Single pack low temperature bake coating composition
AssigneeValspar Sourcing, Inc.
InventorsMichael D. Foster, Nellie M. Moretz, George A. Sparks, Willette D. Crosby
Life of this patent
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Abstract
Substrates prone to heat distortion may be coated with a coating composition containing chlorinated polyolefin-modified acrylic latex emulsion, polyurethane dispersion, non-gelling self-crosslinking acrylic emulsion, and glycol-based solvent. The coating composition contains sufficient non-gelling self-crosslinking acrylic emulsion and glycol-based solvent so that a 0.1 mm wet thickness layer of the coating composition will form a tack-free film when heated at 65° C. for fifteen minutes, and the glycol-based solvent is selected so that the coating composition is shelf stable.
Claims28
A coating composition comprising a mixture of:
- a) chlorinated polyolefin-modified acrylic latex emulsion,
- b) polyurethane dispersion
- c) non-gelling self-crosslinking acrylic emulsion, and
- d) glycol-based solvent,
- wherein the composition contains sufficient non-gelling self-crosslinking acrylic emulsion and glycol-based solvent so that a 0.1 mm wet thickness layer of the composition will form a tack-free film when heated at 65° C. for fifteen minutes, and the glycol-based solvent is selected so that the coating composition is shelf stable.
A coated article comprising a substrate having thereon a hardened continuous coating obtained from a shelf stable mixture of chlorinated polyolefin-modified acrylic latex emulsion, polyurethane dispersion, non-gelling self-crosslinking acrylic emulsion, and glycol-based solvent.
A method for coating a plastic or wooden substrate, which method comprises:
- a) applying to the substrate a layer of a shelf stable coating composition comprising a mixture of chlorinated polyolefin-modified acrylic latex emulsion, polyurethane dispersion, non-gelling self-crosslinking acrylic emulsion, and glycol-based solvent, and
- b) drying the composition to form a hardened continuous film.
Dependencies are inferred from the claim text.