Methods for forming stereospecific, polar functionalized polypropylene
US-11840624-B2 · Dec 12, 2023 · US
by reaction with nitrogen-containing compounds, e.g. by nitration
by reaction with nitrogen-containing compounds, e.g. by nitration · 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 | C08L23/36 |
| Official title | by reaction with nitrogen-containing compounds, e.g. by nitration |
| Display label | by reaction with nitrogen-containing compounds, e.g. by nitration |
| Total patents | 70 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 8 |
| 2017 | 8 |
| 2018 | 8 |
| 2019 | 6 |
| 2020 | 5 |
| 2021 | 7 |
| 2022 | 4 |
| 2023 | 6 |
| 2024 | 4 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Group 5 metal complexes for producing amine-functionalized polyolefins
US-11795315-B2 · Oct 24, 2023 · US
Compositions for polyolefin foams
US-2023174761-A1 · Jun 8, 2023 · US
Amine functionalized polymers and methods of preparation
US-11555107-B2 · Jan 17, 2023 · US
Group 5 metal complexes for producing amine-funtionalized polyolefins
US-2022363786-A1 · Nov 17, 2022 · US
Thermoplastic Vulcanizate Compositions
US-2022251362-A1 · Aug 11, 2022 · US
Thermoplastic vulcanizate compositions
US-11312847-B2 · Apr 26, 2022 · US
Rubber composition
US-2022056251-A1 · Feb 24, 2022 · US
Compositions for polyolefin foams
US-2021388194-A1 · Dec 16, 2021 · US
Compositions for polyolefin foams
US-11124637-B2 · Sep 21, 2021 · US
Novel amine functionalized polymers and methods of preparation
US-2021214542-A1 · Jul 15, 2021 · US
Self-assembled propylene-based compositions and methods of production thereof
US-11034819-B2 · Jun 15, 2021 · US
Methods for forming stereospecific, polar functionalized polypropylene
US-2021171753-A1 · Jun 10, 2021 · US
Flame-retardant resin composition, and insulating wire, metal cable, optical fiber cable and molded article using the same
US-11028257-B2 · Jun 8, 2021 · US
Thermoplastic Vulcanizate Compositions
US-2021040300-A1 · Feb 11, 2021 · US
Blends of oligopeptide terminal polyisobutylene or polystyrene
US-2020347217-A1 · Nov 5, 2020 · US
Mooney viscosity stable brominated elastomers
US-10781295-B2 · Sep 22, 2020 · US
Blends of oligopeptide terminal polyisobutylene or polystyrene
US-10752765-B2 · Aug 25, 2020 · US
Method for making heterophasic polymer compositions
US-10590270-B2 · Mar 17, 2020 · US
Flame-retardant resin composition, and insulating wire, metal cable, optical fiber cable and molded article using the same
US-2020062937-A1 · Feb 27, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08L23/36?
- CPC C08L23/36 is the Cooperative Patent Classification code for “by reaction with nitrogen-containing compounds, e.g. by nitration.”
- How many patents are filed under CPC C08L23/36 (by reaction with nitrogen-containing compounds, e.g. by nitration)?
- Our database includes 70 publications tagged with this CPC code.
- Is patent activity under CPC C08L23/36 growing?
- Publication counts under this code: 4 in 2024 vs 4 in 2025 (latest complete years).