SMALL PARTICLE FORMATION

The present invention is concerned with the formation of small particles of organic compounds whose solubility in water is independent of temperature and greater at a first pH than at a second pH, upon precipitation by pH change with or without a change in temperature, but in the presence of a surfa...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FRANK, SYLVAN G, BRODIN, ARNE F, CHEN, CHIH-MING J, SHRIVASTAVA, RATNESH
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention is concerned with the formation of small particles of organic compounds whose solubility in water is independent of temperature and greater at a first pH than at a second pH, upon precipitation by pH change with or without a change in temperature, but in the presence of a surfactant mixture.