发明名称 |
PACKAGING SHRINK FILM |
摘要 |
A packaging shrink film consisting essentially of a random copolymer of propylene and an alpha -olefin having 4 or more carbon atoms or a random copolymer of propylene, an alpha -olefin having 4 or more carbon atoms and ethylene, said random copolymer satisfying the following conditions: (1) the content of an alpha -olefin having 4 or more carbon atoms in the copolymer is 8 to 30 mole %, (2) the content of ethylene in the copolymer is 3 mole % or less, (3) the content of a cold xylene-soluble portion in the copolymer is 15 to 60% by weight, and (4) the content of a boiling n-heptane-insoluble portion in the copolymer is 7% by weight or more, said film having been stretched. The packaging shrink film is soft and excels in low-temperature shrink characteristics as well as in transparency and gloss. |
申请公布号 |
KR920002776(B1) |
申请公布日期 |
1992.04.03 |
申请号 |
KR19840007924 |
申请日期 |
1984.12.13 |
申请人 |
SUMITOMO CHEMICAL CO., LTD. |
发明人 |
SHUJI, KITAMURA;KIYOHIKO, NAKAE;TADATOSHI, OGAWA;TERUAKI, YOSHIDA;HAJIME, SADATOSHI |
分类号 |
B29C55/00;B29C55/12;B29C61/00;B29C61/06;B29K23/00;B29K105/02;B29L7/00;C08J5/18;C08L23/10;C08L23/16;C08L23/18 |
主分类号 |
B29C55/00 |
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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