Microporous breathable building and construction materials comprising coated woven and/or nonwoven fabrics, and method
    12.
    发明申请
    Microporous breathable building and construction materials comprising coated woven and/or nonwoven fabrics, and method 有权
    微孔透气建筑物和包括涂布机织和/或非织造织物的建筑材料及方法

    公开(公告)号:US20070178784A1

    公开(公告)日:2007-08-02

    申请号:US11698324

    申请日:2007-01-26

    IPC分类号: B32B3/00 B32B27/12

    摘要: Breathable materials comprise a fabric layer and a polymer film layer thereon, the polymer film layer comprising a polymer composition and a filler, wherein the breathable material has undergone a physical manipulation to render the polymer film layer microporous such that the WVTR of the breathable material is greater than about 50 g/m2·24 hr, and wherein the breathable material has a first length dimension and a first width dimension before said physical manipulation and a second length dimension and a second width dimension after said physical manipulation, wherein the second length dimension is no more than about 2% greater than the first length dimension and the second width dimension is no more than about 2% greater than the first width dimension. Methods of making a breathable material comprise forming a polymer film layer comprising a polymer composition and a filler; bonding the polymer film layer to a fabric layer to form a laminate; and applying a physical manipulation to the laminate to render the polymer film layer microporous such that the WVTR of the resulting breathable material is greater than about 50 g/m2·24 hr; wherein the breathable material has a first length dimension and a first width dimension before said physical manipulation and a second length dimension and a second width dimension after said physical manipulation, wherein the second length dimension is no more than about 2% greater than the first length dimension and the second width dimension is no more than about 2% greater than the first width dimension.

    摘要翻译: 透气材料在其上包括织物层和聚合物膜层,聚合物膜层包含聚合物组合物和填料,其中透气材料经过物理操作以使聚合物膜层微孔,使得透气材料的WVTR为 大于约50g / m 2·24小时,并且其中所述透气材料在所述物理操纵之前具有第一长度尺寸和第一宽度尺寸,并且其中所述透气材料具有在所述物理操纵之后的第二长度尺寸和第二宽度尺寸 物理操纵,其中所述第二长度尺寸不大于所述第一长度尺寸的约2%,并且所述第二宽度尺寸不大于所述第一宽度尺寸的大约2%。 制造透气材料的方法包括形成包含聚合物组合物和填料的聚合物膜层; 将聚合物膜层粘合到织物层以形成层压体; 以及对所述层压体进行物理操作以使所述聚合物膜层微孔,使得所得透气材料的WVTR大于约50g / m 2·24小时; 其中所述透气材料在所述物理操纵之前具有第一长度尺寸和第一宽度尺寸,并且在所述物理操纵之后具有第二长度尺寸和第二宽度尺寸,其中所述第二长度尺寸不大于所述第一长度的大约2% 尺寸和第二宽度尺寸不大于比第一宽度尺寸大约2%。

    Method and apparatus for pin-hole prevention in zone laminates
    14.
    发明授权
    Method and apparatus for pin-hole prevention in zone laminates 失效
    区域层压板针孔预防方法及装置

    公开(公告)号:US06673297B2

    公开(公告)日:2004-01-06

    申请号:US09829366

    申请日:2001-04-09

    IPC分类号: B29C5500

    摘要: The method and apparatus of the present invention prevents the formation of pin-holes during stretching of strip laminates in the cross-machine direction (CD). Pin-holes are prevented by creating slack areas (10a) along the length of the laminate (10) where the edges of the non-woven strips (14) meet with the polymer film (12), pressing the slack areas (10a) into the interdigital stretching rollers (26) without stretching the slack areas (10a), and stretching the remainder of the laminate (10) in a typical manner. The slack areas (10a) are formed prior to interdigitation by, for example, formation of a furrow, a fold or a corrugation.

    摘要翻译: 本发明的方法和装置防止在横向机械方向(CD)上拉伸带材层压板时形成针孔。 通过沿着层叠体(10)的长度形成松弛区域(10a),其中无纺布条(14)的边缘与聚合物膜(12)相接,将松弛区域(10a)压入 叉指拉伸辊(26),而不拉伸松弛区域(10a),并以典型的方式拉伸层压板(10)的其余部分。 松弛区域(10a)通过例如沟槽,褶皱或波纹的形成在交叉指向之前形成。