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

Patent metadata

Field	Value
Publication number	US-11021563-B2
Application number	US-201916366719-A
Country	US
Kind code	B2
Filing date	Mar 27, 2019
Priority date	Sep 29, 2017
Publication date	Jun 1, 2021
Grant date	Jun 1, 2021

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

The invention claimed is:

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

• C08G18/7642

  containing at least two isocyanate or isothiocyanate groups linked to the aromatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate groups, e.g. xylylene diisocyanate or homologues substituted on the aromatic ring · CPC title

• C08J2375/04

  Polyurethanes · CPC title

• C08K5/3475

  condensed with carbocyclic rings · CPC title

• C08G18/3876 Primary

  containing mercapto groups · CPC title

• C08J7/065

  Low-molecular-weight organic substances, e.g. absorption of additives in the surface of the article · CPC title