公开(公告)号：US20240034901A1

公开(公告)日：2024-02-01

申请号：US18464353

申请日：2023-09-11

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Hiromichi MOMOSE ,  Ozora SHIBATA ,  Emi YAMAMOTO ,  Taketo KATO ,  Yasukazu NAKATANI

IPC: C09D127/18 ,  C09D7/43 ,  C09D7/47 ,  C09D7/61 ,  C09D7/63

CPC classification number: C09D127/18 ,  C09D7/43 ,  C09D7/47 ,  C09D7/61 ,  C09D7/63

Abstract: 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

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Emi YAMAMOTO ,  Takuya YAMABE ,  Yoshihiro SODA ,  Taku YAMANAKA ,  Takahiro TAIRA ,  Yohei FUJIMOTO ,  Taketo KATO

IPC: C09D127/18 ,  C09D7/20 ,  C09D7/63 ,  C08F2/22 ,  C08F14/26 ,  C08J5/18

Abstract: 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.

公开(公告)号：US20240282968A1

公开(公告)日：2024-08-22

申请号：US18617997

申请日：2024-03-27

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Taketo KATO ,  Takaya YAMADA ,  Kohei YASUDA ,  Taku YAMANAKA ,  Junpei TERADA ,  Masahiko YAMADA ,  Ryota USAMI ,  Hiroyuki SATO ,  Emi YAMAMOTO ,  Kenta NISHIMURA

IPC: H01M4/62 ,  C08L27/18 ,  H01M4/13

CPC classification number: H01M4/623 ,  C08L27/18 ,  H01M4/13 ,  C08L2201/50

Abstract: 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.

公开(公告)号：US20230416421A1

公开(公告)日：2023-12-28

申请号：US18464931

申请日：2023-09-11

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Takuya YOSHIOKA ,  Emi YAMAMOTO ,  Yohei FUJIMOTO ,  Taketo KATO ,  Taku YAMANAKA ,  Hirotoshi YOSHIDA

IPC: C08F14/26 ,  C08F6/20

CPC classification number: C08F14/26 ,  C08F6/20

Abstract: 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

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Takuya YAMABE ,  Emi YAMAMOTO ,  Yoshihiro SODA ,  Taku YAMANAKA ,  Ryota USAMI ,  Taketo KATO ,  Tomohiro SHIROMARU ,  Yasukazu NAKATANI

IPC: C08L27/24 ,  C08L27/18 ,  C08F2/30

CPC classification number: C08L27/24 ,  C08F2/30 ,  C08L27/18 ,  C08L2201/54

Abstract: 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.