Methods for Making an Article Coated with a Photochromic Film and Use Thereof in Ophthalmological Optics
    3.
    发明申请
    Methods for Making an Article Coated with a Photochromic Film and Use Thereof in Ophthalmological Optics 审中-公开
    制造涂有光致变色膜的物品的方法及其在眼科学中的应用

    公开(公告)号:US20130108858A1

    公开(公告)日:2013-05-02

    申请号:US12278130

    申请日:2007-01-31

    摘要: The present invention relates to a method for making a substrate coated with a mesoporous photochromic film, comprising: a) preparing a precursor sol of a mesoporous film comprising an inorganic precursor agent, at least one organic solvent, water, at least one pore-forming agent and one hydrophobic precursor agent bearing at least one hydrophobic group; b) depositing a film of the precursor sol onto a main surface of a substrate; c) removing the pore-forming agent from the film resulting from the previous step at a temperature ≦150° C.; d) impregnating the mesoporous film resulting from step c) with a solution comprising at least one photochromic agent. In an alternative embodiment, the photochromic agent is directly introduced into the precursor sol. In an alternative embodiment of the previous alternative embodiment, the precursor sol does not comprise any hydrophobic precursor agent but the photochromic film is made hydrophobic by a treatment subsequent to its preparation.

    摘要翻译: 本发明涉及一种制备涂覆有介孔光致变色膜的基材的方法,包括:a)制备介孔膜的前体溶胶,所述介孔膜包含无机前体试剂,至少一种有机溶剂,水,至少一个成孔 剂和一种具有至少一个疏水基团的疏水性前体剂; b)将前体溶胶的膜沉积到基底的主表面上; c)在150℃的温度下从上一步骤得到的膜中除去造孔剂; d)用包含至少一种光致变色剂的溶液浸渍由步骤c)得到的介孔膜。 在替代实施方案中,将光致变色剂直接引入前体溶胶中。 在先前替代实施方案的替代实施方案中,前体溶胶不包含任何疏水性前体试剂,但是通过在其制备之后的处理使光致变色膜成为疏水性的。

    SULFUR MODIFIED SILANES FOR THE ELABORATION OF HIGH REFRACTIVE INDEX MATERIALS
    4.
    发明申请
    SULFUR MODIFIED SILANES FOR THE ELABORATION OF HIGH REFRACTIVE INDEX MATERIALS 有权
    用于制备高折射率材料的硫改性硅烷

    公开(公告)号:US20110077341A1

    公开(公告)日:2011-03-31

    申请号:US12957783

    申请日:2010-12-01

    摘要: A process for combining a polythiol reactant and an alkenyl silane reactant to form a polysulfide polysilane. The reactants are combined in a thiol-ene addition process driven by UV radiation. The polysulfide polysilane is then hydrolyzed and may be combined with other hydrolyzed compounds. For coatings, the polysulfide polysilane is hydrolyzed and may optionally be combined with nanoparticles. For bulk materials, the polysulfide polysilane is hydrolyzed, concentrated, and heated to form a high refractive index material which can be used to form optical articles such as lenses.

    摘要翻译: 一种将多硫醇反应物和烯基硅烷反应物组合以形成多硫化物聚硅烷的方法。 将反应物在由UV辐射驱动的硫醇 - 烯加成过程中组合。 然后将多硫化物聚硅烷水解,并可与其它水解化合物组合。 对于涂层,多硫化物聚硅烷被水解并且可任选地与纳米颗粒组合。 对于散装材料,多硫化物聚硅烷被水解,浓缩和加热以形成可用于形成诸如透镜的光学制品的高折射率材料。

    Optical article comprising a multilayer anti-reflective coating and method for production thereof
    5.
    发明申请
    Optical article comprising a multilayer anti-reflective coating and method for production thereof 审中-公开
    包括多层抗反射涂层的光学制品及其生产方法

    公开(公告)号:US20060275627A1

    公开(公告)日:2006-12-07

    申请号:US10567725

    申请日:2004-07-28

    IPC分类号: G11B5/66

    摘要: The invention relates to an optical article, for example, an ophthalmic lens, comprising at least one multilayer anti-reflective coating on a transparent substrate made from organic or mineral glass. Said coating comprises successively and starting at the substrate, a layer of material with high refractive index (HI), made from a hybrid organic/inorganic matrix within which are dispersed particles of mineral oxide or chalcogenide with a diameter of 2 to 50 nm and a layer of material with low refractive index (BI), obtained by hardening of a composition comprising at least one silane precursor (I) with 4 hydrolysable groups and at least one fluorosilane precursor (II), said second composition comprising at least 10% in mass of fluorine in a theoretical dry extract and with a molar ratio I/I+II greater than 80%

    摘要翻译: 本发明涉及一种光学制品,例如眼科镜片,其包括在由有机或矿物玻璃制成的透明基底上的至少一层多层抗反射涂层。 所述涂层依次从基底开始,由混合有机/无机基体制成的具有高折射率(HI)的材料层,其中分散有直径为2至50nm的无机氧化物或硫族化物的颗粒,以及 通过将包含至少一种含4个可水解基团的硅烷前体(I)的组合物和至少一种氟硅烷前体(II)硬化获得的具有低折射率(BI)的材料层,所述第二组合物包含至少10质量% 的氟在理论干提取物中的摩尔比I / I + II大于80%

    Process for applying a layered structure on a lens
    6.
    发明授权
    Process for applying a layered structure on a lens 有权
    在镜片上施加分层结构的工艺

    公开(公告)号:US08562772B2

    公开(公告)日:2013-10-22

    申请号:US13185529

    申请日:2011-07-19

    申请人: John Biteau

    发明人: John Biteau

    摘要: This invention relates to an improvement for applying a layered structure onto a convex surface of a lens. After thermoforming the layered structure, a curvature direction of the layered structure is inverted. The structure is then applied on the lens surface by continuously pushing the structure against the lens surface, starting from a contact point between a convex surface of the structure and the convex surface of the lens. The curvature direction of the layered structure is then inverted again, so that it recovers the curvature direction that resulted from thermoforming. Stresses within the layered structure are then reduced, and the structure can be assembled with the lens without defects.

    摘要翻译: 本发明涉及一种将分层结构应用到透镜的凸面上的改进。 在层叠结构热成型之后,层叠结构的曲率方向反转。 然后通过从结构的凸面和透镜的凸面之间的接触点连续地将结构推靠在透镜表面上,将结构施加在透镜表面上。 然后层叠结构的曲率方向再次反转,从而恢复由热成型产生的曲率方向。 然后在分层结构内的应力减小,并且结构可以与透镜组装而没有缺陷。

    Method for preparing an organo-silicon sol and materials obtained from such a sol

    公开(公告)号:US07157518B2

    公开(公告)日:2007-01-02

    申请号:US10610015

    申请日:2003-06-30

    IPC分类号: C08L83/04

    摘要: The method consists in hydrolysing an initial volume Vse of a precursor material comprising at least one polyalkoxysilane with a quantity of water such that x ⁢ ⁢ H 2 ⁢ O x ⁢ ⁢ Si ≥ 10 , ⁢ and where x H20 and x Si represent the number of moles of H20 and Si present, respectively, the concentration of the hydrolysate up to a volume substantially equal to the initial volume Vsi, leaving the concentrated hydrolysate until segregation into an aqueous phase and an organo-silicon phase, and recovery of the organo-silicon phase. A product can be obtained which comprises an organo-silicon sol comprising silicon species T1, T2, and T3, wherein the molar fraction of species T2 is equal or greater than 50%, comprising a condensation rate equal to or greater than 0.65, and further defined as lacking water, as determined by analyzing a sample of said organo-silicon sol by 1H NMR and observing the absence of peak corresponding to water.