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    Laminated olefinic polymer sheets for packaging
    1.
    发明授权
    Laminated olefinic polymer sheets for packaging 失效
    用于包装的层压烯烃聚合物片材

    公开(公告)号：US4211811A

    公开(公告)日：1980-07-08

    申请号：US861945

    申请日：1977-12-19

    申请人： Fosco Bordini ,  Luigi Mauri

    发明人： Fosco Bordini ,  Luigi Mauri

    IPC分类号： C09J7/02 ,  B32B15/08 ,  B32B15/085 ,  B65D65/40 ,  B32B27/06

    CPC分类号： B32B15/08 ,  Y10S428/91 ,  Y10T428/31515 ,  Y10T428/31587 ,  Y10T428/31605 ,  Y10T428/31692 ,  Y10T428/31913 ,  Y10T428/31928

    摘要： There is disclosed a bonded sheet for packaging, having a thickness ranging from 20 to 200 microns, a low transmittance, a low permeability to gases and vapors, a high resistance to perforation, and high anti-static characteristics, said bonded sheet consisting essentially of two films prepared from substantially crystalline polyolefin polymers or mixtures thereof and, optionally, from an interposed adhesive layer, wherein at least one of the two films is a film oriented by the stretching of polypropylene essentially constituted by isotactic macromolecules and having a melt index between 0.5 and 5, and wherein at least one of the two films is coated, on the surface thereof which is in contact with the other film, with a metallized layer (preferably aluminum) having a resistivity between 1 and 5 Ohms. One of the two films may be a film, optionally oriented by stretching, prepared from a polymer selected from the class consisting of a polyethylene having a melt index of from 0.5 to 15, a polypropylene having a melt index of from 5 to 20, a crystalline propylene-ethylene copolymer containing from 0.1 to 15% by weight of ethylene and having a melt index of from 3 to 20, and mixtures thereof.

    摘要翻译： 公开了一种用于包装的粘合片，其厚度范围为20-200微米，低透光率，低气体和蒸汽渗透性，高耐穿孔性和高抗静电特性，所述粘合片基本上由 由基本上结晶的聚烯烃聚合物或其混合物和任选地从插入的粘合剂层制备的两个膜，其中两个膜中的至少一个是通过基本上由全同立构大分子构成的聚丙烯的拉伸取向的膜，并且熔体指数在0.5 和5，并且其中两个膜中的至少一个在其与另一个膜接触的表面上涂覆有电阻率为1至5欧姆的金属化层（优选为铝）。 两种膜中的一种可以是任选由拉伸取向的膜，其由选自熔体指数为0.5至15的聚乙烯的聚合物，熔体指数为5至20的聚丙烯， 含有0.1至15重量％乙烯且熔体指数为3至20的结晶丙烯 - 乙烯共聚物及其混合物。

    Polyolefin films with a high resistance to sticking against welding bars having a top coating comprising a combination of an epoxy resin, an acrylic resin and nitrocellulose
    2.
    发明授权
    Polyolefin films with a high resistance to sticking against welding bars having a top coating comprising a combination of an epoxy resin, an acrylic resin and nitrocellulose 失效
    具有高耐粘附性的聚烯烃膜，其具有包括环氧树脂，丙烯酸树脂和硝化纤维素的组合的顶部涂层

    公开(公告)号：US4232089A

    公开(公告)日：1980-11-04

    申请号：US953875

    申请日：1978-10-23

    申请人： Fosco Bordini ,  Luigi Mauri

    发明人： Fosco Bordini ,  Luigi Mauri

    IPC分类号： B32B27/32 ,  C08J7/04 ,  C09D101/18 ,  C09D133/04 ,  B32B27/38

    CPC分类号： C08J7/042 ,  C08J2323/02 ,  C08J2433/06 ,  C08J2477/00 ,  Y10S428/91 ,  Y10T428/31511 ,  Y10T428/31938

    摘要： Films comprising alpha-olefin polymers, such as normally solid polypropylene consisting essentially of recurring propylene units and having a substantial crystalline polypropylene content, and in particular isotactic polypropylene, are rendered easily thermoweldable and/or impervious to gases and vapors, and also given improved resistance to sticking against the welding bars of automatic and semi-automatic machines conventionally used for the manufacture of containers, envelops, bags, vessels and, in general, other manufactured articles useful in the packaging industry, by coating the films with a first layer comprising a polyalkyleneimine and a second layer comprising a mixture of an epoxy resin, an acrylic or methacrylic polymer or copolymer, and nitrocellulose.

    摘要翻译： 包含α-烯烃聚合物的膜，例如基本上由重复丙烯单元组成并具有基本上结晶聚丙烯含量的通常为固体的聚丙烯，特别是全同立构聚丙烯，易于热熔接和/或不透气体和蒸汽，并且还具有改善的电阻 粘附在通常用于制造容器，信封，袋子，容器以及通常用于包装工业的其它制品的自动和半自动机器的焊条上，通过用包含第一层的第一层 聚烯化亚胺和包含环氧树脂，丙烯酸或甲基丙烯酸聚合物或共聚物和硝化纤维素的混合物的第二层。

    Metalized bonded sheets comprising a polyolefinic film and a polychlorovinyl film
    5.
    发明授权
    Metalized bonded sheets comprising a polyolefinic film and a polychlorovinyl film 失效
    包含聚烯烃膜和聚氯乙烯基膜的金属化粘合片

    公开(公告)号：US4387135A

    公开(公告)日：1983-06-07

    申请号：US128089

    申请日：1980-03-07

    申请人： Fosco Bordini ,  Luigi Mauri

    发明人： Fosco Bordini ,  Luigi Mauri

    IPC分类号： B32B15/085 ,  B32B15/04 ,  B32B27/08 ,  B65D65/40 ,  B32B15/08

    CPC分类号： B32B27/08 ,  Y10T428/31692 ,  Y10T428/31699 ,  Y10T428/3192 ,  Y10T428/31935

    摘要： A bonded sheet for packaging is disclosed having a thickness of from 20 to 200 microns and comprising two films, one of which is obtained from chlorovinyl polymers and the other from olefinic polymers, and characterized in that one of the two films has, on its surface in contact with the other film, a metalized coating with a resistivity of from 1 to 5 Ohms. The chlorovinyl polymer film is a film, optionally stretched, prepared from polymers or copolymers of vinyl chloride, having a Fikentscher value K of from 40 to 80. The polyolefinic film is a film, optionally oriented by stretching, prepared from a polymer selected from the class consisting of a polyethylene with a melt index of from 0.5 to 15, a polypropylene with a melt index of from 1 to 20, a crystalline propylene/ethylene copolymer containing from 0.1 to 15% by weight of ethylene and with a melt index of from 1 to 20, or mixtures thereof. The metalized layer preferably consists of aluminum, and at least one of the two films is coated with a thermowelding layer.

    摘要翻译： 公开了一种用于包装的粘合片，其厚度为20至200微米，并且包含两个膜，其中一个膜由氯乙烯基聚合物获得，另一个由烯属聚合物获得，其特征在于，两个膜中的一个在其表面上 与另一个膜接触，电阻率为1至5欧姆的金属化涂层。 氯乙烯基聚合物膜是任选拉伸的，由氯乙烯​​的聚合物或共聚物制成，具有40至80的Fikentscher值K。聚烯烃膜是任选由拉伸取向的膜，其由选自以下的聚合物制备： 熔体指数为0.5〜15的聚乙烯，熔体指数为1〜20的聚丙烯，含有0.1〜15重量％的乙烯，熔体指数为 1至20，或其混合物。 金属化层优选由铝组成，并且两个膜中的至少一个涂覆有热焊接层。