公开(公告)号：EP2113542A1

公开(公告)日：2009-11-04

申请号：EP08720784.1

申请日：2008-02-21

申请人： Tokuyama Corporation

发明人： KAWAGUCHI, Ikumi ,  NAGOH, Hironobu ,  MORI, Katsuhiro

IPC分类号： C09D183/06 ,  C09D7/12 ,  G02B1/10 ,  G02B5/23

CPC分类号： G02B5/23 ,  C08G77/14 ,  C08K3/36 ,  C08K5/5435 ,  C09D7/61 ,  C09D7/67 ,  C09D183/04 ,  C09D183/06 ,  G02B1/105 ,  G02B1/14 ,  Y10T428/25 ,  Y10T428/259 ,  Y10T428/31663

摘要： [Problem] To provide a coating composition capable of forming a hard coating on the surfaces of an optical base member such as a plastic lens featuring highly closely adhering property, excellent transparency and excellent scratch resistance. [Means for Solution] The coating composition comprise (a)a fine granular silica having a grain size of not larger than 30 nm; (b) organosilicon compound components containing an epoxy group-containing organosilicon compound (b1) and tetraalkoxysilane (b2)at a mass ratio (b1/b2) of 0.25 to 4.0; (c) water; and (d) a curing catalyst comprising a complex containing aluminum as a core metal, wherein the fine granular silica (a) is contained in an amount of 15 to 55 parts by mass, the water (c) is contained in an amount of 30 to 200 parts by mass and the curing catalyst (d) is contained in an amount of 0.1 to 5. 0 parts by mass per the total amount of the fine granular silica (a) and the organosilicon compound components (b) of 100 parts by mass.

公开(公告)号：EP1978382A1

公开(公告)日：2008-10-08

申请号：EP07707065.4

申请日：2007-01-19

申请人： Tokuyama Corporation

发明人： MORI, Katsuhiro ,  KAWABATA, Yuichiro ,  KAWAGUCHI, Ikumi ,  NAGOH, Hironobu

IPC分类号： G02B5/23 ,  B32B27/00 ,  B32B27/18 ,  C09K9/02 ,  G02B1/10 ,  G02C7/10

CPC分类号： G02B5/23 ,  C09K9/02 ,  C09K2211/1011 ,  C09K2211/1033 ,  C09K2211/1088 ,  G02B1/105 ,  G02B1/113 ,  G02B1/14 ,  Y10T428/256 ,  Y10T428/257 ,  Y10T428/259 ,  Y10T428/263 ,  Y10T428/264 ,  Y10T428/265 ,  Y10T428/31511 ,  Y10T428/31663 ,  Y10T428/31667

摘要： [PROBLEMS] To prevent or reduce the problem wherein color development and fading in expected color tones do not occur in an optical element that includes a photochromic coat layer containing alkylamino group-containing photochromic compounds and/or dialkylamino group-containing photochromic compounds in a high concentration and a hard coat layer formed on the photochromic coat layer. [MEANS FOR SOLVING PROBLEMS] A photochromic optical element comprising an optical substrate, a photochromic coat layer, and a hard coat layer that are laminated in this order, wherein (I) the photochromic coat layer comprising an alkylamino group-containing photochromic compound and/or a dialkylamino group-containing photochromic compound in a total amount of 0.1 to 10.0% by mass, and (II) the hard coat layer is obtained by curing a hard coat agent comprising metal oxide fine particles and an organosilicon compound, the hard coat agent containing as the organosilicon compound at least one selected from the group consisting of a tetraalkoxy silane, a methyl trialkoxy silane, and partial hydrolysates thereof in an amount of 10 to 60% by mass based on the total mass of the metal oxide fine particles and the organosilicon compound (with the proviso that, when the organosilicon compound is a partial hydrolysate of a partially hydrolyzable organosilicon compound, the mass of the organosilicon compound in the above total mass is the mass of the partially hydrolyzable organosilicon compound).

摘要翻译： 为了防止或减少在含有含有含有含烷基氨基的光致变色化合物和/或含二烷基氨基的光致变色化合物的光致变色涂层的光学元件中不发生预期色调的显色和褪色的问题， 浓度和在光致变色涂层上形成的硬涂层。 解决问题的手段一种光致变色光学元件，其包含依次层叠的光学基板，光致变色涂层和硬涂层，其中（I）含有含烷基氨基的光致变色化合物的光致变色涂层和/ 或含有二烷基氨基的光致变色化合物的总量为0.1〜10.0质量％，（II）硬涂层是通过固化包含金属氧化物微粒和有机硅化合物的硬涂层得到的，硬涂层 相对于金属氧化物微粒的总质量为10〜60质量％，含有作为有机硅化合物的至少一种选自四烷氧基硅烷，甲基三烷氧基硅烷及其部分水解物的至少一种， 有机硅化合物（条件是当有机硅化合物是部分可水解的有机硅化合物的部分水解产物时，有机硅化合物的质量 在上述总质量中的n化合物是部分可水解的有机硅化合物的质量）。