Patent ID: 7981322

Claim:
A method for the protection from oxidation and/or electromagnetic radiation of a compound sensitive to oxidation and/or to electromagnetic radiation, the method comprising contacting said compound with at least one metal organosilicate polymer compound, in the form of particles, having one of the following formulae I and II: R 4 Si 4 Al 2 O 8 (OH) x , Formula I: R 8 Si 8 M 6 O 16 (OH) y , Formula II: in which: each R is chosen, independently of the others, from the group formed by a substituted or unsubstituted and linear or branched alkyl group, a substituted or unsubstituted and linear or branched alkenyl group, a substituted or unsubstituted aryl group and a substituted or unsubstituted benzyl group, x≧2, y≧4, in the formula I, the Si/Al ratio is between 1.8 and 1.3 inclusive, in the formula II, M is chosen from the group formed by calcium, magnesium, zinc, strontium and the mixtures of these, and the Si/M molar ratio is between 1.8 and 1.3 inclusive, and wherein the compound sensitive to oxidation and/or to electromagnetic radiation is an organic fluorophoric compound or a benzotriazole compound.