会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明授权
    • Process for preparing vulcanization promoter for fluorine-containing
elastomers
    • 制备含氟弹性体硫化促进剂的方法
    • US5981423A
    • 1999-11-09
    • US150782
    • 1998-09-10
    • Hiroshi KawasakiAkihiro NarakiHaruyoshi Tatsu
    • Hiroshi KawasakiAkihiro NarakiHaruyoshi Tatsu
    • C07F9/54C08F8/00B01J31/18
    • C07F9/54
    • A vulcanization promoter for fluorine-containing elastomers prepared by (1) allowing 1.01 to 1.15 moles of a quaternary phosphonium salt to react with one mole of monoalkali metal salt of bisphenol AF in alcohol, (2) allowing 2.02 to 2.30 moles of a quaternary phosphonium salt to react with one mole of a dialkali metal salt of bisphenol AF in alcohol, (3) allowing one mole each of an alkali metal alkoxide and bisphenol AF to react with 1.01 to 1.15 moles of a quaternary phosphonium salt in alcohol or (4) subjecting one mole of bisphenol AF, 1.01 to 1.15 moles of a quaternary phosphonium salt and one mole of an alkali metal alkoxide to reaction in alcohol, each followed by further addition of the bisphenol AF thereto, or (5) allowing 1.01 to 1.15 moles of a quaternary phosphonium salt to react with one of 1/4alkali metal salt of bisphenol AF in alcohol gives much more improved vulcanization characteristics such as vulcanization speed, etc. while maintaining advantageous properties such as distinguished normal state physical properties as observed in case of vulcanization promoters of bisphenol AF-quaternary phosphonium salt series.
    • 一种含氟弹性体的硫化促进剂,其通过(1)使1.01至1.15摩尔季鏻盐与醇中的1摩尔双酚AF的单碱金属盐反应,(2)允许2.02至2.30摩尔季鏻 盐与醇1摩尔双酚AF的二碱金属盐反应,(3)使一摩尔碱金属醇盐和双酚AF与醇中的季碘盐1.01至1.15摩尔反应,或(4) 使1摩尔双酚AF,1.01至1.15摩尔季鏻盐和1摩尔碱金属醇盐在醇中反应,然后进一步加入双酚AF,或(5)使1.01至1.15摩尔的 与醇中的+ E,fra 1/4 + EE双酚AF碱金属盐中的一种反应的季鏻盐提供了更多改进的硫化特性如硫化速度等,同时保持有利的丙 例如在双酚AF-季鏻盐系列的硫化促进剂的情况下观察到的正常状态物理性质。