Pirelli & C. S. P. A.

Massimo Marini

Diego Tirelli

Massimiliano Pavan

Raffaella Donetti

Elio Ganci

Franco Peruzzotti

Franco Perruzzotti

A method for making a sound-insulating load-bearing floor, includes the following steps: providing a load-bearing floor; applying a sound-insulating material onto the load-bearing floor so as to form a substantially continuous coating layer; allowing the substantially continuous coating layer to dry; wherein the sound-insulating material includes: 40% by weight to 95% by weight, preferably 60% by weight to 90% by weight, with respect to the total weight of the sound-insulating material, of at least one rubber in a subdivided form; 5% by weight to 60% by weight, preferably 10% by weight to 40% by weight, with respect to the total weight of the sound-insulating material, of at least one binding agent including at least one water-dispersible polymer having a glass transition temperature (T) of &#x2212;50&#xb0; C. to +50&#xb0; C., preferably of &#x2212;40&#xb0; C. to +10&#xb0; C.

Method for making a sound-insulating load-bearing floor

A method for making a sound-insulating load-bearing floor, includes the following steps: applying a sound-insulating material over a load-bearing floor as to form a continuous coating layer; allowing the continuous coating layer to harden; applying a covering floor over said hardened continuous coating layer; wherein the sound-insulating material includes: 40% by weight to 95% by weight, preferably 60% by weight to 90% by weight, with respect to the total weight of the sound-insulating material, of at least one rubber in a subdivided form; 5% by weight to 60% by weight, preferably 10% by weight to 40% by weight, with respect to the total weight of the sound-insulating material, of at least one binding agent including: a first, component including at least one organic compound having at least one acid functional group or a derivative thereof, the first component having a Brookfield viscosity, measured at 23&#xb0; C., of 0.1 Pa&#xb7;s to 100 Pa&#xb7;s, preferably 0.2 Pa&#xb7;s to 50 Pa&#xb7;s, more preferably 0.5 Pa&#xb7;s to 20 Pa&#xb7;s; and a second component including at least one metal oxide or hydroxide.

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Milan, Italy

Massimo Marini