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:
Mar. 19, 2019
Filed:
Jan. 18, 2016
Applicant:
Swimc Llc, Cleveland, OH (US);
Inventors:
Jason Ness, Woodbury, MN (US);
Haibo Li, High Point, NC (US);
Assignee:
SWIMC LLC, Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 7/65 (2018.01); C09D 133/10 (2006.01); C09C 1/36 (2006.01); C09D 17/00 (2006.01); C09D 5/02 (2006.01); C09D 133/14 (2006.01); C09C 3/10 (2006.01);
U.S. Cl.
CPC ...
C09C 1/3676 (2013.01); C09D 5/02 (2013.01); C09D 7/65 (2018.01); C09D 17/008 (2013.01); C09D 133/14 (2013.01); C09C 3/10 (2013.01);
Abstract
A polymer-encapsulated pigment dispersion is prepared from a mixture of (a) a carrier; (b) pigment particles; and (c) a polymeric dispersing agent having a polymer backbone, and a zwitterionic polymer side chain comprising anionic and cationic groups. The dispersing agent may provide efficient pigment wetting and dispersion using relatively low and thus economical pigment amounts, with good opacity and good hiding characteristics, especially in titanium dioxide-containing coating compositions.