本发明涉及一种具有封端或不饱和键结构的水性聚氨酯的生产过程和对织物防皱、保型的整理方法，其作为织物整理剂的应用是一种新的应用。采用预聚物聚合及封端技术，制得具有反应型端基的稳定的水性聚氨酯，其乳胶粒径分布在５０－５００ｎｍ可调控。具有粘接强度高、抗冲性能优良、耐水解性好以及形状记忆的功能。稀释后作为织物整理，能使织物获得防皱以及折痕保留等功能，同时保留良好的柔软性、手感度和较佳的白度，具有极佳的耐水洗性，无明显的强力损失。使用形状记忆水性聚氨酯整理剂，还可以使织物在热水或热空气中能恢复日常穿着或洗涤中产生的折皱，具有明显的形状记忆功能。
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The invention relates to a novel application of puerarin and derivates thereof in the pharmaceutical field. The puerarin and the derivates thereof have a COX-2-selective inhibition effect, are safe in use without toxic side effect, and have notable effectiveness. The puerarin and the derivates there.....
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The invention discloses a reactive power compensator, aiming at solving the problem of weak power factor in a power distribution system, which comprises: a DC capacitor used for imitating an AC capacitor or a reactor to generate reactive power compensation current; a solid-state switch and a high-fr.....
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The present invention relates to a fabric finishing auxiliaries function preparation and application method in which the fabric finishing functional additives contains nanoscale powder of natural protein fiber, the weight percentage of 0.5% to 5%; binder, its weight percentage of 0.5% to 1.5%; softe.....
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The invention provides a zoom lens system, which comprises a zooming unit, a compensating unit and an imaging unit arranged on a same optical axis in turn, a driving transmission mechanism and a micro-processing control unit, wherein the driving transmission mechanism comprises a zooming stepping mo.....
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