METHOD FOR PREPARING COPRECIPITATE OF SUBSTANCE SPARINGLY SOLUBLE IN WATER AND POLYMER SOLUBLE IN WATER

A method for preparing a coprecipitate of a substance sparingly soluble in water and a polymer soluble in water, which comprises a step of providing a mixture solution of the substance sparingly soluble in water dissolved in an aqueous organic solvent, a step of pouring the mixture solution into the...

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Bibliographic Details
Main Authors CHIKASE, SHIGERU, UDAGAWA, CHIKAKO, MISAKA, MASATO, ISHIKURA, TOYOAKI
Format Patent
LanguageEnglish
French
Japanese
Published 29.12.2004
Edition7
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
HETEROCYCLIC COMPOUNDS
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
METALLURGY
ORGANIC CHEMISTRY
ORGANIC MACROMOLECULAR COMPOUNDS
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:A method for preparing a coprecipitate of a substance sparingly soluble in water and a polymer soluble in water, which comprises a step of providing a mixture solution of the substance sparingly soluble in water dissolved in an aqueous organic solvent, a step of pouring the mixture solution into the flux of a liquid medium having water as a main component, and a step of allowing the liquid medium having water as a main component containing the mixture solution having been poured therein to flow by a distance sufficient for forming a coprecipitate, wherein the above mixture solution and/or the above liquid medium comprises the water-soluble polymer. La présente invention concerne un procédé de préparation de coprécipités de substances modérément solubles dans l'eau et de polymères solubles dans l'eau, qui consiste à prendre une solution de mélange de substances modérément solubles dans l'eau dissoute dans un solvant organique aqueux, à verser cette solution de mélange dans le flux d'un milieu liquide possédant de l'eau comme composant principal est à permettre à ce milieu liquide possédant de l'eau comme composant principal et contenant cette solution de mélange ayant été versée dans ce milieu de s'écouler à une distance suffisante pour former un coprécipité, cette solution de mélange et ce milieu liquide comprenant le polymère soluble dans l'eau.
Bibliography:Application Number: WO2004JP08728