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:
Jun. 04, 2013
Filed:
Oct. 26, 2009
Thierry Consales, Pernes les fontaines, FR;
Michel Gaubil, Les Angles, FR;
Thierry Consales, Pernes les fontaines, FR;
Michel Gaubil, Les Angles, FR;
Saint-Gobain Centre de Recherches et d'Etudes Europeen, Courbevoie, FR;
Abstract
A powder including, in percentages by weight: (a) 94% to 99% of particles of at least one refractory material, the main constituent(s) of which are alumina and/or zirconia and/or silica; (b) 1% to 6% of a hydraulic cement; (c) 0 to 0.03% of organic fibers; (d) optionally, 0.075% to 1% of a surfactant; and (e) optionally, a setting accelerator, where the fraction of particles having a size below 40 μm being distributed, in percentages by weight relative to the weight of the powder, in the following manner: (1) fraction<0.5 μm: ≧4%, (2) fraction<2 μm: ≧5%, fraction<10 μm: ≧16%, and fraction<40 μm: 29-45%, where the proportion of zirconia in the fraction of particles having a size smaller than 10 μm, called 'fines', is between 35% and 75% by weight relative to the total weight of said fraction.