发明名称 |
PROCESS FOR MAKING MULTIPHASE POLYMERIC FILM HAVING A LAMELLAR STRUCTURE WITH CONTROLLED PERMEABILITY AND/OR CONTROLLED MECHANICAL PROPERTIES |
摘要 |
A process for making a multiphase polymeric film having a lamellar structure with controlled permeability and/or controlled mechanical properties, comprising the steps of: - preparing a molten blend made of a first polymer phase dispersed in a second polymer phase which is a matrix polymer phase incompatible with the said first phase and of a compatibilizer selected from the group consisting of DEM, MAH, DEM-g-SEBS, MAH-g-SEBS, DEM-g-PP and MAH-g-PP; - extruding the molten blend through a flat die provided with an exit and stretching the so extruded blend downwards said exit at a preselected stretching ratio to produce the said multiphase polymeric film, and - solidifying the extruded film sufficiently rapidly to preserve the lamellar structure and the multiphase polymeric films thereby obtained. Granules with a lamellar structure are obtained by grinding the so obtained multiphase polymeric film and are useful for preparing shaped articles with improved physical properties.
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申请公布号 |
CA2307083(C) |
申请公布日期 |
2007.10.02 |
申请号 |
CA20002307083 |
申请日期 |
2000.04.28 |
申请人 |
UNIVERSITE LAVAL |
发明人 |
BOUSMINA, MOSTO;AIT-KADI, ABDELLATIF |
分类号 |
C08L23/12;B29C55/02;C08J3/20;C08J5/18;C08K5/11;C08L23/02;C08L23/06;C08L23/08;C08L23/10;C08L27/08;C08L29/02;C08L29/04;C08L53/00;C08L67/02;C08L77/00 |
主分类号 |
C08L23/12 |
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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