Patent ID: 6835791
Filing Date: 2004-12-28
Classification: B29C,B29K,C08J,C08L

Abstract:
A film stretched at least uniaxially, the film comprising a layer comprising a copolymer of propylene with &agr;-olefin and/or ethylene such that in measurement of a DSC curve of the copolymer of propylene with &agr;-olefin and/or ethylene the amount of the heat absorbed in the temperature range of from Tâˆ’10 (Â° C.) to T+10 (Â° C.) accounts for from 15 to 36% of the amount of the heat absorbed in the temperature range of from 53 to 170Â° C., wherein T denotes a temperature (Â° C.) at which a maximum endothermic peak appears in the DSC curve,wherein the ethylene content of the copolymer is not more than 5 mol %.