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Title: Water base block polyurethane, its preparing method and water-proof, heat insulation and wet permeable material made thereof
Other Titles: 水基嵌段聚氨酯、其制法及由其制备的防水、保暖、透湿性材料
Authors: Hu, J
Fan, H
Issue Date: 7-Mar-2007
Publisher: 中华人民共和国国家知识产权局
Source: 中国专利 ZL 200410002551.8 How to cite?
Abstract: The present invention features that the water base block polyurethane is prepared with component A as soft phase block prepolymer and component B as hard phase block prepolymer through further reaction in water. The component A is prepared with catalyst, polyether or polyester diol, aromatic or fatty diisocyanate, and chain expander short-chain fatty diol in certain proportion; and the component B is prepared with aromatic diisocyanate, cross-linking agent trihydroxyl polyol, chain expander short-chain fatty diol, hydroxyl radical containing short-chain fatty diol and neutralizer short-chain fatty organic butyl amine in certain proportion. The present invention also provides waterproof, heat insulating and moisture permeating material with the polyurethane.
Rights: 专利权人: The Hong Kong Polytechnic University.
Appears in Collections:Patent

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