Catalytic system for the stereospecific polymerization of dienes and use thereof in a process for synthesizing diene polymers
US-12583949-B2 · Mar 24, 2026 · US
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Lithium being present, e.g. butyllithium + sodiumphenoxide
Lithium being present, e.g. butyllithium + sodiumphenoxide · 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 | C08F4/565 |
| Official title | {Lithium being present, e.g. butyllithium + sodiumphenoxide} |
| Display label | Lithium being present, e.g. butyllithium + sodiumphenoxide |
| Total patents | 13 |
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 |
| 2017 | 2 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Liquid polybutadiene, and preparation method therefor and application thereof, composition, polymer coating, adhesive, and crosslinking agent
US-12516183-B2 · Jan 6, 2026 · US
Block copolymer, method for preparing the same, and asphalt composition comprising the same
US-12344692-B2 · Jul 1, 2025 · US
Rubber composition and molded article manufactured therefrom
US-12168710-B2 · Dec 17, 2024 · US
Catalytic system for the stereospecific polymerization of dienes and use thereof in a process for synthesizing diene polymers
US-2023272128-A1 · Aug 31, 2023 · US
Liquid polybutadiene, and preparation method therefor and application thereof, composition, polymer coating, adhesive, and crosslinking agent
US-2023192997-A1 · Jun 22, 2023 · US
Block Copolymer, Method for Preparting the Same, and Asphalt Composition Comprising the Same
US-2022235166-A1 · Jul 28, 2022 · US
Rubber Composition and Molded Article Manufactured Therefrom
US-2021395408-A1 · Dec 23, 2021 · US
Dilithium initiators
US-9732179-B2 · Aug 15, 2017 · US
Anionic polymerization initiator and method for preparing conjugated diene-based polymer using same
US-9708420-B2 · Jul 18, 2017 · US
Dilithium initiators
US-2016376395-A1 · Dec 29, 2016 · US
Method for producing (meth)acrylate copolymer
US-9051398-B2 · Jun 9, 2015 · US
Method for producing (meth)acrylate copolymer
US-2015038658-A1 · Feb 5, 2015 · US