A method of mercury-free photochemical micro-/nano-encapsulation of an active material is a process for obtaining Micro-/nano-capsules by means of curing by UV LED radiation at ambient or even cold temperatures. A stirrer photo-reactor made from glass or transparent plastics can be used but mixed flow reactor could be also employed. Appropriate mixing is sufficient to expose all droplets, which contain an active material surrounded by curable-shell materials in the emulsion to the LED radiation. Using the optimum light intensities and reactions' times is critical for encapsulating the active material with a high efficiency and producing a high quality micro-/nano-capsules, Solar monochromator device can also be used as long as it generate the same radiation with a narrow/single wavelengths as the LED device. Light emitted diode (LED) is a mercury-free UV radiation source with a long operating life time and an instant ON-Off, it has a high efficiency, a very low cooling requirements and cost-efficient in photochemical encapsulation. It reduces the time of microencapsulation from 6 hours to a less than 5 minutes. It has a significant decrease in manufacturing cost, waste-water, unconverted monomers, and leftover active phase change material (PCM) compared to other methods. Conversion of more than 90% of monomers can be achieved, and encapsulation efficiency can reach 100% at optimum conditions. This is in addition to the ability of this invented technology for encapsulate volatile and heat sensitive active materials at ambient as well as low temperatures. Normal glass or transparent plastics can be used as a reactor material. Only the matched useful wavelength radiation is emitted by LED without having other wavelengths which might have a bad impact on the encapsulation process.

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.

Disclosed is a microcapsule containing: (i) a microcapsule core having an active material, and (ii) a microcapsule wall formed of a first polymer and second polymer. The first polymer is a sol-gel polymer. The second polymer is gum arabic, purity gum ultra, gelatin, chitosan, xanthan gum, plant gum, carboxymethyl cellulose, sodium carboxymethyl guar gum, or a combination thereof. The weight ratio between the first and second polymer is 1:10 to 10:1. Also disclosed are processes for preparing the microcapsule and uses of the microcapsules in consumer products.

Methods of preparing a capsule delivery system having two or more different capsules. Also disclosed are capsule delivery systems and consumer products containing such a capsule delivery system.

Methods of preparing a capsule delivery system having two or more different capsules. Also disclosed are capsule delivery systems and consumer products containing such a capsule delivery system.

This invention relates to core-shell nanoparticles having acid sites, a method of manufacturing the same, and a method of directly producing hydrogen peroxide using the same.

The present invention provides a thermally expandable microcapsule that is excellent in heat resistance and durability and exhibits an excellent foaming property in a wide temperature range from low temperatures to high temperatures. The present invention is a thermally expandable microcapsule, which comprises a shell containing a copolymer, and a volatile liquid as a core agent included in the shell, the copolymer being obtainable by polymerization of a monomer mixture containing a monomer A and a monomer B, the monomer A being at least one selected from the group consisting of a nitrile group-containing acrylic monomer and an amide group-containing acrylic monomer, the monomer B being at least one selected from the group consisting of a carboxyl group-containing acrylic monomer and an ester group-containing acrylic monomer, a total amount of the monomer A and the monomer B accounting for 70% by weight or more of the monomer mixture, and a weight ratio of the monomer A and the monomer B being 5:5 to 9:1.

The present invention provides a thermally expandable microcapsule that is excellent in heat resistance and durability and exhibits an excellent foaming property in a wide temperature range from low temperatures to high temperatures. The present invention is a thermally expandable microcapsule, which comprises a shell containing a copolymer, and a volatile liquid as a core agent included in the shell, the copolymer being obtainable by polymerization of a monomer mixture containing a monomer A and a monomer B, the monomer A being at least one selected from the group consisting of a nitrile group-containing acrylic monomer and an amide group-containing acrylic monomer, the monomer B being at least one selected from the group consisting of a carboxyl group-containing acrylic monomer and an ester group-containing acrylic monomer, a total amount of the monomer A and the monomer B accounting for 70% by weight or more of the monomer mixture, and a weight ratio of the monomer A and the monomer B being 5:5 to 9:1.

A microcapsule, method, and article of manufacture are disclosed. The microcapsule includes an outer shell, a molecular sensitizer, a molecular annihilator, and an inner shell separating the molecular sensitizer from the molecular annihilator. The method includes forming microcapsules, each microcapsule having an outer shell, a molecular sensitizer, a molecular annihilator, and an inner shell separating the molecular sensitizer from the molecular annihilator. The article of manufacture includes at least one of the microcapsules.