Luc Desrosiers has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
Abstract: The present invention relates to a fibrous-like synthetic forsterite obtained by the calcination of chrysotile asbestos fiber at a temperature of from 650.degree. to 1450.degree. C., said synthetic forsterite being characterized by having an MgO:SiO.sub.2 ratio lower than 1.1, a raw loose density of from 3 to 40 pcf, a thermal conductivity "k" factor of from 0.25 to 0.40 BTU. In/Hr. .degree. F. Ft.sup.2 and a fusion point of from 1600.degree. to 1700.degree. C. which is useful as an insulating material.
September 16, 1988
Date of Patent:
January 15, 1991
Pierre Delvaux, Luc Desrosiers, Marcel Gouin
Abstract: There is disclosed a granular product suitable for use as foundry sands and obtained from asbestos tailings calcined at a temperature of from 1250.degree. to 1450.degree. C., said asbestos tailings having an MgO:SiO.sub.2 ratio greater than 1.0, the granules constituting the granular product being characterized by having a thermal expansion at 1000.degree. C. of not more than 1.0% and a particle size of between -20 to +200 mesh (Tyler), the granules being further characterized by being made up mainly of particles of enstatite bonded by gruenerite and fayalite, and substantially unreactive to basic oxides present in the cast metal.
April 26, 1984
Date of Patent:
August 5, 1986
Societe Nationale de l'Amiante
Jean M. Lalancette, Jean P. Chevalier-Bultel, Luc Desrosiers