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    HYDROLYSIS RESISTANT POLYAMIDES
    1.
    发明申请
    HYDROLYSIS RESISTANT POLYAMIDES 审中-公开

    公开(公告)号：WO2020167936A1

    公开(公告)日：2020-08-20

    申请号：PCT/US2020/017912

    申请日：2020-02-12

    Applicant: ASCEND PERFORMANCE MATERIALS OPERATIONS LLC

    Inventor： SPARKS, Bradley J. ,  HENSARLING, Ryan M.

    IPC: C08K7/14 ,  C08L77/06 ,  C08K3/04 ,  C08K5/3442

    Abstract: A hydrolysis resistant polyamide composition comprising from 50 wt% to 80 wt% polyamide polymer having a theoretical amine end group content of at least 55 µeq/gram; and from 25 wt% to 60 wt% glass fibers. The weight ratio of polyamide polymer to glass fibers ranges from 0.5:1 to 4.0:1. The polyamide composition comprises less than 0.06 wt% copper; and/or from 1 ppb to 0.24 wt% non-copper metal halide compound. The polyamide composition, when hydrolysis aged for 500 hours at 130°C, demonstrates an impact resilience greater than 40 kJ/m2, as measured at 23C.

    POLYAMIDES HAVING HIGH LEVELS OF AMINE END GROUPS
    2.
    发明申请
    POLYAMIDES HAVING HIGH LEVELS OF AMINE END GROUPS 审中-公开

    公开(公告)号：WO2020163571A1

    公开(公告)日：2020-08-13

    申请号：PCT/US2020/016965

    申请日：2020-02-06

    Applicant: ASCEND PERFORMANCE MATERIALS OPERATIONS LLC

    Inventor： SPARKS, Bradley J. ,  HENSARLING, Ryan M.

    IPC: C08L77/06

    Abstract: A heat-stabilized polyamide composition comprising from 25 wt% to 99 wt% of an amide polymer having an amine end group level greater than 50 µeq/gram; a first stabilizer comprising a lanthanoid-based compound; a second stabilizer; and from 0 wt% to 65 wt% filler; wherein, when heat aged for 3000 hours over a temperature range of from 190ºC to 220ºC, the polyamide composition demonstrates a tensile strength retention of greater than 51%, as measured at 23ºC.

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