5.
    发明专利
    未知

    公开(公告)号:IT1163706B

    公开(公告)日:1987-04-08

    申请号:IT2532579

    申请日:1979-08-29

    Applicant: IBM

    Abstract: Screen-printing composition containing an epoxy novolac, a phenoxy polymer, a liquid anhydride, colloidal silica, and a diluent. The composition is useful for coating substrates such as printed circuits and serves as a solder mask.

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