发明名称 |
HEAT-SHRINKABLE POLYSTYRENE BASED RESIN FILM ROLL AND METHOD FOR PRODUCTION THEREOF, AND HEAT-SHRINKABLE LABEL |
摘要 |
A film roll comprising a heat-shrinkable polystyrene based resin film wound into a roll, characterized in that, each of the samples taken out from the roll exhibits, in a heat shrinkage test under the condition of the immersion in a hot water at 85 DEG C for 10 seconds, a heat shrinkage rate in the main shrinking direction of within +/- 5% relative to an average rate of the total samples; a heat-shrinkable polystyrene based resin film taken from the roll; a heat-shrinkable label comprising the film; a method for producing the heat-shrinkable polystyrene based resin film roll which comprises using raw material chips having a specific form, or using a hopper having a specific shape for feeding raw material chips to an extruder, or limiting the variation of the surface temperature of a film in a specific production step to a specific range. |
申请公布号 |
EP1426165(B1) |
申请公布日期 |
2009.12.23 |
申请号 |
EP20020762784 |
申请日期 |
2002.08.15 |
申请人 |
TOYOBO CO., LTD. |
发明人 |
TAKEGAWA, YOSHINORI;ITO, KATSUYA;HAYAKAWA, SATOSHI;TABOTA, NORIMI;KOMEDA, SHIGERU;NOSE, KATSUHIKO |
分类号 |
B29C61/02;B29C55/00;B29C63/42;C08J5/18 |
主分类号 |
B29C61/02 |
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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