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US 2012/0059087 A1Published application
Pressure sensitive adhesives based on renewable resources and related methods
OwnerCarol A. Koch, Prakash Mallya +1inventors
InventorsCarol A. Koch, Prakash Mallya, Charles R. Williams
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Abstract
Pressure sensitive adhesives produced from naturally occurring fats and oils are described. Also described are methods of producing the pressure sensitive adhesives. Generally, one or more naturally occurring fats or oils are epoxidized, and then reacted with certain alcohols or amines to thereby obtain the noted pressure sensitive adhesives.
Claims65
A method of forming a pressure sensitive adhesive, the method comprising:
- providing an epoxidized naturally occurring oil or fat;
- reacting the epoxidized naturally occurring oil or fat with at least one multifunctional agent selected from the group consisting of (i) alcohols, (ii) amines, (iii) amino alcohols, and (iv) combinations thereof, to thereby form a pressure sensitive adhesive.
A method of forming a pressure sensitive adhesive, the method comprising:
- providing an effective amount of bio-based glycerol esters, the glycerol esters including a majority proportion of C8 to C22 fatty acids;
- incorporating epoxide functionality into at least a majority proportion of the glycerol esters, to thereby produce an epoxidized glycerol ester intermediate;
- reacting the epoxidized glycerol ester intermediate with at least one multifunctional agent selected from the group consisting of (i) alcohols, (ii) amines, (iii) amino alcohols, and (iv) combinations thereof, to thereby form a pressure sensitive adhesive.
Dependencies are inferred from the claim text.