Method of making a fluid transmitting porous tube or sheet
    1.
    发明授权
    Method of making a fluid transmitting porous tube or sheet 失效
    制造流体透过多孔管或片的方法

    公开(公告)号:US3939237A

    公开(公告)日:1976-02-17

    申请号:US462592

    申请日:1974-04-22

    摘要: A novel tube or sheet-shaped fluid transmitting porous material containing as a substrate, a polyolefin. Such porous material can be readily produced by subjecting a mixture of a polyolefin, a specific secondary polymer and a decomposition type blowing agent to extrusion moulding. The present porous material has certain unique features in its structure characterized in that there are recurring communications between cell wall openings forming a passage through which a fluid can pass. This porous material has excellent gas and liquid transmitting properties as well as an excellent filtering property and, in addition, is superior in resistance to chemicals and also has mechanical strength. Therefore, the porous material according to this invention is widely applicable in agriculture and industry as well as in the fields of synthetic leather etc.

    摘要翻译: 一种新颖的管状或片状流体传输多孔材料,其包含基质,聚烯烃。 这样的多孔材料可以容易地通过使聚烯烃,特定的二次聚合物和分解型发泡剂的混合物进行挤出成型来制造。 本发明的多孔材料在其结构中具有某些独特的特征,其特征在于,在细胞壁开口之间存在循环通信,其形成流体可以通过的通道。 该多孔质材料具有优异的气液传输性能以及优异的过滤性能,另外,耐化学性也优异,并且还具有机械强度。 因此,根据本发明的多孔材料广泛适用于农业和工业以及合成革等领域。

    Fluid transmitting polyolefin foams and method of making the same
    2.
    发明授权
    Fluid transmitting polyolefin foams and method of making the same 失效
    流体传输聚烯烃泡沫及其制备方法

    公开(公告)号:US4384032A

    公开(公告)日:1983-05-17

    申请号:US5324

    申请日:1979-01-22

    IPC分类号: C08J9/04 C08J9/00 B32B27/32

    摘要: A fluid transmitting polyolefin foam having a special open-cell cellular structure as compared with the conventional polyolefin foams having all cells closed is disclosed. Such a novel fluid transmitting polyolefin foam is produced by mixing a polyolefin with a polymer other than a polyolefin, said polyolefin and/or said polymer other than a polyolefin having a blowing agent incorporated therein and/or adhered thereto and subjecting the resulting mixture to extrusion moulding. The present fluid transmitting polyolefin foam has a wide variety of uses, for example, as a synthetic leather, synthetic filter cloth, separator of storage battery, synthetic paper, package, etc.

    摘要翻译: 公开了一种具有特殊开孔细胞结构的流体传输聚烯烃泡沫体,与具有全部细胞封闭的常规聚烯烃泡沫体相比。 这种新颖的流体传输聚烯烃泡沫体是通过将聚烯烃与除聚烯烃以外的聚合物,所述聚烯烃和/或所述聚合物混合而成的聚烯烃制成的,所述聚烯烃和/或所述聚合物不同于其中引入和/或粘附有发泡剂并且/ 成型。 本发明的流体传递性聚烯烃泡沫体具有多种用途,例如合成革,合成滤布,蓄电池隔膜,合成纸,包装等。

    Ethylene-vinyl acetate film suitable for stretch wrapping
    3.
    发明授权
    Ethylene-vinyl acetate film suitable for stretch wrapping 失效
    适用于拉伸包装的乙烯 - 乙酸乙烯酯薄膜

    公开(公告)号:US4066811A

    公开(公告)日:1978-01-03

    申请号:US566513

    申请日:1975-04-08

    摘要: There are disclosed films for stretch wrapping which comprise an olefin polymer, preferably a specific ethylene-vinyl acetate copolymer (referred to as "EVA copolymer" hereinafter) and specific polyalkylene ether polyols and non-ionic surfactants of fatty acid and polyhydric alcohol ester derivatives and which have suitable orientation expressed by heat shrinkage and excellent elastic recovery, by which excellent mechanical strength, wrapping finish, optical characteristics and preservability of the goods, especially fresh foods are attained. Method for producing said films is also disclosed. These films are suitable also for wrapping by automatic wrapping machines.

    摘要翻译: 公开了包括烯烃聚合物,优选特定乙烯 - 乙酸乙烯酯共聚物(以下称为“EVA共聚物”)和特定的聚亚烷基醚多元醇和脂肪酸和多元醇酯衍生物的非离子表面活性剂的膜, 其具有由热收缩和优异的弹性恢复表示的合适的取向,由此获得优异的机械强度,包装整理剂,光学特性和商品的保存性,特别是新鲜食品。 还公开了制备所述膜的方法。 这些膜也适用于通过自动包装机包装。