Polymerizable composition for optical materials, optical material, and process for producing same
US-2016313575-A1 · Oct 27, 2016 · US
Resin composition
US10752726B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10752726-B2 |
| Application number | US-201815992839-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 30, 2018 |
| Priority date | Jul 29, 2016 |
| Publication date | Aug 25, 2020 |
| Grant date | Aug 25, 2020 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
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.
First claim
Opening claim text (preview).
The invention claimed is: 1. A resin composition obtained by polymerizing a polymerizable composition including a polyisocyanate compound and a polythiol compound, wherein 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, and 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. 2. The resin composition according to claim 1 , wherein the total amount of the dye L and the dye S to be added is 200 ppb by mass or more and 10,000 ppb by mass or less in the resin composition. 3. The resin composition according to claim 1 , wherein the polyisocyanate compound is one or more selected from the group consisting of xylylene diisocyanate, isophorone diisocyanate, hexamethylene diisocyanate, bis(isocyanatomethyl)cyclohexane, dicyclohexylmethane diisocyanate, and bis(isocyanatomethyl)bicycloheptane. 4. The resin composition according to claim 1 , wherein the polythiol compound is one or more selected from the group consisting of bis(mercaptomethyl)dithiane, pentaerythritol tetrakis(2-mercaptoacetate), pentaerythritol tetrakis(3-mercaptopropionate), bis(mercaptoethylthio)mercaptopropane, bis(mercaptomethyl)-3,6,9-trithiaundecanedithiol, trimethylolpropane tris(2-mercaptoacetate), trimethylolpropane tris(3-mercaptopropionate), butanediol bis(2-mercaptoacetate), butanediol bis(3-mercaptopropionate), dipentaerythritol hexakis(2-mercaptoacetate), and dipentaerythritol hexakis(3-mercaptopropionate. 5. The resin composition according to claim 4 , wherein bis(mercaptomethyl)-3,6,9-trithiaundecanedithiol is a mixture of 4,7-bis(mercaptomethyl)-3,6,9-trithiaundecane-1,11-dithiol, 4,8-bis(mercaptomethyl)-3,6,9-trithiaundecane-1,11-dithiol, and 5,7-bis(mercaptomethyl)-3,6,9-trithiaundecane-1,11-dithiol. 6. The resin composition according to claim 1 , wherein the polymerizable composition further includes an ultraviolet absorber. 7. A spectacle lens comprising a base material made of the resin composition according to claim 1 . 8. A method for producing a resin composition, comprising a step of polymerizing a polymerizable composition including a polyisocyanate compound and a polythiol compound, wherein 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, and 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.
Assignees
Inventors
Classifications
- C08G18/246Primary
containing also tin-carbon bonds · CPC title
made of organic materials, e.g. plastics (G02B1/08 takes precedence) · CPC title
Lenses · CPC title
- C08G18/3855Primary
having sulfur · CPC title
Optical parts (characterised by the material G02B1/00) · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US10752726B2 cover?
- 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 5…
- Who is the assignee on this patent?
- Hoya Lens Thailand Ltd
- What technology area does this patent fall under?
- Primary CPC classification C08G18/246. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 25 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).