton, Manchester, EN;
Dennis Eckersley, Manchester, EN;
Ian Cheetham, Manchester, EN;
Duncan Adrian Phillips, Manchester, EN;
Kenneth Dunkerley, Manchester, EN;
Gerald Williams, Manchester, EN;
Vibhas Chokshi, Manchester, EN;
Assignee:
Imperial Chemical Industries Limited, London, EN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D06P / ; D06P / ; D06P / ;
U.S. Cl.
CPC ...
8 39 / ; 8 1 / ; 8 1 / ; 8 41 / ; 8 41 / ; 8163 ; 8178 / ;
Abstract
Dyeing nylon by applying sulphonated or unsulphonated dyestuffs containing cyclic anhydride groups, anhydride forming dicarboxylic acid groups or half-esters or half-amides thereof, as free acids or as salts with ammonia or volatile amines, and heating the fibre until dyestuff fixation takes place.