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:
Mar. 12, 1991
Filed:
Oct. 03, 1986
Fawzy G Sherif, Stony Point, NY (US);
Stauffer Chemical Company, Shelton, CT (US);
Abstract
A fast-setting magnesium phosphate one-component adhesive/grout is used to bond tiles, e.g. ceramic tiles, to a substrate, e.g. sheet-rock. The grout comprises an activator prepared by e.g., mixing diatomaceous earth with at least a sufficient amount of an ammonium phosphate solution to form a paste then heating the paste to coat the pores of the diatomaceous earth and result in a dry solid which is then milled to yield the activator, magnesium oxide, diammonium phosphate, boric acid, and sufficient water to form a paste. This grout is applied to the surfaces to be bonded which are then brought together to form a composite which is allowed to set at ambient temperatures forming a durable bond in about three hours.