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:
Sep. 12, 1978
Filed:
Jan. 12, 1976
Applicant:
Inventor:
Brian Parton, Manchester, GB;
Assignee:
Imperial Chemical Industries Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ;
U.S. Cl.
CPC ...
2601 / ; 2601 / ; 260147 ; 260154 ; 260155 ; 260208 ;
Abstract
Azo dyestuffs devoid of carboxylic acid and sulphonic acid groups and of the formula I: ##STR1## wherein A.sym. is a positively-charged aromatic or heterocyclic group, X.crclbar. is an anion; R is hydrogen or an optionally-substituted alkyl, aryl, aralkyl or cycloalkyl group, R.sup.1 is hydrogen, or an optionally-substituted alkyl or aralkyl group and the quinoline ring may be further substituted, and processes for the manufacture of such dyestuffs which are useful for the coloration of synthetic polymeric materials such as acrylonitrile polymers and copolymers.