发明名称 |
Method for producing an extruded molded article of ethylene polymer and the film |
摘要 |
The object is to provide a method for producing a film excellent in a quality of odorless or free from deteriorating taste of food contained in a package of the extruded molded article by using an ethylene-α-olefin copolymer excellent in extrusion molding processability. This object is achieved by a method for producing an extruded molded article comprising a step of extruding a copolymer of ethylene and α-olefin of from 3 to 20 carbon atoms having an activation energy for melt flow of not less than 50 kJ/mol under one of the following conditions: (a) a temperature of melted resin at die gap of T-die is not more than 200° C., (b) a temperature of melted resin at die gap of tubular tie is not more than 170° C.
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申请公布号 |
US7871557(B2) |
申请公布日期 |
2011.01.18 |
申请号 |
US20040947540 |
申请日期 |
2004.09.23 |
申请人 |
SUMITOMO CHEMICAL COMPANY, LTD. |
发明人 |
ISEKI YUKI;CHIKANARI KENZO;SUZUKI YASURO |
分类号 |
C08F8/00;A22C13/00 |
主分类号 |
C08F8/00 |
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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