High density polyester composition
    1.
    发明授权
    High density polyester composition 失效
    高密度聚酯组合物

    公开(公告)号:US06020432A

    公开(公告)日:2000-02-01

    申请号:US110008

    申请日:1998-07-02

    摘要: A highly filled, ceramic-like thermoplastic polyester resin molding composition, characterized as containing a polyethylene terephthalate base resin, an impact modifier system containing a copolymer and terpolymer, glass fibers, and a mineral filler. Shaped articles prepared from the molding composition exhibit a ceramic appearance and feel, glossy surface finish, improved impact strength, and high specific gravity.

    摘要翻译: 高密度陶瓷状热塑性聚酯树脂模塑组合物,其特征在于含有聚对苯二甲酸乙二醇酯基树脂,含有共聚物和三元共聚物的抗冲改性剂体系,玻璃纤维和矿物填料。 由成型组合物制成的成形制品具有陶瓷外观和手感,光泽的表面光洁度,改善的冲击强度和高的比重。

    Accelerated preparation of carboxylic acid esters
    4.
    发明授权
    Accelerated preparation of carboxylic acid esters 失效
    加速制备羧酸酯

    公开(公告)号:US4868329A

    公开(公告)日:1989-09-19

    申请号:US168565

    申请日:1988-03-07

    IPC分类号: C07C67/08 C07C69/54

    CPC分类号: C07C67/08

    摘要: The instant invention involves a process for preparing carboxylic acid esters which comprises coreacting a carboxylic acid and an aliphatic mono or polyol by maintaining one of the reactants in a reactor at elevated temperatures and adding the other reactant to the reactor over a period of time. By employing this process esterification times are significantly reduced.

    摘要翻译: 本发明涉及一种制备羧酸酯的方法,该方法包括通过将反应物中的一种在升高的温度下保持在反应器中并在一段时间内将其它反应物加入到反应器中来使羧酸和脂族单或多元醇结合起来。 通过使用该方法,酯化时间显着降低。

    Accelerated preparation of esters
    5.
    发明授权
    Accelerated preparation of esters 失效
    加速酯的制备

    公开(公告)号:US4859792A

    公开(公告)日:1989-08-22

    申请号:US168564

    申请日:1988-03-07

    IPC分类号: C07C67/08 C07C69/54

    CPC分类号: C07C69/54 C07C67/08

    摘要: The instant invention involves a process for preparing acrylic acid esters which comprises coreacting an acrylic acid and an aliphatic mono or polyol by maintaining one of the reactants in a reactor at elevated temperatures and adding the other reactant to the reactor over a period of time. By employing this process esterification times are reduced significantly.

    摘要翻译: 本发明涉及一种制备丙烯酸酯的方法,该方法包括通过在反应器中将一种反应物保持在升高的温度下并在一段时间内将另一种反应物加入到反应器中来共聚丙烯酸和脂族单或多元醇。 通过使用该方法,酯化时间显着降低。