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US 6,444,781 B1Granted
Polyester resin intermediate compositions and preparation and uses thereof
AssigneeEastman Chemical Company
InventorsThauming Kuo, Jeffery E. G. Powell
Life of this patent
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Abstract
The invention relates to resin intermediates and their preparation. The invention also relates to hydroxyl-functional, water-dispersible polymers formed from the intermediates and compositions containing the water-dispersible polymers. A preferred composition of the invention is a zero volatile organic content (VOC), ambient-cure enamel composition which contains a hydroxyl-functional, water-dispersible polyester.
Claims6
A process for forming a resin intermediate comprising the steps of:
- forming a slurry of a glycol component, a difunctional sulfomonomer and water;
- and
- reacting said slurry to form a resin intermediate, wherein the resin intermediate formed is substantially free of unreacted difunctional sulfomonomer particles.
Dependencies are inferred from the claim text.