Title:
POLYOLEFIN MULTI-LAYER THERMALLY SHRINKABLE FILM
Document Type and Number:
Japanese Patent JP3859808
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a polyolefin multi-layer thermally shrinkable film which is excellent in fusing heat-sealing properties and used suitably for shrink packaging.
SOLUTION: This film includes both surface layers composed of propylene copolymer of 135 to 150°C melting point, 1.0 to 5.0 g/10 min melt flow index, and 200 s or under crystallization apeed, and an intermediate layer composed of a resin composition having straight chain low density polyolefin of 0.900 to 0.925 g/cm3 density. The thickness of the intermediate layer is 30% or over of the whole thickness, and a thickness of both surface layers is respectively 1 μm or over. The film is crosswise and lengthwise respectively drawn three times or over.
Inventors:
Shuichi Morita
Fumio Hotta
Toshikatsu Oyama
Fumio Hotta
Toshikatsu Oyama
Application Number:
JP12150097A
Publication Date:
December 20, 2006
Filing Date:
April 25, 1997
Export Citation:
Assignee:
Kojin Co., Ltd.
International Classes:
B32B7/02; B32B27/32; (IPC1-7): B32B27/32; B32B7/02
Domestic Patent References:
| JP63214446A | ||||
| JP1253445A | ||||
| JP9012739A | ||||
| JP8291236A | ||||
| JP10278195A | ||||
| JP4103347A | ||||
| JP3043436A |
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