POLYCARBONATE DIOL, URETHANE RESIN, AND COATING AGENT

    公开(公告)号:EP4417635A1

    公开(公告)日:2024-08-21

    申请号:EP24157246.0

    申请日:2024-02-13

    申请人: Tosoh Corporation

    发明人: HONDA, Kohei

    摘要: A polycarbonate diol having a repeating unit (A) of a carbonate structure, and containing terminal hydroxyl groups, wherein
    90 to 100 mol% of the repeating unit (A) is a repeating unit (B) of a 3-methylpentan-1,5-diyl group-containing carbonate structure and/or a repeating unit (C) of a 1,6-hexanediyl group-containing carbonate structure,
    the polycarbonate diol contains a polycarbonate diol (D) represented by the following formula (D),
    a number average molecular weight calculated from a hydroxyl value of the polycarbonate diol is 300 to 2800 g/mol, and
    in an LC spectrum measured for the polycarbonate diol, when X0 represents the number of repeating units of the polycarbonate diol (D) corresponding to a peak of molecular weight closest to the above number average molecular weight, the number of consecutive peaks at each of which a peak area value ratio to an area value of the peak at which the number of repeating units is X0 is 0.90 to 1.10 is 2 to 7, including the peak at which the number of repeating units is X0,

    wherein R1 represents - (CH2)6- or -CH2CH2CH(CH3)CH2CH2-.

    POLYCARBONATE RESIN COMPOSITION, PREPARATION METHOD THEREFOR, AND MOLDED ARTICLE COMPRISING SAME

    公开(公告)号:EP4382570A1

    公开(公告)日:2024-06-12

    申请号:EP23855069.3

    申请日:2023-07-27

    申请人: LG Chem, Ltd.

    摘要: The present invention relates to a polycarbonate resin composition, a method of preparing the same, and a molded article including the same. More particularly, the present invention relates to a polycarbonate resin composition including 20 to 75 % by weight of a polycarbonate (A-1) having a melt index (300 °C, 1.2 kg) of 15 to 25 g/10 min; 5 to 25 % by weight of a polysiloxane-polycarbonate copolymer (B); 5 to 45 % by weight of glass fiber (C); 2 to 12 % by weight of a liquid phosphorus-based flame retardant (D); and 1 to 7 % by weight of a phosphazene compound (E), a method of preparing the polycarbonate resin composition, and a molded article including the polycarbonate resin composition.
    According to the present invention, the present invention has an effect of a polycarbonate resin composition having a high recycling rate by including a high content of a post-consumer recycled polycarbonate and having excellent impact resistance, heat resistance, and flame retardancy, a method of preparing the polycarbonate resin composition, and a molded article including the polycarbonate resin composition.