Methods for bonding dissimilar synthetic polymeric materials and the products involved in and resulting from such methods

Abstract

A method of improving the bond between dissimilar synthetic polymeric materials, such as, for example, a vinyl resin material and a polyurethane or acrylated polyurethane resin material which comprises: including in the vinyl resin material a chemical compound possessing hydroxy, carboxy, amido, amino, imino, mercapto, or like functions containing reactive hydrogen; providing free, available isocyanate in the polyurethane or acrylated polyurethane resin material; bringing the vinyl resin material and the polyurethane or acrylated polyurethane resin material into contact; and exposing the vinyl resin material and the polyurethane, or acrylated polyurethane resin material, while in contact, to curing conditions, whereby there is sufficient chemical inter-reaction between these resin materials as to create a strong and permanent primary chemical bond therebetween, in addition to any secondary bonds, such as hydrogen bonds and/or van der Waals forces. The present invention also relates to the products involved in and resulting from such methods.

Dependencies are inferred from the claim text.