PRODUCTION METHOD OF COMPOSITION CONTAINING FLUORORESIN AND COMPOSITION CONTAINING FLUORORESIN

    公开(公告)号:US20250043042A1

    公开(公告)日:2025-02-06

    申请号:US18926639

    申请日:2024-10-25

    Abstract: Provided is a method for producing a composition containing a fluororesin, the method comprising polymerizing tetrafluoroethylene in an aqueous medium in the presence of a polymer (I) containing a polymerization unit (I) derived from a monomer (I) represented by the general formula (I) to obtain a polymerization dispersion containing a fluororesin containing a tetrafluoroethylene unit, coagulating the fluororesin in the polymerization dispersion to obtain a coagulate, and washing the coagulate to obtain a composition containing the fluororesin, wherein (1) the coagulation is carried out by bringing the fluororesin in the polymerization dispersion into contact with an organic solvent, and/or (2) the washing is carried out by bringing the coagulate into contact with an organic solvent, CX1X3═CX2R(—CZ1Z2-A0)m  (I) wherein the definitions of the reference signs in the formula are as provided in the specification.

    COMPOSITION AND METHOD FOR PRODUCING THE SAME

    公开(公告)号:US20220185917A1

    公开(公告)日:2022-06-16

    申请号:US17687325

    申请日:2022-03-04

    Abstract: A composition containing a polytetrafluoroethylene, a polymer (I) containing a polymerization unit (I) based on a monomer represented by the general formula (I), a nonionic surfactant, and an aqueous medium, wherein a content of the polytetrafluoroethylene in the composition is 10% by mass or more based on the composition, and a content of the nonionic surfactant in the composition is 1.0% by mass or more based on the polytetrafluoroethylene, CX1X3═CX2R(—VZ1Z2-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.

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