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公开(公告)号：US20240034901A1
公开(公告)日：2024-02-01
申请号：US18464353
申请日：2023-09-11
IPC分类号： C09D127/18 , C09D7/43 , C09D7/47 , C09D7/61 , C09D7/63
CPC分类号： C09D127/18 , C09D7/43 , C09D7/47 , C09D7/61 , C09D7/63
摘要： A coating material composition containing a fluororesin, a polymer (I) containing a polymerization unit (I) derived from a monomer represented by the general formula (I) below, and an aqueous medium, wherein the content of the polymer (I) is 2,000 ppm by mass or less based on the coating material composition:
CX1X3═CX2R(—CZ1Z2-A0)m (I)
wherein X1 and X3 are each independently F, Cl, H, or CF3; X2 is H, F, an alkyl group, or a fluorine-containing alkyl group; A0 is an anionic group; R is a linking group; Z1 and Z2 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：US20220275237A1
公开(公告)日：2022-09-01
申请号：US17687086
申请日：2022-03-04
发明人： Emi YAMAMOTO , Takuya YAMABE , Yoshihiro SODA , Taku YAMANAKA , Takahiro TAIRA , Yohei FUJIMOTO , Taketo KATO
摘要： A PTFE aqueous dispersion having low viscosity at high temperature. The PTFE aqueous dispersion contains PTFE and a nonionic surfactant, has a PTFE solid concentration of 50 to 70% by mass, is substantially free from a fluorine-containing surfactant, and has a viscosity at 55° C. of 50 mPa·s or lower. Also disclosed is a method for producing the PTFE aqueous dispersion, a coating film obtained by applying the PTFE aqueous dispersion, an impregnated film obtained by impregnating the PTFE aqueous dispersion, and a coated article containing a coating film obtained by applying the PTFE aqueous dispersion.
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3.发明公开公开(公告)号：US20240282968A1
公开(公告)日：2024-08-22
申请号：US18617997
申请日：2024-03-27
发明人： Taketo KATO , Takaya YAMADA , Kohei YASUDA , Taku YAMANAKA , Junpei TERADA , Masahiko YAMADA , Ryota USAMI , Hiroyuki SATO , Emi YAMAMOTO , Kenta NISHIMURA
CPC分类号： H01M4/623 , C08L27/18 , H01M4/13 , C08L2201/50
摘要： The disclosure aims to provide a polytetrafluoroethylene powder for an electrode binder which can not only reduce or prevent gas generation inside a battery cell and deterioration of battery characteristics but also improve the electrode strength, an electrode binder, an electrode mixture, an electrode, and a secondary battery. Provided is a polytetrafluoroethylene powder for use as an electrode binder, the polytetrafluoroethylene having a standard specific gravity of 2.200 or less and being substantially free from water.
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公开(公告)号：US20230416421A1
公开(公告)日：2023-12-28
申请号：US18464931
申请日：2023-09-11
发明人： Takuya YOSHIOKA , Emi YAMAMOTO , Yohei FUJIMOTO , Taketo KATO , Taku YAMANAKA , Hirotoshi YOSHIDA
摘要： A method for producing a fluoropolymer aqueous dispersion, the method including concentrating a composition comprising a polymer (I) containing a polymerization unit (I) derived from a monomer (I) represented by the general formula (I), a fluoropolymer excluding the polymer (I), a nonionic surfactant, a fluorine-free anionic surfactant, and an aqueous medium to thereby obtain an aqueous dispersion containing the fluoropolymer,
CX1X3═CX2R(—CZ1Z2-A0)m (I)
wherein X1 and X3 are each independently F, Cl, H, or CF3; X2 is H, F, an alkyl group, or a fluorine-containing alkyl group; A0 is an anionic group; R is a linking group; Z1 and Z2 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：US20230203297A1
公开(公告)日：2023-06-29
申请号：US18178918
申请日：2023-03-06
发明人： Takuya YAMABE , Emi YAMAMOTO , Yoshihiro SODA , Taku YAMANAKA , Ryota USAMI , Taketo KATO , Tomohiro SHIROMARU , Yasukazu NAKATANI
CPC分类号： C08L27/24 , C08F2/30 , C08L27/18 , C08L2201/54
摘要： A modified polytetrafluoroethylene aqueous dispersion having low viscosity at high temperature. The modified polytetrafluoroethylene aqueous dispersion contains a modified polytetrafluoroethylene and a nonionic surfactant, has a modified polytetrafluoroethylene solid concentration of 50 to 70% by mass, is substantially free from a fluorine-containing surfactant, and has a viscosity at 55° C. of 80 mPa•s or lower, and the modified polytetrafluoroethylene contains 0.050% by mass or more and 1.00% by mass or less of a polymerized unit based on a modifying monomer.
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