| 摘要 |
PURPOSE:To make it possible to prepare a composition developing no tackiness even if electron beam is irradiated, by adding a polyfunctional monomer to a block copolymer of vinylidene chloride and plypropylene hexafluoride. CONSTITUTION:A block copolymer of vinylidene fluoride and polypropylene hexafluoride is prevented from the development of tackiness when irradiated with electron beam by adding a polyfunctional monomer having two or more of double bond or triple bond functional groups in the molecule thereof to said copolymer. Therefore, this fluorine type elastomer composition can be used in a heat-recoverable article prepared by applying deformation processing to a molded article after the irradiation of electron beam. In addition, a block copolymer consisting a fluorine-containing monomer such as ethylene tetrafluoride other than polypropylene hexafluoride and vinyliden fluoride may be used. |
