METHOD OF PHOTOCHEMICALLY MODIFYING SOLID MATERIAL SURFACE

PROBLEM TO BE SOLVED: To provide a method of modifying a solid material surface by which the permanent surface modification is carried out by a photochemical reaction even with the irradiation with ultraviolet rays having relatively small energy no matter what solid material is to be modified. SOLUT...

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Hauptverfasser:	TOKUNAGA HIROTO, MURAHARA MASATAKA, MOCHIZUKI SHIGENARI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G ARTIFICIAL STONE CEMENTS CERAMICS CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL COMPOSITIONS BASED THEREON COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE DIFFUSION TREATMENT OF METALLIC MATERIAL GENERAL PROCESSES OF COMPOUNDING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LIME, MAGNESIA METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS REFRACTORIES SLAG SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF NATURAL STONE WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method of modifying a solid material surface by which the permanent surface modification is carried out by a photochemical reaction even with the irradiation with ultraviolet rays having relatively small energy no matter what solid material is to be modified. SOLUTION: The method of photochemically modifying the solid material surface includes the photochemical modification of the solid material surface by forming a thin layer of a liquid state compound containing chemical species on the solid material surface, and irradiating the solid material surface with ultraviolet rays through the thin film to excite the solid material surface and the compound to introduce the chemical species into the solid material surface. Before the thin film is formed on the solid material surface, the solid material surface is treated with activation energy or an oxidizing agent to accelerate the photochemical modification of the solid material surface. COPYRIGHT: (C)2004,JPO&NCIPI