| abstract |
(57) Abstract: The present invention relates to at least one surface layer comprising (1) a surface friction improving additive, and (2) mPE, wherein mPE is 4 or less, Mw / Mn and 50% or more CDBI. having, homopolymers or ethylene and C 3 -C 20 olefins ethylene (preferably octene or hexene) a copolymer of a film comprising the at least one surface layer, at least one surface of the mPE corona discharge And when tested in accordance with ASTM D-1894 after storage for 7 days at 23 ° C. and 50% relative humidity, compared to the coefficient of friction before corona discharge treatment, the treated mPE surface layer A film wherein the coefficient of friction is increased by at least 20-60% and the coefficient of friction of the corona treated mPE surface is higher than the other surface layer |