초록 ▼

A container wall of stretched plastic material has high oxygen barrier properties by incorporating an activating metal into the plastic material. The plastic material is PET in admixture with a polyamide and the metal is either added to the mixture or contained in one or both of the polymers. The ma

A container wall of stretched plastic material has high oxygen barrier properties by incorporating an activating metal into the plastic material. The plastic material is PET in admixture with a polyamide and the metal is either added to the mixture or contained in one or both of the polymers. The material is stretched and aged to produce the container wall with the high oxygen barrier properties. The metal is preferably a transition metal and can be derived from a salt, such as a halide or acetate.

대표청구항 ▼

A container wall comprising stretched and aged material of a mixture of polyethylene terephthalate and polyamide, said mixture containing an activating metal forming active metal complexes having capacity to bond with oxygen for conferring high oxygen barrier properties to the material, the componen

A container wall comprising stretched and aged material of a mixture of polyethylene terephthalate and polyamide, said mixture containing an activating metal forming active metal complexes having capacity to bond with oxygen for conferring high oxygen barrier properties to the material, the components of the mixture being present in respective amounts so that the wall has said high oxygen barrier properties.