Polyphenylene ether compositions having improved mechanical and heat properties

    公开(公告)号:US11958972B2

    公开(公告)日:2024-04-16

    申请号:US18195533

    申请日:2023-05-10

    发明人: Rui Mao Shijie Song

    IPC分类号: C08L71/12 C08K7/14

    摘要: A thermoplastic composition includes: (a) about 30 wt % to about 60 wt % of a resin component including polyphenylene ether (PPE) and polystyrene (PS); (b) from about 35 wt % to about 65 wt % of a filler component; (c) from about 1 wt % to about 5 wt % of a flow promoter including at least a partially hydrogenated hydrocarbon resin; and (d) an elastomer component including from 2.5 wt % to 5 wt % rubber content in the composition excluding the filler component. The combined weight percent value of all components does not exceed 100 wt %, and all weight percent values are based on the total weight of the composition except as indicated in (d).

    Flame retardant compositions
    9.
    发明授权

    公开(公告)号:US11124650B2

    公开(公告)日:2021-09-21

    申请号:US16980620

    申请日:2019-03-12

    摘要: In an embodiment, a composition comprises a poly(ester-carbonate-siloxane) copolymer; a nanosilica; a plurality of polysiloxane particles; and a fluoropolymer. The nanosilica can be present in an amount of 1 to 5 wt % based on a total weight of the composition. The nanosilica can have a D50 particle size by volume of 5 to 50 nanometers. The nanosilica can have a hydrophobic coating. The plurality of polysiloxane particles can be present in an amount of 1 to 10 wt % based on a total weight of the composition. The plurality of polysiloxane particles can have a D50 particle size by volume of 0.1 to 10 micrometers. The fluoropolymer can be present in an amount of 0.005 to 5 wt % based on a total weight of the composition.