发明名称 |
Plastic closure with compression molded sealing/barrier liner |
摘要 |
A plastic closure that comprises a cap having a base with a peripheral skirt defining the cap interior and threads on the skirt for securing the closure to a container. A liner is secured to the interior of the cap, preferably by being compression molded in situ on the base. The liner consists essentially of a multiplicity of alternating layers of a matrix polymer material such as EVA and a barrier material such as EVOH to resist transmission of gas, water vapor and/or flavorants through the liner. The matrix polymer material preferably is preblended with a compatibilizer material such as a maleic anhydride grafted polymer that ties the matrix polymer material to the barrier material.
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申请公布号 |
US7651651(B2) |
申请公布日期 |
2010.01.26 |
申请号 |
US20030680840 |
申请日期 |
2003.10.07 |
申请人 |
REXAM CLOSURE SYSTEMS INC. |
发明人 |
RIFFER DAVID B. |
分类号 |
B29C70/80;B65D53/00;B29B9/12;B29C43/18;B29C43/20;B29C43/34;B29K101/12;B29L31/56;B65D41/04;B65D53/04;C09K3/10 |
主分类号 |
B29C70/80 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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