Composite based on a lamellar material and a porous material comprising an active substance and/or a microorganism
US11655156B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 22, 2019 |
| Grant date | May 23, 2023 |
| Priority date | — |
| Expiry date | Nov 16, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC05G5/40
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.