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AssigneeInstituut Voor Agrotechnologisch Onderzoek (ATO-DLO)
InventorsGeertruida Everdina Theodora Van Vilsteren, Hendrik Jan Neerhof, Eugenius Paulus Henricus Maria Schijvens, Didier André Pierre Delnoye, Tjeerd Jongsma
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An encapsulated material is described of which at least a part of the material is kept encapsulated during heat treatment in an aqueous environment and is released during cooling after a heat treatment. The material is encapsulated in a layer of a hydrophobic film-forming material and a layer of a material having a low critical solution temperature (LCST) below the treatment temperature. The layer containing the hydrophobic material may be situated inside the layer having the LCST and have a melting point below the LCST, but it may also be situated outside the layer having the LCST and have a melting point above the LCST of said layer. Said layers may also be applied together.
An encapsulated maaterial, the material being encapsulated in at least two layers ensuring that at least a part of the material is kept encapsulated during heat treatment in an aqueous environment and is released after cooling after said heat treatment, said at least two layers comprising a first layer of a hydrophobic film-forming material having a melting point below the temperature of said heat treatment, and a second layer of a material having a low critical solution temperature (LCST below the temperature of said heat treatment, said first hydrophobic layer being situated essentially inside said second layer having the LCST.
A combination of two adjacent semi-solid materials, wherein at least one material contains an ingredient capable of migrating into the other, the semi-solid materials being separated, in such a manner that migration during heat treatment is prevented, by at least a first layer of a hydrophobic material and a second layer of a material having a low critical solution temperature (LCST) below the temperature of said heat treatment, said second layer having the LCST being situated above said first hydrophobic layer.
A process for adding an active material to a target environment before or during a heat treatment and releasing said material to said target environment after, said heat treatment, by adding said active material in coated form, the material being coated with a layer of a material having a low critcal solution temperature (LCST) below the temperature of said heat treatment and with at least a layer of a hydrophobic film-forming material situated between said active material and said LCST material.
Dependencies are inferred from the claim text.