Bond strength measurement of composite panel products
    2.
    发明授权
    Bond strength measurement of composite panel products 失效
    复合板产品的粘结强度测量

    公开(公告)号:US4750368A

    公开(公告)日:1988-06-14

    申请号:US53929

    申请日:1987-05-26

    摘要: The invention is a method for the on-line nondestructive determination of the internal bond strength of composite panel products. The method involves impinging an ultrasound pulse against the panel by a first transducer and receiving a transmitted pulse at a second transducer. The received signal strength, temperature and panel thickness are entered into an algorithm from which the internal bond may be calculated. Preferably the receiving transducer is located on the opposite side of the panel and displaced somewhat from the first transducer. The inclusion of temperature and panel thickness as independent variables greatly improves the accuracy over that available from uncorrected ultrasound testing.

    摘要翻译: 本发明是在线非破坏性测定复合板产品的内部结合强度的方法。 该方法包括通过第一换能器对面板施加超声脉冲,并在第二换能器处接收发射的脉冲。 接收的信号强度,温度和面板厚度被输入到可以从其计算内部键的算法中。 优选地,接收换能器位于面板的相对侧并且稍微偏离第一换能器。 将温度和面板厚度作为独立变量的含量大大提高了从未校正的超声波测试可用的准确度。

    Gas barrier packaging board
    7.
    发明申请
    Gas barrier packaging board 审中-公开
    气体屏障包装板

    公开(公告)号:US20080299403A1

    公开(公告)日:2008-12-04

    申请号:US11756854

    申请日:2007-06-01

    IPC分类号: B32B27/10

    摘要: A paperboard structure having a three layer product side construction of a gas barrier layer comprising a blend of at least one of aliphatic nylon, aromatic nylon, or a blend of nylons with polyethylene terephthalate, a tie layer and a low density polyethylene layer.

    摘要翻译: 一种纸板结构,其具有阻气层的三层产品侧结构,其包含脂族尼龙,芳族尼龙或尼龙与聚对苯二甲酸乙二醇酯,粘结层和低密度聚乙烯层中的至少一种的共混物。

    Multi-ply cellulosic products using high-bulk cellulosic fibers
    8.
    发明授权
    Multi-ply cellulosic products using high-bulk cellulosic fibers 失效
    使用大体积纤维素纤维的多层纤维素产品

    公开(公告)号:US5906894A

    公开(公告)日:1999-05-25

    申请号:US726143

    申请日:1996-10-04

    摘要: A multi-ply paperboard comprising at least one ply of conventional cellulose fibers and from about 0.1 to about 6 weight percent of a water-borne binding agent; and at least one ply containing up to 20% of chemically intra-fiber crosslinked cellulosic high-bulk fibers and from about 0.1 to about 6 weight percent of a water-borne binding agent. The water-borne binding agent may be a starch, a modified starch, a polyvinyl alcohol, a polyvinyl acetate, a polyethylene/acrylic acid copolymer, an acrylic acid polymer, a polyacrylate, a polyacrylamide, a polyamine, guar gum, an oxidized polyethylene, a polyvinyl chloride, a polyvinyl chloride/acrylic acid copolymer, an acrylonitrile/butadiene/styrene copolymer or polyacrylonitrile. A method for making the paperboard is disclosed.

    摘要翻译: 包含至少一层常规纤维素纤维和约0.1至约6重量%水性粘合剂的多层纸板; 和至少一层,其含有高达20%的化学纤维内交联的纤维素高松散纤维和约0.1至约6重量%的水性粘合剂。 水性粘合剂可以是淀粉,改性淀粉,聚乙烯醇,聚乙酸乙烯酯,聚乙烯/丙烯酸共聚物,丙烯酸聚合物,聚丙烯酸酯,聚丙烯酰胺,多胺,瓜尔胶,氧化聚乙烯 ,聚氯乙烯,聚氯乙烯/丙烯酸共聚物,丙烯腈/丁二烯/苯乙烯共聚物或聚丙烯腈。 公开了制造纸板的方法。