Microcapsules containing hydrophobic liquid core

Details Microcapsules containing hydrophobic liquid core Microcapsules containing hydrophobic liquid core

1989-02-27

1990-08-07

Clingman, A. Lionel

Compositions

Preservative agents

Anti-corrosion

252 86, 25217413, 25217411, 4284022, 8137, B01J 1302, C11D 350

Patent

active

049466240

ABSTRACT:
Microcapsules which are prepared using coacervation processes and/or which have a complex structure in which there is a large central core of encapsulated material, preferably perfume, and the walls contain small wall inclusion particles of either the core material or some other material that can be activated to disrupt the wall are disclosed. The microcapsules that are prepared by coacervation and contain perfume are especially desirable for inclusion in fabric softener compositions that have a pH of about 7 or less and which contain cationic fabric softener. The encapsulated perfume preferably does not contain large amounts of relatively water-soluble ingredients. Such ingredients are added separately to the fabric softener compositions. Ingredients that have high and low volatilities as compared to, e.g., the desired perfume, can either be added to, or removed from, the perfume to achieve the desired volatility.

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