C08F 297/042
Using a polyfunctional initiator
Official title: {using a polyfunctional initiator}
C08F297/042 (Using a polyfunctional initiator) appears on 43 US grants and 22 published applications in this corpus.
Search patents in C08F- Granted patents
- 43
- Published applications
- 22
- Assignees
- 30
- Inventors
- 94
- Latest grant
- 24 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
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| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 4 | 3 |
| 2003 | 1 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 3 |
| 2017 | 3 | 0 |
| 2018 | 1 | 2 |
| 2019 | 0 | 1 |
| 2020 | 2 | 3 |
| 2021 | 2 | 2 |
| 2022 | 0 | 1 |
| 2023 | 4 | 2 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Polar modifier systems for high vinyl block copolymerization24 Dec 2024US 12,173,106 B2Dynasol Elastómeros, S.A. de C.V.
- Copolymer, method of preparing the same, and rubber composition including the same21 Nov 2023US 11,820,847 B2Korea Kumho Petrochemical Co., Ltd.
- Sulfonated block copolymers and uses thereof18 Apr 2023US 11,629,215 B2Kraton Corporation
- Block copolymers and uses thereof17 Jan 2023US 11,555,085 B2Kraton Polymers LLC
- Polar modifier systems for high vinyl block copolymerization3 Jan 2023US 11,542,355 B2Dynasol Elastómeros, S.A. de C.V.
- Thermoplastic Elastomers of High Vinyl Block Copolymer Compositions9 Jan 2025US 2025/0011519 A1Dynasol Elastómeros, S.A. de C.V.
- Copolymer, method of preparing the same, and rubber composition including the same22 Jun 2023US 2023/0192934 A1Korea Kumho Petrochemical Co., Ltd.
- Polar Modifier Systems for High Vinyl Block Copolymerization30 Mar 2023US 2023/0094374 A1Dynasol Elastómeros, S.A. de C.V.
- Modified Diene Copolymers and Their Use15 Dec 2022US 2022/0396654 A1Dynasol Elastómeros, S.A. de C.V.
- Block copolymer and method of producing same, hydrogenated block copolymer, polymer composition, and shaped product29 Jul 2021US 2021/0230338 A1Zeon Corporation
Most cited
By later US patents
- Increased throughput in the manufacture of anionic polymers by reduction in polymers by reduction in polymer cement viscosity through the addition of metal alkyls54US 6,492,469 B2KRATON Polymers U. S. LLC · 2002
- Increased throughput in the manufacture of anionic polymers by reduction in polymer cement viscosity through the addition of metal alkyls24US 6,391,981 B1KRATON Polymers U. S. LLC · 2002
- Amine containing initiator system for anionic polymerization18US 4,960,842 AThe Dow Chemical Company · 1990
- Star-shaped polymers for improved tire treads15US 4,553,578 AGenCorp Inc. · 1985
- Tapered block copolymers15US 5,047,484 AThe Dow Chemical Company · 1991