发明申请
- 专利标题： Polyurethane dispersions and coatings made therefrom
- 专利标题（中）： 聚氨酯分散体和由其制成的涂料
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申请号： US10789887申请日： 2004-02-27
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公开(公告)号： US20050182187A1公开(公告)日： 2005-08-18
- 发明人: William Koonce , Debkumar Bhattacharjee , Surendar Kaul
- 申请人： William Koonce , Debkumar Bhattacharjee , Surendar Kaul
- 主分类号： C08G18/08
- IPC分类号： C08G18/08 ; C08K3/00 ; C08K5/04 ; C08K5/21 ; C08L75/04
摘要：
A polyurethane having enhanced properties is made from an aqueous polyurethane dispersion having therein a nonvolatile, non-reactive, property enhancing water-soluble (NNPEW) compound such as urea. Even though the NNPEW is soluble in water, the NNPEW remains in the polyurethane after being exposed to water. In another embodiment, the NNPEW may react with a compound present in the dispersion other than the polyurethane particles of the dispersion when removing the water of the dispersion to form the polyurethane or upon subsequent heating.
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