Plastic and nonmetallic article shaping or treating: processes – Forming articles by uniting randomly associated particles – Autogenously or by activation of dry coated particles
Patent
1992-05-20
1992-11-03
Theisen, Mary Lynn
Plastic and nonmetallic article shaping or treating: processes
Forming articles by uniting randomly associated particles
Autogenously or by activation of dry coated particles
264109, 23293R, B29C 4300
Patent
active
051604701
ABSTRACT:
The present invention is a simple method for densifying colloidal silica. The method comprises feeding colloidal silica, recovered from a smelting process and having a density within a range of about 50 kg/m.sup.3 to 300 kg/m.sup.3, by a nearly horizontal feed means to a pair of vertically juxtaposed pressure rolls having surface depressions positioned so that the surface depressions of one roll corresponds to the undepressed surface portions of the other roll. The method does not require deaeration of the colloidal silica prior to densification and can be run as a continuous process. Colloidal silica densified by the present process is especially suitable for use as a reinforcing agent for concrete.
REFERENCES:
patent: 2729855 (1956-01-01), Titus et al.
patent: 3114930 (1963-12-01), Oldham et al.
patent: 3632247 (1972-01-01), Loffler
patent: 3664385 (1972-05-01), Carter
patent: 3832434 (1974-08-01), Flood et al.
patent: 3892832 (1975-07-01), Schey
patent: 4126423 (1978-11-01), Kongsgaarden
patent: 4126424 (1978-11-01), Kongsgaarden
patent: 4325686 (1982-04-01), Leon et al.
patent: 4326852 (1982-04-01), Kratel et al.
patent: 4436682 (1984-03-01), Knopp
patent: 4780108 (1988-10-01), Razzano
patent: 5049333 (1991-09-01), Wolfe et al.
Graville Steven W.
Reese Clifford C.
Boley William F.
Dow Corning Corporation
Theisen Mary Lynn
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