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首页> 外国专利> Aluminium laminate /biased multi -ester film oriented to the manufacture of end -of -cans of beverages, method to manufacture an easy laminate and opening end for a can of drink

Aluminium laminate /biased multi -ester film oriented to the manufacture of end -of -cans of beverages, method to manufacture an easy laminate and opening end for a can of drink

机译：面向饮料罐头制造的铝层压板/偏斜多层聚酯薄膜，一种易层压材料的制造方法以及饮料罐的开口端

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摘要

The invention refers to an aluminium laminate /biased multicedered polyester film, comprising successively: -m -an aluminium medium; -c -at least one layer and amorph comprising at least one pet -g copolyester, whose diol units include ethylene units Glycol (eg) and cyclohexanediamimethanol (chdm) units;-b -at least one crystallizable layer B comprising: At least one copolyester PBT -x whose diol units include butylene glycol (bg) units and units of acid include terephthalic acid (ta) units and units of at least one dicarboxylic acid other than terephthalic acid (units of phthal), said units of phthalate being pref Eribly selected from the group consisting of isophthalic acid units (ia),Sebaceous acid units (as),Units of adipic acid (aa) and its mixtures; and Possibly at least one polyester polyethylene terephthalate (pet);-Optionally at least one layer, identical or different from layer B, where: I. The concentration of CHDM units in layer C is between 18 and 34 mol%,Preferably between 22 and 33 mol%;II. The invention also refers to the manufacture of this film and its applications as an aluminium laminate /multi -ester polyester for the manufacture of easily opened edges for cans of beverages.
机译：本发明涉及一种铝层压板/有偏的多层聚酯薄膜，其依次包括：-m-铝介质; -c-至少一层和包含至少一种pet -g共聚酯的无定形物，其二醇单元包括乙烯单元乙二醇（例如）和环己烷二甲醇（chdm）单元; -b-至少一层可结晶层B包括：至少一种共聚酯其二醇单元包括丁二醇（bg）单元和酸单元包括对苯二甲酸（ta）单元和除对苯二甲酸之外的至少一种二羧酸的单元（邻苯二甲酸单元）的PBT-x，所述邻苯二甲酸酯单元是优选选择的选自间苯二甲酸单元（ia），癸二酸单元（as），己二酸单元（aa）及其混合物; -可能是至少一层与B层相同或不同的一层，其中：I. C层中CHDM单元的浓度为18-34 mol％，优选为22-36 mol％。 33mol％; II。本发明还涉及该膜的制造及其作为铝层压板/多酯聚酯的应用，用于制造易开罐的饮料罐的边缘。

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