Described herein is a new process for the preparation of polysuccinimide derivatives-based core-shell microcapsules. Also described are microcapsules, as well as perfuming compositions and consumer products including these microcapsules, in particular perfumed consumer products in the form of home care or personal care products.

The invention describes aqueous, surfactant-containing and/or transparent cleansing preparations containing novel associative thickeners, the A-MA polymers. Solid particles, bubbles and/or droplets can be present as a stable suspension in the preparations.

A cosmetic composition according to an embodiment of the present disclosure stably contains capsules. In the cosmetic composition according to an embodiment, the capsule where an active ingredient such as a colorant is loaded has excellent physical and chemical stability. Therefore, the cosmetic composition does not have problems of formulation instability which may be caused by contact and reaction between a component in the capsule and a component outside the capsule, even when kept for a long period of time. In addition, the cosmetic composition can obtain a dramatic makeup effect when the colorant loaded in the capsule is discharged only by frictional force generated during use of the cosmetic.

Resin particles include mother particles containing a biodegradable resin, and a coating layer containing at least one selected from the group consisting of a quaternary ammonium salt-containing polymer, polyacrylamide, polyvinylpyrrolidone, and polylysine on a surface of the mother particles.

Described herein is a granulated dry composition comprising at least one non-elastomeric polyorganosiloxane, agglomerated onto solid carrier particles. The granulated dry compositions can be used as a dry cleanser for keratinous substrates with high speed of absorption of body fluids together with improved sensory feel and release of care agents.

Disclosed herein are core-shell particles and process for preparing the same. The core-shell particles include a functional core, a multilayer or porous shell surrounding the functional core and polymeric tails extending from the shell. The functional core includes an antimicrobial agent or an antitumor agent. Also disclosed herein are pharmaceutical or health care compositions containing the core-shell particles.

Particles obtainable by polymerization of a siloxane which has at least one (meth)acrylate group of the formula (I)
—O—C(O)—CR═CH.sub.2  (I)
where R=—H or —CH.sub.3, which are characterized in that the siloxane has an average molar ratio of groups of the formula (I) to Si atoms of less than 0.1 are provided.

Particles having excellent touch properties are achieved with a water-soluble material having excellent biodegradability. Particles according to the present invention contain a starch having an amylopectin content of 90% by weight or more. The average particle diameter d.sub.1 of the panicles is 0.5 to 20 μm, and the maximum particle diameter d.sub.2 is less than 30 μm while being within 3.0 times the average particle diameter.

There is provided a core-shell particle comprising a polymer conjugate encapsulating an active agent, wherein the polymer conjugate comprises a biocompatible polymer and a polyacidic polymer. There is also provided a process for forming the core-shell particle, a delivery vehicle comprising the core-shell particle and a method for delivering an active agent to a desired site.

Disclosed are porous resin particles which contain a polymer of a monomer mixture containing, as monomers, at least a monofunctional (meth)acrylic acid ester and a crosslinking monomer. The monofunctional (meth)acrylic acid ester accounts for 1 wt % to 50 wt % of the monomer mixture, and the crosslinking monomer accounts for 50 wt % to 99 wt % of the monomer mixture. The porous resin particles have a specific surface area of 190 m.sup.2/g to 300 m.sup.2/g and a bulk specific gravity of 0.25 g/mL to 0.45 g/mL.