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AssigneeBASF SE
InventorsRajan R. Iyer, Richard Berube, Michael B. Sigman, Sharad Mathur, Kenneth W. Folmar, John D. Serafano, Ashok Khokhani, Jennifer Rigney, James Royce Godfrey
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A method for preparing an aqueous based coating system, and coating systems made thereby, for coating onto paper and/or paperboard for providing barrier to liquid, moisture vapor, oil and grease including a pigment and a polymer emulsion system or natural based binding system. One alternative of the method includes surface treating a pigment to form a pigment system and mixing a polymer emulsion system or natural based binding system with the pigment system. Another alternative of the method includes mixing a pigment and polymer emulsion system or natural based binding system and hydrophobizing the polymer emulsion system or natural based binding system by adding silanes, siloxanes, siloxane/silicone resin blends, or their carbon based analogs.
A method for preparing an aqueous based coating system comprising:
An aqueous based coating system comprising a polymer emulsion system or natural-based binding system and a pigment system,
A coating system comprising a pigment and a polymer emulsion or natural-based binding system wherein the pigment has been surface treated with (1) a styrene-acrylic latex emulsion, a styrene-butadiene latex emulsion, or a blend of a styrene acrylic latex emulsion and a styrene butadiene latex emulsion and (2) a silane, a siloxane, a siloxane/silicone resin blend, or a carbon-based analog thereof, and wherein the styrene-acrylic latex emulsion, the styrene-butadiene latex emulsion, or the blend of the styrene acrylic latex emulsion and the styrene butadiene latex emulsion forms a film, and wherein the pigment has been modified by a thermal treatment process.
Dependencies are inferred from the claim text.