Lightweight structural finish
AssigneeConstruction Research & Technology GmbH
InventorsMarkus Bohler, Michael Flynn
Life of this patent
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Abstract
A lightweight finish composition, method of production and a method of application are provided. The lightweight finish composition comprises a resin dispersion, alkali metal phosphate, alkylolammonium salt of a polyfunctional polymer, and lightweight aggregate such as silica spheres. The lightweight aggregate has a density and weight that is less than those of sand. The combination of alkali metal phosphate and alkylolammonium salt of a polyfunctional polymer stabilizes the lightweight finish composition by preventing the lightweight aggregate from absorbing water, after production of the lightweight finish composition.
Claims8
A method of producing a lightweight finish composition comprising:
- a) combining lightweight aggregate with a combination of an alkali metal phosphate and an alkylolammonium salt of a polyfunctional polymer to form a lightweight aggregate wetted out by the combination of the alkali metal phosphate and the alkylolammonium salt of a polyfunctional polymer;
- and
- b) combining the wetted out lightweight aggregate with a resin dispersion to produce the lightweight finish composition, wherein the alkali metal phosphate is present in an amount of from about 0.1% to about 0.9% and the alkylolammonium salt of a polyfunctional polymer is present in an amount of from about 0.1% to about 0.9% by weight of the lightweight finish composition.
A method of finishing a wall comprising the steps of:
- a) combining lightweight aggregate with a combination of an alkali metal phosphate and an alkylolammonium salt of a polyfunctional polymer to form a lightweight aggregate wetted out by the combination of the alkali metal phosphate and the alkylolammonium salt of a polyfunctional polymer;
- b) combining the wetted out lightweight aggregate with a resin to produce a lightweight finish composition, wherein the alkali metal phosphate is present in an amount of from about 0.1% to about 0.9% and the alkylolammonium salt of a polyfunctional polymer is present in an amount of from about 0.1% to about 0.9% by weight of the lightweight finish composition;
- and
- c) applying the lightweight finish composition to the wall.
Dependencies are inferred from the claim text.