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. 11, 2006
Filed:
Nov. 19, 2002
Jacques Marius Louis Guigonis, Pernes, FR;
Thierry Claude Consales, Althen des Paluds, FR;
Jacques Marius Louis Guigonis, Pernes, FR;
Thierry Claude Consales, Althen des Paluds, FR;
Saint-Gobain Centre de Recherches Et d'Etudes Europeen, Courbevoie, FR;
Abstract
An unwrought refractory composition, in particular for producing glass furnace hearths, includes a base mixture comprising in wt. %: 1 to 6% of a hydraulic cement, and 94 to 99% of particles of at least a refractory material mainly consisting of alumina (AlO), zirconia (ZrO) and silica (SiO), the fraction of the particles of the base mixture having a size less than 40 μm being distributed in wt. % relative to the weight of the base mixture, as follows: fraction<0.5 μm: ≧4%; fraction<2 μm: ≧5%; fraction<10 μm: ≧16%; fraction<40 μm: 29–45%, the refractory composition further comprising, in wt. % relative to the weight of the base mixture: 0.02 to 0.08% of organic fibers, and 0.075 to 1% of a surfactant.