Trucapsol LLC

Praveen Bachawala

Jiten Odhavji Dihora

Anil Khanal

Monoj Pramanik

Disclosed are controlled release particles, each controlled release particle of which includes: (a) a core including at least one hydrophobic active material and an emulsifier which is an oil-soluble or oil-dispersible lecithin emulsifier; and (b) a wall at least partially surrounding the core and including an acid insoluble polymer, a colloidal silica, a water insoluble divalent salt, a film forming polymer, and optionally a powder flow aid, wherein the controlled release particle is configured to retain the at least one hydrophobic active material when exposed to an acidic aqueous solution with a pH less than 6, and to release the at least one hydrophobic active material when exposed to a basic aqueous solution with a pH greater than 7. A method for preparing the particles and compositions containing the particles are also disclosed.

pH triggered release particle

Disclosed is a composition including microcapsules, which include: a core composition including at least one hydrophobic active ingredient; and a wall partially or completely surrounding the core, wherein the wall includes at least one wall material that is a reaction product of a wall-forming reaction selected from: (A) a Type A reaction including: (i) reacting an amine moiety containing material with an epoxy and optionally an isocyanate; and (ii) reacting the isocyanate and at least one polyol; (B) a Type B reaction of a hydrolyzed protein with at least one of an epoxy and an organofunctional silane, and optionally an isocyanate; and (C) a Type C reaction of an amine moiety containing material with at least one of an epoxy and an oil soluble dialdehyde, and optionally an isocyanate. A method for preparing the composition is also disclosed.

Environmentally biodegradable microcapsules

A method is disclosed for preparing a composition including controlled release particles includes: (a) preparing an oil phase including at least one hydrophobic active ingredient, at least one isocyanate, at least one epoxy, at least one organofunctional silane, optionally at least one pre-reacted natural material resin, and optionally a plasticizer; (b) preparing an aqueous phase comprising an emulsifier; (c) combining the oil phase and the aqueous phase to provide an aqueous suspension; (d) adding at least one amine moiety containing material to provide a barrier; (e) heating; (f) adding a natural material to provide a microcapsule having hydroxyl moieties or amine moieties on a surface thereof; (g) adding an aldehyde to react with the surface moieties; and (h) adding structuring agents to provide the controlled release particles homogeneously suspended in an aqueous dispersion. The composition is also disclosed.

Microcapsules comprising natural materials

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 outer layer including a polyurea; (ii) an intermediate layer under the outer layer and including a carbamic-carboxylic anhydride; (iii) an inner layer under the intermediate layer and including an acrylate copolymer; and optionally (iv) an optional outer layer above the outer layer and including a quaternary amine containing moiety, wherein the viscosity of the core can be manipulated from a low viscosity liquid to a semisolid. A method for preparing the composition is also disclosed.

Reduced permeability microcapsules

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.

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 the reaction products of: (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.

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 outer layer including a copolymer of polyacrylamide and polyacrylate; (ii) an intermediate layer under the outer layer and including a polyurea; (iii) an inner layer under the intermediate layer and including an acrylate copolymer; and optionally (iv) an optional outer layer above the outer layer and including a quaternary amine containing moiety, wherein the inner layer is a mesh and 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.

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Allentown, PA, United States of America

Praveen Bachawala