发明授权
US4284671A Polyester compositions for gas and moisture barrier materials 失效
用于气体和水分阻隔材料的聚酯组合物

Polyester compositions for gas and moisture barrier materials
摘要:
Polymer blends of a polyester and polyvinyl alcohol, or their copolymers, may be fabricated into barrier packaging materials having very low permeabilities to oxygen, other fixed gases and moisture.
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