US Patent Application 20100069618 - PROCESS FOR PREPARING MATERIALS BY GRAFTING HALOGENATED PHOSPHORUS-CONTAINING GROUPS ONTO AN INORGANIC SURFACE
Inventors
AssigneeUS Classes534/15, RARE EARTH METAL CONTAINING (At. No. 21, 39, 57-60 or 62-71)568/8, PHOSPHORUS CONTAINING562/400, Carboxylic acids and salts thereof564/15, Phosphorus attached indirectly to amino nitrogen by nonionic bonding562/30, Sulfonic acids or salts thereof (i.e., compounds containing the sulfonate group, -S(=O)(=O)-O- wherein the single bonded oxygen is bonded directly to hydrogen, or to a group IA or IIA light metal or to substituted or unsubstituted ammonium)568/13, Sulfur or oxygen containing556/13, Phosphorus containing556/174, Phosphorus containing556/405, Chalcogen bonded directly to silicon556/173Silicon containingAttorney, Agent or FirmForeign Documents
International ClassesC07F 9/02C07F 5/06 C07F 7/02 C07F 5/00 Abstract textThe invention concerns a process for preparing a hybrid organic-inorganic material (HOIM) with phosphorus-containing bridges between the surface of an inorganic substrate containing an element M and one or more organic groups of the covalent M-O-P-R type, said process using, as a precursor for said organic group or groups, at least one organophosphorus acid halide with formula RxP(O)Xy in which x=1 or 2, y=3−x, X being a halogen and R designating at least one organic alkyl, aryl or aryl-alkyl group. Non-exhaustive applications for the hybrid organic-inorganic material obtained by the process of the invention are in the fields of anti-corrosion, lubrication, microelectronics, nanotechnologies, composite materials, heterogeneous catalysis, supported catalysis, depollution and biomedical applications. |
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