发明名称 |
TAMPA PLASTICA REVESTIDA E PROCESSO PARA A SUA FABRICACAO |
摘要 |
<p>A cap for closing a container comprises a vapour permeable body and carries a coating of a relatively vapour impermeable material which is applied to the cap as a liquid and then cured to form a solid. The coating is permanently adhered to the cap body usually on the inside and contains a polymer which acts as a barrier usually to oxygen at least, and is preferably a vinyl chloride/vinylidene chloride copolymer or polyvinylidene chloride. Methods of making the coated caps are also disclosed.</p> |
申请公布号 |
BR8606372(A) |
申请公布日期 |
1987.10.13 |
申请号 |
BR19868606372 |
申请日期 |
1986.12.22 |
申请人 |
W.R GRACE & CO. |
发明人 |
DAVID NUTTALL SAMUEL;KENNETH MARTIN SINNOTT;NOEL ERNEST DAVENPORT |
分类号 |
B05D5/00;B05D7/02;B65D39/00;B65D41/00;B65D41/02;C08J7/04;(IPC1-7):B65D53/00 |
主分类号 |
B05D5/00 |
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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