申请人:E.I. DU PONT DE NEMOURS AND COMPANY
公开号:EP0140207A2
公开(公告)日:1985-05-08
A process for rapidly curing a fluoroelastomer which comprises mixing and heating a fluoroelastomer copolymer whose interpolymerized units consist essentially of vinylidene fluoride, at least one other fluorine-containing monomer copolymerizable therewith, said monomer being a compound which contains 2-7 carbon atoms, contains no bromine, and contains at least as many fluorine atoms as carbon atoms and contains up to 3 mole percent of units derived from a bromine-containing olefin; a quaternary phosphonium compound; a bisphenol or an ammonium or phosphonium salt thereof; and a dialkylaminopyridine or a diazabicyclo compound having the formula
where n is 2-8 or
0.2-0.8 parts by weight per hundred parts fluoroelastomer of a carboxylic acid salt of (a) or (b).
一种快速固化氟弹性体的工艺,包括混合并加热一种氟弹性体共聚物,其间聚单元主要由偏氟乙烯、至少一种可与之共聚的其他含氟单体组成,所述单体是一种含有2-7个碳原子的化合物,不含溴,至少含有与碳原子数量相同的氟原子,并含有高达3摩尔%的由含溴烯烃衍生的单元;季鏻化合物;双酚或其铵盐或鏻盐;以及二烷基氨基吡啶或二氮杂双环化合物,其式为
其中 n 为 2-8 或
每 100 份氟橡胶中含 0.2-0.8 份(按重量计)(a)或(b)的羧酸盐。