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PROCESS FOR THE PREPARATION OF AN INTERMEDIATE POWDER FORMULATION AND A FINAL SOLID DOSAGE FORM UNDER USAGE OF A SPRAY CONGEALING STEP
专利权人:
GRUNENTHAL GMBH
发明人:
VOORSPOELS, JODY, FIRMIN, MARCELINE,MERTENS, ROEL, JOS, M,FAURE, ANNE,KIEKENS, FILIP, RENE, IRENA
申请号:
NZ58886309
公开号:
NZ588863A
申请日:
2009.05.08
申请国别(地区):
NZ
年份:
2012
代理人:
摘要:
Disclosed is a process for preparing a powder comprising the steps of(i) providing at least one oily or waxy component (first component)- being in liquid form at ambient temperature or - being a solid or semi-solid at ambient temperature and having an onset of melting in the temperature range from 15 Deg. C to 40 Deg. C, (which may include, for example, vegetable, animal, mineral and synthetic oils or waxes, e.g. silicon oils or waxes, poloxamers liquid at room temperature, polyethyleneglycols with molecular weight < 3000, and mixtures thereof),(ii) providing at least one second component having a melting point or melting range above ambient temperature and comprising or consisting of polyalkykene glycol, (iii) forming a homogenous liquid mixture comprising said at least one first component and said at least one second component by stirring and heating the mixture to or keeping the mixture at a temperature in the range from above the melting point or melting range of said second component to 120 Deg. C, (iv) transferring the liquid mixture to at least one spray congealing unit by at least one transfer unit, which is adapted to keep the mixture in its liquid form during its transfer, (v) spray congealing said mixture, and (vi) isolating the powder obtained upon spray congealing. Particularly described is the use of the disclosed method to prepare powdered forms of Tocopherols Additionally the use of the powder obtained to prepare a dosage form is disclosed
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