Method for producing resin for optical component, resin for optical component, spectacle lens, and spectacles

Patent metadata

Field	Value
Publication number	US-2019218331-A1
Application number	US-201916366719-A
Country	US
Kind code	A1
Filing date	Mar 27, 2019
Priority date	Sep 29, 2017
Publication date	Jul 18, 2019
Grant date	—

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.

First claim

1 . A method for producing an optical component resin, comprising
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, wherein a hydrolyzable chlorine compound contained in the polyisocyanate component has a content in a range of 10 ppm by mass or more and 100 ppm by mass or less in the polyisocyanate component.

2 . The method for producing an optical component resin according to claim 1 , wherein the polythiol compound has a refractive index of 1.62 or more and 1.70 or less.

3 . The method for producing an optical component resin according to claim 1 , wherein the polyisocyanate component contains 1,3-bis(isocyanatomethyl) benzene.

4 . The method for producing an optical component resin according to claim 1 , wherein the polythiol compound contains 4,7-bis(mercaptomethyl)-3,6,9-trithia-1,11-undecanedithiol, 4,8-bis(mercaptomethyl)-3,6,9-trithia-1,11-undecanedithiol, and 5,7-bis(mercaptomethyl)-3,6,9-trithia-1,11-undecanedithiol.

5 . The method for producing an optical component resin according to claim 1 , further comprising a step of dyeing an obtained optical component resin after the polymerization step.

6 . The method for producing an optical component resin according to claim 5 , wherein the dyeing step is performed by immersing the optical component resin in a dyeing solution containing a dye.

7 . The method for producing an optical component resin according to claim 6 , wherein the dye is a disperse dye.

8 . The method for producing an optical component resin according to claim 7 , wherein the disperse dye contains an anthraquinone-based dye.

9 . An optical component resin which is a polymer of 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, wherein
a hydrolyzable chlorine compound contained in the polyisocyanate component has a content in a range of 10 ppm by mass or more and 100 ppm by mass or less in the polyisocyanate component.

10 . An optical component comprising the optical component resin according to claim 9 .

11 . A spectacle lens comprising a lens substrate formed of the optical component resin according to claim 9 .

12 . The spectacle lens according to claim 11 , wherein the lens substrate is dyed.

13 . Spectacles comprising the spectacle lens according to claim 11 .

Assignees

• Hoya Lens Thailand Ltd

Inventors

• Kousaka Masahisa
• Iryo Takeaki

Classifications

• D06P1/20

  Anthraquinone dyes · CPC title

• D06P3/26

  using dispersed dyestuffs · CPC title

• G02B1/041

  Lenses · CPC title

• C08G18/242

  organometallic compounds containing tin-carbon bonds · CPC title

• C08J3/20

  Compounding polymers with additives, e.g. colouring · CPC title