Reaction system for preparing polymer polyol and method for preparing polymer polyol
US-12565557-B2 · Mar 3, 2026 · US
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with compounds of C08G18/3225 or C08G18/3271 or polyamines of C08G18/38
with compounds of C08G18/3225 or C08G18/3271 or polyamines of C08G18/38 · 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 | C08G18/657 |
| Official title | {with compounds of C08G18/3225 or C08G18/3271 or polyamines of C08G18/38} |
| Display label | with compounds of C08G18/3225 or C08G18/3271 or polyamines of C08G18/38 |
| Total patents | 20 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 4 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 1 |
| 2021 | 2 |
| 2023 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Reaction system for preparing polymer polyol and method for preparing polymer polyol
US-2023151134-A1 · May 18, 2023 · US
Reactive amine catalysts for polyurethane applications
US-11208519-B2 · Dec 28, 2021 · US
Polyurethane foam system
US-2021017324-A1 · Jan 21, 2021 · US
Vinyl chloride resin composition, vinyl chloride resin molded product, and laminate
US-10640625-B2 · May 5, 2020 · US
Solvent-free polyurethane liquid membrane
US-10442956-B2 · Oct 15, 2019 · US
Tertiary amine composition and method for making the composition
US-10364315-B2 · Jul 30, 2019 · US
Reactive amine catalysts for polyurethane applications
US-2019048121-A1 · Feb 14, 2019 · US
Reactive amine catalysts for polyurethane applications
US-10100141-B2 · Oct 16, 2018 · US
Polyol composition for producing flexible polyurethane foam and flexible polyurethane foam
US-9914813-B2 · Mar 13, 2018 · US
Silanol-functionalized compounds for the preparation of polyurethane foams
US-9856355-B2 · Jan 2, 2018 · US
Tertiary amine composition and method for making the composition
US-2017313805-A1 · Nov 2, 2017 · US
Tertiary amine composition and method for making the composition
US-9708436-B2 · Jul 18, 2017 · US
Vinyl chloride resin composition, vinyl chloride resin molded product, and laminate
US-2017009055-A1 · Jan 12, 2017 · US
Solvent-free polyurethane liquid membrane
US-2017002231-A1 · Jan 5, 2017 · US
Reactive amine catalysts for polyurethane applications
US-2016347901-A1 · Dec 1, 2016 · US
Polyol composition for producing flexible polyurethane foam and flexible polyurethane foam
US-2016304690-A1 · Oct 20, 2016 · US
Tertiary amine composition and method for making the composition
US-2016222153-A1 · Aug 4, 2016 · US
Tertiary amine composition and method for making the composition
US-9273175-B2 · Mar 1, 2016 · US
Polybutadiene modified polymer polyols, foams prepared from polybutadiene modified polymer polyols, and processes for the production thereof
US-9163099-B2 · Oct 20, 2015 · US