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:
Oct. 06, 1987
Filed:
Dec. 19, 1984
Dominique Belot, Le Chesnay, FR;
Jean-Yves Rade, Le Chesnay, FR;
Jean-Francois Piffard, Suresnes, FR;
Christian Larquet, Guyancourt, FR;
Philippe Cornut, La Celle-Saint-Cloud, FR;
Abstract
Silicon hydrides are produced by acid hydrolysis of ternary silicon alloys. According to the process there are made to react an industrial ternary alloy of the formula M.sub.x M.sup.2.sub.y Si.sub.z, in which M.sup.1 is a reducing metal, M.sup.2 is an alkali alkaline-earth metal, with a dilute acid selected from hydracids and orthophosphoric acid, at a concentration of 2N to 6N, by adding the ternary alloy in the form of fine powder to the acid, the reaction being preformed between ambient temperature and 90.degree. C. The various hydrides are condensed, and separated by fractional evaporation under partial vacuum. The silicon hydrides--silane, disilane and higher polysilanes--after purification can be used as silicon vectors, depending on their chemical nature, particularly in the industries of electronic components, photovolaitic cells, photocopier drums and for frosting light bulbs by the dry method.