Protective water reversible clear coating for substrates
AssigneeConservation Technologies, Inc.
InventorsRichard Wolbers, Anthony Lagalante
Life of this patent
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Abstract
A protective, sacrificial, water-reversible, coating composition for the protection of substrates comprised of water, a volatile base, a film-forming acrylic polymer in a water dispersion form, a compatabilizing polymer, specifically poly (2-ethyl-2-oxazoline), a poly acidic polymer (pH specific in terms of its solubility), wherein said coating is both water applied and water reversible or re-soluble under specific pH conditions.
Claims19
A composition comprising:
- a pigment or a coloring agent, an aqueous medium, a volatile base, an acrylic film-forming polymer, a compatibilizing polymer selected from the group consisting of:
- poly (2-ethyl-2-oxazoline), poly (2-methyl-2-oxazoline), poly (2-isopropyl-2-oxazoline), and combinations thereof, and a poly acidic polymer, wherein said composition comprises between 0.1 and 10% by weight of the poly acidic polymer, 20-50% by weight of the compatibilizing polymer, and between 30 and 60% by weight of the acrylic film-forming polymer and wherein said composition is capable of being applied to a substrate using aqueous means and removed from said same substrate using an aqueous buffer at a specific pH.
A composition comprising latex-based aqueous paint, a poly acidic polymer, a compatibilizing polyoxazoline polymer selected from the group consisting of:
- poly (2-ethyl-2-oxazoline), poly (2-methyl-2-oxazoline), poly (2-isopropyl-2-oxazoline), and combinations thereof, and one or more of the following:
- a UV stabilizer, a coalescence material, a de-foaming agent, an anti-microbial agent, an agent to protect from temperature swings, an anti-corrosive agent, and a flattening agent;
- wherein the composition comprises the latex-based aqueous paint present between 30 and 60% by weight, the compatibilizing polymer is present at between 20 and 50% by weight, and the poly acidic polymer is present at between 0.1 and 10% by weight.
A composition comprising:
- a pigment or a coloring agent, an aqueous medium, an acrylic film-forming polymer, a compatibilizing polymer selected from the group consisting of:
- poly (2-ethyl-2-oxazoline), poly (2-methyl-2-oxazoline), poly (2-isopropyl-2-oxazoline), and combinations thereof, and a polyacidic polymer, wherein said composition comprises between 0.1% and 10% by weight of the poly acidic polymer, between 20% and 50% by weight of the compatibilizing polymer, and between 30% and 60% by weight of the acrylic film-forming polymer and, wherein the acrylic film-forming polymer is immiscible with the poly acidic polymer, absent the compatibilizing polymer, and a volatile base to adjust pH, wherein said composition forms a film on a substrate to which it is applied, said film being made up of the pigment or coloring agent, the aqueous medium, the acrylic film-forming polymer, the compatibilizing polymer, and the poly acidic polymer.
Dependencies are inferred from the claim text.