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    • 2. 发明申请
    • SILICA-BASED PARTICLE COMPOSITION
    • 基于硅石的颗粒组合物
    • WO2011008484A2
    • 2011-01-20
    • PCT/US2010/040132
    • 2010-06-28
    • NALCO COMPANYKEISER, Bruce, A.KEIZER, Timothy, S.ADAIR, James, H.
    • KEISER, Bruce, A.KEIZER, Timothy, S.ADAIR, James, H.
    • C01B33/141C09C1/28D21H21/10C09K11/02
    • C09K11/02C01P2002/84C01P2004/04C09B11/08C09B11/24C09B67/0007C09B67/0013C09B69/008C09B69/103C09C1/3063C09C1/3081C09C1/309C09K11/06Y10T428/2982
    • The present invention relates to a method for forming a silica-based particle or composite consisting of a silica-based material, an active, with or without a surface modification, and the related composition. The silica-based particle is illustrated by the formula (SiO 2 ) x (OH) y R z S t , whereby R is an active or actives such as an organic or inorganic molecule that includes markers, amines, thiols, epoxies, organosilicones, organosilanes, and water soluble agents and, optionally, a surface modifier, S, which may be either organic, polymeric, or inorganic. Examples of a surface modifying material are inorganic salts of aluminum and boron or organic materials such as organosilanes or low molecular weight polymers. As such, the particle can be used in a variety of applications including any of a variety of high temperature, at acidic, neutral, or basic pH, or pressure environments. The composites have applications as diverse as papermaking, water treatment, chemical tracing, personal care, microbiological control, and delivery of polymers, for example. With regard to papermaking, the particle provides retention and drainage performance while delivering whitener, or OBA, other functional additives and serves an additive tracker.
    • 本发明涉及一种形成二氧化硅基颗粒或复合物的方法,所述二氧化硅基颗粒或复合物由基于二氧化硅的材料,具有或不具有表面改性的活性物质以及相关组合物组成。 基于二氧化硅的颗粒由下式表示(SiO 2)x(OH)y R z S S 其中R是活性或活性物质,例如包括标记物,胺,硫醇,环氧化物,有机硅氧烷,有机硅烷和水溶性试剂的有机或无机分子,以及任选的表面改性剂S ,它可以是有机的,聚合物的或无机的。 表面改性材料的实例是铝和硼的无机盐或有机材料如有机硅烷或低分子量聚合物。 这样,颗粒可用于各种应用,包括在酸性,中性或碱性pH或压力环境下的各种高温中的任何一种。 例如,该复合材料具有多种应用,如造纸,水处理,化学追踪,个人护理,微生物控制和聚合物输送。 关于造纸,颗粒在提供增白剂或OBA,其他功能性添加剂并提供添加剂追踪剂时提供保留和排水性能。