- Patent Title: Aqueous dispersion of hydrophobically modified pigment particles
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Application No.: US15216413Application Date: 2016-07-21
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Publication No.: US09957403B2Publication Date: 2018-05-01
- Inventor: Joseph Jankolovits , Alexander Katz , James C. Bohling , Clayton J. Radke , Antony K. Van Dyk , John A. Roper, III
- Applicant: DOW GLOBAL TECHNOLOGIES LLC , THE REGENTS OF THE UNIVERSITY OF CALIFORNIA , Rohm and Haas Company
- Applicant Address: US CA Oakland US MI Midland US PA Philadelphia
- Assignee: The Regents of the University of California,Dow Global Technologies LLC,Rohm and Haas Company
- Current Assignee: The Regents of the University of California,Dow Global Technologies LLC,Rohm and Haas Company
- Current Assignee Address: US CA Oakland US MI Midland US PA Philadelphia
- Agency: Riverside Law LLP
- Main IPC: C09D17/00
- IPC: C09D17/00 ; C09C1/36 ; C09C1/40 ; C09C3/12 ; C09C1/02 ; C09C1/04 ; C09C1/24 ; C09C1/30 ; C09D101/28 ; C09D133/02
Abstract:
The present invention relates to a composition comprising a) a stable aqueous dispersion of inorganic pigment particles hydrophobically modified with covalently bonded polysiloxane or silyl groups; and b) a polymeric anionic dispersant; wherein the hydrophobically modified inorganic pigment particles have an average particle size in the range of from 200 nm to 10 μm, and the solids content of the hydrophobically modified inorganic pigment particles is from 10 to 80 weight percent, based on the weight of inorganic pigment particles and water. The composition of the present invention provides a way to improve water resistance in coatings formulations.
Public/Granted literature
- US20170022384A1 Aqueous Dispersion of Hydrophobically Modified Pigment Particles Public/Granted day:2017-01-26
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