Eastman Chemical Company

Glenn Lewis Shoaf

Bradley James Helmer

Mark Dwight Clark

Mark Kevin Vineyard

This invention relates to a rubber modified acrylic and/or vinyl resin comprising the mini-emulsion polymerization product of at least one rubber compound substantially dissolved in at least one acrylic monomer and/or vinyl monomer.

Rubber modified acrylic and/or vinyl hybrid resins

A process is provided to produce an aqueous composition. The process comprises shearing a mixture to produce a mini-emulsion and polymerizing said mini-emulsion in the presence of an initiator to produce the aqueous composition; wherein said mixture comprises at least one tackifier, at least one ethylenically unsaturated monomer, at least one surfactant, and water. The aqueous composition can be utilized to produced various articles including, but not limited to, adhesives, coatings, and laminates.

Process to produce an aqueous composition

A water-based latex of an acrylic-modified waterborne alkyd or uralkyd dispersion in water is described. The acrylic-modified waterborne alkyd or uralkyd is a hybrid resin prepared by the polymerization of at least one latent oxidatively-functional (LOF) acrylic monomer in the presence of a waterborne alkyd or uralkyd. Alternatively, the acrylic-modified waterborne alkyd or uralkyd is a hybrid resin prepared by shearing a mini-emulsion based on a solvent-borne alkyd or uralkyd dissolved in at least one LOF acrylic monomer. Preparation of the latexes may be achieved by emulsion polymerization of at least one latent oxidatively-functional acrylic monomer in the presence of a waterborne alkyd or uralkyd whereby the latent oxidative functionality of the acrylic polymer survives polymerization. Water-based latexes may also be prepared by polymerizing a sheared mini-emulsion based on a solvent-borne alkyd or uralkyd dissolved in at least one LOF acrylic monomer such that the latent oxidative functionality of the acrylic polymer survives polymerization. Such acrylic-modified waterborne alkyd or uralkyds are useful in a variety of coating compositions.

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Kingsport, TN, United States of America

Glenn Lewis Shoaf