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1. 发明公开

EP4245784A1 CURABLE COMPOSITION 审中-实审
公开(公告)号：EP4245784A1
公开(公告)日：2023-09-20
申请号：EP22749495.2
申请日：2022-01-20
申请人： Daicel Corporation
发明人： SHIBAMOTO, Akihiro , YOSHIMURA, Takashi , ASAI, Yukio
IPC分类号： C08G59/32 , C08G77/14 , G02C7/02 , G02C7/10 , C08K5/34 , C08L83/04 , C09D183/00 , C08L63/00 , C09D7/63
摘要： Provided is a curable composition that can form a lens having excellent visibility, antiglare effects, and contrast-enhancing effects by suppressing thermal degradation of a tetraazaporphyrin compound. The curable composition according to the present disclosure includes silsesquioxane containing a cyclohexene oxide group, and a tetraazaporphyrin compound having an absorption peak in a wavelength region of from 570 to 605 nm, in which a content of the tetraazaporphyrin compound is from 1000 to 10000 ppm by weight of a content of the silsesquioxane.

2. 发明公开

EP3683602A1 PLASTIC LENS 审中-实审
公开(公告)号：EP3683602A1
公开(公告)日：2020-07-22
申请号：EP18855904.1
申请日：2018-09-06
申请人： Daicel Corporation
发明人： SHIBAMOTO, Akihiro , YOSHIMURA, Takashi
IPC分类号： G02B1/14 , G02B1/113 , G02B1/115 , G02B5/08 , G02B5/30 , G02C7/10 , G02C7/12
摘要： The present invention aims at providing a plastic lens having excellent heat resistance and durability in which generation of cracks is suppressed even in high-temperature environments or when a mechanical stress being applied, and has excellent surface hardness and scratch resistance. The present invention provides a plastic lens containing a plastic lens substrate, a layer formed on at least one surface of the plastic lens substrate, and a vapor deposition coated film formed on at least one surface of the hard coating layer, the hard coating layer being a cured product of a curable composition containing a polyorganosilsesquioxane, the polyorganosilsesquioxane containing a constituent unit represented by Formula (1), a constituent unit represented by Formula (I), hard coating a constituent unit represented by (II), and a constituent unit represented by Formula (4); wherein a molar ratio of the constituent unit represented by Formula (I) and the constituent unit (II) represented by Formula (II) is 5 or greater and 500 or less,
a ratio of the constituent unit represented by Formula (1) and the constituent unit represented by Formula (4) relative to the total amount (100 mol%) of siloxane constituent units is from 55 to 100 mol%; a number average molecular weight is from 1000 to 50000; and a molecular weight dispersity (a weight average molecular weight/a number average molecular weight) is from 1.0 to 4.0.

3. 发明公开

EP3683603A1 PLASTIC LENS 审中-实审
公开(公告)号：EP3683603A1
公开(公告)日：2020-07-22
申请号：EP18856529.5
申请日：2018-09-06
申请人： Daicel Corporation
发明人： SHIBAMOTO, Akihiro , YOSHIMURA, Takashi
IPC分类号： G02B1/14 , C08G77/14 , C09D4/00 , C09D183/04 , G02C7/10 , G02C7/12
摘要： An object of the present invention is to provide a plastic lens that has a hard coat layer exhibiting high surface hardness and scratch resistance and that suppresses occurrence of interference fringes. The present invention provides a plastic lens containing a plastic lens substrate; and a hard coat layer formed on at least one surface of the plastic lens substrate, wherein the plastic lens substrate contains at least one resin selected from the group consisting of a polyamide-based resin, a polycarbonate-based resin, an acrylic resin, an allyl-based resin, a urethane-based resin, and a thiourethane-based resin, and the hard coat layer is a cured product of a curable composition containing a polyorganosilsesquioxane described below, a content of the polyorganosilsesquioxane being 80 wt.% or greater relative to the total solid content (100 wt.%) of the curable composition, the polyorganosilsesquioxane containing a constituent unit represented by Formula (1), the polyorganosilsesquioxane having a molar ratio of a constituent units of Formula (I) to constituent units of Formula (II) being from 5 to 500, the polyorganosilsesquioxane having a ratio of the constituent unit of Formula (1) and a constituent unit of Formula (4) relative to the total amount of siloxane constituent units being from 55 to 100 mol%, the polyorganosilsesquioxane having a number average molecular weight being from 1000 to 50000, and the polyorganosilsesquioxane having a molecular weight dispersity being from 1.0 to 4.0.
[Chem. 1]

[R 1 SiO 3/2 ] (1)

[Chem. 2]

[R a SiO 3/2 ] (I)

[Chem. 3]

[R b SiO 2/2 (OR c )] (II)

[Chem. 4]

[R 1 SiO 2/2 (OR c )] (4)

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