TITANIUM OXIDE SOL AND ITS PREPARATION

PROBLEM TO BE SOLVED: To provide a method to prepare a titanium oxide sol having superior dispersibility in a neutral pH range, also having good dispersion stability over a long period of time and maintaining its dispersion stability even under irradiation with light. SOLUTION: A titanium oxide sol...

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Hauptverfasser:	FUKUI YASURO, ISHIBAI YOICHI
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F DYES INORGANIC CHEMISTRY MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POLISHES THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method to prepare a titanium oxide sol having superior dispersibility in a neutral pH range, also having good dispersion stability over a long period of time and maintaining its dispersion stability even under irradiation with light. SOLUTION: A titanium oxide sol is mixed with alkyl silicate as a dispersion stabilizer and the weight ratio (SiO2/TiO2) of the amt. expressed in terms of SiO2 of silicon in the alkyl silicate to the amt. expressed in terms of TiO2 of titanium in the titanium oxide ranges from 0.7 to 10. After the titanium oxide is mixed with the alkyl silicate, the resultant mixture is neutralized to prepare the objective titanium oxide sol.