Copolycarbonate compositions, and related articles and processes
    4.
    发明授权
    Copolycarbonate compositions, and related articles and processes 失效
    共聚碳酸酯组合物,以及相关的制品和方法

    公开(公告)号:US06706847B2

    公开(公告)日:2004-03-16

    申请号:US10104629

    申请日:2002-03-22

    IPC分类号: C08G6400

    摘要: A thermoplastic composition is described, based on a copolycarbonate which includes at least two structural units. Structure I is usually a conventional carbonate based on bisphenol A, while structure II is a bisphenol carbonate which includes branched or linear groups extending from a bridging carbon atom or carbon group which connects two aromatic rings. The compositions exhibit very good melt flow, along with enhanced shear-thinning behavior. These characteristics are important for optical disc applications. Thus, related articles are described, along with processes for preparing such articles.

    摘要翻译: 基于包含至少两个结构单元的共聚碳酸酯描述热塑性组合物。 结构I通常是基于双酚A的常规碳酸酯,而结构II是双酚碳酸酯,其包括从连接两个芳环的桥连碳原子或碳基延伸的支链或直链基团。 组合物显示非常好的熔体流动,以及增强的剪切稀化行为。 这些特性对于光盘应用很重要。 因此,描述了相关的文章以及制备这些物品的过程。

    Polyestercarbonates and methods of manufacture
    6.
    发明授权
    Polyestercarbonates and methods of manufacture 失效
    聚碳酸酯和制造方法

    公开(公告)号:US06689862B2

    公开(公告)日:2004-02-10

    申请号:US10064346

    申请日:2002-07-03

    IPC分类号: C08G6400

    CPC分类号: C08G63/64

    摘要: Polyestercarbonates are disclosed which comprise structural units derived from at least one bisphenol derived from terpene precursors, at least one aromatic dihydroxy compound comonomer, at least one diester derived from a C1-C40 linear or branched divalent hydrocarbyl radical, and at least one carbonic acid diester. Also disclosed are methods to make the polyestercarbonates and articles derived therefrom.

    摘要翻译: 公开了聚酯碳酸酯,其包含衍生自至少一种衍生自萜烯前体的双酚的结构单元,至少一种芳族二羟基化合物共聚单体,至少一种衍生自C 1 -C 40直链或支链二价烃基的二酯和至少一个碳酸二酯 。 还公开了制备聚酯碳酸酯和由其衍生的制品的方法。

    Dimensionally stable polycarbonate articles
    9.
    发明授权
    Dimensionally stable polycarbonate articles 失效
    尺寸稳定的聚碳酸酯制品

    公开(公告)号:US06552158B1

    公开(公告)日:2003-04-22

    申请号:US10064348

    申请日:2002-07-03

    IPC分类号: C08G6400

    CPC分类号: G11B7/2534 C08G64/06

    摘要: The disclosure relates to articles using polycarbonates produced by a melt transesterification polymerization method using bis(hydroxyaryl)cyclohexanes. Such polycarbonates have suitable glass transition temperatures and outstanding dimensional stabilities, thus making them particularly useful for making articles possessing high temperature stability, particularly for use in optical articles such as high density optical data storage and recordable media.

    摘要翻译: 本公开涉及使用通过使用双(羟基芳基)环己烷的熔融酯交换聚合方法制备的聚碳酸酯的制品。 这种聚碳酸酯具有合适的玻璃化转变温度和优异的尺寸稳定性,因此使其特别适用于具有高温稳定性的制品,特别适用于光学制品如高密度光学数据存储和可记录介质。