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US 2024/0368391 A1Published application
Coating composions with (styrene) acrylic and rubber
AssigneeBASF SE
InventorsXin LI, Nicolas A. FOLEY
Life of this patent
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Abstract
Disclosed herein are coating compositions comprising latex polymer blends with enhanced properties, such as low tackiness and good film strength. Specifically, disclosed herein are latex polymer blends comprising styrene/acrylic latex or acrylic latex and rubber polymers.
Claims23
-22. (canceled)
A latex blend comprising:
- at least one at least one styrene/acrylic latex or acrylic latex selected from the group consisting of pure acrylics, styrene acrylics, vinyl acrylics, acrylated ethylene vinyl acetate copolymers, and mixtures thereof,
- at least one rubber latex,
- wherein the solid mass ratio of styrene/acrylic latex or acrylic latex to rubber latex is between 90:10 and 10:90.
A method of preparing an aqueous coating composition, comprising:
- i) preparing an styrene/acrylic latex or acrylic latex selected from the group consisting of pure acrylics, styrene acrylics, vinyl acrylics, acrylated ethylene vinyl acetate copolymers, and mixtures thereof, and optionally a crosslinking monomer selected from diacetone acrylamide (DAAM) or acetoacetoxyethyl methacrylate (AAEM) by emulsion polymerization;
- and
- ii) combining the styrene/acrylic latex or acrylic latex with a rubber latex, to form an aqueous composition, wherein the solid mass ratio of styrene/acrylic latex or acrylic latex to rubber polymer is between 90:10 and 10:90, based on the solid mass ratio of styrene/acrylic latex or acrylic latex to rubber polymer.
Dependencies are inferred from the claim text.