CURING CATALYST, RESIN COMPOSITION, SEALING MATERIAL, ADHESIVE AND CURED PRODUCT

    公开(公告)号:EP4130094A1

    公开(公告)日:2023-02-08

    申请号:EP20929256.4

    申请日:2020-04-24

    摘要: An object of the present invention is to provide a curing catalyst, a resin composition, a sealing material, an adhesive agent, and a cured product, which have good characteristics. A curing catalyst for epoxy resin, which contains an epoxy imidazole adduct having structural formula (I) below, is prepared. Furthermore, a resin composition containing the curing catalyst, a sealing material or an adhesive agent each containing the resin composition, and a cured product obtained by curing the resin composition are prepared. (In the formula, R 1 is a group selected from hydrogen, phenyl, and C1-C17 alkyls, and R 2 and R 3 are each independently a group selected from hydrogen and C1-C6 alkyls.)

    NEAR-INFRARED (NIR) SENSITIZED ADHESIVE AND SEALANT COMPOSITIONS

    公开(公告)号:EP4050061A1

    公开(公告)日:2022-08-31

    申请号:EP21159691.1

    申请日:2021-02-26

    摘要: The present invention is directed to a photo-curable adhesive or sealant composition comprising, based on the weight of the composition:
    from 1 to 10 wt.% of a) at least one oxetane compound according to Formula (I) below:

    wherein: R 1 and R 2 are H, C 1 -C 6 alkyl, C 6 -C 18 aryl or C 7 -C 18 aralkyl;
    each R 3 is independently a C 1 -C 12 alkylene group, C 6 -C 18 arylene group, C 2 -C 12 alkenylene group or a poly(C 1 -C 6 alkyleneoxy) group; and,
    n is an integer of from 1 to 3;

    from 5 to 20 wt.% of b) at least one epoxide compound, wherein part b) is characterized in that at least 50 wt.% of the total weight of epoxide compounds is constituted by b1) at one cycloaliphatic epoxide;
    from 0.1 to 5 wt.% of c) at least one ionic photoacid generator;
    from 0 to 10 wt.% of d) at least one free radical photoinitiator;
    from 0.01 to 5 wt.% of e) at least one near-infrared absorbing dye; and,
    from 50 to 90 wt.% of f) particulate filler.