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. 13, 1993
Filed:
Nov. 02, 1992
Applicant:
Inventors:
Assignee:
Nippon Paint Co., Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ;
U.S. Cl.
CPC ...
524449 ; 524495 ; 524496 ; 524497 ; 524555 ;
Abstract
A resin having both an acidic and a basic functional group is dissolved in an aqueous medium by neutralizing the acidic functional group with a basic compound and a pigment is dispersed in the aqueous medium by the action of the resin. To improve the dispersibility of the pigment and dispersion stability and coated film performance, a pK.sub.b value of the basic functional group of the resin is equal to or less than a pK.sub.b value of the basic compound.
Kageyama, Hiroyuki. (1993). Aqueous pigment-dispersed paste, processes for producing it and (U.S. Patent No. 5227421). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5227421
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile