Multilayered hollow plastic container
OwnerEmery I. Valyiinventor
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Abstract
A multilayered, hollow plastic container having resistance to elevated temperatures and barrier resistance, and a method for providing same. The container has an outer first portion of a material resistant to temperatures in excess of 175.degree. F., an inner second portion of a material resistant to temperatures in excess of 175.degree. F. and a third portion barrier layer of a thermoplastic material between said first and second portions. Also, a multilayered plastic sheet material having resistance to elevated temperatures and barrier resistance.
Claims6
A multilayered, blown, seamless hollow plastic container having an open molded neck and having resistance to elevated temperatures and fluid barrier resistance having an outer pressure molded first portion of a plastic material resistant to temperatures in excess of 175.degree. F. and an inner drawn second portion of a plastic material resistant to temperatures in excess of 175.degree. F., wherein said container has a third drawn portion fluid barrier layer of a thermoplastic material between said first and second portions and in substantial conformity therewith, said barrier layer having a lower temperature resistance than said first and second portions, whereby said barrier layer progressively softens and reforms upon exposure to elevated temperature and subsequent cooling to retain its barrier resistant characteristics.
Dependencies are inferred from the claim text.