Aluminum-colored multilayer heat-sealable packaging material
    6.
    发明授权
    Aluminum-colored multilayer heat-sealable packaging material 有权
    铝色多层热封包装材料

    公开(公告)号:US07329460B2

    公开(公告)日:2008-02-12

    申请号:US10181357

    申请日:2001-04-09

    IPC分类号: B32B9/04 B32B27/08

    摘要: The invention relates to a multi-layer heat-sealable packaging material especially for food packages. In addition, objects of the invention are a food package formed of the said packaging material, a method of packaging, and the use of the material for packages. The packaging material (1) comprises a middle layer (3) of fibre material, such as cardboard; at least one polymeric protective layer (4, 5) protecting the product from going bad; and polymeric heat sealing layers (2, 7) preferably on both sides of the packaging material. According to the invention, the heat sealing layer (7) forming the inner surface of the closed package, is blended with light-absorbing pigment, such as carbon black, for protecting the product from visible light. By further blending white pigment, such as titanium dioxide, into the heat sealing layer (7), a grey tint resembling an aluminium foil has been achieved for the layer. The heat sealing polymer may be low-density polyethylene (PE-LD), and an oxygen and aroma proof sealing layer (4) of, for example, ethylene vinyl alcohol copolymer (EVOH) or polyamide (PA) may be provided between it and the cardboard (3).

    摘要翻译: 本发明涉及特别用于食品包装的多层可热封包装材料。 此外,本发明的目的是由所述包装材料形成的食品包装,包装方法和用于包装的材料的使用。 包装材料(1)包括纤维材料的中间层(3),例如纸板; 至少一个保护产品不会变坏的聚合物保护层(4,5); 和聚合物热封层(2,7),优选在包装材料的两侧。 根据本发明,形成封闭封装的内表面的热封层(7)与诸如炭黑的光吸收颜料混合,以保护产品免受可见光的影响。 通过将白色颜料(例如二氧化钛)进一步混合到热封层(7)中,已经实现了类似于铝箔的灰色层。 热封聚合物可以是低密度聚乙烯(PE-LD),并且可以在其与...之间提供例如乙烯 - 乙烯醇共聚物(EVOH)或聚酰胺(PA)的氧气和香气密封层(4) 纸板(3)。

    Extrusion Coating Polyethylene
    10.
    发明申请
    Extrusion Coating Polyethylene 审中-公开
    挤出涂布聚乙烯

    公开(公告)号:US20080097022A1

    公开(公告)日:2008-04-24

    申请号:US11793018

    申请日:2005-01-12

    IPC分类号: C08L23/06

    摘要: The present invention relates to a polymer composition with good chemical properties and barrier properties being multimodal and comprising a polymer (A) having a weight average molecular weight of lower than 6000 g/mol and a polyolefin (B) having a higher weight average molecular weight than polymer (A) and a filler (C), whereby a polymer composition without filler (C) has a density of at least 940 kg/m3.

    摘要翻译: 本发明涉及具有良好化学性质和阻隔性质的多峰型聚合物组合物,其包含重均分子量低于6000g / mol的聚合物(A)和具有较高重均分子量的聚烯烃(B) 比聚合物(A)和填料(C),其中没有填料(C)的聚合物组合物具有至少940kg / m 3的密度。