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    • 7. 发明授权
    • Wettable battery separator and process therefor
    • 可湿式电池分离器及其工艺
    • US3951691A
    • 1976-04-20
    • US512372
    • 1974-10-07
    • Walter R. WszolekJoseph A. Cogliano
    • Walter R. WszolekJoseph A. Cogliano
    • D04H1/56H01M2/16H01M2/00
    • H01M2/162D04H1/56
    • This invention relates to a process for imparting permanent wettability to a battery separator comprising a non-woven mat of polyolefin fiber by impregnating said battery separator with an .alpha.-olefin/.alpha.,.beta.-unsaturated acid or anhydride copolymer or terpolymer dissolved in water by reaction with a base and thereafter causing the copolymer or terpolymer to revert to a water-insoluble substantially free acid form by either heating the impregnated battery separator to drive off the base or exposing the impregnated separator to acid. Water-insoluble herein refers to aqueous media having a pH from acidic to essentially neutral.
    • 本发明涉及通过用α-烯烃/α,β-不饱和酸或酸酐共聚物或通过反应溶解在水中的三元共聚物浸渍所述电池隔膜来赋予电池隔膜的永久润湿性的方法,所述电池隔板包括聚烯烃纤维的无纺布垫 然后使共聚物或三元共聚物通过加热浸渍的电池隔板以驱除基底或将浸渍的分离剂暴露于酸而使其回复成不溶于水的基本上游离的酸形式。 水不溶性是指具有pH从酸性至基本中性的水性介质。