Process for preparing ultrafine particles of organic compounds

Details Process for preparing ultrafine particles of organic compounds Process for preparing ultrafine particles of organic compounds

1986-05-22

1990-04-03

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Gas or vapor deposition of article forming material onto...

264 5, 427 2, 427180, 4272556, B29B 900

Patent

active

049138650

ABSTRACT:
A method for manufacturing ultrafine particles of hardly water-soluble or water-insoluble organic compounds is disclosed herein, and the method includes heating and evaporating the organic compound in a vacuum vessel in which an inert gas is introduced in a desired pressure, then condensing and depositing the vaporized organic compound on a recovering means cooled, the resulting ultrafine particles exhibiting a high negative zeta potential sufficient to form a stable water dispersion thereof.

REFERENCES:
patent: 3663265 (1972-05-01), Lee et al.
patent: 4395440 (1983-07-01), Abe et al.
patent: 4543275 (1985-09-01), Akashi et al.
patent: 4582731 (1986-04-01), Smith
patent: 4654229 (1987-03-01), Morita et al.
patent: 4724106 (1988-02-01), Morimoto et al.

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