| abstract |
(57) [Summary] [Purpose] To provide a tubular container which has excellent heat resistance with a very small shrinkage rate even in high temperature retort sterilization and which has excellent chemical resistance. [Structure] (1) A part or all of which is graft-modified with an unsaturated carboxylic acid or a derivative thereof and has a density of 0.9 And polyethylene 200 g / cm 3 to 0.975 g / cm 3, a density of less than 0.900 g / cm 3 Ethylene - inner and outer layers made of a composition of an α-olefin copolymer, (2) A squeezed tubular cylindrical container capable of high temperature sterilization, characterized in that a heat-resistant squeezed tubular cylindrical container composed of an intermediate layer made of an oxygen barrier resin is irradiated with an electron beam. The mixing ratio of the ethylene-α-olefin copolymer to polyethylene is 5 to 50 by weight. % Is preferable, and the absorbed dose of electron beam is It is preferably 50 to 500 kGy. |