HydroFluoro olefin propellant in a polyurethane foam composition
US12258459B2 · kind B2 · utility
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3References
2Claims
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Key dates
| Filing date | Sep 10, 2021 |
| Grant date | Mar 25, 2025 |
| Priority date | — |
| Expiry date | Sep 10, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/03
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process and composition is described for the inclusion of polyether polyols in concentrations greater than 10% loading on the B-side formulation with a catalyst package less than 1% loading on the B-side formulation. In one specific example, the use of glycerin as a fluorine ion scavenger is utilized to improve performance of the polyurethane systems through a twelve-month shelf life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.