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    • 138. 发明授权
    • Method for the preparation of shaped article of crosslinked poly
(vinylidene fluoride)
    • 交联聚(偏二氟乙烯)成型制品的制备方法
    • US5003008A
    • 1991-03-26
    • US427017
    • 1989-10-25
    • Nobuo Kobayashi
    • Nobuo Kobayashi
    • C08J3/24C08F259/08
    • C08F259/08
    • Shaped articles of a crosslinked poly(vinylidene fluoride) resin can be prepared in a relatively simple process to be imparted with greatly improved resistance against heat, water, and chemicals in a much higher productivity than in the conventional electron-beam irradiation method. The method comprises the steps of (a) compounding the resin with an organosilane compound having an ethylenically unsaturated group, e.g., vinyl, and at least one alkoxy group in a molecule and a free-radical generator, e.g., organic peroxides, (b) heating the resin compound to effect graft-polymerization of the organosilane compound to the polymer molecules, (c) shaping the resin compound into a desired form, and (d) heating the shaped body in water containing a silanol-condensation catalyst dissolved or dispersed therein.
    • 交联聚(偏二氟乙烯)树脂的成型制品可以以相对简单的方法制备,以比常规电子束照射方法更高的生产率赋予大大提高的抗热,水和化学品的耐受性。 该方法包括以下步骤:(a)将树脂与分子中具有乙烯基和至少一个烷氧基的有机硅烷化合物和自由基发生剂(例如有机过氧化物)混合,(b) 加热树脂化合物以使有机硅烷化合物与聚合物分子接枝,(c)将树脂化合物成型为所需形式,和(d)在含有溶解或分散在其中的硅烷醇缩合催化剂的水中加热成型体 。