公开(公告)号：US20250026949A1

公开(公告)日：2025-01-23

申请号：US18891406

申请日：2024-09-20

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Masahiro HIGASHI ,  Kanako NAKANISHI ,  Sumi ISHIHARA ,  Tomohito HAMADA ,  Kensuke YAMATO ,  Kazuki KANEKO ,  Yosuke KISHIKAWA

IPC: C09D129/10 ,  C08F214/22 ,  C08F216/14 ,  C09D127/16

Abstract: Provided is a fluoropolymer containing a polymerization unit (I) derived from a monomer (I) represented by the general formula (I) and a polymerization unit (II) derived from a monomer (II) represented by the formula (II): 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; and CHF═CHF  (II)

公开(公告)号：US20240109985A1

公开(公告)日：2024-04-04

申请号：US18512953

申请日：2023-11-17

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Masahiro HIGASHI ,  Kanako NAKANISHI ,  Sumi ISHIHARA ,  Moe HOSOKAWA ,  Kensuke YAMATO ,  Kazuki KANEKO ,  Yosuke KISHIKAWA

IPC: C08F16/30 ,  C08F16/24 ,  C08F16/26 ,  C09D127/12

CPC classification number: C08F16/30 ,  C08F16/24 ,  C08F16/26 ,  C09D127/12

Abstract: A fluoropolymer of a monomer (I) represented by the general formula (I), wherein a content of a polymerization unit (I) derived from the monomer (I) is 50% by mass or more based on all polymerization units constituting the fluoropolymer:


CX2═CX—O—Rf—SO3M  General formula (I)

wherein X is independently F or CF3; 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 or a keto group; and 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. Also disclosed are an aqueous solution and coating composition containing the fluoropolymer.