A method of covalently bonding a modifier to a polymeric microcapsule wall, which wall comprises entities capable of reaction with acrylic moieties, comprising the provision on the wall of a linking compound to which the modifier is subsequently attached, the linking compound having the Formula I

##STR00001##

in which

n=1 to 30; R.sub.1, R.sub.2 and R.sub.3 are independently selected from the following moieties:

R.sub.1 and R.sub.3 are H and Me; and

X is selected from O and NH; and

R.sub.2 is selected from CH.sub.2, CH.sub.2CH(OH)CH.sub.2, and CH.sub.2,CH.sub.2.

Microcapsuies thus modified exhibit enhanced substantivity to substrates such as textiles when used in laundry preparations.

Described herein is a delivery system including a carrier and a perfume formulation, where the perfume formulation includes 0 to 60 wt. % of a hydrophobic solvent, 40 to 100 wt. % of a perfume oil, where the perfume oil has at least two of the following characteristics: at least 35% of perfuming ingredients having a log P above 3, at least 20% of Bulky materials of Groups 1 to 6 and at least 15% of high impact perfume materials having a Log T<−4, where the perfume formulation is entrapped in the carrier. Also described herein are perfuming compositions and perfumed consumer products including the delivery system.

Described herein is a delivery system including a carrier and a perfume formulation, where the perfume formulation includes 0 to 60 wt. % of a hydrophobic solvent, 40 to 100 wt. % of a perfume oil, where the perfume oil has at least two of the following characteristics: at least 35% of perfuming ingredients having a log P above 3, at least 20% of Bulky materials of Groups 1 to 6 and at least 15% of high impact perfume materials having a Log T<−4, where the perfume formulation is entrapped in the carrier. Also described herein are perfuming compositions and perfumed consumer products including the delivery system.

The present invention is directed to a method for producing advantageous microcapsules. Moreover, the present invention provides microcapsules obtained/obtainable by the method according to the invention.

Described herein are apparatuses and methods for conditioning particles. In some embodiments, the apparatuses and methods are configured for first-in-first-out transit of particles through a chamber containing a conditioning fluid.

Disclosed is a composition including controlled release particles, wherein each of the controlled release particles includes: (a) a core including at least one hydrophobic active ingredient; and (b) a wall at least partially surrounding the core and including: (i) an organofunctional silane; (ii) an epoxy; (iii) an amine; (iv) an isocyanate; (v) an epoxide curing agent; wherein the controlled release particles are effective to retain the at least one hydrophobic active ingredient upon exposure to water and effective to release the at least one hydrophobic active ingredient in response to friction. A method for preparing the composition is also disclosed.

Provided are hydrocolloid core-shell capsules including a liquid core including a non-crosslinked alginate solution and a solid or semi-solid shell including a hydrocolloid other than alginate crosslinked with metal ions, which do not crosslink alginate. Further provided is a method for the preparation of the liquid-core capsules including non-crosslinked alginate. The subject matter further provides the use of the capsules, inter alia, in the water treatment technology.

Provided is a monodisperse agglomerate of a substance-containing vesicle filled with a substance at a concentration higher than conventionally possible. A mixed solution, in which a target substance is included in an aqueous medium, is mixed with a monodisperse agglomerate of a crosslinked vesicle comprising a prescribed polymer which includes a first polymer, i.e. a block copolymer having uncharged hydrophilic segments and first charged segments, and a second polymer having second charged segments carrying a charge opposite to that of the first charged segments, and in which the first polymer and/or the second polymer are/is crosslinked. As a result, the crosslinked vesicle is made to contain the target substance.

Provided is a monodisperse agglomerate of a substance-containing vesicle filled with a substance at a concentration higher than conventionally possible. A mixed solution, in which a target substance is included in an aqueous medium, is mixed with a monodisperse agglomerate of a crosslinked vesicle comprising a prescribed polymer which includes a first polymer, i.e. a block copolymer having uncharged hydrophilic segments and first charged segments, and a second polymer having second charged segments carrying a charge opposite to that of the first charged segments, and in which the first polymer and/or the second polymer are/is crosslinked. As a result, the crosslinked vesicle is made to contain the target substance.

Fabrication of functional polymer-based particles by crosslinking UV-curable polymer drops in mid-air and collecting crosslinked particles in a solid container, a liquid suspension, or an air flow. The particles can contain different phases in the form or layered structures that contain one to multiple cores, or structures that are blended with dissolved or emulsified smaller domains. A curing system produces ultraviolet rays that are directed onto the particles in the jet stream from one side. A reflector positioned on other side of the jet stream reflects the ultraviolet rays back onto the particles in the jet stream.