Semipermeable microcapsules containing a silica gel

Details Semipermeable microcapsules containing a silica gel Semipermeable microcapsules containing a silica gel

1974-07-11

1976-05-04

Dees, Carl F.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252 6253, 252429B, 252448, 252477R, B01J 2108, B01J 3700

Patent

active

039546780

ABSTRACT:
Described are semipermeable microcapsules which comprise an outer semipermeable polymeric skin encapsulating a silica gel. These microcapsules may be used as chromatographic media or may be modified to contain a homogeneous or heterogeneous catalyst and/or a ferromagnetic material.

REFERENCES:
patent: 2697066 (1954-12-01), Sieg
patent: 2971916 (1961-02-01), Schleicher et al.
patent: 3041289 (1962-06-01), Katchen et al.
patent: 3331786 (1967-07-01), Bleuenstein
patent: 3661620 (1972-05-01), Dekking et al.
patent: 3737337 (1973-06-01), Schnoring et al.

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