ADHESIVES FOR DVD BONDING

摘要

Curable (meth)acrylate adhesives are formulated with aliphatic urethane(meth)acrylate resins. The resins are urethane (meth)acrylate capped polyols wherein theurethane acrylate capping is derived from isophorone diisocyanate and a hydroxyalkyl(meth)acrylate and the polyol is an oligomeric aliphatic diol or triol having a number averagemolecular weight of from about 1500 to about 3500. The hydroxyalkyl (meth)acrylate may behydroxy ethyl acrylate. The polyol may be a member selected from the group consisting ofpolyoxypropylene triols, polyTHF diols, polycaprolactone/polyTHF block copolymers, andpolycaprolactone diols. The adhesives give good adhesion to common DVD substrate materials,and display excellent corrosion resistance in dissimilar metal bonding applications.