发明名称 |
Oriented polyethylene film and production thereof. |
摘要 |
<p>Disclosed are oriented polyethylene films having specific elongation and strength, which are excellent in linear tearability and clear tearability, suitably used for packaging and produced by longitudinally stretching a polyethylene resin sheet in which the degree of crosslinking inwardly decreases across the thickness thereof at a draw ratio of at least 5 times at a temperature of not higher than the melting point of a polyethylene resin forming the polyethylene resin sheet, and laterally stretching said sheet 4 to 8 times at a temperature ranging from above the melting point of the polyethylene resin up to 10 DEG C higher than the melting point thereof.</p> |
申请公布号 |
EP0358446(A2) |
申请公布日期 |
1990.03.14 |
申请号 |
EP19890308966 |
申请日期 |
1989.09.05 |
申请人 |
TONEN SEKIYUKAGAKU K.K. |
发明人 |
ITABA, YASUSHI;YOSHIFUJI, YUTAKA;KONDO, TAKAYOSHI;SAKAMOTO, ICHIRO |
分类号 |
B29C55/12;B29C55/00;B29C55/14;B29K23/00;B29K105/24;B29L7/00 |
主分类号 |
B29C55/12 |
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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