Heat activatable adhesives for wire scribed circuit boards
    83.
    发明公开
    Heat activatable adhesives for wire scribed circuit boards 失效
    WärmeaktivierbareKlebstoffefürLeiterplatten。

    公开(公告)号:EP0227002A1

    公开(公告)日:1987-07-01

    申请号:EP86117457.1

    申请日:1986-12-16

    Abstract: A non-tacky, solid, adhesive composition which can be activated without C-staging the polymeric resin, upon application of sufficient heat or ultrasonic energy for a time period less than one second, comprising a) at least one film forming polymeric resin of number average molecular weight (M n ) of at least about 10 000 and having a hydroxyl, epoxide or unsaturated function­ality greater than about 7, the polymeric resin being selected from the group of polyols consisting of poly­esters, polyurethanes, phenoxies, epoxies and mixtures thereof; b) a plasticizer present in an amount which permits the activation without C-staging of the polymeric resin; c) a curing agent which is capable of cross­linking and curing the polymeric resin to a C-stage, the curing agent being present in an amount sufficient to C-stage the polymeric resin.

    Abstract translation: 一种非粘性,固体,粘合剂组合物,其可以在不足够的热或超声波能量的情况下施加足够长的时间来活化而不进行聚合树脂的分级活化,所述组合物包含:a)至少一种成膜聚合树脂 平均分子量(Mn)至少约为10000,具有大于约7的羟基,环氧化物或不饱和官能团,聚合物树脂选自聚酯,聚氨酯,苯氧基,环氧化合物及其混合物组成的多元醇; b)存在的增塑剂,其量允许活化而不使聚合物树脂进行C分级; c)能够将聚合树脂交联并固化至C阶段的固化剂,所述固化剂以足以使聚合物树脂C阶段存在的量存在。

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