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1. WO1994004261 - UTILIZATION OF A TRANSACYLATION REACTION BETWEEN AN ESTERIFIED POLYSACCHARIDE AND A POLYAMINATED OR POLYHYDROXYLATED SUBSTANCE FOR FABRICATING MICROPARTICLES, MICROPARTICLES THUS OBTAINED, METHODS AND COMPOSITIONS CONTAINING THEM

Publication Number WO/1994/004261
Publication Date 03.03.1994
International Application No. PCT/FR1993/000792
International Filing Date 04.08.1993
Chapter 2 Demand Filed 07.03.1994
IPC
A61K 9/16 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9Medicinal preparations characterised by special physical form
14Particulate form, e.g. powders
16Agglomerates; Granulates; Microbeadlets
A61K 9/50 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9Medicinal preparations characterised by special physical form
48Preparations in capsules, e.g. of gelatin, of chocolate
50Microcapsules
B01J 13/16 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
13Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
02Making microcapsules or microballoons
06by phase separation
14Polymerisation, crosslinking
16Interfacial polymerisation
CPC
A61K 9/1694
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9Medicinal preparations characterised by special physical form
14Particulate form, e.g. powders, ; Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
16Agglomerates; Granulates; Microbeadlets ; ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
1682Processes
1694resulting in granules or microspheres of the matrix type containing more than 5% of excipient
A61K 9/5089
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
9Medicinal preparations characterised by special physical form
48Preparations in capsules, e.g. of gelatin, of chocolate
50Microcapsules ; having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
5089Processes
B01J 13/16
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
13Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
02Making microcapsules or microballoons
06by phase separation
14Polymerisation; cross-linking
16Interfacial polymerisation
Y10T 428/2985
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
428Stock material or miscellaneous articles
29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
2982Particulate matter [e.g., sphere, flake, etc.]
2984Microcapsule with fluid core [includes liposome]
2985Solid-walled microcapsule from synthetic polymer
Applicants
  • COLETICA [FR]/[FR] (AllExceptUS)
  • LEVY, Marie-Christine [FR]/[FR] (UsOnly)
Inventors
  • LEVY, Marie-Christine
Agents
  • PORTAL, Gérard
Priority Data
92/1017320.08.1992FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) UTILIZATION OF A TRANSACYLATION REACTION BETWEEN AN ESTERIFIED POLYSACCHARIDE AND A POLYAMINATED OR POLYHYDROXYLATED SUBSTANCE FOR FABRICATING MICROPARTICLES, MICROPARTICLES THUS OBTAINED, METHODS AND COMPOSITIONS CONTAINING THEM
(FR) UTILISATION D'UNE REACTION DE TRANSACYLATION ENTRE UN POLYSACCHARIDE ESTERIFIE ET UNE SUBSTANCE POLYAMINEE OU POLYHYDROXYLEE POUR LA FABRICATION DE MICROPARTICULES, MICROPARTICULES AINSI REALISEES, PROCEDES ET COMPOSITIONS EN CONTENANT
Abstract
(EN)
The invention relates to microparticles, particularly microcapsules and their fabrication method. Said microparticles, and particularly said microcapsules, are characterized in that they have a wall made of the product obtained from the reaction between a polysaccharide carrying esterified carboxylic groups and a polyaminated or polyhydroxylated substance, particularly through a transacylation reaction. Said microparticles or said microcapsules are useful for the fabrication of cosmetic, pharmaceutical or food product compositions.
(FR)
L'invention concerne des microparticules, en particulier des microcapsules et leur procédé de fabrication. Ces microparticules, en particulier ces microcapsules, sont caractérisées en ce qu'elles présentent une paroi constituée du produit de réaction entre un polysaccharide porteur de groupements carboxyliques estérifiés et une substance polyaminée ou une substance polyhydroxylée, notamment par l'intermédiaire d'une réaction de transacylation. Ces microparticules ou ces microcapsules sont utiles pour la fabrication de compositions cosmétique, pharmaceutique ou alimentaire.
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