发明名称 |
MEHRSCHNITTFOLIE AUS ETHYLENCOPOLYMER |
摘要 |
<p>PCT No. PCT/CA95/00064 Sec. 371 Date Sep. 19, 1996 Sec. 102(e) Date Sep. 19, 1996 PCT Filed Feb. 8, 1995 PCT Pub. No. WO95/21743 PCT Pub. Date Aug. 17, 1995A multilayer film and a pouch containing a flowable material are disclosed. The multilayer film is made from two layers of a sealant film with an interposed layer of a polyethylene. The sealant film is made from a material comprising 10 to 100 parts by weight of a copolymer of ethylene and at least one C4-C10 alpha-olefin manufactured in a polymerization process using a single-site polymerization catalyst and from 0 to 90 parts by weight of at least one polymer selected from the group consisting of a linear copolymer of ethylene and at least one C4-C10 alpha-olephin having a density of from 0.900 to 0.930 g/cm3 and a melt index of from 0.3 to 2.0 dg/min, a high-pressure polyethylene having a density of from 0.916 to 0.930 g/cm3 and a melt index of from about 1 to 10 dg/min, and blends thereof. The polyethylene of the interposed layer is a high density polyethylene with a density of at least 0.930 g/cm3 and a melt index of less than dg/min. The pouch is made from the multilayer film and has transversely sealed ends. The pouches are particularly useful in the packaging of flowable materials e.g. milk, especially using a vertical form, fill and seal apparatus.</p> |
申请公布号 |
DE69505499(D1) |
申请公布日期 |
1998.11.26 |
申请号 |
DE1995605499 |
申请日期 |
1995.02.08 |
申请人 |
DUPONT CANADA INC., MISSISSAUGA, ONTARIO, CA |
发明人 |
BRECK, ALAN, KEITH, KINGSTON, ONTARIO K7M 6G7, CA;VERDONE, ALANA, KINGSTON, ONTARIO K7K 6K7, CA |
分类号 |
B32B27/32;C08L23/06;C08L23/08;(IPC1-7):B32B27/32;C09J123/16;C08L23/16 |
主分类号 |
B32B27/32 |
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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