Polymerizable composition for optical material and optical material
US-10081703-B2 · Sep 25, 2018 · US
Polyisocyanate composition, polyurethane resin, two-component curable polyurethane composition, and coating material
US10689481B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10689481-B2 |
| Application number | US-201615580997-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 8, 2016 |
| Priority date | Jun 12, 2015 |
| Publication date | Jun 23, 2020 |
| Grant date | Jun 23, 2020 |
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- Title
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Abstract
Official abstract text for this publication.
A polyisocyanate composition contains a modified product of xylylene diisocyanate and a modified product of pentamethylene diisocyanate, and/or a modified product of the xylylene diisocyanate and the pentamethylene diisocyanate. The ratio of the pentamethylene diisocyanate with respect to the total amount of the xylylene diisocyanate and the pentamethylene diisocyanate is 60 mol % or more and 95 mol % or less.
First claim
Opening claim text (preview).
The invention claimed is: 1. A polyisocyanate composition containing: a modified product of xylylene diisocyanate and a modified product of pentamethylene diisocyanate, and/or a modified product of the xylylene diisocyanate and the pentamethylene diisocyanate, and the ratio of the pentamethylene diisocyanate with respect to the total amount of the xylylene diisocyanate and the pentamethylene diisocyanate is 60 mol % or more and 95 mol % or less, wherein the modified product is a multiple molecular product containing two or more molecules of the xylylene diisocyanate and/or the pentamethylene diisocyanate, and the content ratio of the multiple molecular product containing four or more molecules of the xylylene diisocyanate and/or the pentamethylene diisocyanate with respect to the total amount of the polyisocyanate composition is 30 mass % or more and 65 mass % or less. 2. The polyisocyanate composition according to claim 1 , wherein the multiple molecular product containing four or more molecules of the xylylene diisocyanate and/or the pentamethylene diisocyanate contains a multiple molecular product containing four or more molecules of the xylylene diisocyanate, and the content ratio of the multiple molecular product containing four or more molecules of the xylylene diisocyanate with respect to the total amount of the multiple molecular product containing four or more molecules of the xylylene diisocyanate and/or the pentamethylene diisocyanate is 5 mass % or more and 45 mass % or less. 3. The polyisocyanate composition according to claim 1 , wherein the modified product contains at least one functional group selected from the group consisting of the following (a) to (i): (a) isocyanurate group, (b) allophanate group, (c) biuret group, (d) urethane group, (e) urea group, (f) uretdione group, (g) iminooxadiazinedione group, (h) uretonimine group, and (i) carbodiimide group. 4. A polyurethane resin obtained from reaction of the polyisocyanate composition according to claim 1 with an active hydrogen group-containing compound. 5. A two-component curable polyurethane composition containing a polyisocyanate component containing the polyisocyanate composition according to claim 1 , and a polyol component. 6. A coating material obtained from the two-component curable polyurethane composition according to claim 5 .
Assignees
Inventors
Classifications
Organic compounds · CPC title
Polyisocyanates or polyisothiocyanates · CPC title
containing urethdione groups · CPC title
formed by oligomerisation of aromatic isocyanates or isothiocyanates · CPC title
formed by oligomerisation of aliphatic and/or cycloaliphatic isocyanates or isothiocyanates · CPC title
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- What does patent US10689481B2 cover?
- A polyisocyanate composition contains a modified product of xylylene diisocyanate and a modified product of pentamethylene diisocyanate, and/or a modified product of the xylylene diisocyanate and the pentamethylene diisocyanate. The ratio of the pentamethylene diisocyanate with respect to the total amount of the xylylene diisocyanate and the pentamethylene diisocyanate is 60 mol % or more and 9…
- Who is the assignee on this patent?
- Mitsui Chemicals Inc
- What technology area does this patent fall under?
- Primary CPC classification C08G18/73. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 23 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 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).