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. 01, 2019
Filed:
May. 29, 2015
Applicant:
Hewlett-packard Development Company, L.p., Fort Collins, CO (US);
Inventors:
Paul Joseph Bruinsma, San Diego, CA (US);
Vladek Kasperchik, Corvallis, OR (US);
Thomas W. Butler, Corvallis, OR (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 17/00 (2006.01); C09C 1/00 (2006.01); C09C 3/00 (2006.01); C09C 1/04 (2006.01); C09C 1/36 (2006.01); C09D 11/102 (2014.01); C09D 11/322 (2014.01); C09D 11/40 (2014.01); C09D 11/54 (2014.01); C09D 11/107 (2014.01);
U.S. Cl.
CPC ...
C09D 17/001 (2013.01); C09C 1/00 (2013.01); C09C 1/043 (2013.01); C09C 1/3607 (2013.01); C09C 1/3669 (2013.01); C09C 1/3676 (2013.01); C09C 3/00 (2013.01); C09D 11/102 (2013.01); C09D 11/107 (2013.01); C09D 11/322 (2013.01); C09D 11/40 (2013.01); C09D 11/54 (2013.01); C09D 17/008 (2013.01); C01P 2004/62 (2013.01); C01P 2006/22 (2013.01);
Abstract
The present disclosure provides white pigment dispersions, which can include an aqueous liquid vehicle, and from 5 wt % to 70 wt % of a white metal oxide pigment dispersed by two co-dispersants. The metal oxide pigment can have an average particulate size from 100 nm to 1 μm, and the co-dispersants can include both i) a short-chain anionic dispersant having a weight average molecular weight ranging from 1,000 Mw to 30,000 Mw, and ii) a non-ionic or predominantly non-ionic dispersant.