C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
23/192
C01B 33/12 (2006.01) C08K 3/36 (2006.01) C09C 1/30 (2006.01) C10M 113/12 (2006.01)
Patent
CA 1139082
METHOD FOR INCREASING THE BULK WEIGHT OF SILICON DIOXIDE AND THE USE OF SILICON DIOXIDE SO TREATED ABSTRACT OF THE DISCLOSURE A method for increasing the bulk weight of silicon dioxide with a surface of at least 50m2/g by means of subat- mospheric pressure applied at a filter face, wherein the sili- con dioxide is moved by means of a conveyor screw, whose lon- gitudinal axis is arranged parallel with respect to the filter face and which preferably has a decreasing thread pitch in feeding direction. Furthermore, the invention relates to the use of the treated silicon dioxide as a filler material for polymeric masses, especially diorganopolysiloxane, which is storeable in the absence of water and when admixed with water at room temperature results in a hardened elastomer mass.
337426
Dummer Gerhard
Grune Burkhard
Kratel Gunter
Niessner Peter
Stohr Gunter
Mcfadden Fincham
Wacker-Chemie Gmbh
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