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:
Jul. 17, 1984
Filed:
Oct. 21, 1982
Applicant:
Inventor:
Yukito Shoji, Osaka, JP;
Assignees:
Dainichiseika Color & Chemicals Mfg. Co., Ltd., Tokyo, JP;
Sakura Color Products Corp., Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ;
U.S. Cl.
CPC ...
524215 ; 524556 ; 260D / ; 106 23 ;
Abstract
A water base pigment ink composition for writing comprises a pigment, a dispersing agent, an anti-drying agent and an aqueous medium, in which said dispersing agent is a water soluble amine salt or ammonium salt of a copolymer comprises at least 50 molar % of a hydrophobic addition-polymerizable monomer and less than 50 molar % of acrylic acid or methacrylic acid, and said anti-drying agent is urea, thiourea or a derivative thereof.
Quick Actions:
Shoji, Yukito. (1984). Water base pigment ink composition for writing (U.S. Patent No. 4460727). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4460727
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile