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.

Date of Patent:
Jan. 31, 1989

Filed:

Jun. 22, 1987
Applicant:
Inventors:

Robert Langley, Glasgow, GB;

John D Stewart, Transvaal, ZA;

Arthur S Walls, Ayrshire, GB;

Assignee:

Ciba-Geigy Corporation, Ardsley, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ; C09D / ;
U.S. Cl.
CPC ...
524 88 ; 106410 ; 106412 ;
Abstract

Pigmentary copper phthalocyanine is prepared by converting crude copper phthalocyanine by methods known per se in the presence of trichlorophenoxy copper phthalocyanine. The resulting pigment is heat resistant and solvent resistant.


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