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LOW REFRACTIVE INDEX COMPOSITION, ABRASION RESISTANT ANTI-REFLECTIVE COATING, AND METHOD FOR FORMING ABRASION RESISTANT ANTI-REFLECTIVE COATING
LOW REFRACTIVE INDEX COMPOSITION, ABRASION RESISTANT ANTI-REFLECTIVE COATING, AND METHOD FOR FORMING ABRASION RESISTANT ANTI-REFLECTIVE COATING
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机译:低折射率指数组成,耐磨损抗反射涂层以及形成耐磨损抗反射涂层的方法
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摘要
A low refractive index composition is provided comprising the reaction product of: (i) a fluoroelastomer having at least one cure site; (ii) a multiolefinic crosslinker; (iii) a free radical polymerization initiator; (iv) a nanosilica composite comprising: (iv-a) a plurality of nanosilica particles, and (iv-b) at least one of a hydrolysis and condensation product of an oxysilane having a carbon-carbon double bond, wherein the at least one of a hydrolysis and condensation product is formed by contacting, in the presence of an organic acid and a lower alkyl alcohol, the oxysilane with from about 3 to about 9 moles of water per mole of hydrolyzable functional group bonded to the silicon of the oxysilane. The present invention further provides abrasion resistant anti-reflective coatings formed from these low refractive index compositions and methods for forming abrasion resistant anti-reflective coatings for optical display substrates from these low refractive index compositions.
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