POLYCARBONATE COMPOSITIONS FOR MEDICAL DEVICES

    公开(公告)号:US20210054195A1

    公开(公告)日:2021-02-25

    申请号:US17010119

    申请日:2020-09-02

    Abstract: A thermoplastic composition including a copolycarbonate comprising bisphenol A carbonate units and second carbonate units of the formula wherein Ra and Rb are each independently a C1-12 alkyl, C1-12 alkenyl, C3-8 cycloalkyl, or C1-12 alkoxy, each R3 is independently a C1-6 alkyl, R4 is hydrogen, C2-6 alkyl or phenyl optionally substituted with 1 to 5 C1-6 alkyl groups, p, q, and j are each independently 0 to 4, optionally a bisphenol A homopolycarbonate; and an acid stabilizer comprising a sulfonic acid ester; wherein the composition has an improved volatile or non-volatile organic compound content and yellowness index value when compared to a reference sample of an otherwise identical composition except for not containing the stabilizer.

    HIGH HEAT POLYCARBONATE COMPOSITIONS
    2.
    发明申请
    HIGH HEAT POLYCARBONATE COMPOSITIONS 审中-公开
    高聚碳酸酯组合物

    公开(公告)号:US20170022360A1

    公开(公告)日:2017-01-26

    申请号:US15302500

    申请日:2015-04-15

    CPC classification number: C08L69/00 C08L2201/08 C08L2205/025

    Abstract: Metallized articles comprising polycarbonate compositions are disclosed. The compositions include at least one first polycarbonate useful for high heat applications; and a second Bisphenol A polycarbonate. The compositions can include one or more additives. The compositions can be used to prepare articles of manufacture, and in particular, automotive bezel.

    Abstract translation: 公开了包含聚碳酸酯组合物的金属化制品。 组合物包括至少一种可用于高热应用的第一聚碳酸酯; 和第二双酚A聚碳酸酯。 组合物可以包括一种或多种添加剂。 组合物可用于制备制品,特别是汽车挡板。

    METHOD FOR PLASMA COATING ON THERMOPLASTIC
    8.
    发明申请

    公开(公告)号:US20200030847A1

    公开(公告)日:2020-01-30

    申请号:US16337672

    申请日:2017-09-29

    Abstract: A composite material, and methods of making thereof, include a polycarbonate substrate and plasma-enhanced chemical vapor deposition formed layers. In particular, a film formed by a process of plasma-enhanced chemical vapor deposition includes: applying a radio frequency bias to a substrate; and supplying a process gas through an antennae, where microwave power applied to the antennae generates plasma of the process gas at the surface of the substrate thereby forming one or more layers on the substrate. In certain aspects the film exhibits one or more (or all) of favorable oxygen transmission rate, barrier improvement factor, optical transmission, surface roughness, chemical resistance and surface roughness properties.

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