发明名称 |
High performance aqueous polyurethanes dispersion and methods of fabricating the same |
摘要 |
Disclosed are high performance aqueous polyurethanes and methods of making the same. The aqueous polyurethane is prepared by prepolymerizing the following components (a), (b), and (c) in the absence of aliphatic or cycloaliphatic diisocyanates; and chain-extending the hydrophilic prepolymer with component (d): (a) 10-40 wt % of an aromatic diisocyanate consisting of toluene diisocyanate (TDI); (b) 1-15 wt % of a compound containing active hydrogen and a hydrophilic group or a group capable of forming hydrophilicity; (c) 30-80 wt % of a polyol; and (d) 0.1-5 wt % of a chain extender having active hydrogen. The aqueous dispersions of the polyurethane have good storage stability and the dried films produced therefrom possess superior mechanical properties.
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申请公布号 |
US2005020767(A1) |
申请公布日期 |
2005.01.27 |
申请号 |
US20040878789 |
申请日期 |
2004.06.28 |
申请人 |
LO HUEY-HUEY;CHEN WAN-HSIANG;CHEN RUEI-SHIN;CHEN CHIH-CHIEN |
发明人 |
LO HUEY-HUEY;CHEN WAN-HSIANG;CHEN RUEI-SHIN;CHEN CHIH-CHIEN |
分类号 |
C08G18/08;C08G18/12;C08G18/42;C08G18/48;C08G18/66;C09D175/04;(IPC1-7):C08L75/00 |
主分类号 |
C08G18/08 |
代理机构 |
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主权项 |
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地址 |
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