发明名称 |
Cold water-soluble polymer particles and method for preparing |
摘要 |
A method for preparing cold water-soluble polymer particles is described. The method includes subjecting a liquid containing a wetting agent or a powder of the wetting agent to dropping or spraying over or mixing with a starting water-soluble polymer particles while fluidizing the starting polymer particles without subsequent forced drying and grinding of the resulting particles. According to the invention, a powder or particulate product of a cold water-soluble polymer having excellent water wettability and capable of being quickly dissolved in water without formation of undissolved powder can be reasonably prepared and obtained from powdery or particulate water-soluble polymers without resorting to forced drying operations. |
申请公布号 |
EP1642922(A1) |
申请公布日期 |
2006.04.05 |
申请号 |
EP20050255927 |
申请日期 |
2005.09.23 |
申请人 |
SHIN-ETSU CHEMICAL CO., LTD. |
发明人 |
HAYAKAWA, KAZUHISA . |
分类号 |
C08J3/12;B29B7/18;B29B7/94;C08J3/05;C08L1/28 |
主分类号 |
C08J3/12 |
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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