Thermoplastic Compositions Including Blends of Polyether Ether Ketone and Polyetherimide

    公开(公告)号:US20250115759A1

    公开(公告)日:2025-04-10

    申请号:US18855439

    申请日:2023-04-11

    Abstract: 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.

    TRANSPARENT POLYCARBONATE COMPOSITIONS

    公开(公告)号:US20250163265A1

    公开(公告)日:2025-05-22

    申请号:US18842956

    申请日:2023-02-28

    Abstract: A polycarbonate composition comprises: a copolycarbonate comprising repeating units derived from a cyclohexylidene-bridged bisphenol; and an auxiliary polycarbonate comprising a branched homopolycarbonate; a poly(1,4-cyclohexanedimethylene terephthalate), a copolycarbonate derived from an isophorylidene-bridged bisphenol, and optionally a poly(alkylene cyclohexanedicarboxylate), poly(carbonate siloxane) having a siloxane content of less than 20 wt % based on the total weight of the poly(carbonatesiloxane), poly(aliphatic ester-carbonate) comprising bisphenol A carbonate units and C6-12 dicarboxy ester units; or a combination thereof. The polycarbonate compositions have one or more of a transparency of 89% or greater on 2.5 mm plaques according to ASTM-D1003-00; and a heat deformation temperature of at least 111° C., or at least 127° C. at 0.45 MPa or at least 98° C., or at least 110° C. at 1.82 MPa as determined on 3.18 mm bars per ASTM D648.

    Fiber-Reinforced Polyamide Having Improved Toughness for Low Temperature Applications

    公开(公告)号:US20240384068A1

    公开(公告)日:2024-11-21

    申请号:US18704490

    申请日:2022-10-26

    Abstract: Thermoplastic compositions include: at least one polyamide resin; at least about 30 wt % of a reinforcing fiber; and an impact modifier component including at least one impact modifier having a glass transition temperature (Tg) of about −30 degrees Celsius (° C.) or lower. The reinforcing fiber has a fiber length of at least about 10 millimeters (mm). The thermoplastic composition has a notched Izod impact strength of at least 300 Joules per meter (J/m) at −40° C. and a multi-axial impact energy of at least 15 J at −40° C. Methods of forming a pelletized thermoplastic composition, a plurality of thermoplastic pellets, and a composition including the plurality of thermoplastic pellets are also described.

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