JPH11348205A5

JPH11348205A5 -

Info

Publication number: JPH11348205A5
Application number: JP1998160611A
Authority: JP
Filing date: 1998-06-09
Publication date: 2005-10-13

Description

【００１４】
【課題を解決するための手段】
本発明者らは、上記課題を達成するために鋭意検討した結果、本発明をなすに至った。すなわち、本発明は下記の通りである。
１）１２０℃以下の融点を有するポリオレフィン系樹脂の表層（Ａ）と、内層としてエチレンα−オレフィン共重合体層（Ｂ）、及びポリプロピレン系樹脂層（Ｃ）をそれぞれ少なくとも１層有する、少なくとも４層からなる多層フィルムにおいて、該層（Ｂ）がエチレンα−オレフィン共重合体と高圧法低密度ポリエチレンを混合したものであり、該エチレンα−オレフィン共重合体は密度が０．８６０〜０．９３５ｇ／ｃｍ^３であって、１９０℃、荷重２．１６ｋｇｆにおけるメルトフローレートが０．２〜５．０ｇ／１０分であり、該高圧法低密度ポリエチレンは１９０℃、荷重２．１６ｋｇｆにおけるメルトフローレートが０．１〜５．０ｇ／１０分であり、かつ該エチレンα−オレフィン共重合体と該高圧法低密度ポリエチレンとの混合重量比が７５：２５〜９５：５であることを特徴とする多層シュリンクフィルム。 [0014]
[Means for solving the problem]
The present inventors have conducted extensive research to achieve the above object, and as a result have arrived at the present invention. That is, the present invention is as follows.
1) A multilayer shrink film consisting of at least four layers, having a surface layer (A) of a polyolefin resin having a melting point of 120°C or less, and at least one inner layer each of an ethylene α-olefin copolymer layer (B) and a polypropylene resin layer (C), wherein layer (B) is a blend of an ethylene α-olefin copolymer and a high-pressure low-density polyethylene, the ethylene α-olefin copolymer having a density of 0.860 to 0.935 g/ ^cm3 and a melt flow rate of 0.2 to 5.0 g/10 min at 190°C and a load of 2.16 kgf, the high-pressure low-density polyethylene having a melt flow rate of 0.1 to 5.0 g/10 min at 190°C and a load of 2.16 kgf, and the blending weight ratio of the ethylene α-olefin copolymer to the high-pressure low-density polyethylene is 75:25 to 95:5.

Claims

1. A multilayer shrink film comprising at least four layers, the multilayer film having a surface layer (A) of a polyolefin resin having a melting point of 120°C or less, and at least one inner layer each of an ethylene α-olefin copolymer layer (B) and a polypropylene resin layer (C), wherein the layer (B) is a blend of an ethylene α-olefin copolymer and a high-pressure low-density polyethylene, the ethylene α-olefin copolymer having a density of 0.860 to 0.935 g/ ^cm3 and a melt flow rate of 0.2 to 5.0 g/10 min at 190°C and a load of 2.16 kgf, the high-pressure low-density polyethylene having a melt flow rate of 0.1 to 5.0 g/10 min at 190°C and a load of 2.16 kgf, and the blending weight ratio of the ethylene α-olefin copolymer to the high-pressure low-density polyethylene being 75:25 to 95:5.