| 摘要 |
PURPOSE:To obtain the title composition which can give a molding having excellent high-temperature mechanical properties and a good appearance, by adding a specified crosslinking aid to an ethylene/fluoroolefin copolymer or a mixture thereof with a fluorine-containing elastomer. CONSTITUTION:The title composition prepared by adding a crosslinking accelerator of formula I (wherein X is formula II and R is CH3, C2H5, C3H7, C4H9 or the like, and l, m and n are integers), e.g., a compound of formula III, to an ethylene/fluoroolefin copolymer (e.g., ethylene/tetrafluoroethylene copolymer) or a mixture thereof with a fluorine-containing elastomer (e.g., tetrafluoroethylene/propylene copolymer). This composition can give a crosslinked molding having a good appearance after extrusion and excellent high-temperature mechanical properties and is controlled in volatilization of the crosslinking accelerator during extrusion molding.
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