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    • 9. 发明专利
    • Addition curable silicone composition
    • JP5053714B2
    • 2012-10-17
    • JP2007143515
    • 2007-05-30
    • 株式会社カネカ
    • 良治 米虫良太郎 辻
    • C08L83/05C08K9/06C08L83/07C09C1/00
    • PROBLEM TO BE SOLVED: To provide an addition curable silicone composition having excellent transparency and containing uniformly dispersed ultrafine zinc oxide particles having a number-average particle diameter of ≤20 nm and to provide a cured product. SOLUTION: The addition curable silicone composition contains ultrafine zinc oxide particles having a number-average particle diameter of 0.5-20 nm and surface-modified with a silane compound having a hydrolyzable group and a siloxy group, and a siloxane compound having a hydrosilyl group. As necessary, the composition may further contain an alkenyl-containing siloxane compound, a platinum catalyst and a cure retarder. The invention further provides a cured product produced by curing the silicone composition. The cured product contains a large amount of uniformly dispersed ultrafine zinc oxide particles without causing the agglomeration of the particles and having excellent photoluminescence, electroluminescence, ultraviolet shielding performance, high refractive index and transparency. COPYRIGHT: (C)2009,JPO&INPIT