Preparation of powder granules by liquid condensation...

Details Preparation of powder granules by liquid condensation... Preparation of powder granules by liquid condensation...

2007-01-30

2007-01-30

Theisen, Mary Lynn (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Formation of solid particulate material directly from molten...

By extrusion spraying or gravity fall through orifice

C264S682000, C264S115000

Reexamination Certificate

active

10383649

ABSTRACT:
A method for preparing powder granules by a liquid condensation process comprising preparing a slurry by mixing powders, a binding agent and a binding agent soluble solvent, dropping the slurry to a binding agent insoluble solvent to fix the binding agent so that the binding agent can not be released to a surface of a droplet of the slurry, coagulating the droplet by solvent exchange between the soluble solvent inside the droplet and the insoluble solvent at the surface of the droplets, and separating the coagulated droplet from the insoluble solvent, drying it and completely removing a residual solvent.

REFERENCES:
patent: 4526734 (1985-07-01), Enomoto
patent: 689 19 942 (1995-07-01), None
patent: 0466986 (1990-10-01), None
patent: 0 356 240 (1994-12-01), None
German Search Report, Oct. 10, 2003.
German Office Action directed to corresponding foreign application mailed Aug. 4, 2005.

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