The Regents of the University of California;Dow Global Technologies LLC;Rohm and Haas Company
发明人:
Jankolovits Joseph,Katz Alexander,Bohling James C.,Radke Clayton J.,Van Dyk Antony K.,Roper, III John A.
申请号：
US201615216413
公开号：
US9957403(B2)
申请日:
2016.07.21
申请国别(地区):
美国
年份:
2018
代理人:
Riverside Law LLP
摘要：
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.
