Method of forming transmissive, porous metal oxide optical layer of a
vitreous substrate
    31.
    发明授权
    Method of forming transmissive, porous metal oxide optical layer of a vitreous substrate 失效
    形成透明多孔金属氧化物光学层的玻璃质基底的方法

    公开(公告)号:US4271210A

    公开(公告)日:1981-06-02

    申请号:US116329

    申请日:1980-01-28

    申请人: Bulent E. Yoldas

    发明人: Bulent E. Yoldas

    摘要: A method of forming an optically clear, thin metal oxide, porous layer on a vitreous glass substrate, with this metal oxide layer having a low index of refraction. A clear colloidal solution is prepared using metal alkoxide and the substrate is dipped in this solution. The concentration of metal oxide equivalent in the solution, and the rate of withdrawal of the glass substrate from the solution are controlled to form the porous metal oxide layer on the substrate with the layer being about a quarter-wavelength optically thick. This low index of refraction metal oxide layer forms an effective antireflective layer on a vitreous substrate of higher index of refraction, and minimize reflection from the substratemetal oxide layer interface.

    摘要翻译: 在玻璃玻璃基板上形成光学透明,薄的金属氧化物多孔层的方法,该金属氧化物层具有低的折射率。 使用金属醇盐制备透明胶体溶液,并将基材浸入该溶液中。 控制溶液中金属氧化物当量的浓度以及从溶液中取出玻璃基质的速率,以在基底上形成多孔金属氧化物层,该层的光学厚度约为四分之一波长。 这种低折射率金属氧化物层在较高折射率的玻璃质基底上形成有效的抗反射层,并使来自基底金属氧化物层界面的反射最小化。

    Transparent activated nonparticulate alumina and method of preparing same
    32.
    发明授权
    Transparent activated nonparticulate alumina and method of preparing same 失效
    透明活性非微粒氧化铝及其制备方法

    公开(公告)号:US3944658A

    公开(公告)日:1976-03-16

    申请号:US396754

    申请日:1973-09-13

    申请人: Bulent E. Yoldas

    发明人: Bulent E. Yoldas

    摘要: A transparent, activated, nonparticulate alumina with a total porosity of about 63% which consists of a unique pore morphology and size distribution and is thermally stable up to about 1,200.degree.C. at which temperature it can be nondestructively converted to alpha alumina is disclosed as well as a method of preparing said alumina by hydrolyzing aluminum alkoxides to form a particular sol which is essentially clear to the naked eye and the gel of which retains its integrity during drying and pyrolysis. The alumina thus produced is useful as a catalyst, absorbent and desiccant. In addition, a method of preparing the intermediate clear colloidal sol or gel consisting essentially of aluminum monohydrate is disclosed. This intermediate can be used to coat various substrates.

    摘要翻译: 透明的,活化的,非颗粒状氧化铝,总孔隙率约63%,其由独特的孔形态和尺寸分布组成,并且在约1200℃下是热稳定的,在该温度下可将其非破坏性地转化为α-氧化铝,其公开为 以及通过水解醇铝来形成特定的溶胶的方法,所述溶胶基本上是肉眼清澈的,其凝胶在干燥和热解过程中保持其完整性。 由此生产的氧化铝可用作催化剂,吸收剂和干燥剂。 此外,公开了一种制备基本上由一水合铝组成的中间体透明胶体溶胶或凝胶的方法。 该中间体可用于涂覆各种基材。

    Transparent activated nonparticulate alumina and method of preparing same
    33.
    发明授权
    Transparent activated nonparticulate alumina and method of preparing same 失效
    透明活性非微粒氧化铝及其制备方法

    公开(公告)号:US3941719A

    公开(公告)日:1976-03-02

    申请号:US395953

    申请日:1973-09-10

    申请人: Bulent E. Yoldas

    发明人: Bulent E. Yoldas

    摘要: A transparent, activated, nonparticulate alumina with a total porosity of about 63% which consists of a unique pore morphology and size distribution and is thermally stable up to about 1200.degree.C. at which temperature it can be nondestructively converted to alpha alumina is disclosed as well as a method of preparing said alumina by hydrolyzing aluminum alkoxides to form a particular sol which is essentially clear to the naked eye and the gel of which retains its integrity during drying and pyrolysis. The alumina thus produced is useful as a catalyst, absorbent and desiccant. In addition, a method of preparing the intermediate clear colloidal sol or gel consisting essentially of aluminum monohydrate is disclosed. This intermediate can be used to coat various substrates.

    摘要翻译: 透明的,活化的,非颗粒状的氧化铝,总孔隙率约63%,其由独特的孔形态和尺寸分布组成,并且在高达约1200℃下是热稳定的,在该温度下可将其非破坏性地转化为α-氧化铝被公开为 以及通过水解醇铝来形成特定的溶胶的方法,所述溶胶基本上是肉眼清澈的,其凝胶在干燥和热解过程中保持其完整性。 由此生产的氧化铝可用作催化剂,吸收剂和干燥剂。 此外,公开了一种制备基本上由一水合铝组成的中间体透明胶体溶胶或凝胶的方法。 该中间体可用于涂覆各种基材。