发明名称 |
Polymeric compositions and their use on container closures. |
摘要 |
<p>A sealing composition for a container closure comprises a polymeric matrix material and its oxygen permeability is reduced by incorporating ethylene vinyl alcohol polymer into the composition. The composition can be in fluid or meltable form ready for application to a closure or it can be present as a deposit on the closure, for instance a gasket around the closure.</p> |
申请公布号 |
EP0349305(A2) |
申请公布日期 |
1990.01.03 |
申请号 |
EP19890306588 |
申请日期 |
1989.06.29 |
申请人 |
W.R. GRACE & CO.-CONN. |
发明人 |
WILLIAMS, RICHARD STEPHEN;SAMUEL, DAVID NUTTALL |
分类号 |
B65D53/00;B65D81/24;C09K3/10;C12H1/22 |
主分类号 |
B65D53/00 |
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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