发明名称 |
Multistage emulsion polymer and improved pigment efficiency |
摘要 |
This invention provides a multistage emulsion polymer including, as copolymerized units: from 0.5% to 5%, by weight P-acid monomer, based on 5 the weight of the emulsion polymer; from 0% to 0.05% by weight multiethylenically unsaturated monomer, based on the weight of the emulsion polymer; and at least one second monoethylenically unsaturated monomer; the emulsion polymer having a calculated Tg of from -20 *C to 50 'C; the emulsion polymer is formed by the "pulsed" addition of 75% to 100% of 10 the P-acid monomer during a stage including from 10% to 50% of the total monomer weight, preferably added during the relatively early stages of the polymerization. A multistage polymer/TiO2 composite particle and an aqueous coating composition including the composite particle are also provided. |
申请公布号 |
AU2011213895(B2) |
申请公布日期 |
2013.11.21 |
申请号 |
AU20110213895 |
申请日期 |
2011.08.25 |
申请人 |
ROHM AND HAAS COMPANY |
发明人 |
BOHLING, JAMES CHARLES;HOOK III, JOHN WILLIAM;BROADWATER, STEVEN JAMES;SMART, REGINALD T.;BROWNELL, ARNOLD STAN |
分类号 |
C08F230/02;C08F2/22;C08F220/06;C09C1/00;C09D133/12 |
主分类号 |
C08F230/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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