Coatings with improved stain removal
AssigneeBASF SE
InventorKaliappa RAGUNATHAN
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Abstract
Disclosed herein are coating compositions with enhanced stain removal properties including easy removal of hydrophobic and hydrophilic stains. In some embodiments, the coating comprises multistage polymers, as well as coating compositions containing multistage polymers for use in a variety of applications providing easy stain removal.
Claims24
-33. (canceled)
A multilayer particle comprising
- (i) a first layer comprising a first copolymer derived from a soft ethylenically-unsaturated monomer, a phosphorus-containing monomer, and optionally an acetoacetoxy or keto monomer and a polyfunctional amine;
- and
- (ii) a second layer surrounding at least a portion of the first layer comprising a second copolymer derived from one or more hard ethylenically-unsaturated monomers, at least one ethylenically unsaturated acid monomer;
- and optionally an acetoacetoxy or keto monomer and a polyfunctional amine.
The multilayer particle of claim 43, wherein the carboxylic acid-containing monomers are selected from the group consisting of acrylic acid, methacrylic acid, itaconic acid, maleic acid, fumaric acid, and combinations thereof.
A multilayer particle comprising
- (i) a first layer comprising a first copolymer derived from a soft ethylenically-unsaturated monomer, a phosphorus-containing monomer, and an acetoacetoxy or keto monomer and a polyfunctional amine;
- and
- (ii) a second layer surrounding at least a portion of the first layer comprising a second copolymer derived from one or more hard ethylenically-unsaturated monomers, at least one ethylenically unsaturated acid monomer;
- and an acetoacetoxy or keto monomer and a polyfunctional amine.
A method of making a multilayer particle, comprising
- (i) polymerizing a soft ethylenically-unsaturated monomer, a phosphorus-containing monomer, and optionally an acetoacetoxy or keto monomer in a first emulsion polymerization step to produce a first copolymer;
- and
- (ii) polymerizing one or more hard ethylenically-unsaturated monomer, at least one ethylenically unsaturated acid monomer, and optionally one or more acetoacetoxy or keto monomer to produce a second copolymer;
- and adding polyfunctional amine.
Dependencies are inferred from the claim text.