Process for preparing free-flowing ethylcellulose microcapsules

Details Process for preparing free-flowing ethylcellulose microcapsules Process for preparing free-flowing ethylcellulose microcapsules

A - Human Necessities

61

K

117/45.2

A61K 9/62 (2006.01) A61K 9/50 (2006.01) B01J 13/08 (2006.01) B01J 13/12 (2006.01)

Patent

CA 1212868

-22- ABSTRACT OF DISCLOSURE A process for preparing free-flowing microcapsules by taking advantage of the phase-separation of ethylcellulos in cyclohexane is disclosed. In this process, a hydrocarbon compound which is soluble in cyclohexane and have a molecular weight of 150 to 3,000 and a solublity parameter (.delta., at 25°C) of 7 to 10 (cal/cm3)1/2 is used as the phase-separation-inducing agent.

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