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:
May. 02, 2000
Filed:
Nov. 17, 1998
Applicant:
Inventors:
Assignee:
Toyo Ink Mfg. Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C09B / ; C08K / ; C08K / ;
U.S. Cl.
CPC ...
106412 ; 106410 ; 106493 ; 106494 ; 106495 ; 106496 ; 106497 ; 106498 ; 106499 ;
Abstract
The present invention provide a pigment composition and a method for producing same at low cost, which has the same or more excellent quality compared with those produced by a salt milling process which has been commonly used. The pigment composition is produced by dry-milling a pigment in the presence of a surfactant and a water-soluble resin, said surfactant and said water-soluble resin being contained in amounts of 1 to 20% by weight and 2 to 50% by weight respectively based on an amount of the pigment. The pigment composition according to the present invention is readily dispersed into an aqueous system to obtain an aqueous pigment dispersion.