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. 22, 1980
Filed:
Nov. 28, 1977
Alexander M Irvine, Dean Park, GB;
John B Blackburn, Beith, GB;
Ciba-Geigy Corporation, Ardsley, NY (US);
Abstract
Copper phthalocyanine derivatives of the formula ##STR1## or mixtures thereof wherein CuPc is optionally substituted copper phthalocyanine, n is a value from 1 to 4, X is hydrogen, 1-4 C alkyl, 1-4 C alkoxy or halogen, and R is linear or branched alkyl of 1 to 22 C-atoms which may be substituted with one or more alkoxy, dialkylamino or alkylthio, the alkyls having 1 to 22 C-atoms, or arylalkyl, the alkyl having 1 to 4 C-atoms and the aryl being optionally substituted by one or more non-water solubilizing groups, which incorporated into a phthalocyanine pigment, provide excellent flocculation resistance in paint and printing ink media.