Patent ID: 7217750

Claim:
A process for infusing at least one corrosion inhibitor into a biodegradable polymer, a polymer, or resin material, comprising the steps of: providing a supercritical fluid comprising carbon dioxide or nitrous oxide; contacting a) said biodegradable polymer, said polymer, or said resin and b) at least one triazole or inorganic nitrite corrosion inhibitor with said supercritical fluid under supercritical conditions, wherein a) said biodegradable polymer, said polymer, or said resin is contacted with said supercritical fluid before, after, or simultaneously with said contacting of said b) at least one triazole or inorganic nitrite corrosion inhibitor with said supercritical fluid; and separating at least essentially all of the supercritical fluid from said biodegradable polymer, said polymer, or said resin material leaving said at least one triazole or inorganic nitrite corrosion inhibitor infused in the biodegradable polymer, polymer, or resin material.