Pressure sensitive adhesives from plant oil-based polyols
AssigneeOregon State University
InventorsJian Huang, Anlong Li, Kaichang Li
Life of this patent
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Abstract
A polymer made by: (A) initially reacting poly(propylene glycol) with tolylene diisocyanate to form an intermediate product, and (B) subsequently reacting the resulting intermediate product with at least one polyol, wherein the polyol was derived from, or is, a plant oil.
Claims21
A polymer made by:
- (A) initially reacting poly(propylene glycol) with tolylene diisocyanate to form an intermediate product, and
- (B) subsequently reacting the resulting intermediate product with at least one polyol, wherein the polyol was derived from, or is, soybean oil.
A polymer made by reacting tolylene 2,4-diisocyanate terminated poly(propylene glycol) with at least one polyol, wherein the polyol was derived from, or is, soybean oil.
A polyurethane comprising a poly(propylene glycol) repeating unit, a tolylene diisocyanate repeating unit, and a polyol repeating unit, wherein the polyol was derived from soybean oil.
A polyurethane having a structure represented by:
- wherein PPG denotes a monomeric unit from poly(propylene glycol);
- the polyol was derived from a plant oil;
- m is 1 to 100;
- and n is 1 to 100.
A pressure sensitive adhesive construct comprising:
- (A) a backing substrate;
- and
- (B) a pressure sensitive adhesive disposed on the backing substrate, wherein the pressure sensitive adhesive comprises a polymer made by:
- (i) initially reacting poly(propylene glycol) with tolylene diisocyanate to form an intermediate product, and
- (ii) subsequently reacting the resulting intermediate product with at least one polyol, wherein the polyol was derived from, or is, a plant oil.
A method for making a pressure sensitive adhesive comprising:
- (A) initially reacting poly(propylene glycol) with tolylene diisocyanate to form an intermediate product, and
- (B) subsequently reacting the resulting intermediate product with at least one polyol, wherein the polyol was derived from, or is, a plant oil.
A method for making a pressure sensitive adhesive comprising reacting tolylene 2,4-diisocyanate terminated poly(propylene glycol) with at least one polyol, wherein the polyol was derived from, or is, a plant oil.
Dependencies are inferred from the claim text.