Amine-accelerated process for the surface treatment of colloidal silica and products thereof
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United States of America Patent
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Dec 15, 2015
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Jun 30, 2011
filing date -
Apr 5, 2011
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Abstract
This invention relates to the use of certain amine promoters in processes for surface-treating colloidal silica nanoparticles with selected aromatic aminosilanes, aromatic aminoalkylsilanes, and secondary and tertiary aliphatic aminosilanes. This process provides surface-modified nanoparticle colloidal silica without causing the silica nanoparticles to gel, agglomerate, or aggregate.
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