| 摘要 |
<p>PURPOSE:To improve oil resistance, perfume holding properties, and olefin smell transfer preventive properties by heat-molding a laminate sheet comprising a polybutyleneterephthalate resin layer, at least, on one surface of a polypropylene resin sheet. CONSTITUTION:Polybutyleneterephthalate resin PBT is polyester that is obtained such that 1,4-butanediol and terephthalic acid or lower alcoholic ester thereof are condensed. At least, one surface of a polypropylene resin PP sheet comprises a PBT layer and, concretely, comprising an inner layer PBT/outer layer PP, an inner layer PBT/intermediate PP/outer layer PBT, an inner layer PP/outer layer PBT. A container having the PBT layer in its inner surface has excellent oil resistance and olefin smell transfer preventive properties. The molding of a laminate sheet to the container can be executed by an ordinary heat-molding method such a vacuum molding method, a plug assist molding method, a pressure molding method, or the like.</p> |
