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    Sol-gel process for the production of glassy articles
    1.
    发明授权
    Sol-gel process for the production of glassy articles 失效
    溶胶凝胶法生产玻璃制品

    公开(公告)号：US07181862B2

    公开(公告)日：2007-02-27

    申请号：US10542191

    申请日：2003-12-23

    申请人： Giulio Boara ,  Massimo Sparpaglione ,  Lorenzo Costa

    发明人： Giulio Boara ,  Massimo Sparpaglione ,  Lorenzo Costa

    IPC分类号： F26B3/02

    CPC分类号： C03C3/06 ,  C03B19/12 ,  C03C1/006 ,  C03C2203/26 ,  C03C2203/27 ,  C03C2203/34 ,  C03C2203/52

    摘要： Glassy articles are prepared by subjecting to hydrolysis and policondensation a solution or suspension of a suitable precursor, mainly comprising a silicon alkoxide, and by drying the obtained gel in a pressure chamber, the gel solvent having been substituted by a non-protic solvent, mainly acetone, under nitrogen flowing, at temperature and pressure conditions lower than the gel solvent critical values. The dried gel is then densified by a thermal treatment.

    摘要翻译： 玻璃制品通过对主要包含硅醇盐的合适前体的溶液或悬浮液进行水解和缩聚，并通过在压力室中干燥获得的凝胶来制备，凝胶溶剂已被非质子溶剂代替，主要 丙酮，在氮气流下，在低于凝胶溶剂临界值的温度和压力条件下。 然后将干燥的凝胶通过热处理致密化。

    Method for the Production of Shaped Silica Aquagels
    2.
    发明申请
    Method for the Production of Shaped Silica Aquagels 审中-公开
    异形二氧化硅水生产方法

    公开(公告)号：US20080302135A1

    公开(公告)日：2008-12-11

    申请号：US11667977

    申请日：2005-10-28

    申请人： Lorenzo Costa ,  Giulio Boara

    发明人： Lorenzo Costa ,  Giulio Boara

    IPC分类号： C03B8/00

    CPC分类号： C03B19/12 ,  C03C1/006 ,  C03C3/06 ,  C03C2203/22 ,  C03C2203/24

    摘要： It has been discovered that aquagels, formed from acid catalized composite sols, survive to conditions of high-tension when they are prepared by a process that hydrolyzes the silicon alkoxides in presence of fumed silica.The aquagel can be used for the production of monoliths of glass.

    摘要翻译： 已经发现，当通过在热解法二氧化硅存在下水解硅醇盐的方法制备时，由酸性催化的复合溶胶形成的水凝胶可以存在于高压条件下。 水凝胶可用于生产玻璃块。

    Sol-gel process for the production of glassy articles
    3.
    发明申请
    Sol-gel process for the production of glassy articles 失效
    溶胶凝胶法生产玻璃制品

    公开(公告)号：US20060059709A1

    公开(公告)日：2006-03-23

    申请号：US10542191

    申请日：2003-12-23

    申请人： Giulio Boara ,  Massimo Sparpaglione ,  Lorenzo Costa

    发明人： Giulio Boara ,  Massimo Sparpaglione ,  Lorenzo Costa

    IPC分类号： F26B5/04

    CPC分类号： C03C3/06 ,  C03B19/12 ,  C03C1/006 ,  C03C2203/26 ,  C03C2203/27 ,  C03C2203/34 ,  C03C2203/52

    摘要： Glassy articles are prepared by subjecting to hydrolysis and policondensation a solution or suspension of a suitable precursor, mainly comprising a silicon alkoxide, and by drying the obtained gel in a pressure chamber, the gel solvent having been substituted by a non-protic solvent, mainly acetone, under nitrogen flowing, at temperature and pressure conditions lower than the gel solvent critical values. The dried gel is then densified by a thermal treatment.

    摘要翻译： 玻璃制品通过对主要包含硅醇盐的合适前体的溶液或悬浮液进行水解和缩聚，并通过在压力室中干燥获得的凝胶来制备，凝胶溶剂已被非质子溶剂代替，主要 丙酮，在氮气流下，在低于凝胶溶剂临界值的温度和压力条件下。 然后将干燥的凝胶通过热处理致密化。

    Optical articles and sol-gel for their manufacture
    7.
    发明申请
    Optical articles and sol-gel for their manufacture 审中-公开
    光学制品和溶胶凝胶制造

    公开(公告)号：US20060181779A1

    公开(公告)日：2006-08-17

    申请号：US10550161

    申请日：2004-03-08

    申请人： Fulvio Costa ,  Lorenzo Costa ,  Lucia Gini

    发明人： Fulvio Costa ,  Lorenzo Costa ,  Lucia Gini

    IPC分类号： G02B3/00 ,  B32B17/06 ,  C01B33/12

    CPC分类号： C03B19/12 ,  Y10T428/24802

    摘要： An optical article, having an almost complete isotropy and dimensions equal to or lower than 500 μm, is prepared by a sol-gel procedure comprising a preliminary step wherein the mould is filled cold with a sol containing the desired oxide precursors, sol gelation, gel drying, removal of the gel from the mould and the subsequent miniaturization of the dried gel. The optical article can be used for optic telecommunications.

    摘要翻译： 具有几乎完全各向同性和尺寸等于或小于500μm的光学制品通过包括预备步骤的溶胶 - 凝胶法制备，其中模具用含有所需氧化物前体的溶胶，溶胶凝胶化，凝胶 干燥，从模具中除去凝胶，随后干燥凝胶的小型化。 光学制品可用于光通信。

    Manufactured articles in silicon oxide and/or other mixed metallic oxides and process for their preparation in “final” or “almost final” dimensions
    10.
    发明授权
    Manufactured articles in silicon oxide and/or other mixed metallic oxides and process for their preparation in “final” or “almost final” dimensions 失效
    在氧化硅和/或其他混合金属氧化物中制造制品，以及制备“最终”或“几乎最终”尺寸的方法

    公开(公告)号：US06567210B2

    公开(公告)日：2003-05-20

    申请号：US08533551

    申请日：1995-09-25

    申请人： Lorenzo Costa ,  Paolo Chiurlo

    发明人： Lorenzo Costa ,  Paolo Chiurlo

    IPC分类号： G02B508

    CPC分类号： C03B19/12 ,  C03B2201/31 ,  C03B2201/42

    摘要： An optical article, which is a preform for an optical lens, which is isotropic, consisting essentially of silicon oxide or silicon oxide in combination with one or more oxides of elements belonging to Groups III to VI of the Periodic Table, the article having a dimensional precision which has tolerance to surface roughness and profilometric accuracy required in the spectral interval of 200-800 nm of the electromagnetic spectrum, the tolerance being between one-half and one-tenth wavelength corresponding to the range of about 0.350-0.02 &mgr;m.

    摘要翻译： 一种光学制品，其是用于光学透镜的预成型体，其是各向同性的，主要由氧化硅或氧化硅组合，其与属于周期表第III至VI族的元素的一种或多种氧化物组合，所述制品具有尺寸 在电磁谱的200-800nm的光谱间隔中具有对表面粗糙度和轮廓测量精度的公差的精度，该公差在相当于约0.350-0.02μm的范围内的一半和十分之一波长之间。