Method for the preparation of directly compressible granular man

Plastic and nonmetallic article shaping or treating: processes – Forming articles by uniting randomly associated particles – Autogenously or by activation of dry coated particles

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264140, 26421111, 568852, 568868, B29C 4700, C07C 3118

Patent

active

051606801

ABSTRACT:
The invention relates to a method of preparing directly compressible granular mannitol, wherein a raw material essentially constituted of powder mannitol is subjected to an extrusion treatment inside an installation comprising a heating zone and an extrusion die, the supply flow rate of the installation with raw material as well as the parameters of the extrusion treatment, namely the temperature existing inside the heating zone, the diameter of the extrusion die and the driving speed of the raw material inside the heating zone being selected so that at the exit of the die and before the exit of the mannitol from the latter, the mannitol is partly fused.

REFERENCES:
patent: 2951263 (1960-09-01), Cooper
patent: 3341415 (1967-09-01), Scott
patent: 3966857 (1976-06-01), Charlton et al.
patent: 4133857 (1979-01-01), Takano et al.
patent: 4302413 (1981-11-01), Howe et al.
patent: 4831129 (1989-05-01), Serpelloni
The Condensed Chemical Dictionary, 10th Edition, p. 644.

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