Polycarbonate/poly(ethylene terephthalate) resin solutions
    6.
    发明授权
    Polycarbonate/poly(ethylene terephthalate) resin solutions 失效
    聚碳酸酯/聚对苯二甲酸乙二醇酯树脂溶液

    公开(公告)号:US4461877A

    公开(公告)日:1984-07-24

    申请号:US446875

    申请日:1982-12-06

    IPC分类号: C08L67/02 C08L69/00

    CPC分类号: C08L67/02 C08L69/00

    摘要: Thermoplastic compositions which are a solution of polycarbonate and poly(ethylene terephthalate) resins are described. These solutions are produced by melt admixture of a polycarbonate prepared from bis(3,5,dimethyl-4-hydroxy phenyl) sulfone and 2,2-bis(4-hydroxy-phenyl) propane and polyethylene terephthalate) to provide the composition with a single glass transition point.

    摘要翻译: 描述了作为聚碳酸酯和聚(对苯二甲酸乙二醇酯)树脂溶液的热塑性组合物。 这些溶液通过由双(3,5-二甲基-4-羟基苯基)砜和2,2-双(4-羟基 - 苯基)丙烷和聚对苯二甲酸乙二醇酯制备的聚碳酸酯的熔融混合物熔融混合而制备,以使组合物具有 单一玻璃化转变点。

    Crystalline polyester resins and process for their preparation
    8.
    发明授权
    Crystalline polyester resins and process for their preparation 有权
    结晶聚酯树脂及其制备方法

    公开(公告)号:US5986040A

    公开(公告)日:1999-11-16

    申请号:US146583

    申请日:1998-09-03

    CPC分类号: C08G63/199 C08G63/85

    摘要: A moldable linear polyester resin consisting essentially of a polyester having the formula: ##STR1## where R is an alkyl from 1 to 6 carbon atoms and n is greater than about 70, said polyester resin being derived from the transesterification reaction of a starting DMCD and a starting CHDM wherein the trans-cis ratio of repeating units derived from DMCD is preferably greater than about 8 to 1, and the trans-cis ratio of repeating units derived from DMCD is preferable greater than about 1 to 1, said polyester resin having crystalline properties with a preferable viscosity greater than 4500 poise and a melting temperature greater than 216 degrees Centigrade.

    摘要翻译: 一种可模制的线性聚酯树脂,其主要由具有下式的聚酯组成:其中R是1至6个碳原子的烷基,n大于约70,所述聚酯树脂衍生自起始DMCD和起始CHDM的酯交换反应 其中衍生自DMCD的重复单元的反式顺式比优选大于约8至1,并且衍生自DMCD的重复单元的反式顺式比优选大于约1至1,所述聚酯树脂具有结晶性质,其中具有 优选粘度大于4500泊,熔化温度大于216摄氏度。