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The uniaxial contractile Characteristic two axial orientation polypropylene film which possesses the high density polyethylene skin
The uniaxial contractile Characteristic two axial orientation polypropylene film which possesses the high density polyethylene skin
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机译:具有高密度聚乙烯表皮的单轴收缩特性两轴取向聚丙烯薄膜
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摘要
A uniaxially heat-shrinkable, biaxially oriented, multilayer film having a polypropylene containing core layer and at least one high density polyethylene containing skin layer adjacent the core layer. The core layer contains isotactic polypropylene and a modifier which reduces the crystallization or crystallinity of the polypropylene by increasing chain imperfections or reducing isotacticity of the polypropylene resin. Examples of materials which are useful as modifiers include atactic polypropylene, syndiotactic polypropylene, ethylene-propylene-butene-1 terpolymer, polybutene-1, and linear low density polyethylene.
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