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    • 4. 发明授权
    • Surface treatment of inorganic fillers
    • 表面处理无机填料
    • US4454288A
    • 1984-06-12
    • US446297
    • 1982-12-02
    • Kenneth M. LeeKatherine L. Ulman
    • Kenneth M. LeeKatherine L. Ulman
    • C08K9/00A61L27/44C08G77/00C08G77/06C08G77/10C08G77/22C08K3/34C08K9/06C08K9/08C09C1/30C09C3/00C09C3/12C08L83/00
    • C09C3/12A61L27/446C08K9/08C09C1/3081C01P2006/12C01P2006/80C01P2006/90Y10T428/31663
    • This invention relates to a method of surface treating particulate inorganic fillers with a surface-treating agent which is an equilibrated reaction mixture consisting essentially of R.sub.2 SiO.sub.2/2 units, RSiO.sub.3/2 units and CH.sub.3 O.sub.1/2 radicals wherein the mixture contains A moles of R.sub.2 SiO.sub.2/2 units per mole of RSiO.sub.3/2 units and B moles of CH.sub.3 O.sub.1/2 radicals, A having an average value of from 0.5 to 10 and B having an average value of from 3 to 6, the value of B being related to A such that when A=0.5, B=6 and when A=10, B=3, and R being a hydrocarbon radical of from 1 to 10 inclusive carbon atoms or a haloalkyl radical of from 1 to 10 inclusive carbon atoms. Reinforcing silica fillers, surface-treated with such equilibrated reaction mixtures can be compounded with polydiorganosiloxanes curable to elastomers and cured to obtain silicone elastomers possessing high optical clarity and physical properties which make the cured elastomer uniquely suitable for use as prosthetic devices for use on or within the body.
    • 本发明涉及一种表面处理颗粒状无机填料的方法,该表面处理剂是基本上由R2SiO2 / 2单元,RSiO3 / 2单元和CH3O1 / 2基团组成的平衡反应混合物,其中该混合物含有A摩尔的R 2 SiO 2 / 2单位/摩尔RSiO3 / 2单元和B摩尔CH 3 O 1/2自由基,A平均值为0.5至10,B的平均值为3至6,B的值与A相关,使得 当A = 0.5,B = 6,当A = 10时,B = 3,R为含1-10个碳原子的烃基或含1-10个碳原子的卤代烷基。 用这种平衡的反应混合物进行表面处理的增强二氧化硅填料可以与可固化到弹性体的聚二有机硅氧烷混合并固化以获得具有高光学透明度和物理性质的硅氧烷弹性体,这使得固化的弹性体独特地适用于在或在内部使用的假体装置 身体。
    • 5. 发明授权
    • Silicone pressure sensitive adhesive composition containing
thermoplastic multi-segmented copolymer
    • 含有热塑性多段共聚物的硅氧烷压敏粘合剂组合物
    • US5756572A
    • 1998-05-26
    • US746960
    • 1996-11-18
    • Randall P. SweetKatherine L. Ulman
    • Randall P. SweetKatherine L. Ulman
    • C08G18/61C09J175/02C09J183/10A61F13/02
    • C09J175/02C08G18/61C09J183/10C08G2170/40
    • A pressure sensitive adhesive composition comprises a mixture of (A) a silicate resin, (B) a silicone fluid, and (C) a thermoplastic multi-segmented copolymer which is a product of the reaction between a diisocyanate and a reactive polyorganosiloxane having two groups reactive with isocyanate thereon. The thermoplastic multi-segmented copolymer comprises from about 1 to about 40 weight percent hard segments derived from reactants selected from the group consisting of organic diisocyanates, organic diols, and organic diamines and from about 60 to about 99 weight percent soft segments comprising from about 15 to about 99 weight percent, based on the weight of the thermoplastic multi-segmented copolymer, of polyorganosiloxane units and from about 0 to about 70 weight percent, based on the weight of the thermoplastic multi-segmented copolymer, of polyalkylene oxide units.
    • 压敏粘合剂组合物包含(A)硅酸酯树脂,(B)硅酮流体和(C)热塑性多链段共聚物的混合物,其是二异氰酸酯和具有两个基团的反应性聚有机硅氧烷之间的反应的产物 与其上的异氰酸酯反应。 热塑性多分段共聚物包含约1至约40重量%的衍生自选自有机二异氰酸酯,有机二醇和有机二胺的反应物的硬链段和约60至约99重量%的软链段,其包含约15 至约99重量%,基于热塑性多链段共聚物的重量,聚有机硅氧烷单元和约0至约70重量%,基于热塑性多链段共聚物的重量,聚环氧烷单元。