SOLID POLYMERS HAVING THE SURFACE PORTION MODIFIED BY REACTION WITH THIOCYANO OR ISOTHIOCYANO GENERATING REACTANTS AND A PROCESS FOR PREPARING SUCH MODIFIED POLYMERS

摘要

Solid polymers in which the surface portion has been modified by reacting with thiocyano or isothiocyano free radical or ion generating reactants. This invention is also directed to a process for preparing such modified polymers. The polymers of the invention provide improved adhesive strength to laminates prepared therefrom, improved paint adhesion, increased viscosity and alterated gas permeability compared to unmodified polymers.