Ultraviolet radiation absorbing coating
    71.
    发明授权
    Ultraviolet radiation absorbing coating 失效
    紫外线吸收涂层

    公开(公告)号:US5328975A

    公开(公告)日:1994-07-12

    申请号:US42184

    申请日:1993-04-02

    CPC classification number: C09D183/14

    Abstract: An organoalkoxysilane/metal oxide sol-gel composition and method for its production are disclosed whereby an organoalkoxysilane of the general formulaR.sub.x Si(OR').sub.4-xwherein R is an organic radical, R' is a low molecular weight alkyl radical, and x is less than 4 and may be zero, is partially hydrolyzed in organic solution and reacted with a titanium alkoxide of the general formula Ti(OR'').sub.4 wherein R'' is a lower alkyl radical. The composition is hydrolyzed, dried and heat treated to form a silicon oxide/titanium oxide abrasion-resistant coating on a substrate with high ultraviolet radiation absorbance.

    Abstract translation: 公开了一种有机烷氧基硅烷/金属氧化物溶胶凝胶组合物及其制备方法,其中通式为RxSi(OR')4-x的有机烷氧基硅烷,其中R为有机基团,R'为低分子量烷基,x为 小于4,可以为零,在有机溶液中部分水解,并与通式Ti(OR“)4的钛醇盐反应,其中R”为低级烷基。 将组合物水解,干燥和热处理,以在具有高紫外线吸光度的基底上形成氧化硅/氧化钛耐磨涂层。

    Ion-exchanged abrasion resistant coatings
    72.
    发明授权
    Ion-exchanged abrasion resistant coatings 失效
    离子交换耐磨涂层

    公开(公告)号:US5035745A

    公开(公告)日:1991-07-30

    申请号:US546076

    申请日:1990-06-29

    CPC classification number: C09D1/00 C08G77/34 C09D183/04

    Abstract: An abrasion resistant and ultraviolet radiation resistant coating is disclosed comprising an inorganic oxide matrix formed by the hydrolysis and condensation of an alkoxysilane and/or other metal alkoxide, further comprising cerium oxide for ultraviolet radiation resistant and/or silica for improved abrasion resistance. A partially hydrolyzed silane sol containing colloidal cerium oxide is ion-exchange with an anion exchange resin in one embodiment. In another a partially hydrolyzed silane sol containing colloidal silica is ion-exchanged to remove sodium ions prior to adding the colloidal ceria resulting in improved properties in the coating composition and resultant coating.

    Abstract translation: 公开了一种耐磨和耐紫外线辐射的涂层,其包括通过烷氧基硅烷和/或其它金属醇盐的水解和缩合形成的无机氧化物基质,其还包含用于耐紫外线辐射的氧化铈和/或用于改善耐磨性的二氧化硅。 在一个实施方案中,含有胶体氧化铈的部分水解的硅烷溶胶与阴离子交换树脂进行离子交换。 在另一种含有胶体二氧化硅的部分水解的硅烷溶胶中,在加入胶态二氧化铈之前,将离子交换以除去钠离子,从而改善了涂料组合物和所得涂层的性能。

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