METHODS AND COMPOSITIONS FOR PIGMENTED HYDROGELS AND CONTACT LENSES

    公开(公告)号:US20220134694A1

    公开(公告)日:2022-05-05

    申请号:US17647859

    申请日:2022-01-13

    Abstract: In general, the disclosure relates to methods and compositions for preparing colorants useful for preparing pigmented hydrogels. The disclosure further relates to pigmented hydrogels comprising the disclosed colorants. In some instances, the colorant is an alcohol extract of an agro-material, such as turmeric, paprika, spinach, and/or pokorny woad or the colorants comprise one or more of: a carotenoid, chlorophyll-a, chlorophyll-b, a curcumoid, or indigorubin. Alternatively, the colorant can be carbon black. The disclosure further relates to contact lenses comprising the disclosed pigmented hydrogels.

    UV blocker loaded contact lenses
    5.
    发明授权
    UV blocker loaded contact lenses 有权
    紫外线阻断剂加载隐形眼镜

    公开(公告)号:US09594188B2

    公开(公告)日:2017-03-14

    申请号:US14296899

    申请日:2014-06-05

    Abstract: UV absorbing appliances, such as contact lenses, are prepared by including at least one UV absorbing compound in the appliances. UV absorbing compounds can be water insoluble and/or reside in UV absorbing nanoparticles having a mean diameter less than 10 nm. The UV absorbing nanoparticles incorporate into an appliance by polymerizing a monomer mixture containing the UV absorbing nanoparticles to form an appliance comprising the UV absorbing nanoparticles. The UV absorbing compounds or the UV absorbing nanoparticles incorporate into an appliance by placing the appliance in a solution of the UV absorbing compound or a dispersion of the UV absorbing nanoparticles in a non-aqueous solvent that swells the appliance. The UV absorbing compound or the UV absorbing nanoparticles infuse into the swollen appliance and are retained within the appliance upon removal of the non-aqueous solvent.

    Abstract translation: 通过在器具中包含至少一种UV吸收化合物来制备紫外线吸收器具,例如隐形眼镜。 UV吸收化合物可以是水不溶性的和/或驻留在平均直径小于10nm的UV吸收纳米颗粒中。 UV吸收纳米颗粒通过聚合含有UV吸收纳米颗粒的单体混合物结合到器具中以形成包含UV吸收纳米颗粒的器具。 UV吸收化合物或UV吸收纳米颗粒通过将该器具放置在UV吸收化合物或UV吸收纳米颗粒的分散体的溶液中而溶解在器具中,使其溶解在使水分膨胀的非水溶剂中。 UV吸收化合物或UV吸收纳米粒子注入溶胀的器具中,并且在除去非水溶剂后保留在器具内。

    METHOD OF MANUFACTURING STABLE EMULSIONS AND COMPOSITIONS CONTAINING THE SAME
    10.
    发明申请
    METHOD OF MANUFACTURING STABLE EMULSIONS AND COMPOSITIONS CONTAINING THE SAME 审中-公开
    制备稳定乳液的方法及其组合物

    公开(公告)号:US20160296476A1

    公开(公告)日:2016-10-13

    申请号:US15028496

    申请日:2014-10-09

    Inventor: Anuj Chauhan

    Abstract: Disclosed herein is a composition comprising a biologically active agent; a base oil; an additional oil that is soluble in the base oil with a partition coefficient for the biologically active molecule that is at least twice that of the base oil; where the base oil and the additional oil are present in the composition in an amount effective to reduce the amount of the biologically active agent in an aqueous phase to less than 80 wt % of the amount with just the base oil present in an otherwise identical composition at the same total oil loading; a non-ionic surfactant; and water.

    Abstract translation: 本文公开了包含生物活性剂的组合物; 基油; 可溶于基础油的另外的油,其生物活性分子的分配系数至少是基础油的两倍; 其中基础油和另外的油以组合物中存在的量有效地将水相中的生物活性剂的量减少至少于其量相同组合物中存在的基础油的80重量% 在相同的总装油量; 非离子表面活性剂; 和水。

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