An improved delivery particle comprising a benefit agent core material and a shell encapsulating the core material is described, along with a process for forming such a delivery particle and articles of manufacture. The shell is the reaction product of: i) an isocyanate or acid chloride or acrylate with ii) an amine-containing natural material having free amino moieties, and iii) an a, β -unsaturated compound, the a, β -unsaturated compound forming C-N covalent bonds with the amine moieties of the natural material. The delivery particle of the invention has improved release characteristics, with enhanced degradation characteristics in OECD test method 301B.

The present invention relates to a composition comprising: (a) at least one cationic polysaccharide; (b) at least one antioxidant; and (c) water, wherein the (b) antioxidant has at least one negatively chargeable and/or negatively charged moiety selected from the group consisting of a sulfuric group, a sulfate group, a sulfonic group, a sulfonate group, a phosphoric group, a phosphate group, a phosphonic group, a phosphonate group, a phenolic hydroxyl group, a carboxylic group, and a carboxylate group. The composition according to the present invention can include a relatively larger amount of antioxidant.

Compositions and methods are disclosed for repairing split ends in hair and/or micro-damage to hair shafts. The compositions comprise a variety of oils, optionally including meadowfoam seed oil (Limnanthes alba seed oil), abyssinian oil (Crambe abyssinica seed oil), and camellia seed oil (Camellia oleifera seed oil). The compositions for repair of split ends and/or micro-damage to hair shafts may be encapsulated in microcapsules. The disclosed compositions and methods can completely repair split ends 3 mm long and under, within one-minute following application.

Described herein are hybrid microcapsules with a hydrophobic material-based core, such as a perfume, and a polymeric shell including chitosan particles. Processes for preparing such microcapsules are also described, as are perfuming compositions and consumer products including the capsules, in particular, perfumed consumer products in the form of home care or personal care products.

In accordance with a first aspect, the invention relates to microcapsules for use in a high demand area selected from detergents and cleaners, cosmetic products, adhesive systems, paints and dispersions, coating materials comprising a core material and a shell, wherein the shell consists of at least a first and a second layer whose chemical compositions differ, and wherein the shell has a biodegradability measured according to OECD 301 F of at least 40%. The invention further relates to a product comprising microcapsules, wherein the product is selected from the group consisting of an adhesive system; a cosmetic product; a pharmaceutical product; a coating material, in particular a coated paper; a heat storage coating, a self-healing coating or a corrosion coating; and a coating of functional packaging materials.

The present invention relates to a transdermal delivery composite comprising a cyclodextrin-based covalent organic framework and polymer. In addition, the present invention relates to a cosmetic composition comprising the transdermal delivery composite, and a method for preparing the transdermal delivery composite.

Described is an initial liquid composition with at least antimicrobial, antibacterial, and/or anti-viral properties comprising chelated metal oxide particles suspended in a polyol, such that metal oxide particles are homogeneously dispersed in a primarily liquid based polyol carrier so that chelated metal oxide particles form a stable complex suspension that is optionally an alkaline based aqueous silver oxide dispersion. The liquid composition can be subsequently added to any polymer or polymer compound/system where the polymer degrades or melts at a temperature lower than the polyol carrier degradation or boiling temperature. The metal oxide complex may also impart beneficial semi-conductive or conductive as well as permeability and flammability property changes to the polymer (host) system.

A method for reversing or mitigating skin aging comprising topically applying a composition which comprises at least one oxidant, and at least one fluorescent dye capable of activating the oxidant and illuminating said composition for a time sufficient to activate the at least one oxidant.

A medical device or solution for treating dental discomfort by at least partially occluding dental tubules is disclosed. The medical device or solution contains a polysaccharide or other biocompatible polymer with an antimicrobial metal, antimicrobial metal compound, or antimicrobial metal ion bound to a biopolymer. The medical device or solution further comprises at least one soluble antimicrobial. The soluble antimicrobial may be a water soluble metal iodide, water soluble metal fluoride, or a water soluble metal chloride encompassed with the nanogel. The medical device may be a solution of a chitosan with a nanoparticle of silver fluoride on the chitosan and at least one of a sodium fluoride or silver fluoride. The solution may be water based solution. Methods of applying the medical device or solution are also disclosed.

A water-soluble and/or water-swellable hybrid polymer comprising: (i) from 5 wt.-% to 95 wt.-% water-soluble and/or water-swellable polysaccharide polymer selected from the group consisting of xanthan gum, carrageenan, guar gum, chitosan, alginate and combinations thereof; (ii) from 5 wt.-% to 95 wt.-% synthetic polymer comprising up to 100 mol-% repeating units according to Formula (1a): ##STR00001##
wherein components (i) and (ii) are polymerized by radical precipitation polymerization in a polar solvent.