Controlled release of active substances

Controlled release of active substances

A water-insoluble composition, solid in appearance at a temperature of less than or equal to 20° C., comprising, for 100% of the mass of same: -X1% by mass of at least one lipophilic surfactant having a value HLB, H1, greater than or equal to 1 and less than 10; -X2% by mass of at least one hydrophi...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Trouve, Gérard, Duccini, Yves
Format: Patent
Sprache:eng
Schlagworte:
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
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Beschreibung
Zusammenfassung:A water-insoluble composition, solid in appearance at a temperature of less than or equal to 20° C., comprising, for 100% of the mass of same: -X1% by mass of at least one lipophilic surfactant having a value HLB, H1, greater than or equal to 1 and less than 10; -X2% by mass of at least one hydrophilic surfactant having a value HLB, H2, greater than or equal to 10 and less than or equal to 20; characterised by the fact that the HLB of same=X1.H1+X2.H2, X1 and X2 varying from 2 to 60, and characterised in that it is free of acrylic polymer and/or of acetate succinate.