Process of producing aspirin-containing capsules

Details Process of producing aspirin-containing capsules Process of producing aspirin-containing capsules

1973-05-29

1976-04-20

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

424 35, B01J 1302

Patent

active

039518515

ABSTRACT:
Process of producing aspirin-containing capsules which comprises (1) dispersing aspirin particles in a solution of a cellulose derivative in an organic solvent partially miscible with water; (2) adding the dispersion to an encapsulation medium comprising water containing organic solvent(s) partially miscible with water with or without aspirin; (3) stirring the mixture to form a fine dispersion of the aspirin; and (4) evaporating off the organic solvent to deposit the cellulose derivative around the aspirin particles.

REFERENCES:
patent: 3242051 (1966-03-01), Hiestand et al.
patent: 3645911 (1972-02-01), Van Besauw et al.
patent: 3691090 (1972-09-01), Kitajima et al.

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