Ai assisted cyclic carbonate monomer synthesis
US-2023009671-A1 · Jan 12, 2023 · US
Cyclopropenimines for activation of carbon dioxide
US12478951B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12478951-B2 |
| Application number | US-202217821074-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 19, 2022 |
| Priority date | Aug 19, 2022 |
| Publication date | Nov 25, 2025 |
| Grant date | Nov 25, 2025 |
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Abstract
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A process, composition, and apparatus for carbon dioxide (CO 2 ) conversion are disclosed. The CO 2 conversion comprises reacting CO 2 with a cyclopropenimine (CPI) to activate the CO 2 and transferring the activated CO 2 to generate a product of the transferring. The transferring also generates a conjugate acid of the CPI. The process further comprises regenerating the CPI from the conjugate acid.
First claim
Opening claim text (preview).
What is claimed is: 1 . A process of carbon dioxide (CO 2 ) conversion, comprising: reacting carbon dioxide (CO 2 ) with a cyclopropenimine (CPI) to activate the CO 2 ; transferring the activated CO 2 to generate a product of the transferring and a conjugate acid of the CPI; and recovering the CPI from the conjugate acid. 2 . The process of claim 1 , wherein the recovering comprises adding an aqueous base to a solution of the conjugate acid. 3 . The process of claim 2 , wherein the solution of the conjugate acid comprises an organic solvent. 4 . The process of claim 1 , further comprising reacting additional CO 2 with the recovered CPI. 5 . The process of claim 1 , wherein the CO 2 is obtained from air. 6 . The process of claim 1 , wherein the product of the transferring comprises a carbonate. 7 . The process of claim 1 , wherein the product of the transferring comprises a species selected from the group consisting of a polycarbonate, a polyurethane, and a metal carbonate. 8 . The process of claim 1 , wherein the CPI is incorporated into a polymeric material.
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Classifications
with gas-liquid contact · CPC title
Carbon dioxide · CPC title
Ammonium compounds · CPC title
Regeneration, reactivation or recycling of reactants · CPC title
Polluted air · CPC title
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- What does patent US12478951B2 cover?
- A process, composition, and apparatus for carbon dioxide (CO 2 ) conversion are disclosed. The CO 2 conversion comprises reacting CO 2 with a cyclopropenimine (CPI) to activate the CO 2 and transferring the activated CO 2 to generate a product of the transferring. The transferring also generates a conjugate acid of the CPI. The process further comprises regenerating the CPI from the conjuga…
- Who is the assignee on this patent?
- IBM, Univ Columbia
- What technology area does this patent fall under?
- Primary CPC classification B01J20/3425. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Nov 25 2025 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).