The invention relates to the field of capsules having a high load of active ingredients or substances, to the use thereof in cosmetic preparations, pharmaceuticals, household products, cleaning agents and technical compositions, e.g. adhesive and coating compositions, and to the manufacturing of the capsules.

Described herein is a new process for the preparation of powdered microcapsules encapsulating active volatile active ingredients, in particular a perfume or a flavour, the process being performed at room temperature. Powdered microcapsules obtainable by the process are also described. Perfuming and flavouring compositions as well as consumer products including the capsules are also described.

Described herein is a new process for the preparation of powdered microcapsules encapsulating active volatile active ingredients, in particular a perfume or a flavour, the process being performed at room temperature. Powdered microcapsules obtainable by the process are also described. Perfuming and flavouring compositions as well as consumer products including the capsules are also described.

Controlled release biodegrading microcapsules comprising polypeptide chains.

Controlled release biodegrading microcapsules comprising polypeptide chains.

The present invention relates to a method for the preparation of microparticles and solid microcapsules comprising the following steps: a) the addition, with stirring, of composition C′2 in a composition C3, the compositions C′2 and C3 not being miscible with each other, the composition C′2 being either a monophasic composition C2 or an emulsion (E1) comprising drops of a composition C1, comprising at least one active ingredient, dispersed in a polymeric composition C2, the compositions C1 and C2 not being miscible in each other, the viscosity of composition C3 being greater than 10,000 mPa.Math.s at 25° C. at a shear rate of s.sup.−1 and being less than 10,000 mPa.Math.s at 25° C. at a shear rate of between 100 s.sup.−1 and 100,000 s.sup.−1, wherein an emulsion (E2) is obtained b) applying shear to the emulsion (E2), the applied shear rate being less than 1000 s.sup.−1, wherein an emulsion (E3) is obtained; and c) the polymerization of the composition C′2.

The present invention relates to a method for the preparation of microparticles and solid microcapsules comprising the following steps: a) the addition, with stirring, of composition C′2 in a composition C3, the compositions C′2 and C3 not being miscible with each other, the composition C′2 being either a monophasic composition C2 or an emulsion (E1) comprising drops of a composition C1, comprising at least one active ingredient, dispersed in a polymeric composition C2, the compositions C1 and C2 not being miscible in each other, the viscosity of composition C3 being greater than 10,000 mPa.Math.s at 25° C. at a shear rate of s.sup.−1 and being less than 10,000 mPa.Math.s at 25° C. at a shear rate of between 100 s.sup.−1 and 100,000 s.sup.−1, wherein an emulsion (E2) is obtained b) applying shear to the emulsion (E2), the applied shear rate being less than 1000 s.sup.−1, wherein an emulsion (E3) is obtained; and c) the polymerization of the composition C′2.

Particles of encapsulated first epoxy resin (microcapsules) comprise: a) a core of first epoxy resin, within b) a shell comprising an organic polymer, and c) a layer of oil-in-water Pickering emulsifier particles borne on an outer surface of the shell. These particles may be used in liquid adhesive compositions, solid adhesive compositions such as tapes, or in other applications. In various embodiments, the oil-in-water Pickering emulsifier particles comprise materials selected from the group consisting of silica, fumed silica, calcium carbonate, barium sulfate, clay, carbon black, iron oxide, carbon nanotubes, latex, block copolymer micelles, polystyrene, poly(methyl methacrylate), any of the preceding materials which additionally are surface-modified, and combinations thereof. Particles of encapsulated epoxy resin may have an average diameter of 0.1-1000 micrometers, or in some embodiments 30-300 micrometers. The oil-in-water Pickering emulsifier particles may have an average diameter of 5-1000 nanometers, 5-100 nanometers, or in some embodiments 5-50 nanometers.

A shelf stable, edible sphere containing alcohol and methods for preparing the same. The edible sphere comprises a liquid and/or gel inner core comprising ethyl alcohol and an outer membrane comprising alginate, wherein the outer membrane coats and encapsulates the liquid and/or gel inner core and wherein the edible sphere is shelf stable for at least one month. The process for preparing the shelf stable, edible sphere comprises combining an alcoholic beverage, a calcium salt, and optionally one or more further components to form a cocktail solution, deaerating and either freezing the cocktail solution to form a frozen cocktail solution or adding a thickening compound to the de-aerated cocktail solution to form a viscous cocktail solution, immersing the frozen cocktail solution or viscous cocktail solution in a sodium alginate bath at ambient temperature for a period of time to form an edible sphere containing alcohol, and removing the edible sphere containing alcohol from the alginate bath and rinsing it with water to form a shelf stable edible sphere.

Delivery particles encapsulating oily core materials have a shell material of hybrid poly acrylate and poly(beta-amino esters) (PAC/PBAE). The delivery particles may have a single shell of hybrid PAC/PBAE, dual shells including hybrid PAC/PBAE in an inner shell and PBAE in an outer shell crosslinked to the inner shell, or multiple shells including PAC in an inner shell, hybrid PAC/PBAE in a transitioning shell, and PBAE in an outer shell. Formation of the delivery particles includes polymerization between multifunctional amine and multifunctional acrylate to produce a water soluble PBAE; polymerization between the preformed PBAE prepolymer having free methacrylate moieties reactive with a multifunctional (meth)acrylate in the oil phase, or at an interface of the water and oil phases to produce PAC wall, polymerization between polyacrylate and the amine moiety of PBAE prepolymer to produce hybrid PAC/PBAE delivery particle wall; and polymerization between multifunctional acrylate and primary or secondary amine moiety of the PBAE prepolymer to form a PBAE outer shell.