Invention Grant
- Patent Title: Aqueous pigment dispersions
-
Application No.: US16765599Application Date: 2018-01-19
-
Publication No.: US11760892B2Publication Date: 2023-09-19
- Inventor: Dennis Z. Guo , Jie Zheng , Tienteh Chen , David Michael Ingle , Rodney David Stramel , June Yang , Marcos A. Barreto Caban
- Applicant: Hewlett-Packard Development Company, L.P.
- Applicant Address: US TX Spring
- Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee Address: US TX Spring
- Agency: HP Inc. Patent Department
- International Application: PCT/US2018/014317 2018.01.19
- International Announcement: WO2019/143341A 2019.07.25
- Date entered country: 2020-05-20
- Main IPC: C09D11/322
- IPC: C09D11/322 ; C09B47/04 ; C09D11/033 ; C09D11/037 ; C09D11/107 ; C09D17/00

Abstract:
The present disclosure is drawn to aqueous pigment dispersions. In one example, an aqueous pigment dispersion can include from 40 wt % to 90 wt % water, from 2 wt % to 30 wt % organic co-solvent, from 7.5 wt % to 30 wt % copper phthalocyanine pigment, from 0.5 wt % to 5 wt % styrene-acrylic dispersant, and from 0.5 wt % to 5 wt % hydrophilic polyurethane dispersant having a weight average molecular weight from 10,000 Mw to 30,000 Mw. The styrene-acrylic dispersant and the hydrophilic polyurethane dispersant can be present at a weight ratio from 1:10 to 2:1.
Public/Granted literature
- US20200277506A1 AQUEOUS PIGMENT DISPERSIONS Public/Granted day:2020-09-03
Information query
IPC分类: