Monomer for optical component, polymerizable composition for optical component, cured product, spectacle lens, and method for producing monomer for optical component
US-2024336589-A1 · Oct 10, 2024 · US
Episulfide compound and optical material composition containing same
US10065940B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10065940-B2 |
| Application number | US-201615521723-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 1, 2016 |
| Priority date | Mar 31, 2015 |
| Publication date | Sep 4, 2018 |
| Grant date | Sep 4, 2018 |
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Abstract
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According to the present invention, it is possible to provide an optical material composition that contains an episulfide compound represented by formula (1) and an episulfide compound represented by formula (2). According to this optical material composition, it is possible to suppress a reduction in the yield rate caused by molding defects, and possible to obtain an optical material having excellent dyeability. (In formula (1), m and p are each an integer between 0 and 4, and n and q are each an integer between 0 and 2.) (In formula (2), m is an integer between 0 and 4 and n is an integer between 0 and 2).
First claim
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The invention claimed is: 1. An episulfide compound represented by formula (1): wherein m and p are each an integer between 0 and 4 and n and q are each an integer between 0 and 2. 2. A composition for optical materials, which comprises the episulfide compound represented by formula (1) according to claim 1 and an episulfide compound represented by formula (2): wherein m is an integer between 0 and 4 and n is an integer between 0 and 2. 3. The composition for optical materials according to claim 2 , wherein the content of the episulfide compound represented by formula (1) is 0.001 to 5.0% by mass, relative to the total amount of the composition for optical materials. 4. The composition for optical materials according to claim 2 , wherein the content of the episulfide compound represented by formula (2) is 40 to 99.999% by mass, relative to the total amount of the composition for optical materials. 5. The composition for optical materials according to claim 2 , further comprising polythiol. 6. The composition for optical materials according to claim 5 , further comprising polyisocyanate. 7. The composition for optical materials according to claim 2 , further comprising sulfur. 8. A polymerizable and curable composition, which comprises the composition for optical materials according to claim 2 and a polymerization catalyst in an amount of 0.0001 to 10% by mass relative to the total amount of the composition for optical materials. 9. An optical material obtained by curing the polymerizable and curable composition according to claim 8 . 10. An optical material obtained by curing the composition for optical materials according to claim 2 . 11. An optical lens comprising the optical material according to claim 10 . 12. A method for producing an optical material, which comprises adding a polymerization catalyst in an amount of 0.0001 to 10% by mass relative to the total amount of the composition for optical materials according to claim 2 to be polymerized and cured.
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Classifications
Optical parts (characterised by the material G02B1/00) · CPC title
containing heterocyclic rings having at least one sulfur atom in the ring · CPC title
from thiiranes · CPC title
containing only one aromatic ring · CPC title
made of organic materials, e.g. plastics (G02B1/08 takes precedence) · CPC title
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- What does patent US10065940B2 cover?
- According to the present invention, it is possible to provide an optical material composition that contains an episulfide compound represented by formula (1) and an episulfide compound represented by formula (2). According to this optical material composition, it is possible to suppress a reduction in the yield rate caused by molding defects, and possible to obtain an optical material having ex…
- Who is the assignee on this patent?
- Mitsubishi Gas Chemical Co
- What technology area does this patent fall under?
- Primary CPC classification C07D331/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Sep 04 2018 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).