Patent ID: 11655156

Abstract:
The present invention concerns a process for preparing a composite of porous material/compound/hybrid organic-inorganic material having a 2:1 lamellar structure, said hybrid material having the following general formula I: Nax[(Mg3)(Alx(RSi)4−x)O8+x(OH)2]  (I) wherein  x is a number such that 0≤x<1.2 and  R represents a C1-C30 alkyl group, an aryl group, a (C1-C30 alkyl)aryl group or an O—(C1-C30 alkyl) group, it being possible for the alkyl group to be substituted with a group chosen from a phenyl, vinyl, aminopropyl or mercaptopropyl group,  and said compound being chosen from the group constituted of at least one active substance and at least one microorganism and mixtures thereof the process comprising:  a) the step of sol-gel synthesis of the hybrid organic-inorganic material having a 2:1 lamellar structure in the presence of the compound and of the porous material saturated with the compound;  b) the recovery of the composite. It also concerns a composite obtainable by means of this process, a composition comprising it and its use in particular for the fertilization of plants.