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热词
    • 3. 发明授权
    • Extensible film or sheet and process for producing the same
    • 可扩展的薄膜或薄片及其制造方法
    • US5110870A
    • 1992-05-05
    • US459328
    • 1989-12-29
    • Toshio FujiiYoshinao ShinoharaKeishin Handa
    • Toshio FujiiYoshinao ShinoharaKeishin Handa
    • C08J5/18C08L23/08
    • C08J5/18C08L23/0815C08J2323/08C08L2205/02
    • This invention provides an extensible film or sheet comprising 100 to 60 parts by weight of an ethylene copolymer having a density of less than 0.910 g/cm.sup.3 and 0 to 40 parts by weight of a linear polyethylene having a density of 0.910 to 0.945 g/cm.sup.3, specified by the following properties:1) film blocking as expressed by 180.degree. peel strength is 60 g/25 mm or less;2) tensile elongation is 750% or more;3) Elmendorf tear strength is 30 kg.cm/cm.sup.2 or more; and4) 1% secant modulus is 20 to 2,000 kg/cm.sup.2.The film or sheet of this invention has excellent extensibility and is free from blocking. It is also excellent in flexibility and hand and drape and can be preferably used as a film for gather of disposable diapers, etc., packing sheet for disposable diapers, and the like.
    • 本发明提供一种可延展膜或片材,其包含100至60重量份的密度小于0.910克/厘米3的乙烯共聚物和0至40重量份密度为0.910至0.945克/厘米3的直链聚乙烯 ,由以下性质指定:1)180度剥离强度表示的膜阻断为60g / 25mm以下; 2)拉伸伸长率为750%以上; 3)Elmendorf撕裂强度为30kg·cm / cm 2以上; 和4)1%割草模量为20至2,000kg / cm2。 本发明的薄膜或薄片具有优异的延展性,并且不会发生阻塞。 柔软性和手感和悬垂性也优异,可以优选用作一次性尿布等的收集膜,一次性尿布的包装片等。