POLYARYLENE SULFIDE COMPOSITION AND METHOD FOR PRODUCING SAME

    公开(公告)号:US20240400826A1

    公开(公告)日:2024-12-05

    申请号:US18699487

    申请日:2022-10-14

    Abstract: There are provided a polyarylene sulfide composition that contains a post-consumer recycled polyamide and a fibrous filler without compromising the intrinsic heat resistance, chemical resistance, flowability and other characteristics of a polyarylene sulfide and a method for producing it. The polyarylene sulfide composition comprises a polyarylene sulfide (A) having a melt viscosity of 100 to 3000 poises as measured under the conditions of a measuring temperature of 315° C. and a load of 10 kg using a capillary rheometer flow tester fitted with a 1-mm diameter and 2-mm long die, 10 to 90 parts by weight of a post-consumer recycled polyamide (B) per 100 parts by weight of the polyarylene sulfide (A) and 20 to 110 parts by weight of a fibrous filler (C) per a total of 100 parts by weight of the polyarylene sulfide (A) and the post-consumer recycled polyamide (B).

    LIQUID CRYSTAL POLYESTER (LCP), LCP COMPOSITION, AND USE THEREOF

    公开(公告)号:US20230391950A1

    公开(公告)日:2023-12-07

    申请号:US18234901

    申请日:2023-08-17

    Abstract: The present disclosure discloses a liquid crystal polyester (LCP), an LCP composition, and use thereof. The LCP includes a repeating unit of formula (1), a repeating unit of formula (2), and a repeating unit of formula (3): (1) —O—Ar1—CO—, (2) —CO—Ar2—CO—, and (3) —O—Ar3—O—, where Ar1 is at least one selected from the group consisting of 2,6-naphthylene, 1,4-phenylene, and 4,4′-biphenylene; Ar2 is selected from the group consisting of 1,4-phenylene, 1,3-phenylene, and 4,4′-biphenylene; and Ar3 is selected from the group consisting of 2,6-naphthylene, 1,4-phenylene, 1,3-phenylene, and 4,4′-biphenylene; and the LCP has a melting enthalpy of over 1.5 J/g. The LCP and the composition including the LCP of the present disclosure have a high heat deflection temperature (HDT), and exhibit excellent heat resistance and anti-bubbling performance.

Patent Agency Ranking