Reaction system for preparing polymer polyol and method for preparing polymer polyol
US-12565557-B2 · Mar 3, 2026 · US
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onto unsaturated polymers
onto unsaturated polymers · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C08G18/635 |
| Official title | {onto unsaturated polymers} |
| Display label | onto unsaturated polymers |
| Total patents | 23 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2018 | 3 |
| 2021 | 2 |
| 2022 | 6 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Polyurethane foam-forming compositions and opened-cell flexible foams produced therefrom
US-2025320326-A1 · Oct 16, 2025 · US
Processes and production plants for producing polymer polyols
US-12247096-B2 · Mar 11, 2025 · US
Polyethers and their use in the production of flexible polyurethane foams
US-12116449-B2 · Oct 15, 2024 · US
Processes and production plants for producing polymer polyols
US-2024199790-A1 · Jun 20, 2024 · US
Processes and production plants for producing polymer polyols
US-11952454-B2 · Apr 9, 2024 · US
Macromonomeric stabilizer, preparation method thereof, and method for preparing polymeric polyol
US-11795265-B2 · Oct 24, 2023 · US
Reaction system for preparing polymer polyol and method for preparing polymer polyol
US-2023151134-A1 · May 18, 2023 · US
Processes and production plants for producing polymer polyols
US-2023122773-A1 · Apr 20, 2023 · US
Polyethers and their use in the production of flexible polyurethane foams
US-2022267506-A1 · Aug 25, 2022 · US
Preformed stabilizers with improved stability
US-11421063-B2 · Aug 23, 2022 · US
Process for preparing polymer polyols
US-11319401-B1 · May 3, 2022 · US
Process for preparing polymer polyols
US-2022127410-A1 · Apr 28, 2022 · US
Acrylic polymers, aqueous polymeric dispersions prepared therefrom, and curable film-forming compositions prepared therefrom
US-11261265-B2 · Mar 1, 2022 · US
Macromonomeric stabilizer, preparation method thereof, and method for preparing polymeric polyol
US-2022017682-A1 · Jan 20, 2022 · US
Preformed stabilizers with improved stability
US-2021108015-A1 · Apr 15, 2021 · US
Acrylic polymers, aqueous polymeric dispersions prepared therefrom, and curable film-forming compositions prepared therefrom
US-2021024661-A1 · Jan 28, 2021 · US
Window for display device and method of manufacturing the same and display device
US-2018231692-A1 · Aug 16, 2018 · US
Polymer polyol quality
US-10040903-B2 · Aug 7, 2018 · US
Polymer polyol quality
US-2018072846-A1 · Mar 15, 2018 · US