| 发明名称 |
Sulfonic acid monomer based compositions |
| 摘要 |
The present invention relates to a composition which comprises a stable aqueous dispersion of discrete polymer particles and a water-soluble dispersant adsorbed onto the surfaces of pigment particles, wherein the polymer particles comprise structural units of a sulfonic acid monomer or a salt thereof. The present invention addresses a need in the art by providing a way to improve the hiding efficiency of compositions containing pigment such as TiO2 and associative rheology modifiers. |
| 申请公布号 |
US8907004(B2) |
申请公布日期 |
2014.12.09 |
| 申请号 |
US201313951588 |
申请日期 |
2013.07.26 |
| 申请人 |
Dow Global Technologies LLC;Rohm and Haas Company |
发明人 |
Henderson Kevin J.;Kalantar Thomas H.;Rivera Lidaris San Miguel;Singh Anurima;Van Dyk Antony K. |
| 分类号 |
C08F220/06;C08K5/09;C09D141/00;C08F220/38;C09D133/14;C08L101/00 |
主分类号 |
C08F220/06 |
| 代理机构 |
|
代理人 |
Willis Reid S. |
| 主权项 |
1. A composition comprising a stable aqueous dispersion of discrete polymer particles and a water-soluble dispersant adsorbed onto the surfaces of pigment particles; wherein the water-soluble dispersant comprises structural units of a sulfonic acid monomer or a salt thereof and less than 30 weight percent structural units of an acrylic acid or methacrylic acid monomer, based on the weight of the dispersant; and wherein the water-soluble dispersant contains a substantial absence of structural units of a phosphorous acid monomer. |
| 地址 |
Midland MI US |
