| 摘要 |
<p>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 (Mn) 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.</p> |
