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Title: Shape memory fiber prepared with shape memory polyurethane and its preparation process
Other Titles: 一种由形状记忆聚氨酯制备的形状记忆纤维及其制备方法
Authors: Hu, J 
Yeung, PKW
Yang, Z
Ye, G
Wong, YW
Issue Date: 4-Jul-2007
Publisher: 中华人民共和国国家知识产权局
Source: 中国专利 ZL 200410049303.9 How to cite?
Abstract: The present invention relates to one kind of shape memory fiber prepared with shape memory polyurethane and its preparation process. The shape memory polyurethane is prepared with material including one hydroxyl containing polymer, chain expander, diisocyanate and blocking agent in the molar ratio of 1 to 1-3 to 2.4-4.8 to 0.8-1.6. The preparation process of the shape memory fiber includes the following steps: preparing shape memory polyurethane with excessive isocyanate; adding blocking agent to obtain blocked shape memory polyurethane; and melt spinning to obtain shape memory fiber. The shape memory fiber of the present invention has very wide temperature regulating range, practical elasticity, strength and shape memory performance and comfortable hand feeling, is easy to spin alone or together with synthetic fiber and natural fiber, and may find wide application in clothing, biomedical material and other fields.
Rights: 专利权人: The Hong Kong Polytechnic University.
Appears in Collections:Patent

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