| abstract |
(A) a support layer comprising at least one polymer layer; and (b) 50-80 wt% ethylene polymer, 10-40 wt% styrene polymer, and 5-30 wt% styrene-butadiene block copolymer. In a heat-sealable multilayer film (A) comprising a peelable sealing layer of a polymer blend, the block copolymer has an elastic or storage compliance (J '10) at a frequency of 10 rad / s and a frequency of 100 rad / s. Average elasticity or storage compliance (J ' 100 ) at at least 10 −5 Pa − when measured at a temperature of 160 ° C. in a dynamic plate / plate rheometer for a plate diameter of 20 mm and a die gap of 1.8 mm. 1, it preferably is at least 12 × 10 -6 Pa -1 Characterized, however, J '= (1 / G ') / (1 + tan 2 δ), wherein, tanδ = G "/ G ' , G" is the viscous or loss modulus, G' is the elastic or storage It is a modulus. [Selection diagram] None |