Porous inorganic particles modified with amino and carboxyl grou

Details Porous inorganic particles modified with amino and carboxyl grou Porous inorganic particles modified with amino and carboxyl grou

1987-06-24

1989-03-28

Kight, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

523220, 210263, 210656, 2105101, 2523152, 2523155, 2523156, 2523157, C08J 932

Patent

active

048164992

ABSTRACT:
Porous inorganic particles, such as silica gel particles, modified with amino-containing groups and carboxyl-containing groups are disclosed. The modified porous particles, useful as packing materials for column chromatography, are obtained by a method including the steps of providing porous, amino group-carrying, inorganic particles, and converting a portion of the amino groups into carboxyl-containing groups.

REFERENCES:
patent: 4333847 (1982-06-01), Tran et al.
patent: 4421684 (1983-12-01), Nakashima et al.

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