利索-全球专利检索

  1. Login
  2. Sign Up

Search Results

9 records (took 0.016 seconds)

    METHOD FOR PRODUCING AQUEOUS DISPERSION OF FLUORINE-CONTAINING ELASTOMER
    1.
    发明公开
    METHOD FOR PRODUCING AQUEOUS DISPERSION OF FLUORINE-CONTAINING ELASTOMER 审中-实审

    公开(公告)号：EP4353752A1

    公开(公告)日：2024-04-17

    申请号：EP22820316.2

    申请日：2022-06-09

    Applicant: Daikin Industries, Ltd.

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

    IPC: C08F2/24 ,  C08F214/22 ,  C08F216/14

    CPC classification number: C08F214/22 ,  C08F216/14 ,  C08F2/24

    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 an aqueous medium and a fluorine-containing compound (A), to produce an aqueous dispersion containing a fluorine-containing elastomer, wherein the fluorine-containing elastomer contains a methylene group in a main chain, the fluorine-containing compound (A) is a compound represented by general formula (A):

            CXiXk=CXjRa-(CZ1Z2)k-Y3     (A)

    wherein Xi, Xj, and Xk are the same or different and are F, Cl, H, or CF3; Y3 is a hydrophilic group; Ra is a linking group; Z1 and Z2 are the same or different and are H, F, or CF3; and k is 0 or 1; provided that at least one of Xi, Xk, Xj, Ra, Z1, and Z2 comprises F; and the number of carbon atoms in a portion excluding the hydrophilic group is 6 or less, and the fluorine-containing compound (A) is fed after polymerization of the fluorine-containing monomer is initiated.

    METHOD FOR MANUFACTURING FLUORINE-CONTAINING ELASTOMER AQUEOUS DISPERSION, FLUORINE-CONTAINING ELASTOMER, AND AQUEOUS DISPERSION
    5.
    发明公开
    METHOD FOR MANUFACTURING FLUORINE-CONTAINING ELASTOMER AQUEOUS DISPERSION, FLUORINE-CONTAINING ELASTOMER, AND AQUEOUS DISPERSION 审中-公开

    公开(公告)号：EP4190828A1

    公开(公告)日：2023-06-07

    申请号：EP21851129.3

    申请日：2021-07-29

    Applicant: Daikin Industries, Ltd.

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

    IPC: C08F214/22 ,  C08F214/26 ,  C08F214/28

    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 fluorine-containing compound (1) represented by general formula (1) and an aqueous medium to produce an aqueous dispersion of a fluorine-containing elastomer:

            General formula (1):     CX 1 X 2 =CX 3 -Z

    wherein X 1 to X 3 are each independently H, F, or a fluorine-containing alkyl group; when X 1 and X 2 are both H, X 3 is F or a fluorine-containing alkyl group; Z is a group represented by -COOM, -SO 3 M, -OSO 3 M, -PO(OM) 2 , - OPO(OM) 2 , -BO(OM) 2 , or -OBO(OM) 2 ; M is H, a metal atom, NR 1 4 , optionally substituted imidazolium, optionally substituted pyridinium, or optionally substituted phosphonium; and R 1 is independently H or an organic group, and any two R 1 are optionally bonded to each other to form a ring.

Patent Agency Ranking