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    High glass transition temperature copolycarbonates, methods of manufacture, and uses thereof
    3.
    发明申请
    High glass transition temperature copolycarbonates, methods of manufacture, and uses thereof 有权
    高玻璃化转变温度共聚碳酸酯，其制造方法及其应用

    公开(公告)号：US20070123686A1

    公开(公告)日：2007-05-31

    申请号：US11289063

    申请日：2005-11-29

    申请人： James Mahood ,  Emine Gurel

    发明人： James Mahood ,  Emine Gurel

    IPC分类号： C08G64/00

    CPC分类号： C08G64/12 ,  C08J5/18 ,  C08J2369/00

    摘要： A copolycarbonate is discloses, comprising units of the formula (1) wherein 70 to 99.5 mole percent of the total number of R1 groups are derived from a dihydroxy compound of formula (2) wherein R2 and R3 are each independently a halogen or a C1-6 alkyl group, R4 is a methyl or a phenyl group, and c is independently 0 to 4; and 0.5 to 30 mole percent of the total number of R1 groups are derived from a dihydroxy compound of formula (3) HO—R5—OH  (3) wherein at least 60% of the R5 groups are aromatic, and the dihydroxy compound of formula (3) is not the same as the dihydroxy compound of formula (2), and wherein the copolycarbonate has a glass transition temperature of 250° C. or higher.

    摘要翻译： 公开了一种共聚碳酸酯，其包含式（1）的单元，其中R 1〜12的总数的70-99.5摩尔％衍生自式（2）的二羟基化合物，其中R 1， 2和R 3各自独立地为卤素或C 1-6烷基，R 4为甲基或 苯基，c独立地为0〜4; 并且R 1〜12个基团的总数的0.5〜30摩尔％来源于式（3）的二羟基化合物<？in-line-formula description =“In-line Formulas”end =“ 铅“→HO-R 5 -OH（3）<？in-line-formula description =”In-line Formulas“end =”tail“？>其中至少60％的R 式（3）的二羟基化合物与式（2）的二羟基化合物不同，其中共聚碳酸酯的玻璃化转变温度为250℃，或 更高。