| 摘要 |
PURPOSE:To improve heat resistance by forming a mixture of a propylene/ alkenylsilane copolymer and a specific compound into a sheet or film, stretching it, and treating the resulting film with a solution of a transition metal compound. CONSTITUTION:Propylene is copolymerized with 0.001-30mol% alkenylsilane in the presence of a catalyst comprising a transition metal compound and an organometallic compound to obtain a propylene/alkenylsilane copolymer having an intrinsic viscosity (at 135 deg.C in tetralin) of 0.1-10. A mixture of 100 pts.wt. this copolymer and 0.01-10 pts.wt. compound having at least two unsaturated bonds is melt-molded into a sheet or film, which is stretched at least monoaxially to obtain a film having a thickness of 1-300mum. The film is immersed in a solution containing 0.000001-0.1g/l transition metal compound at ordinary temp. to 200 deg.C for several minutes to tens of hours. |
