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US 6,646,091 B2Granted
Isocyanate crosslinked waterborne coatings
AssigneeJohnson Polymer, Inc.
InventorsJames W. Taylor, Susan L. Renner
Life of this patent
Estimating the term…
Abstract
Coating compositions include polymeric particles, an isocyanate-containing crosslinking agent, and water. The polymeric particles include at least one incorporated monoalkenyl aromatic monomer, at least one incorporated vinyl-containing surfactant macromonomer, and at least one incorporated acrylic monomer. At least one incorporated acrylic monomer in the polymeric particles includes a hydroxyl, amine, or a carboxylic acid functional group. The crosslinking agent is an isocyanate-containing organic compound or such a compound with blocked isocyanate groups. Coating compositions may be deposited and cured by heating to form crosslinked coating compositions. Such crosslinked coating compositions exhibit excellent solvent resistance.
Claims6
A coating composition, comprising:
- (a) polymeric particles comprising at least one incorporated monoalkenyl aromatic monomer;
- at least one incorporated vinyl-containing surfactant macromonomer having the structure:
- wherein R0 is an organic di-radical, R1 is H, a halogen, or a C1 to C22 linear or branched chain hydrocarbon group;
- R2 is H, a halogen, or a linear or branched chain C1 to C6 linear or branched chain hydrocarbon;
- R3 is H, a halogen, or a C1 to C6 linear or branched chain hydrocarbon group;
- R4 is H or a C1 to C4 alkyl group;
- m is an integer ranging from 0 to 20;
- n is an integer ranging from 1 to 50;
- X is H, SO3−Y, P(═O)(OH)2, or a deprotonated form of P(═O)(OH)2;
- and Y is a cation selected from the group consisting of sodium, lithium, potassium, ammonium, monoalkylammonium, dialkylammonium, trialkylammonium, tetralkylammonium, and combinations thereof at least one incorporated acrylic monomer, wherein at least one incorporated acrylic monomer comprises at least one functional group, the functional group selected from the set consisting of a hydroxyl functional group, an amine functional group, and a carboxylic acid functional group;
- and incorporated 2-ethylhexyl acrylate;
- (b) a crosslinking agent comprising an organic compound having at least one isocyanate group, at least one block isocyanate group, or at least one isocyanate group and at least one blocked isocyanate group;
- and
- (c) water.
11 more elements
A coating composition, comprising:
- (a) polymeric particles comprising at least one incorporated monoalkenyl aromatic monomer, at least one incorporated vinyl-containing surfactant macromonomer having the structure:
- wherein R0 an organic di-radical, R1 is H, a halogen, or a C1 to C22 linear or branched chain hydrocarbon group;
- R2 is H, a halogen, or a linear or branched chain C1 to C6 linear or branched chain hydrocarbon;
- R3 is H, a halogen, or a C1 to C6 linear or branched chain hydrocarbon group;
- R4 is H or a C1 to C4 alkyl group;
- m is an integer ranging from 0 to 20;
- n is an integer ranging from 1 to 50;
- X is H, SO3−Y, P(═O)(OH)2, or a deprotonated form of P(═O)(OH)2;
- and Y is a cation selected from the group consisting of sodium, lithium, potassium, ammonium, monoalkylammonium, dialkylammonium, trialkylammonium, tetralkylammonium, and combinations thereof, and incorporated styrene, incorporated 2-ethylhexyl acrylate, incorporated 2-hydroxyethyl acrylate, and incorporated methacrylic acid;
- (b) a crosslinking agent comprising an organic compound having at least one isocyanate group, at least one block isocyanate group, or at least one isocyanate group and at least one blocked isocyanate group;
- and
- (c) water.
9 more elements
A coating composition, comprising:
- (a) polymeric particles comprising at least one incorporated monoalkenyl aromatic monomer, at least one incorporated vinyl-containing surfactant macromonomer having the structure:
- wherein R0 an organic di-radical, R1 is H, a halogen, or a C1 to C22 linear or branched chain hydrocarbon group;
- R2 is methyl or H;
- R3 is H;
- R4 is H;
- m is 0;
- n is an integer ranging from 5 to 25;
- X is SO3−Y;
- and Y is a cation selected from the group consisting of sodium, lithium, potassium, ammonium, monoalkylammonium, dialkylammonium, trialkylammonium, tetralkylammonium, and combinations thereof, and at least one incorporated acrylic monomer, wherein at least one incorporated acrylic monomer comprises at least one functional group, the functional group selected from the set consisting of a hydroxyl functional group, an amine functional group, and a carboxylic acid functional group;
- (b) a crosslinking agent comprising an organic compound having at least one isocyanate group, at least one block isocyanate group, or at least one isocyanate group and at least one blocked isocyanate group;
- and
- (c) water.
9 more elements
A method of preparing a coating composition, comprising:
- mixing polymeric particles with a crosslinking agent to produce the coating composition, wherein the polymeric particles comprise at least one incorporated monoalkenyl aromatic monomer, at least one incorporated vinyl-containing surfactant macromonomer having the structure:
- wherein R0 is an organic di-radical, R1 is H, a halogen, or a C1 to C22 linear or branched chain hydrocarbon group;
- R2 is methyl or H;
- R3 is H;
- R4 is H;
- m is 0;
- n is an integer ranging from 5 to 25;
- X is SO3−Y;
- and Y is a cation selected from the group consisting of sodium, lithium, potassium, ammonium, monoalkylammonium, dialkylammonium, trialkylammonium, tetralkylammonium, and combinations thereof, and at least one incorporated acrylic monomer, wherein at least one incorporated acrylic monomer comprises a functional group selected from the set consisting of a hydroxyl functional group, an amine functional group, and a carboxylic acid functional group and wherein the crosslinking agent comprises an organic compound having at least one isocyanate group, at least one blocked isocyanate group, or at least one isocyanate group and at least one blocked isocyanate group.
6 more elements
Dependencies are inferred from the claim text.