申请人:Tokuyama Corporation
公开号:EP2423281A1
公开(公告)日:2012-02-29
[Problem] To provide a coating composition for forming a hard coating which, by itself, favorably adheres to a plastic optical substrate, and effectively prevents the occurrence of cracks caused by the thermal hysteresis at the time of curing.
[Means for Solution] The coating composition for forming a hard coating, contains a fine inorganic oxide particle, a hydrolyzable organosilicon compound, water, a curing catalyst and an organic solvent, wherein cyclic ketone is contained in an amount of 0.10 parts by mass to 30.00 parts by mass per 100 parts by mass of the total of the fine inorganic oxide particle and the hydrolyzable organosilicon compound.
[问题]提供一种用于形成硬涂层的涂层组合物,该涂层组合物本身有利于附着在塑料光学基材上,并有效防止固化时由于热滞后而产生的裂纹。
[解决方法] 这种用于形成硬涂层的涂料组合物含有细无机氧化物颗粒、可水解有机硅化合物、水、固化催化剂和有机溶剂,其中环酮的含量为细无机氧化物颗粒和可水解有机硅化合物的总和每 100 份质量中 0.10 份至 30.00 份质量。