Claims
- 1. 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.
- 2. A container according to claim 1 wherein said first and second portions are thermoplastic and have resistance to temperatures in excess of 220.degree. F.
- 3. A container according to claim 1 wherein said first and second portions are independently selected from the group consisting of polyolefins, polycarbonates, polysulfones, phenoxy resins, polyimines, ionomeric resins and acetal polymers.
- 4. A container according to claim 1 wherein said third portion barrier layer is selected from the group consisting of polyvinylidene chloride, polyvinyl acetate, acrylonitrile polymers and methacrylonitrile polymers.
- 5. A container according to claim 1 including an inner fourth portion of a thermoplastic material resistant to temperatures in excess of 175.degree. F. between said first portion and said third portion.
- 6. A container according to claim 1 wherein said neck is externally threaded.
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a continuation of application Ser. No. 309,346, filed Nov. 24, 1972, now abandoned, which in turn is a continuation-in-part of copending application Ser. No. 71,734 for "Method and Apparatus for Making Lined Plastic Containers" filed Sept. 14, 1970 by Emery I. Valyi, now U.S. Pat. No. 3,717,544 and copending application Ser. No. 100,050 for "Method for Molding Plastic Containers" filed Dec. 21, 1971 by Emery I. Valyi, now U.S. Pat. No. 3,719,735.
US Referenced Citations (6)
Related Publications (1)
|
Number |
Date |
Country |
|
100050 |
Dec 1971 |
|
Continuations (1)
|
Number |
Date |
Country |
Parent |
309346 |
Nov 1972 |
|
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
71734 |
Sep 1970 |
|