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1.发明申请公开(公告)号：US20200181075A1
公开(公告)日：2020-06-11
申请号：US16641273
申请日：2019-03-29
Applicant: HOYA LENS THAILAND LTD. , KAGEYAMA Yukio
Inventor： Yukio KAGEYAMA
IPC: C07C319/22 , C08G18/38
Abstract: 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 made of an alkali metal sulfide and an alkali metal hydroxide to obtain a polyol compound selected from the group made 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.
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公开(公告)号：US20210206903A1
公开(公告)日：2021-07-08
申请号：US17210582
申请日：2021-03-24
Applicant: HOYA LENS THAILAND LTD.
Inventor： Masahisa KOUSAKA , Yukio KAGEYAMA
Abstract: [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：US20180273673A1
公开(公告)日：2018-09-27
申请号：US15992839
申请日：2018-05-30
Applicant: HOYA LENS THAILAND LTD.
Inventor： Yukio KAGEYAMA , Masahisa KOUSAKA , Tomofumi OHNISHI
Abstract: 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.
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公开(公告)号：US20220169778A1
公开(公告)日：2022-06-02
申请号：US17598018
申请日：2020-03-27
Applicant: HOYA LENS THAILAND LTD.
Inventor： Masahisa KOUSAKA , Yukio KAGEYAMA , Tomofumi OHNISHI , Yoshio SANO
Abstract: A polymerizable composition for optical components, which can prevent striae while keeping strength for optical components when a thick optical component is produced. A polymerizable composition for optical components 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 composition includes the thiol group-containing substance (B2) showing peak at a position at retention time three minutes or more from a peak of the polythiol compound (B1) in a chromatogram obtained by analyzing the composition by high performance liquid chromatography (HPLC) analysis, and the ratio (A/B1) is 80/100 to 95/100, wherein the equivalent ratio (A/B1) is an equivalent A of the polyisocyanate compound (A) using a weight and group number of the polyisocyanate compound (A) to B1 of the polythiol compound (B1) using a weight and group number of the polythiol compound (B1).
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公开(公告)号：US20190062489A1
公开(公告)日：2019-02-28
申请号：US16170693
申请日：2018-10-25
Applicant: HOYA LENS THAILAND LTD.
Inventor： Yukio KAGEYAMA , Masahisa KOUSAKA , Akinori YAMAMOTO
Abstract: Provided are: a method for producing a cured product, including a curable composition preparing step of preparing a curable composition by mixing a polythiol compound with a polyiso(thio)cyanate compound having a water content of 300 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 polythiol compound and a polyiso(thio)cyanate compound having a water content of 300 ppm or less on a mass basis; and an eyeglass lens substrate including the cured product.
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Patent Agency Ranking
公开(公告)号：US20200247942A1
公开(公告)日：2020-08-06
申请号：US16642802
申请日：2019-03-29
Applicant: HOYA LENS THAILAND LTD.
Inventor： Yukio KAGEYAMA , Masahide YAMADA
Abstract: 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 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：US20190062490A1
公开(公告)日：2019-02-28
申请号：US16172069
申请日：2018-10-26
Applicant: HOYA LENS THAILAND LTD.
Inventor： Yukio KAGEYAMA , Masahisa KOUSAKA , Akinori YAMAMOTO
Abstract: Provided are: a method for producing a cured product, including a curable composition preparing step of preparing a curable composition by mixing a polyiso(thio)cyanate compound with a polythiol compound having a water content of less than 20 ppm 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 and a polythiol compound having a water content of less than 20 ppm on a mass basis; and an eyeglass lens substrate including the cured product.
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公开(公告)号：US20190062488A1
公开(公告)日：2019-02-28
申请号：US16170441
申请日：2018-10-25
Applicant: HOYA LENS THAILAND LTD.
Inventor： Yukio KAGEYAMA , Masahisa KOUSAKA , Akinori YAMAMOTO
Abstract: 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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9.发明申请公开(公告)号：US20180362699A1
公开(公告)日：2018-12-20
申请号：US16015670
申请日：2018-06-22
Applicant: HOYA LENS THAILAND LTD.
Inventor： Yukio KAGEYAMA , Masahisa KOUSAKA , Tomofumi OHNISHI
IPC: C08G18/38 , C08G18/76 , C07C319/22 , C07C321/14 , G02B1/04
Abstract: Provided is a method for producing a polythiol compound, including reacting 2-mercaptoethanol with an epihalohydrin, wherein the reaction is carried out in the presence of a halide selected from the group consisting of a 2,3-dihalogeno-1-propanol and an allyl halide, and an amount of the halide in the reaction is more than 0.50% by mass and 10.00% by mass or less with respect to the total amount of the halide and the epihalohydrin. Also provided are a method for producing a curable composition, including producing a polythiol compound by the abovementioned production method, and a method for producing a cured product, including producing a curable composition by the abovementioned production method.
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公开(公告)号：US20220185944A1
公开(公告)日：2022-06-16
申请号：US17598092
申请日：2020-03-27
Applicant: HOYA LENS THAILAND LTD.
Inventor： Masahisa KOUSAKA , Yukio KAGEYAMA , Tomofumi OHNISHI , Yoshio SANO
Abstract: 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).
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