CLAY NANOCOMPOSITE FORMING MICROCAPSULE USEFUL FOR GUEST ENCAPSULATION AND PROCESS THEREOF

A nanocomposite exhibiting solvent-assisted self-assemblage properties and forming microcapsule useful for guest-encapsulation and process for making the same which comprises the reaction product of a smectite-type clay and an oligosilsesquioxane from hydrolytic polycondensation of a trialkoxy amino...

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Bibliographische Detailangaben
Hauptverfasser:	PAVITHRAN, CHORAPPAN, NAIR, BINDU, PRASANNAKUMARAN
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	APPARATUS SPECIALLY ADAPTED THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CINEMATOGRAPHY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ELECTROGRAPHY HOLOGRAPHY HUMAN NECESSITIES HYGIENE MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MATERIALS THEREFOR MEDICAL OR VETERINARY SCIENCE METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS ORIGINALS THEREFOR PERFORMING OPERATIONS PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	A nanocomposite exhibiting solvent-assisted self-assemblage properties and forming microcapsule useful for guest-encapsulation and process for making the same which comprises the reaction product of a smectite-type clay and an oligosilsesquioxane from hydrolytic polycondensation of a trialkoxy aminoalkyl silane and a trialkoxy alkenyl silane dispensed in a vinyl polymer by in situ intercalative polymerisation of a vinyl monomer. A process for making microcapsule which comprises casting a solution of the nanocomposite in a suitable volatile solvent followed by evaporation of the solvent. A method for producing guest-encapsulated microcapsule which comprises casting a solution of the nanocomposite and the guest molecule in a suitable volatile solvent followed by evaporation of the solvent. L'invention porte sur un nanocomposite présentant des propriétés d'autoassemblage assisté par solvant, et formant une microcapsule utile pour une encapsulation hôte, et sur un procédé pour fabriquer ledit nanocomposite, lequel nanocomposite comprend le produit de réaction d'une argile de type smectite et d'un oligosilsesquioxane à partir d'une polycondensation hydrolytique d'un trialcoxy aminoalkyl silane et d'un trialcoxy alcényl silane distribuée dans un polymère vinylique par une polymérisation d'insertion in situ d'un monomère vinylique. Un procédé pour fabriquer une microcapsule comprend le coulage d'une solution du nanocomposite dans un solvant volatil approprié, suivi par l'évaporation du solvant. Un procédé de production d'une microcapsule encapsulée hôte comprend le coulage d'une solution du nanocomposite et de la molécule hôte dans un solvant volatil approprié, suivi par l'évaporation du solvant.