Invention Grant
- Patent Title: White pigment dispersions
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Application No.: US15544578Application Date: 2015-05-29
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Publication No.: US10167406B2Publication Date: 2019-01-01
- Inventor: Paul Joseph Bruinsma , Vladek Kasperchik , Thomas W. Butler
- Applicant: Hewlett-Packard Development Company, L.P.
- Applicant Address: US TX Houston
- Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee Address: US TX Houston
- Agency: Thorpe North & Western LLP
- International Application: PCT/US2015/033152 WO 20150529
- International Announcement: WO2016/175870 WO 20161103
- Main IPC: C09D17/00
- IPC: C09D17/00 ; C09C1/00 ; C09C3/00 ; C09C1/04 ; C09C1/36 ; C09D11/102 ; C09D11/322 ; C09D11/40 ; C09D11/54 ; C09D11/107

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.
Public/Granted literature
- US20170362456A1 WHITE PIGMENT DISPERSIONS Public/Granted day:2017-12-21
Information query
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