Incorporation of finely divided additives at the surface of micr

Details Incorporation of finely divided additives at the surface of micr Incorporation of finely divided additives at the surface of micr

1981-04-10

1983-07-19

Lovering, Richard D.

Compositions

Radioactive compositions

Nuclear reactor fuel

71DIG1, 25217413, 252543, 252DIG13, 424 35, 424 37, 424 70, B01J 1302

Patent

active

043942873

ABSTRACT:
Microcapsules are prepared en masse which contain a substantially water-insoluble core and, incorporated at their surface under a thin film of hydrophilic polymeric colloid, a substantially water insoluble finely divided additive. In the preparation, a primary microcapsule is made in an aqueous vehicle to surround the water-insoluble core, the finely divided additive is then added under stirring to form a fine dispersion and cationic hydrophilic polymeric colloid solution is added to cause the colloid to envelop the additive and deposit it on the capsule wall under a thin film.

REFERENCES:
patent: 3179600 (1965-04-01), Brockett
patent: 3190837 (1965-06-01), Brynko et al.
patent: 3574132 (1971-04-01), Mosier et al.
patent: 3676363 (1972-07-01), Mosier
patent: 4115315 (1978-09-01), Marinelli

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