The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 22, 1990
Filed:
Feb. 24, 1988
Nippon Shokubai Kagaku Kogyo Co., Ltd., Osaka, JP;
Abstract
A method for the production of inorganic minute globular particles, which comprises forming a W/O type sol emulsion by mixing at least one metal oxide-containing sol selected from the group consisting of (a) metal oxide sols and (b) mixed sols containing said metal oxide sols and an inorganic compound, an alkoxide, or a sol of at least one other element with an organic solvent insoluble or sparingly soluble in water in the presence of a surfactant; mixing said emulsion with a basic substance or an electrolyte thereby converting the sol forming the water layer in said emulsion into gel thereby obtaining globular gel particles; and subsequently heating the globular gel particles thereby expelling from the system the water in the globular gel particles in the form of a mixture thereof with the organic solvent.