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:
Jul. 21, 1987
Filed:
Jun. 11, 1984
Bohdan Gnyra, Kingston, CA;
Alcan International Limited, Montreal, CA;
Abstract
A method of treating formed refractory articles for protection against attack by molten aluminum metal, including the steps of impregnating surface portions of the formed articles with an aqueous solution of magnesium fluosilicate and heating to decompose the magnesium fluosilicate for producing, in situ, fluoride values that inhibit wetting of the treated surfaces by the molten metal. Colliodal alumina may be incorporated in the impregnating solution. A silicate coating may be applied over the impregnated surface portions; in such case, the coating when dried is itself impregnated with a further application of magnesium fluosilicate solution. The treated articles have anti-wetting fluoride values on or in their surface portions and exhibit enhanced resistance to attack by molten aluminum.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile