Abstract: A material intended to form grounds, layers or sublayers of terrains or of carriageways.It contains an ungraded granulated material such as sand or pulverulent materials of industrial origin to which bundles of glass filaments are added in a proportion from 0.01 to 0.1%.
Type:
Grant
Filed:
March 7, 1996
Date of Patent:
November 4, 1997
Assignee:
Orgel
Inventors:
Jean-Louis Fage, Claude Choudin, Jean-Baptiste Rieunier, Jean-Marc Letalenet
Abstract: The invention relates to a glass microfibre based paper, the said fibres being obtained by centrifugal processing of molten glass which is drawn by an annular gas flow at elevated temperature and velocity, which passes along the peripheral wall of the centrifuge. The centrifuge rotates at a peripheral velocity of between 50 and 20 m/sec. and the quantity of glass drawn is less than 6 tons per day and per meter of centrifuge periphery in the case of microfibres of 2 to 3 microns and less than 1 ton per day and per meter of centrifuge periphery in the case of microfibres of less than 1 micron.
Type:
Grant
Filed:
October 19, 1987
Date of Patent:
March 27, 1990
Assignee:
Orgel
Inventors:
Jean-Baptiste Rieunier, Marcel Fontar, Patrick B. Le Breton