| 摘要 |
<p>Solvent free, stable adhesive and thickening materials (A) based on bitumen emulsion comprises aqueous polyacrylic acid ester dispersion and/or polyacrylic acid ester copolymerisate in an aqueous dispersion, where the glass transition temperature of the aqueous free polymerisate and/or copolymerisate is less than 5[deg]C, and the material contains less than 20 mass% of water. An independent claim is included for a method for the preparation of (A) comprising preparing an ammonical water and aqueous casein solution, adding the prepared mixture and bentonite thickener into the aqueous acrylate dispersion or acrylate-copolymerisate-dispersion, and finally adding plasticizer, anti-foaming agent, preservative, acrylate thickener, bitumen emulsion, chalk powder, slate flour and/or rock flour, where the viscosity of (A) is adjusted using polyurethane thickener.</p> |
