公开(公告)号：US20240034871A1

公开(公告)日：2024-02-01

申请号：US18478411

申请日：2023-09-29

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Kazuyoshi KAWASAKI ,  Daisuke OTA ,  Kouhei TAKEMURA

IPC: C08L27/16 ,  C08K3/22 ,  C08K5/1545 ,  C08K5/46

CPC classification number: C08L27/16 ,  C08K3/22 ,  C08K5/1545 ,  C08K5/46 ,  C08J2327/16 ,  C08K2003/2227

Abstract: A fluoroelastomer crosslinkable composition containing: a polyol-crosslinkable fluoroelastomer (a); and a cross-linking agent (b), wherein the cross-linking agent (b) is at least one selected from a compound that has a structure represented by the following general formula (b) in its molecule and that does not contain a fluorine atom, and a salt of the compound with an alkali metal, an alkaline earth metal, or an onium compound:




wherein all symbols are as defined in the specification. Also disclosed are a formed article and sealing material obtained from the fluoroelastomer crosslinkable composition.

公开(公告)号：US20230250259A1

公开(公告)日：2023-08-10

申请号：US18165536

申请日：2023-02-07

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Kazuyoshi KAWASAKI ,  Kouhei TAKEMURA

IPC: C08K5/13 ,  C08K5/41

CPC classification number: C08K5/13 ,  C08K5/41

Abstract: The present disclosure provides a fluoroelastomer crosslinkable composition, the composition containing (a) a polyol-crosslinkable fluoroelastomer and (b) a cross-linking agent, wherein the cross-linking agent (b) is at least one selected from the group consisting of a compound represented by the general formula (b1) set forth in the description, a compound represented by the general formula (b2) set forth in the description, a compound represented by the general formula (b3) set forth in the description, and a salt of any of these compounds with an alkali metal, an alkaline earth metal, or an onium compound.

公开(公告)号：US20230167219A1

公开(公告)日：2023-06-01

申请号：US18160129

申请日：2023-01-26

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Rina TAMAI ,  Tatsuya MORIKAWA ,  Sota YUASA ,  Kouhei TAKEMURA ,  Masaki IRIE

IPC: C08F291/06 ,  C08K5/02

CPC classification number: C08F291/06 ,  C08K5/02

Abstract: Provided is a method for producing an aqueous dispersion of a fluorine-containing elastomer, comprising polymerizing a fluorine-containing monomer in the presence of a compound (1) having a triple bond and a hydrophilic group and an aqueous medium to produce an aqueous dispersion of a fluorine-containing elastomer.

公开(公告)号：US20230167212A1

公开(公告)日：2023-06-01

申请号：US18159999

申请日：2023-01-26

Applicant: DAIKIN INDUSTRIES, LTD.

Inventor： Rina TAMAI ,  Tatsuya MORIKAWA ,  Sota YUASA ,  Kouhei TAKEMURA ,  Masaki IRIE

IPC: C08F214/22 ,  C08L27/20

CPC classification number: C08F214/22 ,  C08L27/20 ,  C08L2201/54

Abstract: A method for producing an aqueous dispersion of a fluorine-containing elastomer, which includes polymerizing a fluorine-containing monomer in the presence of a fluorine-free compound (1) represented by general formula (1): CR1X1═CX2—R2—COOM and an aqueous medium, to produce an aqueous dispersion of the fluorine-containing elastomer containing —CH2— in a main chain. Also disclosed is an aqueous dispersion of the fluorine-containing elastomer and a composition containing the fluorine-containing elastomer.