C08F 2500/02
Low molecular weight
Official title: Low molecular weight, e.g. <100,000 Da.
C08F2500/02 (Low molecular weight) appears on 123 US grants and 150 published applications in this corpus.
Search patents in C08F- Granted patents
- 123
- Published applications
- 150
- Assignees
- 83
- Inventors
- 410
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2016 | 0 | 9 |
| 2017 | 4 | 12 |
| 2018 | 9 | 53 |
| 2019 | 30 | 45 |
| 2020 | 31 | 8 |
| 2021 | 28 | 8 |
| 2022 | 9 | 4 |
| 2023 | 7 | 4 |
| 2024 | 1 | 4 |
| 2025 | 3 | 3 |
| 2026 | 1 | 0 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Process and catalysts for hydrogen mediated anionic polymerization of conjugated dienes and liquid polymers thereof29 Sep 2026US 12,747,315 B2Albemarle Corporation
- Olefin resin, crosslinked product thereof, and production methods thereof15 Apr 2025US 12,275,812 B2Mitsui Chemicals, Inc.
- Compositions containing low molecular weight propylene-based polymers and an olefin multi-block copolymer1 Apr 2025US 12,264,233 B2Dow Global Technologies LLC
- Process and catalyst for hydrogen mediated saline hydride initiated anionic chain transfer polymerization25 Feb 2025US 12,234,304 B2Albemarle Corporation
- Method for producing hydrocarbon resins and hydrogenation products thereof3 Sep 2024US 12,077,624 B2Rain Carbon Germany GmbH
- Medium molecular polyisobutene with a certain distribution of double bond isomers5 Jun 2025US 2025/0179224 A1BASF SE
- Process and catalyst for hydrogen mediated saline hydride initiated anionic chain transfer polymerization5 Jun 2025US 2025/0179225 A1Albemarle Corporation
- Medium molecular polyisobutene with a high content of certain double bond isomers8 May 2025US 2025/0145742 A1BASF SE
- Use of proton-form zeolite catalyst to produce light-polyisobutylene23 May 2024US 2024/0166776 A1Braskem S/A
- Polymer blends14 Mar 2024US 2024/0084071 A1Zeus Co., Ltd.
Most cited
By later US patents
- Dual catalyst system for producing LLDPE copolymers with a narrow molecular weight distribution and improved processability35US 10,000,594 B2Chevron Phillips Chemical Company LP · 2018
- Dual catalyst system for producing LLDPE copolymers with a narrow molecular weight distribution and improved processability26US 10,442,881 B2Chevron Phillips Chemical Company LP · 2019
- Hydrocarbon polymer additives and compositions prepared thereof11US 10,752,769 B2ExxonMobil Chemical Patents Inc. · 2020
- Producing polyolefin products8US 9,879,106 B2Univation Technologies, LLC · 2018
- Producing polyolefin products8US 9,902,790 B2Univation Technologies, LLC · 2018