B01J13/02

Spherical microparticles with polyester walls

The present invention relates to compositions of spherical microparticles composed of a wall material and at least one cavity that comprises a gas and/or a liquid, which have pores on the surface thereof, wherein the spherical microparticles have a mean particle diameter of 10-600 μm and wherein at least 80% of those microparticles, the particle diameter of which does not deviate from the mean particle diameter of the microparticles of the composition by more than 20%, each have on average at least 10 pores, the diameter of which is in the range from 1/5000 to ⅕ of the mean particle diameter, and, furthermore, the diameter of each of these pores is at least 20 nm, wherein the wall material consists of a composition comprising at least one aliphatic-aromatic polyester, and the wall material has a solubility at 25° C. of at least 50 g/l in dichloromethane, a method for the preparation thereof and also the use thereof.

Spherical microparticles with polyester walls

The present invention relates to compositions of spherical microparticles composed of a wall material and at least one cavity that comprises a gas and/or a liquid, which have pores on the surface thereof, wherein the spherical microparticles have a mean particle diameter of 10-600 μm and wherein at least 80% of those microparticles, the particle diameter of which does not deviate from the mean particle diameter of the microparticles of the composition by more than 20%, each have on average at least 10 pores, the diameter of which is in the range from 1/5000 to ⅕ of the mean particle diameter, and, furthermore, the diameter of each of these pores is at least 20 nm, wherein the wall material consists of a composition comprising at least one aliphatic-aromatic polyester, and the wall material has a solubility at 25° C. of at least 50 g/l in dichloromethane, a method for the preparation thereof and also the use thereof.

Light upconversion microcapsule shells

A composition, method, and article of manufacture are disclosed. The microcapsule includes a polymer shell encapsulating a core component. The polymer shell includes light upconversion molecules. The article of manufacture includes the microcapsule. The method includes obtaining light upconversion molecules having sidechains with reactive functional groups, and forming a microcapsule. The microcapsule includes a polymer shell encapsulating a core component. The polymer shell includes light upconversion molecules. The article of manufacture includes the microcapsule.

Method for preparing nano-quantum dot, nano-quantum dot material, application and quantum dot article
11608469 · 2023-03-21 ·

The application discloses a method for preparing a nano-quantum dot, a nano-quantum dot material, the application thereof and a quantum dot article, and relates to the technical field of quantum dot material preparation. The method for preparing the nano-quantum dot includes the following steps: rapidly solidifying a high-temperature melt in which a carrier corresponding to a target product ion/atomic group/molecular group is dissolved to obtain a carrier in which the target product nano-quantum dot is embedded. The nano-quantum dot material is prepared by using the method. The nano-quantum dot material is applied to the fields of luminescent devices, optical biological marks, disease detection, semiconductors or photoelectricity. Moreover, a quantum dot article containing the nano-quantum dot material is provided.

Encapsulation system for prolonged release of active agents
11607392 · 2023-03-21 · ·

The present technology generally relates to an encapsulation system for delivery of an active agent, the encapsulation system comprising a matrix of microcapsules, wherein a first portion of microcapsules in the matrix of microcapsules has an average diameter of from about 0.1 microns to about 10 microns; a second portion of the microcapsules has an average diameter of from about 10 microns to about 100 microns; and a third portion of the microcapsules has an average diameter of from about 100 microns to about 500 microns; and wherein the active agent is encapsulated in the microcapsules.

REACTION APPARATUS AND PROCESSING METHOD THEREOF, AND PREPARATION DEVICE OF MICROSPHERES FOR EMBOLIZATION AND PREPARATION METHOD THEREOF

The present invention provides a reaction apparatus and a processing method thereof, wherein the reaction apparatus includes a main body structure layer and an encapsulation layer, the main body structure layer is integrated with a tube for liquid beads, and the encapsulation layer is stacked at one side of the main body structure layer; the main body structure layer and the encapsulation layer are made from the same material, a melting temperature of the main body structure layer is higher than a melting temperature of the encapsulation layer, and the main body structure layer is connected to the encapsulation layer by way of thermal bonding. The above reaction apparatus has advantages such as integration, structural stability and high strength, as well as significantly improving the stability in generating liquid beads. The present invention further relates to a preparation device of microspheres for embolization and a preparation method thereof. The device is provided by combining three major systems of a feed system, a microsphere generation module and a curing apparatus with a providing device. The device realizes automatic, standardized and controlled production, and significantly improves the production efficiency of the microspheres for embolization, while reaching a purpose of accurately controlling the size of the microspheres for embolization to achieve homogeneity of the particle size of the product, thereby being of great significance in the fields of biomedicine, medical equipment and the like.

REACTION APPARATUS AND PROCESSING METHOD THEREOF, AND PREPARATION DEVICE OF MICROSPHERES FOR EMBOLIZATION AND PREPARATION METHOD THEREOF

The present invention provides a reaction apparatus and a processing method thereof, wherein the reaction apparatus includes a main body structure layer and an encapsulation layer, the main body structure layer is integrated with a tube for liquid beads, and the encapsulation layer is stacked at one side of the main body structure layer; the main body structure layer and the encapsulation layer are made from the same material, a melting temperature of the main body structure layer is higher than a melting temperature of the encapsulation layer, and the main body structure layer is connected to the encapsulation layer by way of thermal bonding. The above reaction apparatus has advantages such as integration, structural stability and high strength, as well as significantly improving the stability in generating liquid beads. The present invention further relates to a preparation device of microspheres for embolization and a preparation method thereof. The device is provided by combining three major systems of a feed system, a microsphere generation module and a curing apparatus with a providing device. The device realizes automatic, standardized and controlled production, and significantly improves the production efficiency of the microspheres for embolization, while reaching a purpose of accurately controlling the size of the microspheres for embolization to achieve homogeneity of the particle size of the product, thereby being of great significance in the fields of biomedicine, medical equipment and the like.

DEVICE AND METHOD FOR PREPARATION OF LIQUID MARBLES

A device for preparation of liquid marbles that has a belt conveyor for carrying a layer of solid particles, the belt conveyor being provided, successively in the direction of movement of the belt with at least one solids dispenser with a reservoir for solid particles, at least one liquid dispenser with a reservoir for liquid, and a separator for separating the prepared liquid marbles from solid particles, is disclosed.

Electrode material and a method of preparing the same

A method of preparing an electrode material includes heating a substrate with a bonding agent to form a self-assembled monolayer-containing material; and depositing a polymer coating onto the self-assembled monolayer-containing material under an elevated temperature to form a layered material. An electrode material and an electrode incorporating the electrode material is also provided.

Electrode material and a method of preparing the same

A method of preparing an electrode material includes heating a substrate with a bonding agent to form a self-assembled monolayer-containing material; and depositing a polymer coating onto the self-assembled monolayer-containing material under an elevated temperature to form a layered material. An electrode material and an electrode incorporating the electrode material is also provided.