Release liners for production of molded products
    41.
    发明授权
    Release liners for production of molded products 失效
    用于生产模制产品的脱模衬垫

    公开(公告)号:US5709931A

    公开(公告)日:1998-01-20

    申请号:US512780

    申请日:1995-08-09

    摘要: A mold release liner for a heated pressure mold for making products such as printed circuit boards is preferably made without polymer films or chemical release agents utilizing two or more wet-laid fiber layers of cellulose or cellulose derivative fibers (such as wood, cotton, cellulose acetate, or rayon fibers, or mixtures of these). The first layer has a sufficiently low density so that it acts as a cushion and absorbs deformation when used as a release liner in the mold (typically it has a thickness of between 8-250 mils, most desirably 40-90 mils, and a basis weight of about 25-350 pounds per ream, most desirably 130-160 pounds per ream). A second layer is of much higher density than the first layer and readily releases from the molds, for example comprising condenser tissue or a similar product, having a thickness of between 0.5-10 mils and a basis weight of 4-50 pounds per ream of 500 sheets. The first and second layers are in face-to-face engagement with each other, and may be adhesively laminated together with sheet, spray, liquid, or powder adhesive. A third layer, substantially like the second layer but on the opposite side of the first face, may also be provided.

    摘要翻译: 用于制造诸如印刷电路板的产品的加热压模的脱模衬垫优选地不用聚合物膜或使用两种或更多种纤维素或纤维素衍生物纤维(例如木材,棉花,纤维素)的湿法成网纤维层的化学脱模剂 乙酸酯或人造丝纤维,或它们的混合物)。 第一层具有足够低的密度,使得其用作衬垫并且当用作模具中的剥离衬垫时吸收变形(通常其厚度为8至50密耳,最优选为40-90密耳,基底为 重量约25-350磅每份,最理想的是130-160磅每份)。 第二层具有比第一层高得多的密度,并且容易地从模具中排出,例如包括冷凝器组织或类似产品,其厚度在0.5-10密耳和每重量4-50磅的基重之间 500张。 第一层和第二层彼此面对面地接合,并且可以与片材,喷雾,液体或粉末粘合剂粘合地层压在一起。 也可以提供基本上类似于第二层但在第一面的相对侧上的第三层。

    Components that can exhibit low smoke, toxic fume and burning
characteristics, and their manufacture
    48.
    发明授权
    Components that can exhibit low smoke, toxic fume and burning characteristics, and their manufacture 失效
    可显示低烟,有毒烟雾和燃烧特性的组分及其制造

    公开(公告)号:US4784902A

    公开(公告)日:1988-11-15

    申请号:US907880

    申请日:1986-09-16

    申请人: Geoffrey Crompton

    发明人: Geoffrey Crompton

    IPC分类号: B32B27/04 E04B1/94 B32B5/16

    摘要: A component such as a basic building panel comprises a first layer of phenolic resin impregnated glass fibre, a second layer of the same material and a block of foamed phenolic resin therebetween. The panel was formed in a mould shaped to form a flange around the panel, the flange being formed by adherence of the edges of the first and second layers to each other.The panel is made by placing a layer of settable phenolic resin impregnated glass fibre mat in the mould, applying a foamable mixture of phenolic resin to said first layer and covering the foamable resin with a second layer of settable phenolic resin impregnated glass fibre mat before closing the mould. Foaming of the phenolic resin starts very quickly and when more or less completed, the mould is passed into an oven to set the phenolic resin in the outer layers.

    摘要翻译: 诸如基本建筑面板的部件包括第一层酚醛树脂浸渍的玻璃纤维,第二层相同的材料和一块泡沫酚醛树脂。 面板形成为成形为围绕面板形成凸缘的模具,凸缘通过使第一和第二层的边缘彼此粘附而形成。 面板是通过将一层可固化的酚醛树脂浸渍的玻璃纤维垫放置在模具中,将酚醛树脂的可发泡混合物施加到所述第一层并且在封闭之前用第二层可固化酚醛树脂浸渍的玻璃纤维垫覆盖可发泡树脂 模具。 酚醛树脂的发泡开始非常快,并且当多或少完成时,将模具通入烘箱中以将酚醛树脂固化在外层中。

    Thermoformable composite articles
    49.
    发明授权
    Thermoformable composite articles 失效
    可热成型复合制品

    公开(公告)号:US4695501A

    公开(公告)日:1987-09-22

    申请号:US598655

    申请日:1984-04-10

    摘要: A thermoformable composite article comprises a core layer made of a synthetic resin foam, a pair of adhesive layers in contact with the opposite, upper and lower surfaces of the core layer, and a pair of fabric layers superposed on the opposite upper and lower surfaces of the core layer, the fabric layers being bonded to the core layer by the adhesive layers. At least one of the fabric layers is made of a non-woven fabric which has been impregnated with a thermoplastic or thermosetting resin. The thermoformable composite articles of the present invention are useful as liners for automotive interiors.

    摘要翻译: 一种可热成形的复合制品包括由合成树脂泡沫制成的芯层,与芯层的相对的上,下表面接触的一对粘合剂层,以及叠置在相对的上表面和下表面上的一对织物层 芯层,织物层通过粘合剂层粘合到芯层。 织物层中的至少一个由已经用热塑性或热固性树脂浸渍的无纺织物制成。 本发明的可热成形的复合制品可用作汽车内饰的衬里。