Ethylenically unsaturated macromers produced from a residue of isocyanate manufacturing, related preformed stabilizers, polymer polyols, foam-forming compositions and foams
US11414544B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Oct 26, 2020 |
| Grant date | Aug 16, 2022 |
| Priority date | — |
| Expiry date | Feb 12, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed are ethylenically unsaturated macromers produced using a residue of an isocyanate manufacturing process. Also disclosed are preformed stabilizers produced using such macromers, polymer polyols produced using such preformed stabilizers, foam-forming compositions produced using such polymer polyols, and foam produced using such compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.