CURABLE AND ELECTRICALLY DEBONDABLE ONE-COMPONENT (1K) STRUCTURAL ADHESIVE COMPOSITION

    公开(公告)号:EP4353760A1

    公开(公告)日:2024-04-17

    申请号:EP22201244.5

    申请日:2022-10-13

    摘要: The present invention relates to a curable and electrochemically debondable one-component (1K) structural adhesive composition comprising a) a (meth)acrylate monomer selected from the group consisting of hydroxypropyl acrylate, hydroxypropyl methacrylate, hydroxybutyl methacrylate, isobornyl acrylate, isobornyl methacrylate, methyl methacrylate and mixtures thereof; b) an electrolyte selected from the group consisting of 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide, 1-pentyl-3-methylimidazolium bis (trifluoromethylsulfonyl) imide, 1-hexyl-3-methylimidazolium bis (trifluoromethylsulfonyl) imide, 1-heptyl-3-methylimidazolium bis (trifluoromethylsulfonyl) imide, 1-octyl-3-methylimidazolium bis (trifluoromethylsulfonyl) imide, 1-nonyl-3-methylimidazolium bis (trifluoromethylsulfonyl) imide, 1-decyl-3-methylimidazolium bis (trifluoromethylsulfonyl) imide, 1-dodecyl-3-methylimidazolium bis (trifluoromethylsulfonyl) imide, 1-tetradecyl-3-methylimidazolium bis (trifluoromethylsulfonyl) imide, 1-hexadecyl-3-methylimidazolium bis (trifluoromethylsulfonyl) imide, 1-octadecyl-3-methylimidazolium bis (trifluoromethylsulfonyl) imide, trihexyltetradecylphosphonium bis (trifluoromethylsulfonyl) amide, and mixtures thereof; c) a co-polymerisable acid; d) an initiator; e) a core shell toughener; and f) a toughener. The composition according to the present invention can withstand harsh conditions (high temperature and high humidity) while maintaining adhesive and debonding properties.

    METHOD OF PRODUCING PRINT BOARD
    10.
    发明公开

    公开(公告)号:EP4426076A2

    公开(公告)日:2024-09-04

    申请号:EP24188167.1

    申请日:2020-11-25

    IPC分类号: H05K3/00

    摘要: A sealing film (12) that is to be attached to a print board (10) when supplying filling material (16) into through holes (11) of the print board (10) with a printing method under a vacuum atmosphere, the sealing film (12) being to be attached to the print board (10) from an opposite side from a filling material supplying side and separated from the print board (10) before starting a curing of the filling material (16), the sealing film (12) being made of synthetic resin and having a thickness being from 35 µm to 100 µm , the sealing film (12) comprising: a base film (12A) that has a smooth surface, the base film (12A) including micro holes (12C) having a diameter being from 10 µm to 100 µm and arranged at intervals of 2 mm to 4 mm; and an adhesive layer (12B) divided into adhesive layer (12B) portions that have a diameter being from 100 µm to 500 µm and are disposed on the base film at intervals of 10 µm to 400 µm.