GIVAUDAN SA;L'UNIVERSITE PIERRE ET MARIE CURIE;LE CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
发明人:
Stephane Bone,Cédric Geffroy,Sandrine Le Tirilly,Patrick Perrin,Claire Vautrin,Cècile Monteux,Nadége Pantoustier
申请号：
US14432077
公开号：
US20150223502A1
申请日:
2013.10.25
申请国别(地区):
US
年份:
2015
代理人:
摘要：
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.The method allows the precise tailoring of polymeric shells, allowing capsules walls to be much thinner without a loss of strength. The technique is especially useful for the encapsulation of fragrances and flavours.
