Multilayered structure

Details Multilayered structure Multilayered structure

B - Operations, Transporting

32

B

B32B 27/08 (2006.01) B32B 7/12 (2006.01) B32B 27/30 (2006.01) B32B 27/32 (2006.01) B65D 1/00 (2006.01) B65D 1/28 (2006.01) B65D 65/40 (2006.01)

Patent

CA 2310925

The present invention provides a multilayered structure where an A layer made of an ethylene-vinyl alcohol copolymer resin (A) and a C layer made of a polypropylene resin (C) are laminated via a B layer made of an adhesive resin (B). The ethylene content of the ethylene-vinyl alcohol copolymer resin (A) is 20 to 60 mol%, and the saponification degree of the resin (A) is at least 90%. The melt flow rate (MFR) of the polypropylene resin (C) at 230°C under a load of 2160g is in the range from 0.1 to 100g/10min, and the stereoregularity index [M5] of the polypropylene resin (C) is at least 0.950. Such a multilayered structure has excellent gas barrier properties and moldability.

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