A method of encapsulating particulate materials. The method of encapsulating particulate materials may be used to multi coat a coated thermoplastic particle. The method includes providing an amount of acidified water in an amount to hydrolyze a pre-determined amount of alkoxysilane. A particulate thermoplastic material is dispersed within the acidified water. Once dispersed, an amount of alkoxysilane having a pre-determined formula is added and an amount of time is allowed to pass thereby allowing the alkoxysilane to hydrolyze and build a particle having a pre-determined particle size. Once the particle with pre-determined particle size has been obtained, the particles may be combined with alkoxysilane having a pre-determined formula and an amount of time is allowed to pass thereby allowing the alkoxysilane to hydrolyze and build a particle having a pre-determined particle size. This provides an encapsulated particulate material having one or more coatings thereon.

A method of encapsulating particulate materials. The method of encapsulating particulate materials may be used to multi coat a coated thermoplastic particle. The method includes providing an amount of acidified water in an amount to hydrolyze a pre-determined amount of alkoxysilane. A particulate thermoplastic material is dispersed within the acidified water. Once dispersed, an amount of alkoxysilane having a pre-determined formula is added and an amount of time is allowed to pass thereby allowing the alkoxysilane to hydrolyze and build a particle having a pre-determined particle size. Once the particle with pre-determined particle size has been obtained, the particles may be combined with alkoxysilane having a pre-determined formula and an amount of time is allowed to pass thereby allowing the alkoxysilane to hydrolyze and build a particle having a pre-determined particle size. This provides an encapsulated particulate material having one or more coatings thereon.

The present invention relates to microencapsulation of core materials utilizing one or more unsaturated alkyl carboxylic acids and/or one or more unsaturated alkyl esters which are capable of oxidation and microcapsule formation. The unsaturated alkyl carboxylic acid(s) may specifically include drying oils and/or drying oil components. The unsaturated alkyl ester(s) may specifically include a glycerol ester of a fatty acid.

The present invention relates to microencapsulation of core materials utilizing one or more unsaturated alkyl carboxylic acids and/or one or more unsaturated alkyl esters which are capable of oxidation and microcapsule formation. The unsaturated alkyl carboxylic acid(s) may specifically include drying oils and/or drying oil components. The unsaturated alkyl ester(s) may specifically include a glycerol ester of a fatty acid.

A variety of particles forming microencapsulated thermochromic materials are provided. The particles can include a thermochromic core and a metal oxide shell encapsulating the thermochromic core. The thermochromic core can include one or both of an organic thermochromic material and an inorganic salt thermochromic material. In some aspects, the particles include a dye selected from a crystal violet lactone dye, a fluoran dye, and a combination thereof. In still further aspects, the particles include a color developer selected from a hydroxybenzoate, a 4, 4-dihydroxydiphenyl propane, a hydroxycoumarin derivative, a lauryl gallate, and a combination thereof. In some aspects, the metal oxide shell is a TiO.sub.2 shell. The particles can be used in cements and paints and for a variety of building materials. Methods of making the particles and building materials and methods of use, for example, for removing a volatile organic carbon from a building material, are also provided.

A variety of particles forming microencapsulated thermochromic materials are provided. The particles can include a thermochromic core and a metal oxide shell encapsulating the thermochromic core. The thermochromic core can include one or both of an organic thermochromic material and an inorganic salt thermochromic material. In some aspects, the particles include a dye selected from a crystal violet lactone dye, a fluoran dye, and a combination thereof. In still further aspects, the particles include a color developer selected from a hydroxybenzoate, a 4, 4-dihydroxydiphenyl propane, a hydroxycoumarin derivative, a lauryl gallate, and a combination thereof. In some aspects, the metal oxide shell is a TiO.sub.2 shell. The particles can be used in cements and paints and for a variety of building materials. Methods of making the particles and building materials and methods of use, for example, for removing a volatile organic carbon from a building material, are also provided.

The present invention discloses a fat-soluble nutrient microcapsule and a preparation method thereof. The fat-soluble nutrient microcapsule comprises the following components in percentage by weight: a fat-soluble nutrient (0.2-51.6%), an antioxidant (0.2-5.0%), a wall material (41.4-97.6%) and a moisture (2.0-5.0%) and the ratio of the fat-soluble nutrient that keeps active in the fat-soluble nutrient microcapsule to the fat-soluble nutrient that is initially added is 0.990-0.997:1. The preparation method of the fat-soluble nutrient microcapsule comprises an emulsification process and a granulation process, wherein the emulsification is performed in a cavitation emulsifier. By the preparation method, the nutrient active substance of the fat-soluble nutrient microcapsule has less lost and high stability.

A method of encapsulating particulate materials that enables the particulate materials to be used in end use applications where they currently are not useful. The method uses specific sol gel technology to encapsulate solid particles. In addition, the method can be used to multiple coat a coated particle.

A method of encapsulating particulate materials that enables the particulate materials to be used in end use applications where they currently are not useful. The method uses specific sol gel technology to encapsulate solid particles. In addition, the method can be used to multiple coat a coated particle.

Biocompatible intraocular implants, such as microparticles, include a prostamide component and a biodegradable polymer that is effective in facilitating release of the prostamide component into an eye for an extended period of time. The prostamide component may be associated with a biodegradable polymer matrix, such as a matrix of a two biodegradable polymers. Or, the prostamide component may be encapsulated by the polymeric component. The present implants include oil-in-oil emulsified implants or microparticles. Methods of producing the present implants are also described. The implants may be placed in an eye to treat or reduce a at least one symptom of an ocular condition, such as glaucoma.