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
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