Apertured Nonwoven
    9.
    发明申请

    公开(公告)号:US20210324554A1

    公开(公告)日:2021-10-21

    申请号:US17231132

    申请日:2021-04-15

    Abstract: An apertured nonwovens having a first nonwoven layer is described. The first nonwoven layer includes cellulose-based fibers and a plurality of apertures, wherein the plurality apertures have a minimum aperture distance between two adjacent apertures which has a relative standard deviation no greater than about 40%, as measured according to the Aperture Quality Test. The apertures have an aperture size no greater than about 2.2 mm2 and have an occlusion no greater than about 9%, as measured according to the Aperture Quality Test, or the apertures have an aspect ratio no greater than about 2.5 as measured according to the Aspect Ratio Test.

    Continuous fiber brake rotor preform and apparatuses and methods for manufacturing same

    公开(公告)号:US11047443B2

    公开(公告)日:2021-06-29

    申请号:US15035715

    申请日:2014-11-12

    Applicant: BAM Inc.

    Inventor: Allen Simpson

    Abstract: A continuous fiber brake rotor preform and apparatuses and methods for manufacturing the preform are disclosed herein. The preform comprises a plurality of continuous fiber streams or filaments forming a substantially helical structure having layers or flights compressed together in the preform's longitudinal direction. Each continuous fiber stream or filament may comprise the same or different types of fiber, extends substantially between longitudinally disposed preform ends, and resides laterally adjacent to another continuous fiber stream or filament within each layer or flight of the helical structure. The radial distance between each continuous fiber stream or filament and the preform's longitudinal axis varies with angular location about the longitudinal axis. The preform further comprises web or z-direction fiber interspersed within the helical structure with certain of the web or z-direction fibers and continuous fiber streams or filaments extending at least partially in the longitudinal direction between the preform's layers or flights.

Patent Agency Ranking