发明名称 |
LOW NMP AQUEOUS POLYURETHANE COMPOSITION |
摘要 |
<p>An aqueous composition with a sediment content≰5%, comprising a polyurethane dispersion wherein the polyurethane has an acid value in the range of from 25 to 65 mgKOH/g and comprises (i) 36 to 60 wt % of at least one aromatic polyisocyanate and where the polyurethane is prepared in the presence of (a)≰5 wt % of 1-methyl-2-pyrrolidinone by weight of the polyurethane, (b) 5 to 100 wt % of 1-ethyl-2-pyrrolidinone by weight of polyurethane and (c) water.</p> |
申请公布号 |
EP1814925(A1) |
申请公布日期 |
2007.08.08 |
申请号 |
EP20050755360 |
申请日期 |
2005.06.28 |
申请人 |
DSM IP ASSETS B.V. |
发明人 |
VAN CASTEREN, ILSE;ROELANDS, MARC;OVERBEEK, GERARDUS, CORNELIS;TENNEBROEK, RONALD |
分类号 |
C08G18/08;C08G18/12;C08G18/28;C08G18/66;C08G18/72;C08G18/76;C08L33/10;C08L75/04;C09D175/04 |
主分类号 |
C08G18/08 |
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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