Dow Global Technolgoies LLC

Rohm and Haas Company

Blue Cube IP LLC

Rebecca L Ladewski

Erin B Vogel

Andrew Hejl

Eric C Greyson

Charles Hegedus

Wenqin Wang

Ray E Drumright

Susan Machelski

The present invention relates to a method comprising the steps of: a) contacting an acrylate monomer, a carboxylic acid monomer, and a chain transfer agent under free radical polymerization conditions to form a solution of a polymer having an Min the range of from 5,000 to 50,000 Daltons; b) contacting the solution with a base and an ethylenically unsaturated glycidyl functionalized monomer to form a solution of an ethylenically unsaturated acrylate polymer; c) contacting the solution of the ethylenically unsaturated functionalized acrylate polymer with water to form an aqueous dispersion of ethylenically unsaturated functionalized acrylate polymers; and d) removing the organic solvent. The method of the present invention provides a composition suitable for use as a UV curable coating that achieves an excellent balance of hardness, flexibility, and warmth with less reliance on costly MFAs.

Method for preparing a UV curable coating composition

The present invention relates to a method comprising an aqueous dispersion of polymer particles having a backbone comprising structural units of an acrylate monomer and a carboxylic acid monomer, wherein a portion of the structural units of the carboxylic acid monomer are functionalized with glycidyl methacrylate, wherein the glycidyl methacrylate functionalized polymer particles have a number average molecular weight in the range of 5,000 to 50,000 Daltons. The composition of the present invention provides a UV curable coating that achieves an excellent balance of hardness and flexibility, with less reliance on the use of multifunctional acrylates.

UV curable coating composition

An adduct including a reaction product of (a) at least a first cycloaliphatic amine compound; (b) at least a second cycloaliphatic amine compound; and (c) at least one cycloaliphatic epoxy resin compound; a curable epoxy resin coating composition including (i) the above adduct; and (ii) at least one thermosetting epoxy resin compound; said curable composition being curable at ambient temperature; and a cured weatherable coating prepared from the above curable composition.

Ambient cure weatherable coatings

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Midland, MI, United States of America

Rebecca L Ladewski