Catalyst – solid sorbent – or support therefor: product or process – Solid sorbent – Organic
Patent
1988-09-22
1990-08-21
Konopka, Paul E.
Catalyst, solid sorbent, or support therefor: product or process
Solid sorbent
Organic
55386, 2101982, 2101983, 210656, 427387, 428405, B01J 2032, B01J 2022, B01D 1508, B32B 514
Patent
active
049506340
ABSTRACT:
Dual zone porous materials having an external zone and an internal zone are prepared by contacting a suspension of a porous support, such as particulate silica, in an aprotic solvent with an organosilane mixture of a first organosilane having first silyl groups and a second organosilane of a second type in order to form first silyl groups predominantly or the external surfaces of the porous support and second silyl groups predominantly on the internal surfaces of the porous support.
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Tangney Thomas J.
Williams Dwight E.
Dow Corning Corporation
Konopka Paul E.
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