04904632 is referenced by 27 patents and cites 14 patents.

A method is provided for modifying a porous chromatographic material such as silica, alumina, thoria, titania or magnesia, which involves the steps of halogenating the surface hydroxyl groups of such material, and reacting the halogenated surface with a suitable alkylation reagent. The method gives a direct surface-to-carbon linkage in a high-yield reaction.

Title
Surface-modified chromatographic separation material
Application Number
7/64329
Publication Number
4904632
Application Date
June 19, 1987
Publication Date
February 27, 1990
Inventor
Sally A Swedberg
793 Allen Ct., Palo Alto, 94303
CA, US
Joseph J Pesek
4142 Rosenbaum Ave., San Jose, 95136
CA, US
Agent
Irell and Manella
IPC
B01J 20/30
B01J 20/10
B01J 31/02
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