Polyurethane Dispersions and Methods of Making and Using Same
AssigneeResinate Technologies, Inc.
InventorsKRISTOPHER M. FELICE, Adam W. Emerson, George F. Willard, Eric W. Uffman, Albert C. Lee
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Abstract
The presently disclosed and claimed inventive concept(s) relates generally to polyethylene terephthalate (“PET”) polymers, digested oligomeric derivatives of PET (“dPET”), functionalized oligomeric derivatives of dPET (“dfPET”), and polyurethane dispersions (“PUD”) made from or incorporating dfPET therein.
Claims14
A dispersion of polymer particles in a continuous aqueous phase, wherein the dispersed particles comprise a polyurethane resin that is the reaction product of a polyisocyanate;
- at least one water solubilizing monomer;
- and at least one oligomeric form of polyethylene terephthalate containing hydroxyl group(s).
A method for preparing a dispersion of polymer particles in a continuous aqueous phase, comprising dispersing a urethane group-containing prepolymer in an aqueous phase, wherein the prepolymer is the reaction product of a polyisocyanate;
- at least one water solubilizing monomer;
- and at least one oligomeric form of polyethylene terephthalate containing hydroxyl group(s) comprising the reaction product of polyethylene terephthalate, a glycolysis agent, and optionally a catalyst.
Dependencies are inferred from the claim text.