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. 12, 1987
Filed:
Sep. 03, 1985
Applicant:
Inventors:
Keizo Kawaguchi, Aichi, JP;
Takafusa Ando, Aichi, JP;
Assignee:
Pilot Ink Co., Ltd., , JP;
Primary Examiner:
Int. Cl.
CPC ...
C09D / ; C09D / ; C09D / ;
U.S. Cl.
CPC ...
106 23 ; 106 22 ; 106 26 ; 106 27 ; 106 29 ; 106 30 ; 106300 ; 1063 / ; 1063 / ;
Abstract
A marking ink for use in marking pens is described, comprising 5 to 40% by weight of titanium dioxide surface treated with an alkaline earth metal or aluminum salt of a fatty acid having from 6 to 22 carbon atoms, 3 to 20% by weight of a resin, and a remainder of an organic solvent capable of dissolving therein the resin. The marking ink may further contain 0.5 to 30% by weight of a colorant. In this marking ink, precipitation and separation of titanium dioxide is controlled, and even if such precipitation and separation occur, titanium dioxide can be easily re-dispersed in the ink.