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    Glass fiber reinforced facer mat
    6.
    发明授权
    Glass fiber reinforced facer mat 有权

    公开(公告)号：US10428450B2

    公开(公告)日：2019-10-01

    申请号：US14979923

    申请日：2015-12-28

    申请人： JOHNS MANVILLE

    发明人： Dale Addison Grove, III ,  Alan Michael Jaffee ,  David Earl Weller, Jr. ,  Richard Thomas Giovannoni

    IPC分类号： D21H13/40 ,  D04H13/00 ,  E04C2/04 ,  E04C2/16 ,  E04F13/08 ,  D04H1/4209 ,  D04H1/4382 ,  D04H1/58

    摘要： Embodiments of the invention provide fiber mat facers, ceiling panels, and method of manufacturing the same. A fiber mat facer may include a non-woven web of fibers having a first group of fibers with an average fiber diameter from about 6 μm to about 20 μm and a second group of fibers with an average fiber diameter from about 0.5 μm to about 5 μm. The fiber mat facer may also include a binder to bond together the non-woven web of fibers into the fiber mat. The binder may include a water repellant additive. The binder and/or fiber mat facer may further include an additive that enhances the opacity of the fiber mat facer. The fiber mat facer may also include a paint applied to an outer surface of the facer. The paint may include an additive that enhances the visual appeal of the facer and/or ceiling panel.

    Man-made vitreous fibres
    7.
    发明授权
    Man-made vitreous fibres 有权

    公开(公告)号：US10370285B2

    公开(公告)日：2019-08-06

    申请号：US15022972

    申请日：2014-10-16

    申请人： Rockwool International A/S

    发明人： Lars Erik Hansen ,  Mette Solvang ,  Susanne Dehn

    IPC分类号： C03B37/05 ,  C03C13/00 ,  C03C3/062 ,  C03C3/085 ,  C03C13/06 ,  C09K21/02 ,  D21H13/40

    摘要： The invention provides a method of manufacture of man-made vitreous fibers (MMVF) comprising: providing a fiberizing apparatus, wherein the fiberizing apparatus comprises: a set of at least three rotors each mounted for rotation about a different substantially horizontal axis; wherein each rotor has a driving means; rotating the rotors; wherein the first rotor rotates to give an acceleration field of from 25 to 60 km/s2 and the second and third rotors each rotate to give an acceleration field of at least 125 km/s2, providing a mineral melt, wherein the melt has a composition comprising the following, expressed by wt of oxides: SiO2 in an amount of from 33 to 45 wt %, Al2O3 in an amount of from 16 to 24 wt %, an amount of K2O and/or Na2O, an amount of CaO and/or MgO, wherein the ratio of the amount of Al2O3 to the amount of SiO2 is in the range 0.34-0.73, wherein the ratio of the total amount of K2O and Na2O, to the total amount of CaO and MgO, is less than 1; pouring the melt on to the periphery of the first rotor; wherein melt poured on to the periphery of the first rotor in the set is thrown on to the periphery of the subsequent rotors in turn and fibers are thrown off the rotors; and collecting the fibers that are formed. Man-made vitreous fibers (MMVF) can thus be formed having a median length of 100 to 300 μm, a median diameter of not more than 2.5 μm, and wherein the ratio of the median fiber length to median fiber diameter is 25 to 500.

    Fibrous media
    8.
    发明授权
    Fibrous media 有权

    公开(公告)号：US10316468B2

    公开(公告)日：2019-06-11

    申请号：US15886594

    申请日：2018-02-01

    申请人： Donaldson Company, Inc.

    发明人： Hemant Gupta

    IPC分类号： B01D24/00 ,  D21H13/40 ,  D04H1/42 ,  D04H1/4218 ,  D04H1/435 ,  D04H1/4382 ,  D21H13/00

    摘要： A multi-faceted family of non-woven webs that can take the form of a filter media, an adaptable forming process and a machine capable of making the range of media are disclosed. The filter medium can have a first surface and a second surface defining a thickness. The medium can comprise a region having a gradient. Such a gradient is formed by having a medium wherein the concentration of a fiber, a property or other component varies from one surface to the next surface. The gradient region of the media can comprise the entire thickness of the medium or can comprise a region that comprises a portion of the media thickness. The media are characterized by the presence of a continuous change of the fiber concentration or property within the region.