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. 09, 2000
Filed:
Oct. 15, 1997
Sumitomo Metal Mining Co., Ltd., Tokyo, JP;
Abstract
A coating solution for forming a selectively transmitting film which is effective for cutting off ultraviolet radiation in a wide range of wavelengths up to about 400 nm, maintains its stability and effect for a long time, has also a power of cutting off heat rays and a controlled transmittance of visible light, has any desired color produced by the addition of fine particles of an appropriate inorganic substance, and is applicable to glass in any existing building, or the like by a simple and inexpensive method using an appropriately selected binder, and a selectively transmitting film and a selectively transmitting multilayer film which are formed from the solution. The solution is a dispersion of fine particles having an average diameter of 100 nm or less of at least one of ruthenium oxide, titanium nitride, tantalum nitride, titanium silicide, molybdenum silicide, lanthanum boride, iron oxide and iron hydroxide oxide. It may also contain at least one of the alkoxides of silicon, zirconium, titanium and aluminum, and partially hydrolyzed polymers of those alkoxides, or a synthetic resin as a binder. The selectively transmitting film is formed by coating a base material with the solution, and hardening it. The selectively transmitting multilayer film has another film formed on the selectively transmitting film and containing at least one of the alkoxides of silicon, zirconium, titanium and aluminum, partially hydrolyzed polymers of those alkoxides, and a synthetic resin.