Production method for fluoropolymer, surfactant for polymerization, and use of surfactant
US12012470B2 · kind B2 · utility
0Cited by
1References
19Claims
0Family size
Assignee
Inventors
- Taketo Kato
- Satoru Yoneda
- Manabu Fujisawa
- Kazuya Asano
- Takahiro Kitahara
- Masahiro Higashi
- Akiyoshi Yamauchi
- Sumi Ishihara
- Yosuke KISHIKAWA
- Shinnosuke Nitta
- Marina NAKANO
- Hirotoshi Yoshida
- Yoshinori Nanba
- Kengo Ito
- Chiaki OKUI
- Hirokazu Aoyama
- Masamichi Sukegawa
- Taku Yamanaka
- Yuuji Tanaka
- Kenji Ichikawa
- Yohei FUJIMOTO
- Hiroyuki Sato
Key dates
| Filing date | Oct 26, 2022 |
| Grant date | Jun 18, 2024 |
| Priority date | — |
| Expiry date | Oct 26, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/019
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition including a fluoropolymer and substantially free from a compound represented by the following formula (3): (H—(CF2)8—SO3)qM2, wherein M2 is H, a metal atom, NR54, imidazolium optionally containing a substituent, pyridinium optionally containing a substituent, or phosphonium optionally containing a substituent; R5s are each H or an organic group and are the same as or different from each other; and q is 1 or 2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.