发明名称 |
MULTILAYERED BARRIER STRUCTURES FOR PACKAGING APPLICATIONS AND METHOD FOR THE PREPARATION THEREOF |
摘要 |
<p>Multilayered barrier film products providing gas and moisture barrier properties. The film products comprise at least a first polymer film having low permeability to moisture and a heterogeneous polymer blend film containing a gas barrier polymer and a second polymer distributed in the gas barrier polymer, so as to allow the heterogeneous polymer blend film to adhere to the first polymer film. A method for the preparation of multilayered barrier film products includes the steps of forming a gas barrier polymer film from a heterogeneous polymer blend containing a gas barrier polymer and a second polymer and, bonding a moisture barrier polymer film to at least one side of the gas barrier polymer film. The method can be practiced utilizing conventional coextrusion equipment.</p> |
申请公布号 |
EP0429185(A3) |
申请公布日期 |
1991.09.18 |
申请号 |
EP19900311729 |
申请日期 |
1990.10.25 |
申请人 |
THE STANDARD OIL COMPANY |
发明人 |
COFFEY, GERALD P.;PERCEC, ELENA SIMONA;MELAMUD, LUCY |
分类号 |
B65D65/40;B32B7/02;B32B27/00;B32B27/08;(IPC1-7):B32B27/00 |
主分类号 |
B65D65/40 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|