Polyurethane resin
US-2015291758-A1 · Oct 15, 2015 · US
Polyisocyanate composition, solar cell member covering material, solar cell member with cover layer, microcapsule, and binder for ink
US9822212B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9822212-B2 |
| Application number | US-201314416525-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 30, 2013 |
| Priority date | Jul 31, 2012 |
| Publication date | Nov 21, 2017 |
| Grant date | Nov 21, 2017 |
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- Title
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Abstract
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A polyisocyanate composition is produced by reaction of bis(isocyanatomethyl) cyclohexane with trimethylolpropane, and contains a trimethylolpropane-monomolecular-body obtained by reaction of three molecules of bis(isocyanatomethyl) cyclohexane with one molecule of trimethylolpropane, and a trimethylolpropane-bimolecular-body obtained by reaction of five molecules of bis(isocyanatomethyl) cyclohexane with two molecules of trimethylolpropane; and the molar ratio of trimethylolpropane-monomolecular-body relative to trimethylolpropane-bimolecular-body (trimethylolpropane-monomolecular-body/trimethylolpropane-bimolecular-body) contained in the polyisocyanate composition is 1.5 or more and 4.5 or less.
First claim
Opening claim text (preview).
The invention claimed is: 1. A polyisocyanate composition produced by reaction of bis(isocyanatomethyl) cyclohexane with trimethylolpropane, and having an isocyanate croup at its molecular terminal, wherein the polyisocyanate composition comprises a trimethylolpropane-monomolecular-body obtained by reaction of three molecules of bis(isocyanatomethyl) cyclohexane with one molecule of trimethylolpropane, and a trimethylolpropane-bimolecular-body obtained by reaction of five molecules of bis(isocyanatomethyl) cyclohexane with two molecules of trimethylolpropane; the molar ratio of trimethylolpropane-monomolecular-body relative to trimethylolpropane-bimolecular-body (trimethylolpropane-monomolecular-body/trimethylolpropane-bimolecular-body) contained in the polyisocyanate composition is 1.5 or more and 4.5 or less, and wherein, in reaction of bis(isocyanatomethyl) cyclohexane with trimethylolpropane, a molar ratio of bis(isocyanatomethyl) cyclohexane relative to trimethylolpropane (bis(isocyanatomethyl) cyclohexane/trimethylolpropane) in total is 4 or more and 23 or less. 2. The polyisocyanate composition according to claim 1 , wherein the bis(isocyanatomethyl) cyclohexane has a 1,4-bis(isocyanatomethyl) cyclohexane content of 5 mol % or more. 3. The polyisocyanate composition according to claim 2 , wherein the 1,4-bis(isocyanatomethyl) cyclohexane contains 80 mol % or more and 93 mol % or less of trans 1,4-bis(isocyanatomethyl) cyclohexane. 4. The polyisocyanate composition according to claim 1 , wherein an average number of the isocyanate groups is 3 or more and 4.5 or less. 5. The polyisocyanate composition according to claim 1 , used as a curing agent for a covering material of a solar cell member. 6. A polyisocyanate composition produced by reaction of bis(isocyanatomethyl) cyclohexane with trimethylolpropane, and having an isocyanate group at its molecular terminal, wherein the polyisocyanate composition comprises a trimethylolpropane-monomolecular-body obtained by reaction of three molecules of bis(isocyanatomethyl) cyclohexane with one molecule of trimethylolpropane, and a trimethylolpropane-bimolecular-body obtained by reaction of five molecules of bis(isocyanatomethyl) cyclohexane with two molecules of trimethylolpropane; the molar ratio of trimethylolpropane-monomolecular-body relative to trimethylolpropane-bimolecular-body (trimethylolpropane-monomolecular-body/trimethylolpropane-bimolecular-body) contained in the polyisocyanate composition is 1.5 or more and 4.5 or less, and a molar ratio of the bis(isocyanatomethyl) cyclohexane relative to the trimethylolpropane (bis(isocyanatomethyl) cyclohexane/trimethylolpropane) is 4 or more and 23 or less. 7. A polyisocyanate composition produced by reaction of bis(isocyanatomethyl) cyclohexane with trimethylolpropane, and having an isocyanate group at its molecular terminal, wherein the polyisocyanate composition comprises a trimethylolpropane-monomolecular-body obtained by reaction of three molecules of bis(isocyanatomethyl) cyclohexane with one molecule of trimethylolpropane, and a trimethylolpropane-bimolecular-body obtained by reaction of five molecules of bis(isocyanatomethyl) cyclohexane with two molecules of trimethylolpropane; the molar ratio of trimethylolpropane-monomolecular-body relative to trimethylolpropane-bimolecular-body (trimethylolpropane-monomolecular-body/trimethylolpropane-bimolecular-body) contained in the polyisocyanate composition is 1.5 or more and 4.5 or less, wherein the polyisocyanate composition comprises bis(isocyanatomethyl) cyclohexane unit and trimethylolpropane unit, and a molar ratio of the bis(isocyanatomethyl) cyclohexane unit relative to the trimethylolpropane unit is 4 or more and 23 or less.
Assignees
Inventors
Classifications
containing fluorine atoms · CPC title
containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group · CPC title
Homopolymers or copolymers of methyl methacrylate · CPC title
- C08G18/8025Primary
Masked aliphatic or cycloaliphatic polyisocyanates · CPC title
aliphatic · CPC title
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Frequently asked questions
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- What does patent US9822212B2 cover?
- A polyisocyanate composition is produced by reaction of bis(isocyanatomethyl) cyclohexane with trimethylolpropane, and contains a trimethylolpropane-monomolecular-body obtained by reaction of three molecules of bis(isocyanatomethyl) cyclohexane with one molecule of trimethylolpropane, and a trimethylolpropane-bimolecular-body obtained by reaction of five molecules of bis(isocyanatomethyl) cyclo…
- Who is the assignee on this patent?
- Mitsui Chemicals Inc
- What technology area does this patent fall under?
- Primary CPC classification C08G18/8025. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 21 2017 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).