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:
Jan. 13, 2009
Filed:
Mar. 09, 2005
Yoshinari Koyama, Sodegaura, JP;
Motoko Asada, Sodegaura, JP;
Yoshinari Koyama, Sodegaura, JP;
Motoko Asada, Sodegaura, JP;
Nissan Chemical Industries, Ltd., Tokyo, JP;
Abstract
There is provided a stable sol comprising modified stannic oxide-zirconium oxide complex colloidal particles, wherein the particles are formed by coating as nuclei stannic oxide-zirconium oxide complex colloidal particles in which stannic oxide colloidal particles obtained by a reaction of metal tin, an organic acid and hydrogen peroxide is bonded to zirconium oxide colloidal particles with tungsten oxide-stannic oxide-silicon dioxide complex colloidal particles. The sol has a high refractive index and is improved in water resistance, moisture resistance and weather resistance, and can be used by mixing with a hard coating paint as a component for improving properties of a hard coating film applied on a plastic lens surface.