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US4666772A Opaque, heat sealable multilayer polyolefin films 失效
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Opaque, heat sealable multilayer polyolefin films
摘要:
Heatsealable opaque multilayer films, particularly wrapping films, having a high sealing strength, at low sealing temperature, favorable optical properties and machine compatibility based on a film of a propylene polymer and a linear statistical ethylene copolymer of low density as the heat sealing layer.
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