发明名称 |
A PROCESS FOR THE PREPARATION OF AQUEOUS DISPERSIONS OF LATEX PARTICLES HAVING A HETEROGENEOUS MORPHOLOGY, THE LATEX PARTICLES OBTAINABLE WITH THE PROCESS, THE DISPERSIONS AND REDISPERSIBLE POWDERS, AS WELL AS THE USE THEREOF |
摘要 |
<p>The invention relates to a process for the preparation of aqueous dispersions of latex particles having a heterogeneous morphology by a semicontinuous emulsion polymerization, comprising the emulsion polymerizing of ethylenically unsaturated (co)monomers, accompanied by, the addition of cationic and/or anionic and/or nonionic emulsifiers and/or protective colloids as stabilizers, which are directly used as such or synthesized in situ, the semicontinuous emulsion polymerization being performed in the presence of the stabilizer or stabilizers with a monomer mixture, which a) contains at least one nonionic, ethylenically unsaturated monomer with a glass transition temperature Tg above about 30° C. in a quantity of about 10 to 70 wt. %, based on the total weight of ethylenically unsaturated (co)monomers and b) at least one hydrophilic, ethylenically unsaturated monomer in a quantity of about 5 to 30 wt. %, based on the total weight of ethylenically unsaturated (co)monomers.</p> |
申请公布号 |
EP1102793(B1) |
申请公布日期 |
2004.11.17 |
申请号 |
EP19990936581 |
申请日期 |
1999.07.21 |
申请人 |
ELOTEX AG |
发明人 |
WILLIMANN, HONGLI;KOELLIKER, ROBERT |
分类号 |
A61K47/32;A01N25/04;C04B24/26;C08F2/22;C08F2/24;C08F2/28;C08F210/02;C08F212/06;C08F212/08;C08F212/12;C08F212/14;C08F214/04;C08F218/08;C08F220/06;C08F220/42;C08F220/54;C08F222/02;C08F222/06;C08F222/10;C08F236/04;C08F257/00;C08F291/00;C08J3/02;C08J3/12;C08L9/10;C08L25/02;C08L101/00;C08L101/12;C09D5/02;C09D157/00;C09D157/04;C09J109/00;C09J157/00;C09J157/04;(IPC1-7):C08F2/22 |
主分类号 |
A61K47/32 |
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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