HEAT RESISTANT AROMATIC POLYCARBONATE - POLYESTER COMPOSITION

    公开(公告)号:US20230097414A1

    公开(公告)日:2023-03-30

    申请号:US17797781

    申请日:2021-03-19

    Abstract: The present invention relates to a composition comprising from 25-75 wt. % of aromatic polycarbonate comprising melt polycarbonate and from 75-25 wt. % of polyester based on the combined weight of the aromatic polycarbonate and the polyester, wherein said aromatic polycarbonate has an endcap level of at most 75 mol % and said polyester comprises polybutylene terephthalate, and wherein i) said polyester comprises a polymer miscible with poly(butylene terephthalate), said polymer having a glass transition temperature higher than the glass transition temperature of said poly(butylene terephthalate) and/or, ii) said aromatic polycarbonate comprises a polymer miscible with said melt polycarbonate, said polymer having a glass transition temperature higher than the glass transition temperature of said melt polycarbonate.

    THERMOPLASTIC COMPOSITION
    10.
    发明申请

    公开(公告)号:US20240368400A1

    公开(公告)日:2024-11-07

    申请号:US18285687

    申请日:2022-04-04

    Abstract: The present invention relates to a thermoplastic composition comprising, based on the weight of the composition, (A) from 50-65 wt. % of aromatic polycarbonate, (B) from 20-40 wt. % of polyester comprising or consisting of poly(butylene terephthalate), (C) from 1-10 wt. % of impact modifier, (D) from 5-15 wt. % of glass fibres, (E) from 0-5 wt. % of further components, wherein the sum of the components (A)-(E) is 100 wt. % and wherein the composition has a notched Izod impact strength determined in accordance with ISO 180-1A at a temperature of 23° C. of at least 10 kJ/m2, a tensile modulus determined in accordance with ISO 527 at a temperature of 23° C. of at least 4.0 GPa, a tensile strength determined in accordance with ISO 527 at a temperature of 23° C. of at least 75 MPa and a melt volume rate determined in accordance with ISO 1133 (2505° C., 5 kg) of at least 7.0 cc/10 min.

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