Waterborne acrylate-functionalized alkyd coating compositions
AssigneeResolution Specialty Materials LLC
InventorsThauming Kuo, Paul Vincent Grosso, Gary Eugene Spilman, Mark Dwight Clark
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Abstract
A waterborne acrylate-functionalized alkyd coating composition is disclosed, which includes an acrylate-functionalized alkyd resin, at least one drier, and water. The acrylate-functionalized alkyd resin comprises the reaction product of (i) a hydroxy functional alkyd resin, (ii) an acid anhydride, and (iii) a glycidyl acrylate. Methods of preparing waterborne acrylate-functionalized alkyd coating compositions are also disclosed.
Claims21
A waterborne acrylate-functionalized alkyd coating composition, comprising:
- (I) an acrylate-functionalized alkyd resin comprising the reaction product of:
- (a) about 79 to about 95 wt % of an alkyd resin having an acid number of from 0 to about 100 mg KOH/g;
- (b) about 2 to about 8 wt % of an acid anhydride;
- and
- (c) about 3 to about 13 wt % of a glycidyl acrylate, wherein the glycidyl moiety of the glycidyl acrylate is the reactive moiety and the reaction product contains reactive acrylate moieties, and
- wherein the weight percents are based on the total weight of (a), (b) and (c);
- (II) at least one drier;
- and
- (III) water
A method of making a waterborne acrylate-functionalized alkyd coating composition, comprising a step of combining:
- (I) an acrylate-functionalized alkyd resin comprising the reaction product of
- (a) a hydroxyl functional alkyd resin with an acid number of 0 to about 100 mg KOH/g,
- (b) an acid anhydride, and
- (c) a glycidyl acrylate,
- wherein the glycidyl moiety of the glycidyl acrylate is the reactive moiety and the reaction product contains reactive acrylate moieties;
- (II) at least one drier;
- and
- (III) water.
A method of making a waterborne acrylate-functionalized alkyd coating composition, comprising the steps of:
- (a) reacting:
- (i) from 0 to about 30 mol % of a diol,
- (ii) from about 10 to about 40 mol % of a polyol,
- (iii) from about 20 to about 40 mol % of a polyacid,
- (iv) from 0 to about 10 mol % of a monofunctional acid, and
- (v) from about 10 to about 50 mol % of a fatty acid, a fatty ester, or a naturally occurring, partially-saponified oil,
- in the presence of a catalyst, each as described above, at about 180-250° C., until the desired amount of the condensate is obtained, to form an alkyd resin, wherein the mole percents are based on the total moles of (i), (ii), (iii), (iv), (v) and (vi);
- (b) reacting, at a temperature range of about 150-165° C., the alkyd resin of step (a) with from about 2 to about 8 wt % of an acid anhydride, to form a carboxyl-functional alkyd resin;
- and
- (c) reacting, at a temperature range of from about 125-155° C., the carboxyl-functional alkyd resin of step (b) with from about 3 to about 12 wt % of a glycidyl acrylate, to form an acrylate-functionalized alkyd resin,
- wherein the weight percents are based on the total weight of the alkyd resin, the acid anhydride and the glycidcyl acrylate.
Dependencies are inferred from the claim text.