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:
Oct. 24, 1995
Filed:
Jul. 07, 1993
Yoshitane Watanabe, Funabashi, JP;
Keitaro Suzuki, Funabashi, JP;
Tetsunori Matsukura, Sodegaura, JP;
Nissan Chemical Industries Ltd., Tokyo, JP;
Abstract
A stable sol which comprises colloidal particles of modified stannic oxide-zirconium oxide composite having a particle size of from 4.5 to 60 nm, said colloidal particles consisting essentially of, as nuclei, colloidal particles of stannic oxide-zirconium oxide composite having a particle size of from 4 to 50 nm and having a structure in which colloidal particles of stannic oxide and colloidal particles of zirconium oxide are bonded to each other in a ratio, by weight of these oxides, of from 0.02 to 1.0 as ZrO.sub.2 /SnO.sub.2, and, as a coating on the surface of the nuclei, colloidal particles of tungstic oxide-stannic oxide composite having a particles size of from 2 to 7 nm and a WO.sub.3 /SnO.sub.2 weight ratio of from 0.5 to 100, and which has a total content of metal oxides of from 2 to 50 wt %.