Catalyst system containing a metathesis catalyst and at least one phenolic compound and a process for metathesis of nitrile-butadiene rubber (NBR) using the catalyst system
US-11673130-B2 · Jun 13, 2023 · US
This page is not indexed by search engines while we improve data quality.
Chemistry & Metallurgy
Chemistry & Metallurgy · 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 | C08C2019/09 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 23 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2017 | 4 |
| 2018 | 4 |
| 2019 | 2 |
| 2020 | 1 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for producing nitrile rubbers using ruthenium complex catalysts
US-11407843-B2 · Aug 9, 2022 · US
Use of catalysts for the metathesis of nitrile rubber
US-11311868-B2 · Apr 26, 2022 · US
Catalyst system containing a metathesis catalyst and at least one phenolic compound and a process for metathesis of nitrile-butadiene rubber (nbr) using the catalyst system
US-2022032279-A1 · Feb 3, 2022 · US
Use of ruthenium and osmium catalysts for the metathesis of nitrile rubber
US-11203679-B2 · Dec 21, 2021 · US
Use of catalysts for the metathesis of nitrile rubber
US-2021260568-A1 · Aug 26, 2021 · US
Use of ruthenium and osmium catalysts for the metathesis of nitrile rubber
US-2021130590-A1 · May 6, 2021 · US
Process for producing nitrile rubbers using ruthenium complex catalysts
US-2020332030-A1 · Oct 22, 2020 · US
Catalyst compositions and their use for hydrogenation of nitrile rubber
US-10508156-B2 · Dec 17, 2019 · US
Catalyst compositions and their use for hydrogenation of nitrile rubber
US-10500578-B2 · Dec 10, 2019 · US
Catalyst compositions and their use for hydrogenation of nitrile rubber
US-2018297022-A1 · Oct 18, 2018 · US
Catalyst compositions and their use for hydrogenation of nitrile rubber
US-2018223005-A1 · Aug 9, 2018 · US
Functionalized nitrile rubbers and the production thereof
US-10011664-B2 · Jul 3, 2018 · US
Ruthenium-based complexes, their preparation and use as catalysts
US-9920086-B2 · Mar 20, 2018 · US
Method for producing functionalised telechelic oligomers
US-9845382-B2 · Dec 19, 2017 · US
Functionalised nitrile rubbers and the production thereof
US-2017190806-A1 · Jul 6, 2017 · US
Nitrile group-containing copolymer rubber, cross-linkable rubber composition, and cross-linked rubber
US-9683067-B2 · Jun 20, 2017 · US
Process for degrading nitrile rubbers in the presence of catalysts having an increased activity
US-9593168-B2 · Mar 14, 2017 · US
Process for the preparation of low molecular weight hydrogenated nitrile rubber
US-9150669-B2 · Oct 6, 2015 · US
Process for degrading nitrile rubbers in the presence of catalysts having an increased activity
US-9115219-B2 · Aug 25, 2015 · US