Pressure sensitive adhesives based on fatty acids

A method for making a pressure sensitive adhesive comprising:

• (a) making epoxidized oleic acid, an epoxidized linoleic acid (including fully and partially epoxidized linoleic acid), or an epoxidized linolenic acid (including fully and partially epoxidized linolenic acid) from at least one plant oil, marine oil, animal fat, or making a mixture thereof;
• and
• (b) polymerizing the epoxidized oleic acid, the epoxidized linoleic acid, the epoxidized linolenic acid, or the mixture thereof to produce a pressure sensitive adhesive, wherein the pressure sensitive adhesive product is a polyester.

A method for making a pressure sensitive adhesive construct comprising:

• making at least one epoxidized fatty acid from at least one plant oil, marine oil, animal fat, or a mixture thereof;
• and
• forming on a backing substrate a pressure sensitive adhesive from the resulting at least one epoxidized fatty acid, wherein the pressure sensitive adhesive is a polyester.