A method of making a population of capsules, the capsules can include a core including a benefit agent and a shell surrounding the core, wherein the shell can include a first shell component.

The application describes an aqueous dispersion of microcapsules, wherein the shell of the microcapsules comprises at least one polyurea and the core comprises one or more lipophilic components with the proviso that the core does not contain a fragrance, and having a percentage of the shell weight with reference to the total weight of the capsules of 5 to 40% and wherein the microcapsules have a volume average diameter of 15 to 90 μm and the dispersion comprises hydroxyalkylcellulose and the use of such a dispersion.

Proposed are a microcapsule having a core-shell structure that has high-temperature durability and solvent resistance and is environment-friendly. The microcapsule includes a core portion containing a hydrophobic active component and a shell portion surrounding the core portion and containing a silane crosslinkable polyurethane-based resin derived from a crosslinkable alkoxy silane group-terminated prepolymer.

The present disclosure relates to methods for making polyols, esters, and surfactants. Generally, a carboxyl-containing molecule is reacted with an epoxide-containing molecule to obtain a hydroxylated ester. If multiple epoxide groups are present in the epoxide-containing molecule, the resulting molecule can also be considered a polyol. The hydroxyl groups can be further ethoxylated to obtain a surfactant/stabilizer.

An example display assembly includes: an outer substrate; an inner substrate; a first electrode and a second electrode disposed between the inner substrate and the outer substrate in a spaced apart relationship; and at least one substantially planar microstructure between the first and second electrodes, the microstructure containing an electrophoretic media, and wherein the electrophoretic media comprises a first chemical entity and a second chemical entity, wherein the first and second chemical entities are to be induced to reversibly interact to switch between a separated state and an optically active state in response to a change in an electromagnetic field applied to the electrophoretic media by the first and second electrodes to change an optical property of the electrophoretic media.

The application describes a process for the preparation of microcapsules, wherein the microcapsules have a volume average diameter d of 15 to 90 μηη and a percentage of the shell weight of 3 to 40%, with reference to the total weight of capsules, wherein the shell of the microcapsules comprises at least one polyurea and the core comprises at least one lipophilic component, comprising the step of adding hydroxyalkylcellulose to a dispersion of polyurea microcapsules, microcapsules and their uses.

The microcapsules and process of making describe a novel core shell microcapsule. The microcapsule incorporates a polysaccharide such as chitosan into the microcapsule wall forming the shell. The microcapsule shell is formed by dissolving chitosan into a material of structure ##STR00001##
wherein each R is independently selected from hydrogen, C.sub.1 to C.sub.8 alkyl, or a cyano group; and each y is independently an integer from 1 to 8, and reacting with a multifunctional (meth)acrylate.

A method for producing hollow fine particles containing a fluorine-containing resin and having a large average particle size. The method includes a step A of providing hollow fine particles by dispersing a solution containing a fluorine-containing monomer, an oil-soluble initiator, and a non-polymerizable solvent in water containing a fluorine-containing surfactant and thereby polymerizing the fluorine-containing monomer. Also disclosed are hollow fine particles including a fluorine-containing resin and having an average particle size of 70 nm or greater and 10 μm or smaller. The hollow fine particles each have a porosity of 5% by volume or higher, and the fluorine-containing resin contains a polymerized unit based on a fluorine-containing monomer and a polymerized unit based on a crosslinkable monomer.

A nano-particulate composition comprising nano-particulate capsule comprising at least one or more of hydrophobic core material and a polymeric shell comprising homo-polymer or copolymers of at least one ethylenically unsaturated monomers or mixture thereof and having particle size distribution with an average article size in the range of 50 to 1000 nm is provided together with a controlled release delivery system comprising fragrance release delivery system involving said nano-particulate capsule water based emulsion and a process of manufacture thereof. Said delivery system provided is able to protect and release the fragrance in a controlled manner over a period of time. The controlled release fragrance delivery system of the present invention finds advantageous end use and application in fragranced consumer products formulations including water based coating/paint formulations and industrial formulations for use in industries including textile, cosmetics, soaps and detergents, leather industries.

Compositions that include benefit agent delivery particles, the particles having a core and a shell encapsulating the core, the shell including certain acrylate-based polymers. Processes for making and using such compositions.