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. 14, 2020
Filed:
May. 17, 2019
Applicant:
Dic Corporation, Tokyo, JP;
Inventor:
Yoshinosuke Shimamura, Kita-adachi-gun, JP;
Assignee:
DIC CORPORATION, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08L 23/06 (2006.01); C09D 11/38 (2014.01); C09D 17/00 (2006.01); C09D 11/326 (2014.01); C09D 11/322 (2014.01); C09D 11/328 (2014.01);
U.S. Cl.
CPC ...
C09D 11/38 (2013.01); C09D 11/322 (2013.01); C09D 11/326 (2013.01); C09D 11/328 (2013.01); C09D 17/00 (2013.01); C09D 17/001 (2013.01); C09D 17/002 (2013.01); C09D 17/003 (2013.01); C09D 17/005 (2013.01);
Abstract
The method prepares an aqueous pigment dispersion. The method includes the following steps: providing a silica liquid including a hydrophilic fumed silica, potassium hydroxide and ion exchanged water; providing a styrene-acrylic acid copolymer obtained by copolymerizing monomers including a styrene monomer at an amount of 50 to 90 mass %; providing an aqueous medium; mixing a pigment with the styrene-acrylic acid copolymer and the aqueous medium to prepare a first mixture; and subsequently mixing the first mixture with the silica liquid to prepare the aqueous pigment dispersion.