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    • 49. 发明授权
    • Silane coated silicate minerals and method for preparing same
    • 硅烷涂层硅酸盐矿物及其制备方法
    • US4233366A
    • 1980-11-11
    • US954389
    • 1978-10-23
    • Thomas E. Sample, Jr.John M. Horn
    • Thomas E. Sample, Jr.John M. Horn
    • C03C25/40C04B14/40C04B20/10C04B41/49C04B41/50C04B41/53C08K9/06C09C1/28C09C1/40B32B5/16
    • C04B41/009C03C25/40C04B14/40C04B20/1051C04B41/4922C04B41/5089C04B41/5353C08K9/06C09C1/28C09C1/405C09C3/12C01P2002/72C01P2002/74C01P2004/80C01P2006/22C01P2006/80Y10S516/02Y10T428/2911Y10T428/2995Y10T428/31536Y10T428/31652
    • Phyllosilicate minerals which exhibit in their structure, sequentially, octahedral layers containing magnesium, aluminum and/or iron oxides and tetrahedral layers of silica, are superficially etched with dilute acid to remove the outer octahedral layer under controlled conditions which preserve the basic structural integrity of the mineral substrate. The acid etch exposes silanol groups on the outer silicate layer of the mineral so that they become available to form silicon-to-oxygen-to-silicon-to-carbon bonds through condensation with organo-silanes. The condensation of the organo-silane with the conditioned mineral surface is accomplished by mixing the acid etched silicate mineral with the organo-silane in a suitable solvent system under mild conditions.The organo-silane may be chosen from either of two classes: those which impart an oleophilic surface to the mineral; or those which enable the mineral surface to form additional chemical bonds with reactive sites within certain polymers and prepolymers. The mineral products of this invention which have been treated to possess oleophilic surfaces are superior additives for rheology control in lubricants, polyolefins, paints and oil well drilling fluids, as well as heat and moisture resistant reinforcing agents for rubbers; while those mineral products treated to possess surfaces chemically reactive with polymers and prepolymers when incorporated in such systems impart to the finished composites improved mechanical properties and heat and moisture resistance.
    • 在其结构中顺序地显示含有镁,铝和/或氧化铁的四面体层和二氧化硅四面体层的薄硅酸盐矿物用稀酸表面蚀刻以在受控条件下去除外部八面体层,其保持了基本结构完整性 矿物基质。 酸蚀刻在矿物的外硅酸盐层上暴露出硅烷醇基团,使得它们通过与有机硅烷缩合而形成硅与氧 - 硅 - 碳键。 有机硅烷与调理的矿物表面的缩合是通过在温和条件下将酸蚀刻的硅酸盐矿物与有机硅烷在合适的溶剂体系中混合来实现的。 有机硅烷可以选自以下两种之一:赋予矿物亲油性表面的那些; 或使矿物表面与某些聚合物和预聚物中的活性位点形成额外的化学键的那些。 已经被处理以具有亲油表面的本发明的矿物产品是润滑剂,聚烯烃,油漆和油井钻井液中的流变控制的优异添加剂,以及用于橡胶的耐热和防潮的增强剂; 当被纳入这种系统中时,被处理具有与聚合物和预聚物化学反应的表面的那些矿物产品赋予成品复合材料改善的机械性能和耐热和耐湿性。
    • 50. 发明授权
    • Process for preparing modified particulate and/or fibrous, crystalline
and amorphous inorganic substances
    • 制备改性颗粒和/或纤维,晶体和无定形无机物质的方法
    • US4141751A
    • 1979-02-27
    • US787090
    • 1977-04-13
    • James E. Moreland
    • James E. Moreland
    • C04B20/10C08K9/04C09C1/36C09C3/00C04B31/40
    • C09C1/3684C04B20/1051C08K9/04C09C3/006C01P2002/02C01P2004/10C01P2004/54C01P2004/62C01P2006/12C01P2006/90
    • A silane coupling agent of either ambi or monofunctional type, and/or an isopropyl titanate coupling agent of either ambi or monofunctional type; and/or, a glass resin thermoset silicone coupling agent of either ambi or monofunctional type which is refined siloxane chain/s with select OH groups in a carrier solution is and are sprayed or poured into hydrophilic particulate and/or fibrous, crystalline and/or amorphous inorganic substances or compounds in a high intensity mixing apparatus between about 70.degree. F. and 350.degree. F. and a silane coupling agent of either ambi or monofunctional; and/or an isopropyl titanate coupling agent of either ambi or monofunctional type; and/or, a glass resin thermoset silicone coupling agent of either ambi or monofunctional type which is refined siloxane chain/s with select OH groups in a carrier solution and hydrophilic particulate and/or fibrous, crystalline and/or amorphous inorganic substances are allowed to remain in situ at a temperature between 70.degree. F. and 350.degree. F. for at least about 1 minute.
    • 一种双环或单官能型硅烷偶联剂,和/或二元或单官能型异丙基钛酸酯偶联剂; 和/或在载体溶液中具有选择的OH基团的精制硅氧烷链的ambi或单官能型的玻璃树脂热固性硅氧烷偶联剂被喷射或倒入亲水性颗粒和/或纤维状结晶和/或 约70°F至350°F的高强度混合装置中的无定形无机物质或化合物,以及任意一种或单官能的硅烷偶联剂; 和/或二元或单官能型的异丙基钛酸酯偶联剂; 和/或在载体溶液中具有选择性OH基团的精制硅氧烷链或亲水性颗粒和/或纤维状结晶和/或无定形无机物质的环氧或单官能型的玻璃树脂热固性硅氧烷偶联剂被允许 在70°F至350°F的温度下保持原位至少约1分钟。