ALUMINUM OXIDE PARTICLES
    17.
    发明申请
    ALUMINUM OXIDE PARTICLES 审中-公开
    氧化铝颗粒

    公开(公告)号:US20090255189A1

    公开(公告)日:2009-10-15

    申请号:US09136483

    申请日:1998-08-19

    IPC分类号: C09G1/02

    摘要: A collection of nanoparticles of aluminum oxide have been produced by laser pyrolysis have a very narrow distribution of particle diameters. Preferably, the distribution of particle diameters effectively does not have a tail such that almost no particles have a diameter greater than about 4 times the average diameter. The pyrolysis preferably is performed by generating a molecular stream containing an aluminum precursor, an oxidizing agent and an infrared absorber. The pyrolysis can be performed with an infrared laser such as a CO2 laser.

    摘要翻译: 已经通过激光热解产生氧化铝纳米颗粒的集合具有非常窄的粒径分布。 优选地,粒径的分布有效地不具有尾部,使得几乎没有颗粒的直径大于平均直径的大约4倍。 热分解优选通过产生含有铝前体,氧化剂和红外吸收剂的分子流来进行。 热解可以用诸如CO 2激光的红外激光进行。

    Silicon oxide particles
    19.
    发明授权
    Silicon oxide particles 失效
    氧化硅颗粒

    公开(公告)号:US06726990B1

    公开(公告)日:2004-04-27

    申请号:US09085514

    申请日:1998-05-27

    IPC分类号: C07C168

    摘要: A collection of silicon oxide nanoparticles have an average diameter from about 5 nm to about 100 nm. The collection of silicon oxide nanoparticles effectively include no particles with a diameter greater than about four times the average diameter. The particles generally have a spherical morphology. Methods for producing the nanoparticles involve laser pyrolysis. The silicon oxide nanoparticles are effective for the production of improved polishing compositions including compositions useful for chemical-mechanical polishing.

    摘要翻译: 氧化硅纳米颗粒的集合具有约5nm至约100nm的平均直径。 氧化硅纳米颗粒的收集有效地包括直径大于平均直径的四倍的颗粒。 颗粒通常具有球形形态。 制备纳米颗粒的方法包括激光热解。 氧化硅纳米颗粒对于生产改进的抛光组合物是有效的,包括用于化学机械抛光的组合物。