GAS BARRIER MULTILAYER BODY, COATING LIQUID FOR PRODUCING SAME, PACKAGING MATERIAL, PACKAGE, AND PACKAGED ARTICLE

    公开(公告)号:EP4169849A1

    公开(公告)日:2023-04-26

    申请号:EP21825154.4

    申请日:2021-06-17

    Applicant: TOPPAN INC.

    Abstract: Provided is a gas barrier laminate in which separation between a coating layer having gas barrier properties and a layer adjacent to the coating layer is less likely to occur. A coating solution for producing a gas barrier laminate contains a carboxyl group-containing polymer (A), polyvalent metal-containing particles (B), a surfactant (C), an organic solvent (D), and at least one silicon-containing compound (E) selected from the group consisting of a silane coupling agent represented by the following general formula (1), a silane coupling agent represented by the following general formula (2), hydrolysates thereof, and condensates thereof, wherein the mass ratio of the silicon-containing compound (E) to the carboxyl group-containing polymer (A) is 0.5% or more. Si(OR1) 3 Z1 ... (1); Si(R2)(OR3) 2 Z2 ... (2). (R1 and R3 are alkyl groups having 1 to 6 carbon atoms, R2 is a methyl group, and Z1 and Z2 are a group containing an epoxy group.)

Patent Agency Ranking