Thermal insulation materials and methods thereof

    公开(公告)号:US11235552B2

    公开(公告)日:2022-02-01

    申请号:US17058258

    申请日:2018-07-23

    Abstract: Provided is a multilayer thermal insulator and related method that use a non-woven core layer comprising non-meltable and flame-resistant polymeric fibers. One or more scrims are disposed on the opposing major surfaces of the non-woven core layer, and a peripheral edge of the one or more scrims is either edge sealed or capable of being edge sealed to substantially encapsulate the non-woven core layer within the one or more scrims. Optionally, a binder is provided on the scrims or non-woven core layer to facilitate edge sealing. The provided insulators are essentially dust-free and capable of passing stringent flammability standards.

    NONWOVEN FIBROUS WEB
    6.
    发明申请

    公开(公告)号:US20220227100A1

    公开(公告)日:2022-07-21

    申请号:US17595597

    申请日:2020-06-09

    Abstract: A nonwoven fibrous web includes a flame retardant nonwoven fabric coated with a fire retardant, wherein the fire retardant comprises ammonium polyphosphate or alkali metal silicate; and wherein the flame retardant nonwoven fabric has a first major surface and an opposed second major surface; a first nonwoven fabric covering at least a portion of the first major surface; and a second nonwoven fabric covering at least a portion of the second major surface. The first and second nonwoven fabrics each comprise oxidized polyacrylonitrile fibers and optional reinforcing fibers.

Patent Agency Ranking