POLYPHENYLENE ETHER COMPOSITION WITH EXCELLENT FLAMMABILITY AND DIELECTRIC PROPERTIES

    公开(公告)号:EP4293080A1

    公开(公告)日:2023-12-20

    申请号:EP22179479.5

    申请日:2022-06-16

    IPC分类号: C08L71/12

    摘要: Disclosed herein are compositions comprising: from about 35 wt. % to about 85 wt. % of a polyphenylene ether component; from about 1 wt. % to about 55 wt. % of a polystyrene component; and from about 5 wt. % to about 25 wt. % of a flame retardant agent comprising an aromatic phosphoric ester, wherein 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. The composition may exhibit at least a VI flame rating at 1.5 mm measured according to UL 94 (2021) and a dissipation factor less than 0.002 when tested using a split post dielectric resonator and network analyzer.

    THERMOPLASTIC COMPOSITIONS INCLUDING BLENDS OF POLYETHER ETHER KETONE AND POLYETHERIMIDE

    公开(公告)号:EP4265685A1

    公开(公告)日:2023-10-25

    申请号:EP22169023.3

    申请日:2022-04-20

    IPC分类号: C08L71/00 C08L71/10

    摘要: Thermoplastic compositions include: from about 50 wt% to about 70 wt% of a PEEK (polyether ether ketone) component; from about 5 wt% to about 20 wt% of a PEI (polyetherimide) component; and from about 20 wt% to about 40 wt% of a glass fiber 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. Methods for forming a molded article including the thermoplastic composition are described.