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. 21, 1981
Filed:
Mar. 12, 1979
Applicant:
Inventor:
Brian Anderson, Manchester, GB;
Assignee:
Imperial Chemical Industries Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ; C09B / ; C09B / ; C09B / ; C09B / ; C09B / ; C09B / ; C09B / ;
U.S. Cl.
CPC ...
260195 ; 260206 ; 2601 / ; 260207 ; 2602071 ; 260147 ; 2603145 ; 260371 ; 260148 ; 260372 ; 260374 ; 260150 ; 2604 / ; 2605 / ; 260151 ; 260508 ; 260510 ; 260152 ; 260149 ; 544 76 ; 260155 ; 544348 ; 564 87 ; 260156 ; 564 95 ; 564166 ; 260157 ; 564346 ; 564374 ; 260158 ; 564384 ; 564434 ; 260162 ; 260163 ; 260174 ; 260175 ; 260176 ; 260178 ; 260183 ; 260184 ; 260185 ; 260186 ; 260187 ; 260190 ; 260191 ; 260194 ; 260196 ; 260197 ; 260198 ; 260199 ; 260200 ; 260201 ; 260202 ; 260205 ;
Abstract
Dyestuffs are provided which contain one or more 1,3-dicyanobenzene radicals linked to the dyestuff at the 2-, 4- or 6-position, with halogen substituents in both of the remaining two of these positions and an electron-attracting substituent in the 5-position. These dyestuffs reactively dye cellulose at low temperatures and are less prone to 'acid-bleeding' than some known reactive dyes. More particularly, those dyestuffs have the formula: ##STR1## where D is a chromophoric group