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    SILICONE RUBBER COMPOSITIONS COMPRISING BISMUTH OXIDE AND ARTICLES MADE THEREFROM
    6.
    发明申请
    SILICONE RUBBER COMPOSITIONS COMPRISING BISMUTH OXIDE AND ARTICLES MADE THEREFROM 失效
    含硅氧烷的硅橡胶组合物及其制品

    公开(公告)号：US20110112406A1

    公开(公告)日：2011-05-12

    申请号：US13006677

    申请日：2011-01-14

    申请人： Slawomir Rubinsztajn ,  Lowell Scott Smith ,  Charles Edward Baumgartner

    发明人： Slawomir Rubinsztajn ,  Lowell Scott Smith ,  Charles Edward Baumgartner

    IPC分类号： A61B8/00

    CPC分类号： G10K11/30 ,  C08G77/04 ,  C08L83/04

    摘要： The present invention provides novel filled silicone compositions comprising a nano-particulate metal oxide filler selected from nano-particulate monoclinic alpha-phase bismuth oxide, nano-particulate erbium oxide, and mixtures thereof. The new composite compositions exhibit a combination of outstanding performance characteristics in both the cured and uncured states. Thus, the uncured formulations are typically free flowing liquids which are self-leveling, which de-gas readily under vacuum, are readily colorable through the addition of pigments, and which cure at temperatures of about 60° C. The cured compositions possess outstanding acoustic characteristics which make them ideally suited for use in applications such as acoustic lenses for medical imaging and therapy. For example, the acoustic impedance of compositions provided by the present invention is closely matched to the acoustic impedance of human tissue. This may result in an enhancement of ultrasound transmission efficiency between the lens of an ultrasound probe comprising such a composition and the patient.

    摘要翻译： 本发明提供新型填充的硅氧烷组合物，其包含选自纳米颗粒单斜晶α-氧化铋，纳米颗粒铒氧化物及其混合物的纳米颗粒金属氧化物填料。 新的复合组合物在固化状态和未固化状态下显示出突出的性能特征的组合。 因此，未固化的制剂通常是自流平液体，其是自流平的，其在真空下容易地脱气，通过添加颜料容易着色，并且在约60℃的温度下固化。固化的组合物具有优异的声学 使其非常适合用于诸如用于医学成像和治疗的声学透镜的应用中。 例如，由本发明提供的组合物的声阻抗与人体组织的声阻抗紧密匹配。 这可能导致包括这种组合物的超声波探头的透镜与患者之间的超声传输效率的增强。

    Disproportionation of hydridosiloxanes and crosslinked polysiloxane network derived therefrom
    9.
    发明申请
    Disproportionation of hydridosiloxanes and crosslinked polysiloxane network derived therefrom 审中-公开
    歧化硅藻土和交联聚硅氧烷网络

    公开(公告)号：US20060211836A1

    公开(公告)日：2006-09-21

    申请号：US11081070

    申请日：2005-03-15

    申请人： Slawomir Rubinsztajn ,  James Cella ,  Patrick Malenfant

    发明人： Slawomir Rubinsztajn ,  James Cella ,  Patrick Malenfant

    IPC分类号： C08G77/20

    CPC分类号： C08G77/12 ,  C08G77/08 ,  C08G77/10 ,  C08K5/56

    摘要： Disclosed is a crosslinked polysiloxane network comprising both residual Si—H linkages and a Lewis acid catalyst, wherein the network is derived from a linear hydridosiloxane, a branched hydridosiloxane, a cyclic hydridosiloxane or a mixture of a linear hydridosiloxane or branched hydridosiloxane and a cyclic hydridosiloxane. Disclosed also is a method to produce the crosslinked polysiloxane network, alternatively accompanied by a silane with aliphatic, aromatic, or cycloaliphatic substituents by reacting in the presence of an effective amount of a Lewis acid catalyst a linear hydridosiloxane, a branched hydridosiloxane, a cyclic hydridosiloxane or a mixture of a linear hydridosiloxane or branched hydridosiloxane and a cyclic hydridosiloxane.

    摘要翻译： 公开了一种包含残留Si-H键和路易斯酸催化剂的交联聚硅氧烷网络，其中网络衍生自线性氢硅氧烷，支链氢硅氧烷，环状氢化硅氧烷或直链羟基硅氧烷或支链氢硅氧烷和环状硅氢化合物的混合物 。 还公开了一种制备交联聚硅氧烷网络的方法，或者伴随着具有脂族，芳族或脂环族取代基的硅烷，在有效量的路易斯酸催化剂的存在下，使用线性羟基硅氧烷，支链氢硅氧烷，环状氢化硅氧烷 或直链羟基硅氧烷或支链氢硅氧烷和环状氢化硅氧烷的混合物。