PLASTIC MULTI-LAYERED HEAT RESISTANT VESSEL

摘要

PURPOSE:To improve transparency by constituting a polypropylene layer comprising multi-layered structure of homo-polypropylene and extremely low density polyethylene of a specific density wherein the mixture is at a specific ratio. CONSTITUTION:A multi-layered container 2 is fabricated by forming an ethylene- vinyl alcohol copolymer layer 13 on a polypropylene layer 15 via an adhesive layer 14 and further heat-molding a polypropylene layer 11 via an adhesive layer 12. The polypropylene layers 11, 15 of the multi-layered container 2 comprises a mixture of homo-polypropylene and extremely low density polyethylene having a density of 0.890 to 0.910g/cm<2>. A mixing ratio of homo- polypropylene and extremely low density polyethylene is in a range of (95:5) to (85:15). Then the layers are heat-sealed by a sealant layer of a lid material 3 between it and the multi-layered container 2. Thus transparency and impact resistance intensity can be improved.