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    • 5. 发明授权
    • Curable base-resistant fluoroelastomers
    • 可固化耐碱性含氟弹性体
    • US06916887B2
    • 2005-07-12
    • US10404368
    • 2003-04-01
    • Walter Werner Schmiegel
    • Walter Werner Schmiegel
    • C08F210/02C08F214/18C08F214/26C08F216/14C08K5/00C08K5/13C08K5/17C08K5/42C08K5/51C08L27/12C08F116/12
    • C08F214/265C08K5/0025C08K5/13C08L27/12
    • A base resistant, substantially amorphous fluoroelastomer comprising (1) 10-40 mole percent ethylene units, (2) 32-60 mole percent tetrafluoroethylene units, (3) 20-40 mole percent perfluoro ether units selected from the group consisting of perfluoro(alkyl vinyl ethers), perfluoro(alkyl alkenyl ethers) and perfluoro(alkoxy alkenyl ethers), and (4) 0.1 to 15 mole percent of a cure site monomer selected from the group consisting of i) perfluoroalkyl ethylenes and ii) perfluoroalkoxy ethylenes. Such fluoroelastomers may be vulcanized with polyhydroxy curing agents. The resulting vulcanized fluoroelastomers are resistant to attack by amines, strong bases and hydrogen sulfide and possess a combination of good low temperature and high temperature properties and they are resistant to oil swell.
    • 包含(1)10-40摩尔%乙烯单元,(2)32-60摩尔%四氟乙烯单元,(3)20-40摩尔%全氟醚单元的碱性电阻基本无定形含氟弹性体,其选自全氟(烷基 乙烯基醚),全氟(烷基烯基醚)和全氟(烷氧基烯基醚),和(4)选自i)全氟烷基乙烯和ii)全氟烷氧基乙烯的固化部位单体0.1至15摩尔%。 这种含氟弹性体可以用多羟基固化剂硫化。 得到的硫化含氟弹性体耐受胺,强碱和硫化氢的侵蚀,具有良好的低温和高温性能的组合,并且耐油膨胀。
    • 6. 发明授权
    • Curable base-resistant fluoroelastomers
    • 可固化耐碱性含氟弹性体
    • US06887959B2
    • 2005-05-03
    • US10670086
    • 2003-09-24
    • Walter Werner SchmiegelPhan Linh Tang
    • Walter Werner SchmiegelPhan Linh Tang
    • C08K5/053C08F210/02C08F214/26C08F216/14C08K5/00C08K5/136C08L27/18C08F130/02
    • C08F214/262C08K5/0025C08K5/136C08L27/12
    • A base resistant, substantially amorphous fluoroelastomer comprising (1) 10-40 mole percent ethylene units, (2) 32-60 mole percent tetrafluoroethylene units, (3) 20-40 mole percent perfluoro ether units selected from the group consisting of perfluoro(alkyl vinyl ethers), perfluoro(alkyl alkenyl ethers) and perfluoro(alkoxy alkenyl ethers), and (4) 0.1 to 15 mole percent of a cure site monomer selected from the group consisting of i) 3,3,3-trifluoropropene-1, ii) trifluoroethylene, iii) 1,2,3,3,3-pentafluoropropylene, iv) 1,1,3,3,3-pentafluoropropylene, and v) 2,3,3,3-tetrafluoropropene. Such fluoroelastomers may be vulcanized with polyhydroxy curatives. The resulting vulcanized fluoroelastomer compositions are resistant to attack by amines, strong bases and hydrogen sulfide and possess a combination of good low temperature and high temperature properties and they are resistant to oil swell.
    • 包含(1)10-40摩尔%乙烯单元,(2)32-60摩尔%四氟乙烯单元,(3)20-40摩尔%全氟醚单元的碱性电阻基本无定形含氟弹性体,其选自全氟(烷基 乙烯基醚),全氟(烷基烯基醚)和全氟(烷氧基烯基醚),和(4)选自i)3,3,3-三氟丙烯-1, ii)三氟乙烯,iii)1,2,3,3,3-五氟丙烯,iv)1,1,3,3,3-五氟丙烯和v)2,3,3,3-四氟丙烯。 这种含氟弹性体可以用多羟基固化剂硫化。 得到的硫化含氟弹性体组合物耐胺,强碱和硫化氢的侵蚀,具有良好的低温和高温特性的组合,并且耐油膨胀。