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:
Mar. 21, 1989
Filed:
Nov. 20, 1987
Applicant:
Inventors:
Peter Hauser, Limburgerhof, DE;
Volker Radtke, Hassloch, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
C09B / ;
U.S. Cl.
CPC ...
540122 ;
Abstract
Finely divided, transparent, metal-free X-phthalocyanine has a specific surface area of from 75 to 120 m.sup.2 g and not less than 80% by weight of the phthalocyanine particles have a Stokes-equivalent diameter of .ltoreq.0.12 .mu.m. The phthalocyanine is very useful as a pigment for printing inks and finishes.