发明名称 LAMINATED FILM HAVING CROSSWISE EASILY TEARABLE PROPERTY
摘要 PURPOSE:To obtain a laminated film which is superior in tear property, tear direction stability, cutting resistance and transparency, has favorable low- temperature heat seal properties and is suitable for high-speed automatic packing. CONSTITUTION:The title film possesses three layer structure of layers A, B, C, which is substantially a laminated film stretched laterally uniaxially, the layer B is constituted of a propylene polymer having a low melt index as the intermediate layer B, a propylene polymer having a high melt index is laminated to a cooling roll surface side of the layer B as the layer C and a heat seal layer comprised of an olefin polymer having a low melting point is laminated to its opposite side as the layer A.
申请公布号 JPH04229251(A) 申请公布日期 1992.08.18
申请号 JP19900416762 申请日期 1990.12.27
申请人 TOYOBO CO LTD 发明人 OTA SABURO
分类号 B29C55/08;B29K23/00;B29L9/00;B32B7/02;B32B7/10;B32B27/32;B65D65/40 主分类号 B29C55/08
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