| 发明名称 |
Alkaline-swellable emulsion polymers |
| 摘要 |
Emulsion polymer particles comprising from 25 to 45 wt % polymerized residues of at least one C3-C6 carboxylic acid monomer and from 0.1 to 3 wt % polymerized residues of at least one crosslinker, wherein percentage of crosslinker increases continuously from particle centers to particle surfaces. |
| 申请公布号 |
US9587057(B2) |
申请公布日期 |
2017.03.07 |
| 申请号 |
US201414782119 |
申请日期 |
2014.04.04 |
| 申请人 |
ROHM AND HAAS COMPANY |
发明人 |
Zeng Fanwen;Doulut Sylvie |
| 分类号 |
C08F2/22;C08F220/06;C08F220/18;C08F220/10;C08F2/00;C08F2/26;A61K8/06;A61K8/81;A61Q5/02;A61Q5/04;A61Q5/06;A61Q5/10;A61Q17/04;A61Q19/00;A61Q19/04;A61Q19/10 |
主分类号 |
C08F2/22 |
| 代理机构 |
|
代理人 |
Crimaldi Kenneth |
| 主权项 |
1. Emulsion polymer particles comprising from 25 to 45 wt % polymerized residues of at least one of acrylic acid and methacrylic acid, 54 to 74 wt % polymerized residues of at least one C1-C8 alkyl (meth)acrylate and from 0.3 to 2 wt % polymerized residues of at least one crosslinker, wherein percentage of crosslinker increases continuously from particle centers to particle surfaces. |
| 地址 |
Philadelphia PA US |
