Method of preparing mixtures of active ingredients and excipient

Details Method of preparing mixtures of active ingredients and excipient Method of preparing mixtures of active ingredients and excipient

1990-07-18

1992-12-08

Raymond, Richard L.

Chemistry: fertilizers

Processes and products

Forms or conditioning

71121, 71114, 366 3, 514 89, 514117, 514263, 514531, A01N 3722

Patent

active

051694336

ABSTRACT:
Environmentally-acceptable intimate mixtures of active ingredients and excipients which meet economic performance levels are prepared without use of harmful solvents by solubilizing and mixing the components in liquid carbon dioxide maintained under pressure and then slowly reducing the pressure to convert the carbon dioxide to the gaseous phase and venting the gaseous carbon dioxide.

REFERENCES:
patent: H273 (1987-08-01), Melvin et al.
patent: 3547620 (1970-12-01), Olin
patent: 3900469 (1975-08-01), Cohen
patent: 4546612 (1985-09-01), Santhanam
patent: 4721420 (1988-07-01), Santhanam et al.
patent: 5000775 (1991-03-01), Grabiak et al.
McRae et al. "Solubility of Hop .alpha.- and .beta.-acids in Liquid Carbon Dioxide", J. Inst. Brew. 86(6) pp. 296-298 (1980).
Bett et al. "Solubility of Pesticides in Liquid Carbon Dioxide", J. Inst. Brew. 86(6) p. 298 (1980).

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