Epoxy group-containing vinylidene fluoride copolymer and its application to secondary battery
申请人:KUREHA KAGAKU KOGYO KABUSHIKI KAISHA
公开号:EP0751157A1
公开(公告)日:1997-01-02
A vinylidene fluoride copolymer having a relatively high molecular weight is formed by copolymerizing (a) vinylidene fluoride as a principal component, (b) a small amount of epoxy group-containing monomer, and (c) an optional component, such as an unsaturated dibasic acid monoester functioning as a curing agent for the epoxy group. When cured with an optional epoxy curing agent, the vinylidene fluoride copolymer provides a cured product having an adhesion with a metal substrate, etc., and also showing excellent solvent resistance and chemical resistance. The vinylidene fluoride copolymer is particularly suitable for constituting a binder for producing an electrode for non-aqueous solvent-type secondary battery.
一种具有相对较高分子量的偏氟乙烯共聚物是由以下物质共聚而成:(a) 作为主成分的偏氟乙烯;(b) 少量含环氧基的单体;(c) 任选成分,如作为环氧基固化剂的不饱和二元酸单酯。当与任选的环氧固化剂一起固化时,偏氟乙烯共聚物可提供一种与金属基材等具有粘合力的固化产品,同时还具有优异的耐溶剂性和耐化学性。这种偏氟乙烯共聚物尤其适用于构成粘合剂,用于生产非水溶剂型二次电池的电极。