Patent classifications
B01J13/14
Method and system for producing calibrated microcapsules
The present invention relates to a method for producing microcapsules having a calibrated diameter and at least one parameter characteristic of the mechanical properties of an equally calibrated microcapsule, characterized in that the method includes the steps of: producing microcapsules by means of injection into a microsystem (10) of three fluids (f1, f2, f3); deforming the microcapsules by means generating a flow within a capillary tube (20); observing and acquiring the outline of at least one deformed microcapsule observed by an optical acquisition means (30); comparing the acquired outline with outlines from a collection of reference microcapsule outlines; determining the diameter and said at least one parameter characteristic of the mechanical properties of the observed microcapsule; and modifying the flow rates (Q1, Q2, and/or Q3) of the fluids (f1, f2, f3). The present invention also relates to a system for producing calibrated microcapsules.
ELECTRICALLY CONDUCTIVE SHEET MOLDING COMPOUND
An electrically conductive fiber reinforced thermosetting resin molding compound which includes a microencapsulated curing agent is provided. Any electrically conductive fillers, including carbon fillers and metal fillers, may be used to impart electrical conductivity to the fiber reinforced thermosetting resin molding compound.
Superparamagnetic colloids with enhanced charge stability for high quality magnetically tunable photonic structures
A method of stabilizing electromagnetically charged particles, which includes coating electromagnetically charged particles with a protective layer; and etching the protective layer to produce a porous protective layer on the electromagnetically charged.
Superparamagnetic colloids with enhanced charge stability for high quality magnetically tunable photonic structures
A method of stabilizing electromagnetically charged particles, which includes coating electromagnetically charged particles with a protective layer; and etching the protective layer to produce a porous protective layer on the electromagnetically charged.
POLYMER MICELLES CONTAINING NANOPARTICLES IN NON-AQUEOUS SOLUTION, METHODS FOR THEIR PREPARATION AND USE
The present invention relates to a composition, comprising at least one micelle in non-aqueous solution, wherein the micelle encapsules one or more nanoparticle(s) and wherein the micelle comprises a cross-linked hydrophilic shell.
Furthermore, the present invention relates to the use of such a composition and to methods for providing such a composition.
MICROCAPSULES AND USES THEREOF
Certain aspects of the present invention relates to microcapsules comprising a core; and a hydrophobic, cross-linked polymeric shell, as well as method for making and using same. Some embodiments of the present invention relate to microcapsules comprising a core; and a hydrophobic, cross-linked polymeric shell. These microcapsules can be used in a variety of applications, including agriculture, encapsulation of food ingredients, health care, cosmetics (e.g., perfumes, detergents, and sunscreen), coatings (e.g., paints and pigments), additives, catalysis, and oil recovery.
MICROCAPSULES AND USES THEREOF
Certain aspects of the present invention relates to microcapsules comprising a core; and a hydrophobic, cross-linked polymeric shell, as well as method for making and using same. Some embodiments of the present invention relate to microcapsules comprising a core; and a hydrophobic, cross-linked polymeric shell. These microcapsules can be used in a variety of applications, including agriculture, encapsulation of food ingredients, health care, cosmetics (e.g., perfumes, detergents, and sunscreen), coatings (e.g., paints and pigments), additives, catalysis, and oil recovery.
Manufacturing process for polysaccharide beads
The invention discloses a method of manufacturing polysaccharide beads, comprising the steps of: i) providing a water phase comprising an aqueous solution of a polysaccharide; ii) providing an oil phase comprising at least one water-immiscible organic solvent and at least one oil-soluble emulsifier; iii) emulsifying the water phase in the oil phase to form a water-in-oil (w/o) emulsion; and iv) inducing solidification of the water phase in the w/o emulsion, wherein the organic solvent is an aliphatic or alicyclic ketone or ether.
Manufacturing process for polysaccharide beads
The invention discloses a method of manufacturing polysaccharide beads, comprising the steps of: i) providing a water phase comprising an aqueous solution of a polysaccharide; ii) providing an oil phase comprising at least one water-immiscible organic solvent and at least one oil-soluble emulsifier; iii) emulsifying the water phase in the oil phase to form a water-in-oil (w/o) emulsion; and iv) inducing solidification of the water phase in the w/o emulsion, wherein the organic solvent is an aliphatic or alicyclic ketone or ether.
Method for producing capsules comprising at least one volatile compound, and resulting capsules
The present invention relates to a process for preparing solid microcapsules comprising the following steps: a) preparation of a composition C1, which is either a composition C1a, comprising a single hydrophobic solid particle, or a composition C1b comprising a plurality of hydrophobic solid particles dispersed in a hydrophilic phase, b) addition with stirring of the composition C1 in a polymeric composition C2 at a temperature T.sub.b, whereby an emulsion (E1) is obtained; c) addition, with stirring, of the emulsion (E1) in a composition C3 at a temperature T.sub.c, whereby a double emulsion (E2) is obtained; d) applying a shear to the emulsion (E2), whereby a double emulsion (E3) is obtained; and e) polymerization of the composition C2, whereby solid microcapsules dispersed in the composition C3 are obtained.