发明名称 |
POLYETHYLENE ORIENTED FILM AND MANUFACTURE 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 |
KR920004744(B1) |
申请公布日期 |
1992.06.15 |
申请号 |
KR19890012862 |
申请日期 |
1989.09.06 |
申请人 |
TONEN PETROLEUM CHEMICAL CO., LTD. |
发明人 |
ITABA, YASHUMI;YOSHIHUGI, YUTAKA;KONDO, DAGAYOSHI;SAKAMOTO, ITHIRO |
分类号 |
B29C55/12;B29C55/00;B29C55/14;B29K23/00;B29K105/24;B29L7/00;(IPC1-7):B29C55/12 |
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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