Method for the production of fillers modified with organosilicon compounds, the fillers produced in this manner and their use
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United States of America Patent
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May 26, 1992
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N/A
app pub date -
Feb 15, 1991
filing date -
Feb 16, 1990
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Abstract
A two-stage method for the surface modification of natural or synthetic, oxide or silicate fillers using organosilicon compounds of the formulas: [R.sub.n.sup.1 (RO).sub.3-n Si--(Alk).sub.m --(Ar).sub.p ]2 [S] x or [R.sub.n.sup.1 (RO).sub.3-n Si--(Alk).sub.m --(Ar).sub.p SCN in which filler and compound are intensively mixed without the addition of further solvents and the homogenized mixture is subjected in a preheated mixer to the hydrophobing reaction.
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