Nova Patents
EP1559753A2

Antibacterial potassium-silicate-based paint containing titanium dioxide in anatase form.

Abstract

This invention relates to a photocatalytic paint with an antibacterial and antipollutant effect, designed for use in residential and public buildings, which contains a percentage of an element with photocatalytic activity, in particular a mixture of titanium dioxides in the form of anatase that promotes oxidation-reduction reactions of the pollutants present in the air. In particular it relates to a paint in which the mixture of titanium dioxides chosen has a particle size such that it has a high specific surface area, and which contains a suitable quantity of potassium silicate instead of the common organic binders normally used in paint. <??>The result is a paint which does not deteriorate with time, and which contains a compound able to eliminate the pollutants present in the air and prevent the blackening characteristic of exposed surfaces.

Term

Term ended

Projected expiry passed 24 December 2024, 1.7 years ago.

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7 claims: 2 independent, 5 dependent

  1. 1
    Paint with an antibacterial and anti-smog effect, characterised in that it includes a suitable quantity of titanium dioxide in anatase form.
  2. 6
    Paint with an antibacterial and anti-smog effect, characterised in that it has the following composition:Mixture of titanium dioxides10 to 30%potassium silicate10 to 30%silicate stabiliser0.1 to 0.9%anti-mould agent0.1 to 0.4%hydroxymethylcellulose0.1 to 0.6%dispersing agent0.1 to 0.6%antifoaming agent0.1 to 0.6%ultra-fine carbonate5 to 15%various fillers5 to 15%filler/extender1 to 8%water repellent1 to 5%acrylic emulsion0 to 6%white spirit0 to 2%cellulose fibres0 to 1%water10 to 35% wherein the various percentages are indicated in weight.
Independent claims2