发明授权
- 专利标题： Transparent polyamide and multi-ply barrier films containing same
- 专利标题（中）： 含有其的透明聚酰胺和多层屏障膜
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申请号： US778635申请日： 1997-01-03
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公开(公告)号： US5686192A公开(公告)日： 1997-11-11
- 发明人: Ulrich Presenz , Manfred Hewel
- 申请人： Ulrich Presenz , Manfred Hewel
- 申请人地址： CHX Zurich
- 专利权人： EMS-Inventa AG
- 当前专利权人： EMS-Inventa AG
- 当前专利权人地址： CHX Zurich
- 优先权： DEX4309534.8 19930324
- 主分类号： B32B27/08
- IPC分类号： B32B27/08 ; B32B27/34 ; B65D65/40 ; C08G69/26 ; A23C19/16 ; B65D85/76
摘要：
The invention relates to a barrier layer resisting the transmission of oxygen for multi-layer barrier film characterized in that it is made of a transparent copolyamide comprising three components. The first component is hexamethylenediamine and adipic acid. The second component is hexamethylenediamine and azelaic acid, hexamethylenediamine and sebacic acid, and mixtures thereof. The third component is hexamethylene-diamine and isophthalic acid, hexamethylenediamine and terephthalic acid, and mixtures thereof. The total of all components is 100 mol %, and the ratio of the barrier effects in the barrier layer with respect to carbon dioxide and oxygen is at least 3:1.
公开/授权文献
- US4113493A Amorphous polyester adhesives for photographic materials 公开/授权日：1978-09-12
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