Film forming coating composition containing surface treated barium sulfate, and methods of use
First Claim
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1. A flowable liquid coating composition useful for forming a film, comprising, in admixture, a resin and particles comprising barium sulfate wherein barium sulfate at an exterior surface of the particles has been surface treated with an organosilane containing an amino moiety.
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Abstract
A coating composition comprising, in admixture, a resin and aminosilane surface-treated barium sulfate particles, and methods of using it as a film forming coating. Low blistering, highly corrosion resistant and low viscosity coating compositions are provided.
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Citations
30 Claims
- 1. A flowable liquid coating composition useful for forming a film, comprising, in admixture, a resin and particles comprising barium sulfate wherein barium sulfate at an exterior surface of the particles has been surface treated with an organosilane containing an amino moiety.
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16. A dry film, comprising a dried coating having an average film thickness of about 1×
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3 to about 25×
10−
3 inch and the coating having a composition comprising a thermoset resin into which is dispersed particles comprising barium sulfate wherein barium sulfate at an exterior surface of the particles has been surface-treated with organosilane containing an amino moiety.
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17. A method of providing a flowable liquid coating film on a solid substrate surface comprising:
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applying a flowable liquid coating composition on the substrate surface as a film, wherein the coating composition comprises a resin system, and a dispersion in the resin system, wherein the dispersion comprises a pigment including particles comprising barium sulfate wherein barium sulfate at an exterior surface of the particles has been surface treated with an organosilane containing an amino moiety, and drying or permitting drying of the film to form a dried film from the applied coating composition, which film is attached to the solid substrate surface. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 30)
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28. A coating composition useful for forming a film, comprising, in admixture, a resin and barium sulfate particles that have been surface treated with an organosilane containing an amino moiety, wherein the coating composition has a viscosity more than 50% lower than a viscosity measured for the same coating composition except prepared with the barium sulfate lacking surface treatment with the organosilane having the amino moiety, wherein the viscosity measurement is made in centipoise with a Brookfield RVT Rotational Viscometer.
Specification