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:
Jan. 28, 1992
Filed:
Dec. 20, 1990
Applicant:
Inventor:
Donald L Bauman, Wilmington, DE (US);
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09B / ; C09B / ;
U.S. Cl.
CPC ...
106495 ; 106493 ; 106494 ; 106497 ;
Abstract
A dispersion milling process for reducing the particle size of quinacridone pigments wherein the quinacridone is milled in the presence of hydrated aluminum sulfate and, as a crystallizing solvent, a lower alkyl ester of a C.sub.2 -C.sub.10 dibasic carboxylic acid.
Bauman, Donald. (1992). Quinacridone dispersion milling process (U.S. Patent No. 5084100). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5084100
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile