| abstract |
A film for liquid packaging containers, having at least one layer comprising a resin composition (X) containing polypropylene resin (a) and at least one type of hydrogenated block copolymer (b). The hydrogenated block copolymer (b) is a hydrogenated product of a block copolymer including: a polymer bock (A) comprising mainly an aromatic vinyl compound unit; and a polymer block (B) comprising mainly an isoprene (Ip) unit, a butadiene (Bd) unit, or an isoprene (Ip) unit and a butadiene (Bd) unit. In the resin composition (X), the hydrogenated block copolymer (b) has a phase-separated structure forming both (i) an island phase or co-continuous structure, having a long axis of at least 1 µm, and (ii) an island phase having a long axis of no more than 300 nm. The mass ratio [(a)/{(a)+(b)}] between the polypropylene resin (a) and the hydrogenated block copolymer (b) is 61/100-95/100 in the resin composition (X). |