| abstract |
(AB) n silicone polyethers that are polyorganosiloxane-polyoxyethylene block copolymers having the average formula, —[R 1 (R 2 SiO) x (R 2 SiR 1 O)(C 2 H 4 O) y ] z —, where x and y are greater than 4, and x/(x+y) ranges from 0.4 to 0.9, z is greater than 2, R is independently a monovalent organic group, and R 1 is a divalent organic group containing 2 to 12 carbons are disclosed. Such (AB) n silicone polyethers are useful to prepare vesicle compositions and stable aqueous dispersions which can be used to entrap, and subsequently deliver after application, a personal, household care, or health care ingredient. |