WERKWIJZE VOOR HET VERVAARDIGEN VAN KUNSTSTOF-HOUDERS DOOR VERVORMEN OF DIEPTREKKEN VAN EEN UIT VERSCHILLENDE POLYMERE LAGEN BESTAANDE VOORVORM OF VEL, DAT IS VERKREGEN DOOR SMELT-COEXTRUSIE VAN DE VERSCHILLENDE LAGEN.

摘要

A transparent multi-layer container comprising a co-extrudate of an oxygen-barrier resin layer and an orienting resin layer which is monoaxially or biaxially oriented is disclosed. An adhesive resin layer is preferably interposed between the oxygen-barrier layer and the orienting resin layer, and this co-extrudate is drawn and molded at a specific temperature determined relatively to the melting points and softening points of the respective resins. This container is excellent in the combination of transparency, rigidity, mechanical strength, gas-barrier property and interlaminar peel strength.