发明名称 |
TEMPERATURE SENSITIVE POLYMERS AND WATER-DISPERSIBLE PRODUCTS CONTAINING THE POLYMERS |
摘要 |
The present invention is directed to a novel process of making N-isopropyl acrylamide (NiPAm) polymers based upon the reaction of poly(acrylic acid) and N-isopropylamine. The disclosed method of the present invention uses polyacrylic acid as a starting material to synthesize NiPAm polymers. In one embodiment, the present invention discloses a condensation reaction of an intermediate salt to form homopolymers, copolymers and terpolymers of N-isopropyl acrylamide (NiPAm) with acrylic acid and/or alkyl acrylates in a molten state, which is adaptable to a continuous reactive extrusion process. Binder compositions, water-dispersible products and thermoformable articles containing the NiPAm polymers are also disclosed. |
申请公布号 |
EP0950072(A1) |
申请公布日期 |
1999.10.20 |
申请号 |
EP19970950939 |
申请日期 |
1997.12.12 |
申请人 |
KIMBERLY-CLARK WORLDWIDE, INC. |
发明人 |
MUMICK, PAVNEET, SINGH;CHANG, YIHUA;WANG, JAMES, HONGXUE |
分类号 |
A61F13/15;A61F13/00;A61F13/20;A61F13/551;A61L15/00;A61L15/24;A61L15/62;C08F8/32;C08F20/56 |
主分类号 |
A61F13/15 |
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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