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US 9,803,045 B2Granted
Aqueous coating compositions containing acetoacetyl-functional polymers, coatings, and methods
AssigneeValspar Sourcing, Inc.
InventorT. Howard Killilea
Life of this patent
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Abstract
Aqueous coating compositions that include polymers having one or more of the following acetoacetyl-functional groups: wherein R1 is a C1 to C22 alkylene group and R2 is a C1 to C22 alkyl group.
Claims33
A coating composition consisting of:
- water;
- a latex polymer stabilized with an alkali-soluble polymer;
- wherein the alkali-soluble polymer is derived from greater than 10% by weight of one or more polymerizable acid monomers;
- wherein the latex polymer comprises one or more acetoacetyl-functional groups of the formula:
- wherein R1 is a C1 to C22 alkylene group and R2 is a C1 to C22 alkyl group;
- trimethylolpropane ethoxylate tri(meth)acrylate;
- and
- a hydrogen abstraction-type photoinitiator;
- wherein the hydrogen abstraction-type photoinitiator is selected to cure the acetoacetyl-functional latex polymer via a free radical UV cure mechanism through hydrogen abstraction of the —C(O)—CH2—C(O)— hydrogens;
- wherein the coating composition does not include a multifunctional amine crosslinker.
7 more elements
A method of coating a substrate surface, the method comprising:
- providing a coating composition consisting of:
- water;
- a latex polymer stabilized with an alkali-soluble polymer;
- wherein the alkali-soluble polymer is derived from greater than 10% by weight of one or more polymerizable acid monomers;
- wherein the latex polymer comprises one or more acetoacetyl-functional groups of the formula:
- wherein R1 is a C1 to C22 alkylene group and R2 is a C1 to C22 alkyl group;
- an ethylenically unsaturated compound distinct from the polymer comprising acetoacetyl functionality;
- wherein the ethylenically unsaturated compound is a monomer, oligomer, or mixture thereof comprising a multifunctional (meth)acrylate-functional monomer selected from the group consisting of isobornyl (meth)acrylate, isodecyl (meth)acrylate, phenoxyethyl (meth)acrylate, trimethylolpropane tri(meth)acrylate, trimethylolpropane ethoxylate tri(meth)acrylate, tripropylene glycol di(meth)acrylate, hexanediol di(meth)acrylate, tetrahydrofurfuryl (meth)acrylate, beta-carboxyethyl (meth)acrylate, bisphenol A ethoxylate di(meth)acrylate, ethoxylated neopentyl glycol di(meth)acrylate, propoxylated neopentyl glycol di(meth)acrylate, di-(trimethylolpropane tetra (meth)acrylate), pentaerythritol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, and mixtures thereof;
- and
- optionally an initiator;
- applying the coating composition to a substrate surface;
- and
- at least partially curing the coating composition.
10 more elements
A coating composition consisting essentially of:
- water;
- a latex polymer stabilized with an alkali-soluble polymer;
- wherein the alkali-soluble polymer is derived from greater than 10% by weight of one or more polymerizable acid monomers;
- wherein the latex polymer comprises one or more acetoacetyl-functional groups of the formula:
- wherein R1 is a C1 to C22 alkylene group and R2 is a C1 to C22 alkyl group;
- and
- trimethylolpropane ethoxylate tri(meth)acrylate;
- and
- a hydrogen abstraction-type photoinitiator;
- wherein the hydrogen abstraction-type photoinitiator is selected to cure the acetoacetyl-functional latex polymer via a free radical UV cure mechanism through hydrogen abstraction of the —C(O)—CH2—C(O)— hydrogens;
- wherein the coating composition does not include a multifunctional amine crosslinker.
8 more elements
Dependencies are inferred from the claim text.