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    Multilayer nonwoven fibrous mats, laminates and method
    6.
    发明公开
    Multilayer nonwoven fibrous mats, laminates and method 有权
    多层无纺布，层压板和方法

    公开(公告)号：EP1746209A3

    公开(公告)日：2009-11-04

    申请号：EP06013807.0

    申请日：2006-07-04

    申请人： Johns Manville International, Inc.

    发明人： Kajander, Richard Emil ,  Swartz, Paul Russel ,  Jaffee, Alan Michael ,  Kindle, Richard Jon

    IPC分类号： D21H27/30 ,  D21F11/08 ,  D21F11/04

    CPC分类号： D21H27/30 ,  D21F11/04 ,  Y10T156/10 ,  Y10T428/31993 ,  Y10T442/608

    摘要： A multilayer fibrous nonwoven mat containing at least one transition zone comprised of a mixture of the slurries used to form the layers on each side of the transition zone, the transition zone having a thickness of at least 1 percent of the thickness of the mat. At least one of the layers contains glass fibers. The multilayer mats are particularly useful as facers on gypsum wall board, insulating foam, a wood material and a broad range of other materials. The multilayer mats are made by a method that involves using a lamella in the forming box on a wet laid mat machine, between slurries, the lamella ending a significant distance prior to a moving forming wire. The transition zone or zones provide superior interlaminar shear strength and other properties compared to multilayer fibrous mats produced on wet laid machines having two or more separate forming boxes.

    System and method of agglomerating, resultant product and method of backing a liner in the agglomerator
    7.
    发明公开
    System and method of agglomerating, resultant product and method of backing a liner in the agglomerator 有权
    装置和附聚得到的产物和方法的方法用于在团聚器附接的内衬

    公开(公告)号：EP1724009A3

    公开(公告)日：2009-09-09

    申请号：EP06009941.3

    申请日：2006-05-15

    申请人： Johns Manville International, Inc.

    发明人： Thomason, Darryl

    IPC分类号： B01J2/18 ,  B01F11/00 ,  C03B37/14 ,  B01F11/02

    CPC分类号： D04H1/76 ,  B01F11/0077 ,  B01F11/0094 ,  B01J2/18 ,  D04H1/4209 ,  D04H1/732 ,  Y10S425/23

    摘要： A new system and method for making agglomerates from material like wet chopped glass fiber strand segments is disclosed and the agglomerates so produced. Agglomerates, made by feeding wet chopped fiber strand segments into a wave chamber having a vibrating curved surface supporting a curved, dimpled liner working surface have improved density and flow characteristics compared with dry chopped strands, but it was discovered that the dimpled liner flexes during operation during vibration causing undesirable variation in properties like agglomerate size. In the invention the dimpled liner is backed up with a substantially non-compressible material and this results in agglomerates that have even better uniformity of flow and agglomerate diameters. Typical backing materials include a particulate material, an elastomer, a rididized elastomer, slurry or liquid, or wire or slivers of metal.