公开(公告)号：US11267953B2

公开(公告)日：2022-03-08

申请号：US16721999

申请日：2019-12-20

Applicant: HOYA LENS THAILAND LTD.

Inventor： Masahisa Kousaka ,  Natsumi Tasaki

IPC: C08L75/04 ,  C08K5/521 ,  G02C7/02 ,  G02B1/04 ,  C08G18/38 ,  C08G18/76

Abstract: An iso(thio)cyanate composition for an optical component has excellent storage stability. The iso(thio)cyanate composition includes an iso(thio)cyanate compound having two or more iso(thio)cyanate groups in a molecule, a phosphoric acid ester compound represented by general formula (1), and a phosphoric acid ester compound represented by general formula (2). A total amount of the phosphoric acid ester compounds is 1 ppm or greater and less than 25,000 ppm, based on the mass of the iso(thio)cyanate compound. A molar ratio of the phosphoric acid ester compound represented by general formula (1) and the phosphoric acid ester compound represented by general formula (2) is 30/70 to 70/30.

公开(公告)号：US11021563B2

公开(公告)日：2021-06-01

申请号：US16366719

申请日：2019-03-27

Applicant: HOYA LENS THAILAND LTD.

Inventor： Masahisa Kousaka ,  Takeaki Iryo

IPC: C08G18/38 ,  C08G18/76 ,  C08J7/06 ,  D06P3/72 ,  G02B1/04 ,  C09B6/00 ,  C09B67/22 ,  C08G18/24 ,  D06P1/20

Abstract: An embodiment of the present disclosure relates to a method for producing an optical component resin having excellent dyeability, an optical component resin, a spectacle lens, and spectacles. A method for producing an optical component resin, including a step of polymerizing a polymerizable composition containing a polyisocyanate component and a polythiol component containing 40 mol % or more of a polythiol compound having two or more sulfide bonds in a molecular structure thereof, in which the content of a hydrolyzable chlorine compound contained in the polyisocyanate component is in a range of 10 ppm by mass or more and 100 ppm by mass or less in the polyisocyanate component, an optical component resin obtained by the producing method, an optical component formed of the optical component resin, a spectacle lens including a lens substrate formed of the optical component resin, and spectacles including the spectacle lens.

公开(公告)号：US11001699B2

公开(公告)日：2021-05-11

申请号：US16113603

申请日：2018-08-27

Applicant: HOYA LENS THAILAND LTD.

Inventor： Masahisa Kousaka ,  Natsumi Tasaki

IPC: G02B1/04 ,  G02B5/22 ,  C08K5/3475 ,  C08L101/00

Abstract: To provide a transparent plastic substrate having a high cut rate of blue light, a plastic lens and a transparent plastic member. A transparent plastic substrate containing a benzotriazole compound represented by the formula (1), a plastic lens containing the transparent plastic substrate, and a transparent plastic member containing a benzotriazole compound represented by the formula (1).

公开(公告)号：US10947365B2

公开(公告)日：2021-03-16

申请号：US16113673

申请日：2018-08-27

Applicant: HOYA LENS THAILAND LTD.

Inventor： Masahisa Kousaka ,  Natsumi Tasaki

IPC: G02B1/04 ,  G02B5/22 ,  C08K5/3475 ,  C08L101/00

Abstract: To provide a transparent plastic substrate having a high cut rate of blue light, a plastic lens and a transparent plastic member. A transparent plastic substrate containing a benzotriazole compound represented by the formula (1), a plastic lens containing the transparent plastic substrate, and a transparent plastic member containing a benzotriazole compound represented by the formula (1).

公开(公告)号：US10766996B2

公开(公告)日：2020-09-08

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 ,  C07C321/14 ,  C07C319/14 ,  C07C319/22 ,  C08G18/76 ,  G02B1/04 ,  C07C319/20

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.

公开(公告)号：US10465036B2

公开(公告)日：2019-11-05

申请号：US15515167

申请日：2015-09-09

Applicant: HOYA LENS THAILAND LTD.

Inventor： Takayuki Iijima ,  Masahisa Kousaka

IPC: C08G18/38 ,  C08G18/72 ,  G02B1/04 ,  G02C7/02 ,  C08G18/73 ,  C08G18/75 ,  C08G18/24

Abstract: A polymerizable composition which can suppress generation of turbidity, optical distortion, and striae in a transparent resin obtained therefrom, a transparent resin obtained from the polymerizable composition, an optical material containing the transparent resin, a plastic lens containing the optical material, and a method for manufacturing the transparent resin. The present disclosure is a polymerizable composition containing a polythiol compound having at least three mercapto groups and a polyiso(thio)cyanate compound. The polyiso(thio)cyanate compound contains only a polyiso(thio)cyanate compound having no aromatic ring, and a thiol equivalent ratio which is a measured value of a thiol equivalent of the polythiol compound with respect to a theoretical value of the thiol equivalent is 0.900 or more and less than 1.000.

公开(公告)号：US12139573B2

公开(公告)日：2024-11-12

申请号：US17598018

申请日：2020-03-27

Applicant: HOYA LENS THAILAND LTD.

Inventor： Masahisa Kousaka ,  Yukio Kageyama ,  Tomofumi Ohnishi ,  Yoshio Sano

IPC: C08G18/38 ,  C08G18/75 ,  C08G18/76 ,  G02B1/04 ,  G02C7/02

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).

公开(公告)号：US10752726B2

公开(公告)日：2020-08-25

申请号：US15992839

申请日：2018-05-30

Applicant: HOYA LENS THAILAND LTD.

Inventor： Yukio Kageyama ,  Masahisa Kousaka ,  Tomofumi Ohnishi

IPC: C08L75/04 ,  C08G18/38 ,  G02B1/04 ,  C08G18/24 ,  C08G18/73 ,  C08G18/75 ,  C08G18/76 ,  G02B1/08 ,  G02C7/02

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.

公开(公告)号：US10745539B2

公开(公告)日：2020-08-18

申请号：US16222577

申请日：2018-12-17

Applicant: HOYA LENS THAILAND LTD.

Inventor： Masahisa Kousaka ,  Natsumi Tasaki

IPC: C08L101/00 ,  G02B1/04 ,  G02B5/22 ,  C08K5/3475

Abstract: To provide a transparent plastic substrate having a high cut rate of blue light, a plastic lens and a transparent plastic member. A transparent plastic substrate containing a benzotriazole compound represented by the formula (1), a plastic lens containing the transparent plastic substrate, and a transparent plastic member containing a benzotriazole compound represented by the formula (1).

公开(公告)号：US11479654B2

公开(公告)日：2022-10-25

申请号：US16367698

申请日：2019-03-28

Applicant: HOYA LENS THAILAND LTD.

Inventor： Masahisa Kousaka

IPC: C08K5/3475 ,  C08G18/75 ,  C08G18/52 ,  C08G18/38 ,  G02C7/00 ,  G02B1/04 ,  C08G18/76 ,  C08K5/00

Abstract: A method for producing an optical component resin, suppressing yellowing due to addition of an ultraviolet absorber, an optical component resin, a spectacle lens, and spectacles. A method for producing an optical component resin, including a step of polymerizing a polymerizable composition containing a polythiol component, a polyisocyanate component, and an ultraviolet absorber, in which the ultraviolet absorber has a Hazen color number (APHA) of 40 or less in a toluene solution thereof having a concentration of 10% by mass, an optical component resin obtained by the producing method, an optical component formed of the optical component resin, a spectacle lens including a lens substrate formed of the optical component resin, and spectacles including the spectacle lens.