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公开(公告)号：EP3950756A1
公开(公告)日：2022-02-09
申请号：EP20777360.7
申请日：2020-03-27
摘要： Provided is a polymerizable composition for optical components, which can prevent the occurrence of striae while keeping the required strength for optical components even when a thick optical component is produced.
A polymerizable composition for optical components of one embodiment of the present invention is a mixture of a first composition including a polyisocyanate compound (A) and a second composition including a polythiol compound (B1) and a thiol group-containing substance (B2), the polymerizable composition further includes the thiol group-containing substance (B2) showing a peak at a position corresponding to a retention time three minutes or more later from a position of a peak of the polythiol compound (B1) in a chromatogram obtained by analyzing the second composition by high performance liquid chromatography (HPLC) analysis, and the equivalent ratio (A/B1) is 80/100 to 95/100, wherein the equivalent ratio (A/B1) represents a ratio of an equivalent A of the polyisocyanate compound (A) calculated using a molecular weight and a functional group number of the polyisocyanate compound (A) to an equivalent B1 of the polythiol compound (B1) calculated using a molecular weight and a functional group number of the polythiol compound (B1).-
公开(公告)号：EP3950757A1
公开(公告)日：2022-02-09
申请号：EP20778832.4
申请日：2020-03-27
摘要： Provided is a polymerizable composition for optical components, which can prevent the occurrence of coloring while keeping the required strength for optical components when an optical component is produced using the polymerizable composition for optical components.
The polymerizable composition for optical components according to the present embodiment includes a polyisocyanate compound (A) and a polythiol compound (B1) and has an equivalent ratio (A/B1) of 80/100 to 95/100, wherein the equivalent ratio (A/B1) represents a ratio of an equivalent A of the polyisocyanate compound (A) calculated using the molecular weight and the functional group number of the polyisocyanate compound (A) to an equivalent B1 of the polythiol compound (B1) calculated using the molecular weight and the functional group number of the polythiol compound (B1).-
公开(公告)号：EP3778687A1
公开(公告)日：2021-02-17
申请号：EP19776770.0
申请日：2019-03-29
发明人： KAGEYAMA, Yukio , YAMADA, Masahide
摘要： Provided is a method for producing a polymerizable composition, the method including: step (1) of preparing composition A having a water content of 200 ppm by mass or less, the composition A including a polyisocyanate component but not including a polymerization catalyst; step (2) of preparing composition B having a water content of 1,000 ppm by mass or less, the composition B including a polythiol component; and step (3) of mixing the composition A and the composition B and obtaining a polymerizable composition, and also provided is a method for producing an optical component, the method including: a step of injecting the above-mentioned polymerizable composition into a molding die; and a step of polymerizing the polymerizable composition.
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公开(公告)号：EP3421513A1
公开(公告)日：2019-01-02
申请号：EP16907293.1
申请日：2016-06-30
IPC分类号： C08G18/38
摘要： Provided are: a method for producing a cured product, including a curable composition preparing step of preparing a curable composition containing a polyiso(thio)cyanate compound, a polythiol compound, and a curing catalyst having a water content of 5000 ppm or less on a mass basis, and a curing step of curing the curable composition to obtain a cured product; a cured product obtained by curing a curable composition containing a polyiso(thio)cyanate compound, a polythiol compound, and a curing catalyst having a water content of 5000 ppm or less on a mass basis; and an eyeglass lens substrate including the cured product.
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公开(公告)号：EP3858883A1
公开(公告)日：2021-08-04
申请号：EP19866755.2
申请日：2019-09-27
发明人： KOUSAKA, Masahisa , KAGEYAMA, Yukio
摘要： [1] A polymerizable composition for an optical component, including a polyisocyanate component, a polythiol component, and a compound represented by formula (1) in an amount of 5 ppm by mass or more and 10,000 ppm by mass or less with respect to the total amount of the polyisocyanate component and the polythiol component, [2] an optical component resin that is a polymerized product of the polymerizable composition according to the above-described [1], [3] a spectacle lens including a lens substrate that is formed of the optical component resin according to the above-described [2], and [4] spectacles including the spectacle lens according to the above-described [3].
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公开(公告)号：EP3816715A1
公开(公告)日：2021-05-05
申请号：EP19827280.9
申请日：2019-06-26
发明人： KAGEYAMA, Yukio
摘要： The present invention relates to [1] a polymerizable composition for optical member containing a polymerizable component and a urethaneurea compound having a structural unit derived from tolylene diisocyanate in an amount of 0.1 to 10 parts by mass based on 100 parts by mass of a total amount of the polymerizable component; [2] a production method of an optical member, including a step of injecting the polymerizable composition of [1] into a molding die, and a step of polymerizing the polymerizable composition; and [3] a spectacle lens including a spectacle lens substrate obtained by the production method of [2].
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7.发明公开
公开(公告)号：EP3660000A1
公开(公告)日：2020-06-03
申请号：EP19777562.0
申请日：2019-03-29
发明人： KAGEYAMA, Yukio
IPC分类号： C07C319/20 , C07C321/14 , C08G18/38 , G02B1/04 , C07C319/14 , C07C323/12
摘要： Provided is a method for producing a polythiol compound, the method including reacting a halide represented by Formula (1) with an alkali metal compound selected from the group consisting of an alkali metal sulfide and an alkali metal hydroxide to obtain a polyol compound selected from the group consisting of a polyol compound represented by Formula (2) and a polyol compound represented by Formula (3), in which a content of iron in the alkali metal compound is 100 ppm or less on a mass basis.
in Formula (1), X represents a halogen atom.-
公开(公告)号：EP3492501A1
公开(公告)日：2019-06-05
申请号：EP17834569.0
申请日：2017-07-28
摘要： To provide a resin composition having a good slightly bluish color tone, a spectacle lens including a base material made of the resin composition, and a method for producing the resin composition.
Provided is a resin composition obtained by polymerizing a polymerizable composition including a polyisocyanate compound and a polythiol compound. The polymerizable composition includes a dye L having an absorption maximum wavelength of 550 nm or more and 600 nm or less in a toluene solution of 20 ppm by mass, and a dye S having an absorption maximum wavelength of 500 nm or more and less than 550 nm in a toluene solution of 20 ppm by mass. A mass ratio [(mass of dye L)/(mass of dye S)] of the dye L to the dye S is 5 or more and 500 or less.-
9.发明公开
公开(公告)号：EP3480185A1
公开(公告)日：2019-05-08
申请号：EP16907292.3
申请日：2016-06-30
IPC分类号： C07C319/20 , C07C321/14 , C08G18/38 , G02B1/04 , C07C319/14 , C07C323/12
摘要： Provided is a method for producing a polythiol compound, the method including: step 1 of reacting 2-mercaptoethanol having a water content of 3000 ppm or less on a mass basis, with epihalohydrin to obtain a halide represented by the formula (1), wherein X represents a halogen atom; step 2 of reacting the halide represented by the formula (1) with an alkali metal compound selected from the group consisting of an alkali metal sulfide and an alkali metal hydroxide to obtain a polyol compound selected from the group consisting of a polyol compound represented by the formula (2) and a polyol compound represented by the formula (3); step 3 of reacting the polyol compound with thiourea in the presence of an acid to obtain an isothiuronium salt; step 4 of hydrolyzing the isothiuronium salt in the presence of a base to obtain a polythiol salt; and step 5 of converting the polythiol salt into a polythiol by an acid to obtain at least one polythiol compound selected from the group consisting of a polythiol compound represented by the formula (4), a polythiol compound represented by the formula (5), a polythiol compound represented by the formula (6), and a polythiol compound represented by the formula (7).
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