| 摘要 |
Film or sheet comprising at least one layer of a polyolefin composition consisting, in percentage by weight referred to the sum of component (a1) and (a2) and (b), of: a1) 42-88 wt % of a propylene homopolymer or copolymer of propylene with ethylene and/or one or more C4-C10α-olefin(s), the said homopolymer or copolymer having a solubility in xylene at room temperature (XSm) equal to or less than 10 wt %; a2) 7-39 wt % of a copolymer of ethylene with propylene and/or one or more C4-C10α-olefin(s) containing 50-80 wt % of ethylene derived units and having a solubility in xylene at room temperature of 50-80 wt %; and (b) 0.5-30 wt %, of a butene-1 (co)polymer having: a content of butene-1 derived units of 75 wt % or more, a flexural modulus (MEF) of 70 MPa or less. |
