Patent ID: 11859097
Assignee: GREEN SOLUTION LLC
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 2:
3. A method of preparing a paint composition, comprising:
a) preparing a main raw material by mixing, based on the total weight of the main raw material, calcium sulfoaluminate (3Ca3Al2O3CaSO4) having a fineness of 6,000 to 12,000 cm2/g at 10 to 30 wt %, expandable graphite at 20 to 40 wt %, calcium carbonate (CaCO3) having a particle size of 325 mesh or less at 10 to 40 wt %, a foaming agent at 1 to 2 wt %, a fluidizing agent at 0.1 to 1 wt %, a preservative at 0.1 to 1 wt %, an antifoaming agent at 0.1 to 1 wt %, hydroxymethyl cellulose or methyl cellulose having a viscosity of 5,000 to 30,000 cP at 0.01 to 0.5 wt %, anhydrous gypsum at 10 wt % or less, a microporous ceramic having a particle size of 325 mesh or less at 30 wt % or less, a phosphorus-based flame retardant at 20 wt % or less, and TiO2 at 5 wt % or less;
b) preparing a liquid raw material by mixing, based on the total weight of the liquid raw material, one or more selected from the group consisting of an epoxy resin, an EVA resin, and an acrylic resin at 20 to 50 wt % and water at 50 to 80 wt %; and
c) mixing the main raw material and the liquid raw material at the weight ratio of 1:1.