-
1.发明公开
公开(公告)号：EP3960773A1
公开(公告)日：2022-03-02
申请号：EP20795349.8
申请日：2020-04-27
IPC分类号： C08F6/04 , C08F14/18 , C08F114/26 , C08F259/08 , C08F214/26 , C08F2/20 , C08F2/44
摘要： The present disclosure provides a method for producing a fluoropolymer aqueous dispersion, the method comprising a step A of performing ultrafiltration, microfiltration, or dialysis membrane treatment, or a combination thereof on a pretreatment aqueous dispersion containing a fluoropolymer obtained by polymerization in the presence of a polymer (I) comprising a polymerized unit (I) derived from a monomer represented by the following general formula (I), with the proviso that the fluoropolymer is other than the polymer (I):
CX 1 X 3 =CX 2 R(-CZ 1 Z 2 -A 0 ) m (I)
wherein X 1 and X 3 are each independently F, Cl, H, or CF 3 ; X 2 is H, F, an alkyl group, or a fluorine-containing alkyl group; A 0 is an anionic group; R is a linking group; Z 1 and Z 2 are each independently H, F, an alkyl group, or a fluorine-containing alkyl group; and m is an integer of 1 or more.-
公开(公告)号：EP3885406A1
公开(公告)日：2021-09-29
申请号：EP19886627.9
申请日：2019-11-19
发明人： NANBA, Yoshinori , ICHIKAWA, Kenji , FUJIMOTO, Yohei , YOSHIDA, Hirotoshi , SATO, Hiroyuki , KATO, Taketo , ITO, Kengo , YAMANAKA, Taku
IPC分类号： C08L27/18 , C08L101/02 , C08F2/44 , C08J5/18
摘要： Provided is a composition comprising a polytetrafluoroethylene and a polymer (I) containing a polymerization unit (I) based on a monomer represented by the following general formula (I), the composition having a standard specific gravity of 2.200 or less:
CX 1 X 3 =CX 2 R (-CZ 1 Z 2 -A 0 ) m (I)
wherein X 1 and X 3 are each independently F, Cl, H, or CF 3 ; A 0 is an anionic group; X 2 is H, F, an alkyl group, or a fluorine-containing alkyl group; R is a linking group; Z 1 and Z 2 are each independently H, F, an alkyl group, or a fluorine-containing alkyl group; and m is an integer of 1 or more.-
3.发明公开
公开(公告)号：EP4257638A3
公开(公告)日：2023-12-13
申请号：EP23189437.9
申请日：2018-03-30
发明人： KATO, Taketo , YONEDA, Satoru , FUJISAWA, Manabu , ASANO, Kazuya , KITAHARA, Takahiro , HIGASHI, Masahiro , YAMAUCHI, Akiyoshi , ISHIHARA, Sumi , KISHIKAWA, Yosuke , NITTA, Shinnosuke , NAKANO, Marina , YOSHIDA, Hirotoshi , NANBA, Yoshinori , ITO, Kengo , OKUI, Chiaki , AOYAMA, Hirokazu , SUKEGAWA, Masamichi , YAMANAKA, Taku , TANAKA, Yuuji , ICHIKAWA, Kenji , FUJIMOTO, Yohei , SATO, Hiroyuki
摘要： The invention aims to provide a novel method for producing a fluoropolymer. The method for producing a fluoropolymer of the invention includes polymerizing a fluoromonomer in an aqueous medium in the presence of a surfactant to provide a fluoropolymer. The surfactant includes at least one selected from the group consisting of a surfactant represented by R 1a -CO-R 2 a -CO-R 3 a -A a and a surfactant represented by R 1b -CO-(CR 2b 2 ) n -(OR 3b ) p -(CR 4b 2 ) q -L-Ab.
-
4.发明公开
公开(公告)号：EP4257638A2
公开(公告)日：2023-10-11
申请号：EP23189437.9
申请日：2018-03-30
发明人： KATO, Taketo , YONEDA, Satoru , FUJISAWA, Manabu , ASANO, Kazuya , KITAHARA, Takahiro , HIGASHI, Masahiro , YAMAUCHI, Akiyoshi , ISHIHARA, Sumi , KISHIKAWA, Yosuke , NITTA, Shinnosuke , NAKANO, Marina , YOSHIDA, Hirotoshi , NANBA, Yoshinori , ITO, Kengo , OKUI, Chiaki , AOYAMA, Hirokazu , SUKEGAWA, Masamichi , YAMANAKA, Taku , TANAKA, Yuuji , ICHIKAWA, Kenji , FUJIMOTO, Yohei , SATO, Hiroyuki
IPC分类号： C08K5/098
摘要： The invention aims to provide a novel method for producing a fluoropolymer. The method for producing a fluoropolymer of the invention includes polymerizing a fluoromonomer in an aqueous medium in the presence of a surfactant to provide a fluoropolymer. The surfactant includes at least one selected from the group consisting of a surfactant represented by R 1a -CO-R 2 a -CO-R 3 a -A a and a surfactant represented by R 1b -CO-(CR 2b 2 ) n -(OR 3b ) p -(CR 4b 2 ) q -L-Ab.
-
公开(公告)号：EP4317214A3
公开(公告)日：2024-05-01
申请号：EP23216669.4
申请日：2019-03-01
发明人： NANBA, Yoshinori , ICHIKAWA, Kenji , FUJIMOTO, Yohei , YOSHIDA, Hirotoshi , SATO, Hiroyuki , KATO, Taketo , ITO, Kengo , ISHIHARA, Sumi , HIGASHI, Masahiro , YONEDA, Satoru , AOYAMA, Hirokazu , SUKEGAWA, Masamichi , KISHIKAWA, Yosuke , TAIRA, Takahiro , OKUI, Chiaki , YAMANAKA, Taku
IPC分类号： C08F2/44 , B29C55/00 , C08F2/24 , C08F14/18 , C08F261/06 , C08L27/12 , C08F259/08 , C08F2/26 , C08F214/26 , C08L27/18 , C08F116/14
CPC分类号： C08L27/12 , C08F259/08 , B29C55/16 , B29C55/18 , B29C55/06 , C08L27/18 , C08F261/06 , C08F2/26 , C08F116/14 , C08F114/26 , C08F14/26 , C08F214/26
摘要： An object of the present disclosure is to provide a novel method for producing a fluoropolymer. The present disclosure relates to a method for producing a fluoropolymer, comprising polymerizing a fluoromonomer in an aqueous medium in the presence of a polymer (1) to provide a fluoropolymer, the polymer (1) comprising a polymerized unit (1) derived from a monomer represented by the following general formula (1): CX2=CY(-CZ2-O-Rf-A) (1)
wherein X is the same or different and is -H or -F; Y is -H, -F, an alkyl group, or a fluorine-containing alkyl group; Z is the same or different and is -H, -F, an alkyl group, or a fluoroalkyl group; Rf is a fluorine-containing alkylene group having 1 to 40 carbon atoms or a fluorine-containing alkylene group having 2 to 100 carbon atoms and having an ether bond; and A is -COOM, - SO3M, or -OSO3M, wherein M is -H, a metal atom, -NR74, imidazolium optionally having a substituent, pyridinium optionally having a substituent, or phosphonium optionally having a substituent, wherein R7 is H or an organic group, with the proviso that at least one of X, Y, and Z contains a fluorine atom.-
6.发明公开
公开(公告)号：EP4006063A1
公开(公告)日：2022-06-01
申请号：EP20844000.8
申请日：2020-07-27
摘要： Provided is a method for producing a fluoropolymer, including a polymerization step of polymerizing a fluoromonomer in an aqueous medium having a pH of 4.0 or more in the presence of a hydrocarbon surfactant and a polymerization initiator to obtain a fluoropolymer.
-
公开(公告)号：EP3960774A1
公开(公告)日：2022-03-02
申请号：EP20795569.1
申请日：2020-04-27
发明人： YONEDA, Satoru , HIGASHI, Masahiro , ISHIHARA, Sumi , YOSHIDA, Hirotoshi , FUJIMOTO, Yohei , KISHIKAWA, Yosuke
摘要： A method for producing a fluoropolymer aqueous dispersion, comprising a step A of subjecting a pre-treatment aqueous dispersion containing a fluoropolymer obtained by polymerization in the presence of a hydrocarbon surfactant to ultrafiltration, microfiltration, or dialysis membrane treatment, or a combination thereof.
-
公开(公告)号：EP3885372A1
公开(公告)日：2021-09-29
申请号：EP19888133.6
申请日：2019-11-19
发明人： NANBA, Yoshinori , ICHIKAWA, Kenji , FUJIMOTO, Yohei , YOSHIDA, Hirotoshi , SATO, Hiroyuki , KATO, Taketo , ITO, Kengo , YAMANAKA, Taku
IPC分类号： C08F2/44 , C08F214/18 , C08F259/08
摘要： Provided is a method for producing modified polytetrafluoroethylene including:
polymerizing tetrafluoroethylene and a modifying monomer in an aqueous medium in the presence of a polymer (I) containing a polymerization unit (I) based on a monomer represented by the following general formula (I) to obtain a modified polytetrafluoroethylene:
CX 1 X 3 =CX 2 R(-CZ 1 Z 2 -A 0 ) m (I)
wherein X 1 and X 3 are each independently F, Cl, H, or CF 3 ; X 2 is H, F, an alkyl group, or a fluorine-containing alkyl group; A 0 is an anionic group; R is a linking group; Z 1 and Z 2 are each independently H, F, an alkyl group, or a fluorine-containing alkyl group; and m is an integer of 1 or more.-
公开(公告)号：EP4317214A2
公开(公告)日：2024-02-07
申请号：EP23216669.4
申请日：2019-03-01
发明人： NANBA, Yoshinori , ICHIKAWA, Kenji , FUJIMOTO, Yohei , YOSHIDA, Hirotoshi , SATO, Hiroyuki , KATO, Taketo , ITO, Kengo , ISHIHARA, Sumi , HIGASHI, Masahiro , YONEDA, Satoru , AOYAMA, Hirokazu , SUKEGAWA, Masamichi , KISHIKAWA, Yosuke , TAIRA, Takahiro , OKUI, Chiaki , YAMANAKA, Taku
IPC分类号： C08F116/14
摘要： An object of the present disclosure is to provide a novel method for producing a fluoropolymer. The present disclosure relates to a method for producing a fluoropolymer, comprising polymerizing a fluoromonomer in an aqueous medium in the presence of a polymer (1) to provide a fluoropolymer, the polymer (1) comprising a polymerized unit (1) derived from a monomer represented by the following general formula (1): CX 2 =CY(-CZ 2 -O-Rf-A) (1)
wherein X is the same or different and is -H or -F; Y is -H, -F, an alkyl group, or a fluorine-containing alkyl group; Z is the same or different and is -H, -F, an alkyl group, or a fluoroalkyl group; Rf is a fluorine-containing alkylene group having 1 to 40 carbon atoms or a fluorine-containing alkylene group having 2 to 100 carbon atoms and having an ether bond; and A is -COOM, - SO 3 M, or -OSO 3 M, wherein M is -H, a metal atom, -NR 7 4 , imidazolium optionally having a substituent, pyridinium optionally having a substituent, or phosphonium optionally having a substituent, wherein R 7 is H or an organic group, with the proviso that at least one of X, Y, and Z contains a fluorine atom.-
公开(公告)号：EP4063405A1
公开(公告)日：2022-09-28
申请号：EP20890067.0
申请日：2020-11-19
IPC分类号： C08F14/26 , C08F259/08 , C08F2/38 , C08F2/44
摘要： Provided is a method for producing polytetrafluoroethylene, comprising polymerizing tetrafluoroethylene in an aqueous medium in the presence of a nucleating agent and a polymer (I) containing a polymerization unit (I) based on a monomer represented by the general formula (I) to obtain polytetrafluoroethylene:
CX 1 X 3 =CX 2 R(-CZ 1 Z 2 -A 0 ) m (I)
wherein X 1 and X 3 are each independently F, Cl, H, or CF 3 ; X 2 is H, F, an alkyl group, or a fluorine-containing alkyl group; A 0 is an anionic group; R is a linking group; Z 1 and Z 2 are each independently H, F, an alkyl group, or a fluorine-containing alkyl group; and m is an integer of 1 or more.
-
-
-
-
-
-
-
-
-
搜索结果
21 条记录 (耗时 0.181 秒)
