| http://www.w3.org/ns/prov#value | - An example of such a material is a silica gel reacted with a reactive silane intermediate such as (CH3)2 Si???O and then, with a reactive silane such as ##STR1## to give a dual treated material having...http://www.google.com/patents/US4782040?utm_source=gb-gplus-sharePatent US4782040 - Porous materials having a dual surfaceAdvanced Patent SearchPublication numberUS4782040 APublication typeGrantApp
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