C08J 2423/22
Copolymers of isobutene
Official title: Copolymers of isobutene; butyl rubber
C08J2423/22 (Copolymers of isobutene) appears on 23 US grants and 45 published applications in this corpus.
Search patents in C08J- Granted patents
- 23
- Published applications
- 45
- Assignees
- 33
- Inventors
- 124
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 1 |
| 2016 | 1 | 3 |
| 2017 | 1 | 4 |
| 2018 | 1 | 7 |
| 2019 | 2 | 7 |
| 2020 | 5 | 5 |
| 2021 | 3 | 4 |
| 2022 | 2 | 5 |
| 2023 | 2 | 2 |
| 2024 | 3 | 3 |
| 2025 | 0 | 1 |
| 2026 | 3 | 0 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Encapsulation film22 Sep 2026US 12,742,064 B2LG Chem.Ltd.
- Transferable maskants suitable for chemical processing18 Aug 2026US 12,709,667 B2Quaker Chemical Corporation
- Aqueous dispersion of polyisobutylene and polyolefin particles9 Jun 2026US 12,649,850 B2Dow Global Technologies LLC
- Laminate, printed matter, aqueous dispersion liquid, and laminate manufacturing method12 Nov 2024US 12,139,588 B2Yupo Corporation
- Polyolefin-based resin film and laminate including the same24 Sep 2024US 12,098,269 B2Toyobo Co., Ltd.
- Methods of preparing a composite having resins6 Feb 2025US 2025/0043086 A1Beyond Lotus LLC
- Aqueous dispersion of polyisobutylene and polyolefin particles12 Sep 2024US 2024/0301188 A1Dow Global Technologies LLC
- Laminate, printed matter, aqueous dispersion liquid, and laminate manufacturing method6 Jun 2024US 2024/0182658 A1Yupo Corporation
- Transferable Maskants Suitable for Chemical Processing23 May 2024US 2024/0166829 A1Ac Products, Inc.
- Encapsulation film22 Jun 2023US 2023/0192980 A1LG Chem.Ltd.
Most cited
By later US patents
- Masterbatch composition, method of using, and rubber composition3US 9,382,407 B23M Innovative Properties Company · 2016
- Microporous sheet product and methods for making and using the same2US 10,829,600 B22020
- Free standing film2US 10,982,175 B2Dow Global Technologies LLC · 2021
- Microporous membrane of polyethylene-based composite material and preparation method thereof1US 10,153,472 B2Tianjin Dg Membrane Technology Co., Ltd. · 2018
- Elastomeric film-forming compositions and articles made from the elastomeric film1US 10,344,158 B2Skinprotect Corporation Sdn Bhd · 2019