Blends of polysulfone with diaryl fluorene carbonate polymer
    1.
    发明授权
    Blends of polysulfone with diaryl fluorene carbonate polymer 失效
    聚砜与二芳基芴碳酸酯聚合物的共混物

    公开(公告)号:US5633331A

    公开(公告)日:1997-05-27

    申请号:US641984

    申请日:1996-05-02

    IPC分类号: C08L69/00 C08L81/06

    CPC分类号: C08L69/00 C08L81/06

    摘要: Polymer blend compositions are prepared having excellent combinations of optical properties, physical properties and hydrolytic stability comprising, in admixture, (a) a diaryl fluorene carbonate polymer and (b) a polysulfone. Preferably, the diaryl carbonate polymer is a copolycarbonate of bisphenol A with bis(hydroxyphenyl) fluorene, preferably 9,9-bis(4-hydroxyphenyl) fluorene. Optionally, the blend compositions also comprise a second non-fluorene carbonate polymer (c). Preferably, the polysulfone is a bisphenol A polysulfone or a polyether poly sulfone. In preferred aspects of this invention, the polysulfone and diaryl carbonate polymer components are selected to provide a transparent blend composition.

    摘要翻译: 制备具有优异的光学性质,物理性质和水解稳定性组合的聚合物共混组合物,其包含(a)二芳基芴碳酸酯聚合物和(b)聚砜。 优选地,碳酸二芳酯聚合物是双酚A与双(羟基苯基)芴的共聚碳酸酯,优选9,9-双(4-羟基苯基)芴。 任选地,共混组合物还包含第二非芴碳酸酯聚合物(c)。 优选地,聚砜是双酚A聚砜或聚醚聚砜。 在本发明的优选方面,选择聚砜和碳酸二芳酯聚合物组分以提供透明的共混组合物。

    Low molecular weight engineering thermoplastic polyurethane and blends thereof
    4.
    发明授权
    Low molecular weight engineering thermoplastic polyurethane and blends thereof 有权
    低分子量工程热塑性聚氨酯及其混合物

    公开(公告)号:US06696528B2

    公开(公告)日:2004-02-24

    申请号:US09925070

    申请日:2001-08-07

    IPC分类号: C08L710

    摘要: A low molecular weight engineering thermoplastic polyurethane (ETPU) can be homogeneously melt blended with a polyarylene ether (PAE) to give a low viscosity melt processable blend, and subsequently cooled to form a heterogeneous dispersion of the ETPU in the PAE that has two Tgs, one that is close to the Tg of the pure ETPU, and one that is close to the Tg of the pure PAE. As such, the composite blend retains the properties of the polyarylene ether.

    摘要翻译: 可以将低分子量工程热塑性聚氨酯(ETPU)与聚芳醚(PAE)均匀熔融共混,得到低粘度可熔融加工的共混物,随后冷却以形成具有两个Tg的PAE中的ETPU的非均相分散体, 一个接近纯ETPU的Tg,一个接近纯PAE的Tg。 因此,复合共混物保留聚亚芳基醚的性质。