| 摘要 |
Disclosed are films or sheets comprising a crystalline propylene polymer composition which is comprised of, by weight, (A) from about 30 to 65% of a copolymer of propylene with a C4-8 alpha-olefin containing from 80 to 98% propylene, and (B) 35-70% of a co- or terpolymer of propylene with ethylene and, optionally, a C4-8 alpha-olefin having an ethylene content of 5 to 10% when ethylene is the sole comonomer and an ethylene content of 0.5 to 5% and a C4-8 alpha-olefin content of 1 to 9.5% when both ethylene and a C4-8 alpha-olefin are used as comonomers. Coextruded films or sheets and laminates wherein at least one layer is a film or sheet as described above, and films or sheets of blends of the propylene polymer composition and an olefin polymer are also disclosed.
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