Method of encapsulating a liquid active

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United States of America Patent

PATENT NO 10940336
APP PUB NO 20150223502A1
SERIAL NO

14432077

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Abstract

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A method of encapsulation of an active comprising

    (a) dispersing an active in an aqueous medium having a pH of less than 6;(b) causing the formation on this dispersed active of a polymer shell, the formation comprising the sequential deposition of a series of polymeric layers, each layer being capable of hydrogen bonding with the preceding layer;to form an aqueous slurry of active-containing capsules;characterised in that one of the first two layers is a polycarboxylic acid and that the first two to four layers taken together exhibit an interfacial compression dilation modulus of greater than 10 mN/m.

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Patent Owner(s)

Patent OwnerAddress
GIVAUDAN SACHEMIN DE LA PARFUMERIE 5 1214 VERNIER SWITZERLAND
LE CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE3 RUE MICHEL-ANGE PARIS 75794
L'UNIVERSITE PIERRE ET MARIE CURIE4 PLACE JUSSIEU PARIS 75252

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bone, Stephane Estouteville Ecalles, FR 5 10
Geffroy, Cédric Buxerolles, FR 5 12
Le, Tirilly Sandrine Paris, FR 4 2
Monteux, Cècile Paris, FR 3 2
Pantoustier, Nadége Paris, FR 3 2
Perrin, Patrick Paris, FR 15 105
Vautrin, Claire Pinsot, FR 4 4

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