Polyoxyalkylene polyol or monool and polyurethane resin
US-9388271-B2 · Jul 12, 2016 · US
Lewis acid polymerization catalyst
US11001669B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11001669-B2 |
| Application number | US-201816641926-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 14, 2018 |
| Priority date | Sep 14, 2017 |
| Publication date | May 11, 2021 |
| Grant date | May 11, 2021 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A Lewis acid polymerization catalyst has a general formula M(R 1 ) 1 (R 2 ) 1 (R 3 ) 1 (R 4 ) 0 or 1 , whereas M is boron, R 1 , R 2 , R 3 , and R 4 are each independent, R 1 is a 3,5-bis(trifluoromethyl)-substituted phenyl group, R 2 is the 3,5-bis(trifluoromethyl)-substituted phenyl group or a first fluoro-substituted phenyl group selected from Set 1 structures, R 3 is independently a second fluoro-substituted phenyl group selected from the Set 1 structures, and optional R 4 includes a third functional group or functional polymer group.
First claim
Opening claim text (preview).
The invention claimed is: 1. A Lewis acid polymerization catalyst, comprising: a general formula M(R 1 ) 1 (R 2 ) 1 (R 3 ) 1 (R 4 ) 0 or 1 , whereas M is boron, R 1 , R 2 , R 3 , and R 4 are each independent, R 1 is a 3,5-bis(trifluoromethyl)-substituted phenyl group, R 2 is the 3,5-bis(trifluoromethyl)-substituted phenyl group or a first substituted phenyl group selected from Set 1 structures, R 3 is independently a second substituted phenyl group selected from the Set 1 structures, and optional R 4 includes a functional group or functional polymer group, wherein the Set 1 structures are: 2. The Lewis acid catalyst as claimed in claim 1 , wherein R 2 is the 3,5-bis(trifluoromethyl)-substituted phenyl group. 3. The Lewis acid catalyst as claimed in claim 1 , wherein R 2 is the first substituted phenyl group selected from Set 1 structures. 4. The method as claimed in any one of claims 1 to 3 , wherein the Lewis acid catalyst has the general formula M(R 1 ) 1 (R 2 ) 1 (R 3 ) 1 (R 4 ) 1 . 5. The Lewis acid catalyst as claimed in claim 4 , wherein R 4 is a cyclic ether having 3-10 carbon atoms. 6. The Lewis acid catalyst as claimed in claim 4 , wherein R 4 is a ketone having 3-10 carbon atoms. 7. The Lewis acid catalyst as claimed in any one of claims 1 to 6 , wherein the Lewis acid catalyst is a polymerization catalyst for forming a polyether polyol. 8. A polyether polyol that is a non-finished polyol that includes the Lewis acid catalyst as claimed in any one of claims 1 to 6 . 9. A polyurethane polymer that is the reaction product of the polyether polyol prepared with the Lewis acid catalyst as claimed in any one of claims 1 to 6 and an isocyanate. 10. A method of producing a polyether polyol, the method comprising providing the Lewis acid catalyst as claimed in any one of claims 1 to 6 .
Assignees
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Classifications
Halogens or compounds thereof · CPC title
- C08G65/2654Primary
Aluminium or boron; Compounds thereof · CPC title
containing only one alkylene bisphenyl group · CPC title
being toluene diisocyanate including isomer mixtures · CPC title
rigid · CPC title
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- What does patent US11001669B2 cover?
- A Lewis acid polymerization catalyst has a general formula M(R 1 ) 1 (R 2 ) 1 (R 3 ) 1 (R 4 ) 0 or 1 , whereas M is boron, R 1 , R 2 , R 3 , and R 4 are each independent, R 1 is a 3,5-bis(trifluoromethyl)-substituted phenyl group, R 2 is the 3,5-bis(trifluoromethyl)-substituted phenyl group or a first fluoro-substituted phenyl group selected from Set 1 structures, R 3 is independently a sec…
- Who is the assignee on this patent?
- Dow Global Technologies Llc
- What technology area does this patent fall under?
- Primary CPC classification C08G65/2654. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 11 2021 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).