发明名称 |
WATER DISPERSIBLE POLYMER COMPOSITIONS |
摘要 |
The water dispersibility of water-soluble polymer particles can be improved by a method which comprises the following step: i) foaming a fluid composition comprising a compound A) having a weight average molecular weight of less than 10,000 or a water-insoluble polymer B) having a weight average molecular weight of at least 10,000; ii) contacting the produced foam with water-soluble polymer particles having a weight average molecular weight of at least 10,000; and iii) drying the particles, whereby the foam collapses during the contacting and/or drying step and the water-soluble polymer particles are encrusted with the compound having a weight average molecular weight of less than 10,000 or the water-insoluble polymer having a weight average molecular weight of at least 10,000. |
申请公布号 |
EP2164474(A2) |
申请公布日期 |
2010.03.24 |
申请号 |
EP20080730958 |
申请日期 |
2008.02.28 |
申请人 |
DOW GLOBAL TECHNOLOGIES INC. |
发明人 |
KEARY, COLIN, M.;SHESKEY, PAUL, J.;BALWINSKI, KAREN, M. |
分类号 |
A61K9/50;A61K8/00;C08F291/00 |
主分类号 |
A61K9/50 |
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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