СОСТАВ МИКРОКАПСУЛИРОВАННОГО СВЯЗУЮЩЕГО (ВАРИАНТЫ), СПОСОБ ЕГО ПОЛУЧЕНИЯ И СУБСТРАТ

Изобретение относится к сшиваемому полимерному связующему, в частности, к микрокапсулированным связующим и продукции, содержащей такое микрокапсулированное связующее. Описывается состав микрокапсулированного связующего, отличающийся тем, что связующее образуется на месте в капсулах, при этом состав микрокапсулированного связующего включает: в значительной степени водонерастворимый образующий связующее материал сердечника, при этом в состав упомянутого материала сердечника входит хотя бы первый форполимер присоединения, температура стеклования Tg гомополимера которого составляет менее приблизительно 0°С, температура воспламенения не менее 75°С и температура кипения не менее 175°С при давлении в одну атмосферу; растворитель образующего связующее материала сердечника, при этом упомянутый растворитель в значительной степени водонерастворим и не вступает в реакцию с материалом форполимера; достаточное для эффективного катализа количество в значительной степени водонерастворимого свободно-радикального ...

Улучшения органических соединений или относящиеся к органическим соединениям

Immobilisat und Verfahren zum Immobilisieren eines Nutzmaterials

Verfahren zur Herstellung von diagnostischen Mitteln

KAPSELEXTRUSIONSSYSTEME

ENCAPSULATION BY ENTRAPMENT WITHIN POLYHYDROXY POLYMER BORATES

Polymerzusammensetzungen

Partikel auf Basis von Polyhydroxyalkanoat und Verfahren zu deren Herstellung

EXPANDIERBARE MIKROKUGELN UND HERSTELLUNGSVERFAHREN DAFÜR

EINGEKAPSELTES ELEKTROSTATOGRAPHISCHES TONERMATERIAL

VERFAHREN ZUR EINKAPSELUNG EINES EINZUHUELLENDEN MATERIALS

VERFAHREN ZUR HERSTELLUNG VON OEL ENTHALTENDEN MIKROKAPSELN

Kapsel mit organisch-anorganischer Hybridwand

Die vorliegende Erfindung betrifft eine Kapsel, umfassend oder bestehend aus einem Kern und einer den Kern umschließenden Hülle, wobei die Hülle ein polymeres Material umfasst und daraus besteht, welches herstellbar ist durch Reaktion einer Komponente (A) mit einer Komponente (B), wobei Komponente (A) aus einem oder mehreren Aminogruppen tragenden Polysiloxanen besteht und Komponente (B) aus einem oder mehreren Polyisocyanaten besteht.

SELF-COLOURING PRESSURE SENSITIVE RECORDING SHEETS

... 1436798 Microcapsules FUJI PHOTO FILM CO Ltd 14 Aug 1973 [14 Aug 1972] 39509/73 Addition to 1416224 Heading B8C [Also in Division D2] Microcapsules for use in pressure sensitive recording sheets are prepared by emulsifying in a polar liquid capable of forming a continuous phase an oily liquid containing (A) a colour former, and (B) and (C) first and second coreacting wall film-forming materials, adding a third wall film-forming material capable of reacting with the first wall film-forming material to form a high M.W. compound to the polar liquid either before or after emulsification, and forming capsule walls around the oil droplets of the emulsified oily liquid, the capsule walls being formed from inside the oil droplets by a reaction between the first and second wall film-forming materials, and simultaneously, by the reaction at the surface of the oil droplets between the first and third wall film-forming materials. The first wall film-forming material may be selected from polyisocyanates ...

Microencapsulated adhesive compositions and methods of making same

A microencapsulated adhesive is produced from a solvent-based adhesive composition such as a styrene butadiene rubber composition or an acrylic. The solvent-based adhesive composition may be encapsulated by interfacial polymerization, gelatin/gum arabic coacervation or melamine/formaldehyde encapsulation. The solvent is removed from the microcapsules by heating or reduced pressure to form an adhesive that is non-tacky, but becomes tacky upon application of external forces, such as shearing. The microencapsulated adhesive composition may be used, among other applications, as an adhesive for stamps or envelopes.

STORAGE AND DILUTION OF STABLE AQUEOUS DISPERSIONS

ENCAPSULATED ELECTROSTATOGRAPHIC TONER MATERIAL

Microencapsulated drag reducing agents

Microencapsulation process

In a microencapsulation process involving an interfacial polymerization reaction between a compound containing amine groups and a polybasic acid chloride or anhydride, the polymerization being carried out in an emulsion of an aqueous solution in a hydrophobic organic liquid, the reaction is terminated by introducing water into the hydrophobic phase of the emulsion where it reacts with and eliminates the residual acid chloride or anhydride.

A herbicide composition comprising clomazone encapsulated within microcapsules formed by coacervation of amphoteric polymer electrolytes

A herbicide composition comprising clomazone encapsulated within microcapsules formed by coacervation of amphoteric polymer electrolytes. The microcapsules wall is formed from a cellulose derivative, for example carboxymethyl cellulose, a natural gum, for example gum Arabic, and gelatin. The microcapsule wall preferably comprises a cross linking agent, in particular a glycoluril resin. A method for encapsulating clomazone by coacervation is also provided.

MICROENCAPSULATION PROCESS

Encapsulated particles

A composition which comprises at least one solid or liquid particle comprising at least one active substance, the or a plurality of such particles being encapsulated by the in situ cationic (co)polymerization there on of at least on cationically polymerizable monomer or prepolymer.

Preparation of quantum dot beads having a silyl surface shell

A method for preparing quantum dot-containing microbeads comprises: preparing a mixture comprising quantum dots, organosilane monomer, acrylic monomer, cross-linking agent, and initiate or, and a polymer rising the mixture such that the organosilane monomers phase separate from the acrylic monomers yielding polymer microbeads having a silyl surface shell. The mixture may further comprise polyvinyl alcohol. The acrylic monomer maybe lauryl methacrylate. The organosilane monomer may be 3-(trimethoxysilyl) propyl methacrylate. The ratio of acrylic monomer to organosilane monomer may be 1:1-4:1. Microbeads comprising: a polymer interior; a silyl surface shell disposed upon the polymer interior; and quantum dots encapsulated within the point interior are also disclosed. The beads may be between 0.2-1000 µm in diameter.

PRODUCTION OF MICROCAPSULES

... 1475128 3,9 - Bis - (aminoalkyl) - 2,4,8,10- tetraoxaspiro(5,5)undecanes FUJI PHOTO FILM CO Ltd 28 May 1974 [28 May 1973] 23672/74 Heading C2C [Also in Division B8] Heterocyclic diamines having the formula wherein R1 and R1 each represents H or a C 1 -C 4 alkyl group, and R2 and R2' each represents a C 1 -C 7 straight or branched chain alkylene group, or an addition product or a condensation product thereof are prepared by known methods via the corresponding cyanoalkyl derivatives.

Improvements in or relating to metal-polymer compositions

Particles having a metal core partly or wholly encased in a shell of a polymer of an aliphatic 1-olefin monomer are made by treating a metal, a mixture of metals, or an alloy, except an alkali metal, with the components of a multicomponent catalyst system comprising a compound of a metal of Group IVb, Vb, VIb, VIIb, or VIII of the Periodic Table, and an organometallic compound of a metal of Group Ia, IIa, IIb, or IIIa of the Periodic Table and before the catalyst components have fully reacted, bringing the catalyst-treated particles into contact with the olefin until a shell of polymer has formed on the particles. The Periodic Table referred to is the Periodic Chart of Elements from Fundamental Chemistry, 2nd edition, by H. G. Deming. The treatment of the metal particles with the catalyst components is preferably effected in the presence of an inert organic diluent. The metal particles may be in the form of short filaments or fibres. Exemplified metals are lead, boron, mercury, electrolytic ...

Process of microencapsulement.

Process of encapsulation by interfacial polycondensation.

Stable aqueous dispersions of solid substances in insoluble particles in water and processes for their production.

PROCEDURE FOR THE PRODUCTION OF AN ACTIVE SUBSTANCE ABSTENTIONS MICRO CAPS AND THE AFTERWARDS IT AVAILABLE ONE MICRO CAPS

CAPS OF THE TYPE NUCLEAR/CWALL AND APPROPRIATE MANUFACTURING PROCESS

PROCEDURE FOR THE PRODUCTION OF MIKROKAPSLEN, THE ONE INTERLACED MINERAL CONTAINING

CASING PROCEDURE AND TOTALLY ENCLOSED COMPOSITIONS

VERFAHREN ZUR HERSTELLUNG VON SUBMIKROSKOPISCHEN TEILCHEN

GASTRO-INTESTINAL TRACT

PROCEDURE FOR THE PRODUCTION OF COPIED BERRIES

POLYMER COMPOSITIONS

MICRO COMPOUND SYSTEMS AND PROCEDURES FOR YOUR PRODUCTION.

CONTINUOUS ACOUSTIC IRRADIATION PROCEDURE FOR THE PRODUCTION OF PROTEINVERKAPSELTER MICRO VESICLES.

MICRO CAPS WITH WAENDEN FROM A MIXTURE OF INTERLACED POLYHOLOSIDEN AND PROTEINS AS WELL AS PROCEDURES FOR THEIR PRODUCTION.

MICRO CAPS.

PROCEDURE FOR THE PRODUCTION OF COLLOIDAL PARTICLES, WHICH ARE IN THE FORM OF NANO-CAPS

MICRO CAPS

STORAGE AND DILUTION OF STABLE ONE, AQUEOUS DISPERSIONS

THERMALLY EXPAND-CASH MICRO PARTICLE AND PROCEDURE FOR YOUR PRODUCTION

ENZYME CONTAINING PARTICLES AND LIQUID CLEANING AGENT CONCENTRATE

PROCEDURE FOR THE PRODUCTION OF MIKROKAPSELHALTIGEN COMPOSITIONS

ENCAPSULATION OF ACTIVE INGREDIENTS

MICRO CAPS, CONTAINING A STABILIZER MIXTURE FROM CHROMANDERIVATEN, INERT ONES ORGANIC SOLVENTS AND ORGANIC PHOSPHITEN OR PHOSPHONITEN AND/OR AMINES.

PROCEDURE FOR THE PRODUCTION OF DIAGNOSTICA

PROCEDURE AND DEVICE FOR THE PRODUCTION OF CELEBRATIONS PARTICLES FROM A LIQUID MEDIUM

HARD CAPS, CONTAINING POLYMERS OF VINYLESTERN AND POLYETHERN, THEIR USE AND PRODUCTION

Oil absorbing composition and process

MICROENCAPSULATION PROCESS

In situ microencapsulated adhesive

PROCESS FOR PREPARING SILICONE MICROPARTICLES

PROCESS

PROCESS FOR PRODUCING ASPHERIC SEAMLESS CAPSULE AND APPARATUS THEREFOR

Method for production of concentrates of preferably water-soluble active agents

The invention relates to a method for production of concentrates of water-soluble active agents, wherein, in a waterless method using solid active agents as starting materials, the crystals of an active agent are uniformly distributed in a first organic solvent to which a dispersing agent is added, the viscosity of the solution thus obtained is adjusted as applicable by a suitable auxiliary agent, a polymer creator is added to the solution thus obtained, in a second organic solvent as applicable, wherein the viscosity of either the solution to be added or the solution to be obtained is adjusted by the addition of a suitable auxiliary agent, and a crosslinking agent having at least two functional groups in a third organic solvent is given to the obtained solution, wherein the viscosity of either the added or obtained solution is in turn adjusted by the addition of a suitable auxiliary agent and the polymer creator is selected from the group comprising low-viscosity polymethylene-polyphenylisocyanate ...

Packing list manifest

Thermoplastic microspheres

Gelified microspheres, method of preparation and applications

Process for the preparation of spherical microparticles containing biologically active compounds

MICRO COMPOSITE SYSTEMS AND PROCESSES FOR MAKING SAME

Neonanoplasts and microemulsion technology for inks and ink jet printing

Method for the production of micro capsules

Resin encapsulated particles

Multi-step method for producing gas-filled microcapsules with defined narrow size distribution by defined forced gassing during the formation of the microcapsules

MICROENCAPSULATION

SERRS REACTIVE PARTICLES

The present invention relates to the provision of SERRS active polymer beads and a method of their production for use in detecting target molecules, as well as methods of detecting target molecules.

PARTICULATE COMPOSITIONS AND THEIR MANUFACTURE

A composition comprising particles which comprise a core material within a polymeric shell, wherein the core material composes a hydrophobic substance, characterised in that the polymeric shell comprises a copolymer formed from a monomer blend which comprises, A) 30 to 90 % by weight methacrylic acid B) 10 to 70 % by weight alkyl ester of (meth)acrylic acid which is capable of forming a homopolymer of glass transition temperature in excess of 60 .degree.C and C) 0 to 40 % by weight other ethylenically unsaturated monomer. The core material can comprise an active ingredient selected from the group consisting of UV absorbers, UV reflectors, pigments, dyes, colorants, scale inhibitors, corrosion inhibitors, antioxidants, pour point depressants, wax deposition inhibitors, dispersants, flame retardants, biocides, active dye tracer materials and phase change materials. The composition has the advantage that the polymeric shell is highly impermeable to the core material even at elevated temperatures ...

OIL ABSORBING COMPOSITION AND PROCESS

The present invention relates to a hollow sphere polymer composition suitable for absorbing active ingredients including oily substances and hydrophobic materials. A process for encapsulating one or more active ingredients using hollow sphere polymers is described.

MICRO-PARTICLES, BLOOD-SUBSTITUTE AND METHOD FOR FORMING SAME

A method for forming micro-particles is provided. The method includes the steps of: - providing a first solution which includes at least an anion; - providing a second solution which includes at least a cation; -mixing the first solution with the second solution in presence of at least a first compound for forming porous templates, wherein the porous templates are formed by precipitation of a salt which includes the anion and the cation and wherein the first compound is at least partially incorporated in the porous templates; and - at least partially cross-linking the first compound in the porous templates.

LATENT LEWIS ACID CATALYST

Microcapsules with liquid fills containing Lewis acid catalysts, catalyst concentrates comprising slurries of the microcapsules in liquid media, and a method for preparing the microcapsules and concentrates, The catalyst concentrates of the present invention are storage stable both alone and when incorporated in a one-part epoxy formulation.

PROCESS FOR THE PRODUCTION OF A PRESSURE-SENSITIVE CARBONLESS COPY SHEET USING MICROCAPSULES FORMED IN SITU IN A RADIATION CURABLE BINDER

A process is provided for the production of a coating composition containing microcapsules having a hydrophilic core for use in the manufacture of pressure-sensitive carbonless transfer papers comprising the following steps. A hydrophilic emulsion component is prepared by dispersing at least one chromogenic material being soluble in the hydrophilic liquid. A hydrophobic emulsion component is prepared by dispersing an emulsifier in a radiation curable hydrophobic liquid. A first wall-forming material and a second wall-forming materialare added to the hydrophobic emulsion component, with mixing. The first and second wall-forming materials are soluble in the hydrophobic emulsion component,and the first wall-forming material is reactive with the second wall-forming material to form a polymeric capsule wall. The resultant polymeric capsule wallis substantially insoluble in the hydrophilic and the hydrophobic emulsion com-ponents. The hydrophobic emulsion component is mixed together with the ...

PROCESS FOR THE PRODUCTION OF A PRESSURE SENSITIVE RECORDING PAPER

POLYIONIC MICROENCAPSULATION

POLYIONIC MICROENCAPSULATION A new process has been developed for damage-free encapsulation of a variety of core materials including viable cells. The core material is suspended in an aqueous solution of a polymeric material containing cationic groups such as an aminated glucopolysaccharide. A temporary matrix is formed by gelling droplets of the suspension with a divalent or multivalent anion. The temporary matrix is permanently cross-linked with a polymeric material containing plural anionic groups, e.g., polyaspartic or polyglutamic acid, to form a semipermeable membrane, The interior of the microcapsule may be resolublized by subjecting the capsule to a solution of low molecular weight cations. The process produces microcapsules which are not sticky, do not clump and allow viable cell growth and proliferation.

MICROENCAPSULATION OF BIOLOGICALLY ACTIVE MATERIAL

HOE 87/F 055 of the disclosure Polyelectrolyte membrane capsules are composed of a semipermeabLe membrane and an active material enclosed by it, the membrane being formed of a biocompatible, non-toxic polyacid and a polybase; the polybase is composed of repeating monomer units of the formula (I) in which R1 and R2 have the indicated meanings.

PROCESS FOR THE PREPARATION OF SUBMICROSCOPIC PARTICLES, THE PARTICLES THUS OBTAINED AND THE PHARMACEUTICAL COMPOSITIONS IN WHICH THEY ARE PRESENT

The present invention provides for a process for the preparation of submicroscopic particles formed of a polymerized alkyl cyanoacrylate and containing a biologically active substance. At least one alkyl cyanoacrylate, in which the term "alkyl" denotes an alkyl radical having 1 to 12 carbon atoms, is added, with stirring, to pure water or to an aqueous solution or aqueous colloidal solution of an acid and/or of another watersoluble substance, and the stirring is continued until substantially all the alkyl cyanoacrylate has been converted to submicroscopic particles formed of polyalkyl cyanoacrylate; a biologically active substance is introduced into the reaction medium before the introduction of the monomer or after the formation of the submicroscopic particles. The submicroscopic particles are useful as carriers for substances such as medicinal substances or products for diagnosis.

MICROENCAPSULATION BY INTERCHANGE OF MULTIPLE EMULSIONS

A method of microencapsulation is disclosed whereby two or more organic-in-aqueous emulsions, each containing a reactive component in the organic phase, are mixed together causing the reactive components to react and form polymeric walls around the organic droplets. Either or both emulsions may contain one or more fill materials in their organic phases.

PARTICULATE MATERIAL SUITABLE FOR SELECTIVELY SEPARATING METAL CATIONS FROM AQUEOUS SOLUTIONS, PROCESS FOR ITS PRODUCTION, AND USE THEREOF

The invention relates to particulate material for separation of metal cations from aqueous solutions. These particles contain complexing agents dispersed in a continuous aqueous phase which is embedded in or is a constituent of a hydrophilic gel and/or is encapsulated by a water-insoluble, ion-permeable shell.

SATIETY ENHANCING FOOD PRODUCTS

The present invention provides a food product comprising an amount of from 0.1 to 20 %wt of an encapsulated satiety agent having a weight average mean particle size in the range of from 1 to 250 ~m, wherein the satiety agent is encapsulated by a cross-linked encapsulation material having a degree of cross- linking of at least 20% and further wherein upon consumption of the food product by a subject the satiety agent is predominantly released from the encapsulation material in the intestines of that subject. Also provided is a method of preparing the food product. The food product is preferably a meal replacer product or a weight control product.

PREPARATION OF MICROCAPSULES USING DISPERSED POLYMER AS OUTER SHELL

FOAM INSULATION MADE WITH EXPANDABLE MICROSPHERES AND METHODS

A polyurethane and/or polyisocyanurate foam is made using expandable microspheres which encapsulate a primary blowing agent. By expanding during the foam making process, the microspheres function as a blowing agent. The foam preferably has at least 10% by weight expandable micro spheres which encapsulate a non-halogenated hydrocarbon chemical or a non-halogenated hydrocarbon chemical blend and less than 2% by weight of any non-encapsulated blowing agents.

ACTIVE MATERIAL WITHIN HYDROGEL MICROBEADS

A method of delivering active material using microbeads comprising droplets of active material entrained in a hydrophilic matrix. Compositions comprising the microbeads may be sprayable. The microbeads of the invention may be controllable by exposing the microbeads to high or low humidity or moisture.

PROCESS FOR PREPARING SILICONE MICROPARTICLES

DETECTION OF TARGET MOLECULES USING SERRS REACTIVE PARTICLES

... ²²²The present invention relates to the provision of SERRS active polymer beads ²and a method of their production for use in detecting target molecules, as ²well as methods of detecting target molecules.² ...

PROTEIN-POLYSACCHARIDE MICROCAPSULES FOR DELIVERING ACTIVE AGENTS TO THE GI TRACT

... ²²²A micro encapsulation material for use with storage unstable, therapeutic and ²nutritional agents which release the therapeutic and nutritional agents in ²predetermined locations in the gastro intestinal tract in which the ²encapsulation material is formed by combining a food grade treated ²carbohydrate with a water soluble food grade protein. The therapeutic and ²nutritional agents form an oil phase that is emulsified with the water ²dispersed or dissolved encapsulant to encapsulate the therapeutic and ²nutritional agents. These agents may be oils or oil soluble or oil ²dispersible. The agents that may be encapsulated include lipids (oils ²including oxygen sensitive oils, fatty acids, triglycerides) and oil soluble ²and oil dispersible ingredients (including pharmaceuticals, probiotics, ²protein therapeutics and bioactives). The protein used may include any film ²forming water soluble protein or hydrolysed protein and includes milk proteins ²such as casein and its derivatives or whey ...

MICROCAPSULES, THEIR USE AND PROCESSES FOR THEIR MANUFACTURE

A microcapsule comprising A) a core containing a hydrophobic liquid or wa x, B) a polymeric shell comprising a) a polymer formed from a monomer mixtur e containing: i) 1 to 95% by weight of a hydrophobic mono functional ethylen ically unsaturated monomer, ii) 5 to 99% by weight of a polyfunctional ethyl enically unsaturated monomer, and iii) 0 to 60% by weight of other mono func tional monomer, and b) a further hydrophobic polymer which is insoluble in t he hydrophobic liquid or wax. The invention includes a process for the manuf acture of particles and the use of particles in articles, such as fabrics, a nd coating compositions, especially for textiles.

ENCAPSULATED PARTICLE

An encapsulated particle includes a core particle and a polyurethane disposed about the core particle. The polyurethane includes the reaction product of an aromatic isocyanate component and a polyol component. The polyol component includes a polyol derived from an aromatic amine-based initiator and an aliphatic polyether polyol. The polyol derived from the aromatic amine-based initiator has a nominal functionality of 4. The aliphatic polyether polyol has a nominal functionality of from 2 to 4. The weight ratio of the polyol derived from the aromatic amine-based initiator and the aliphatic polyether polyol is from about 1:2 to 2:1. A method of forming the encapsulated particle is also provided.

PHARMACEUTICAL COMPOSITIONS CONTAINING NANOCAPSULES

A pharmaceutical composition in the form of a colloidal suspension of nanocapsules, comprising an oily phase consisting essentially of an oil containing dissolved therein a surfactant and suspended therein a plurality of nanocapsules having a diameter of less than 500 nanometers, said nanocapsules encapsulating an aqueous phase consisting essentially of a solution or a suspension of a therapeutically active substance, a surfactant and optionally ethanol; a process for preparing the said composition is also described. The walls of said nanocapsules are formed from a poly(alkyl 2-cyanoacrylate) wherein the alkyl radical has 1 to 6 carbon atoms. This composition is particularly suitable for oral administration of polypeptides and polysaccharides.

PHARMACEUTICAL COMPOSITIONS CONTAINING NANOCAPSULES

A pharmaceutical composition in the form of a colloidal suspension of nanocapsules, comprising an oily phase consisting essentially of an oil containing dissolved therein a surfactant and suspended therein a plurality of nanocapsules having a diameter of less than 500 nanometers, said nanocapsules encapsulating an aqueous phase consisting essentially of a solution or a suspension of a therapeutically active substance, a surfactant and optionally ethanol; a process for preparing the said composition is also described. The walls of said nanocapsules are formed from a poly(alkyl 2-cyanoacrylate) wherein the alkyl radical has 1 to 6 carbon atoms. This composition is particularly suitable for oral administration of polypeptides and polysaccharides.

USE OF A POLYMER MATERIAL ON THE BASIS OF MODIFIED HYDROCOLLOIDS AS A COATING, COVERING WALL MATERIAL

The present invention relates to the use of a polymer material on the basis of modified hydrocolloids as covering material for critical working substances.

Method for Production of Microcapsule Type Conductive Filler

RESIN ENCAPSULATED PARTICLES

Aminoplast and phenoplast particules are obtained by providing an aqueous solution of such a resin having a water tolerance level, adding a particulate core-forming material in solid form, e.g. mineral particles or cured resin particles, as well as a mixture of water and a stabilizing agent, the amount of water being sufficient to exceed the water tolerance level of the aminoplast or phenoplast, and thus forming an emulsion or suspension of the resin coated particles in water, and advancing cure of the resin to form partially or fully cured resin coatings having a thickness preferably about 5-75 .mu.m encapsulating the particulate core-forming material.

Verfahren zur Herstellung eines festen, Halogen freisetzenden Materials

Procédé de traitement de microcapsules

Procédé de traitement de capsules minuscules en vue de réduire la perméabilité des parois capsulaires

Verfahren zum Verkapseln von Tröpfchen einer Flüssigkeit

Verfahren zur Herstellung von Dispersionen von festen mit synthetischem Polymer umhüllten Teilchen

Silica particle including a molecule of interest, method for preparing same and uses thereof

What is provided includes a nanoparticle of porous silica, incorporating at least one molecule of interest, the silica network inside said nanoparticle being functionalized by at least one group capable of setting up an ionic and/or hydrogen non-covalent bond with the molecule of interest, whereby the molecule(s) of interest is(are) linked to the silica network solely by non-covalent bonds. In addition, a method for preparing said silica particle and uses thereof is provided.

Process For Producing Microcapsules

The application describes a process for producing microcapsules which contain a shell made of polyurea and which surround in their interior a water-insoluble oil, where the shell is obtained by the reaction of two structurally different diisocyanates in emulsion form. 1. A process for producing microcapsules which contain a shell and a core of a liquid , water-insoluble material , the process comprising:bringing together an aqueous solution of a protective colloid and a solution of a mixture of at least two structurally different at least difunctional diisocyanates (A) and (B) in a water-insoluble liquid until an emulsion is formed;adding an at least difunctional amine to the emulsion; andheating to a temperature of at least 60° C. until the microcapsules are formed,wherein the isocyanate (B) is selected from the anionically modified isocyanates or the polyethylene oxide-containing isocyanates and the isocyanate (A) is uncharged and is not a polyethylene oxide-containing isocyanate.2. The process of claim 1 , wherein the protective colloid comprises a polyvinylpyrrolidone.3. The process of claim 1 , wherein the isocyanate (A) is selected from the group consisting of hexane 1 claim 1 ,6-diisocyanate claim 1 , hexane 1 claim 1 ,6-diisocyanate biuret claim 1 , or oligomers of hexane 1 claim 1 ,6-diisocyanate.4. The process of claim 1 , wherein the isocyanate (B) is selected from the group of anionically modified diisocyanates which contain at least one sulfonic acid group.5. The process of claim 1 , wherein the at least difunctional amine comprises a polyethyleneimine.6. The process of claim 1 , wherein the weight ratio between the isocyanates (A) and (B) is in the range of from 10:1 to 1:10.7. The process of claim 1 , wherein the core-shell ratio (w/w) of the microcapsules is 20:1 to 1:10.8. The process of claim 1 , further comprising:(a) preparing a first premix (I) from water and the protective colloid;(b) adjusting a pH of the first premix in the range of from 5 to ...

Encapsulation System and Method

An encapsulation system and method including a solution having a first system with a first rate of removal, a second system with a second rate of removal, and a material soluble in the first system, but not soluble in the second system. The first rate of removal is quicker than the second rate of removal, and removal of the first system from the solution creates a concentration of the second system and the material migrates around the second system. Thus, the material creates a shell around the second system, generating a capsule with a shell of the material and a core of the second system. Such material may include a polymer, copolymer, or block copolymer, while the second system is poor solvent for the material, such as hexadecane or Oil Red O. The first system is a good solvent for the material and is readily removable from solution via evaporation during processes like electrospraying. 1. A tri-phase system for encapsulation , comprising:a first solvent having a first evaporation rate;a second solvent having a second evaporation rate;wherein the first evaporation rate is quicker than the second evaporation rate;a polymer positioned within the first solvent; andwherein evaporation of the first solvent results in a formation of an encapsulation by a concentration of the polymer around the second solvent.2. The tri-phase system of claim 1 , wherein one of the first solvent and the second solvent is hydrophilic and the other of the first solvent and the second solvent is hydrophobic.3. The tri-phase system of claim 1 , further comprising a hydrophobic material in the second solvent.4. The tri-phase system of claim 3 , wherein the hydrophobic material is a dye.5. The tri-phase system of claim 1 , wherein evaporation of the first solvent further results in the polymer migrating around the second solvent to form a shell around the second solvent.6. The tri-phase system of claim 1 , wherein the polymer is at least one of: poly methyl methacrylate (PMMA) claim 1 , ...

ENCAPSULATION METHOD

The present invention relates to a method for preparing solid capsules comprising a compound A, dispersed in a composition C4. 1. A method for preparing solid capsules , comprising the following steps: C1 and C2 not being miscible with each other,', 'C2 being at temperature T2,', 'whereby an emulsion is obtained comprising drops of composition C1 dispersed in the composition C2,, 'a) adding with stirring a composition C1 comprising at least one compound A, in a liquid composition C2 comprising a thermo-expansible material,'} C3 and C2 not being miscible with each other,', 'C3 being at temperature T3, preferably equal to T2,', 'whereby an emulsion is obtained comprising drops dispersed in the composition C3,, 'b) addition with stirring of the emulsion obtained in step a) into a liquid composition C3 able to be polymerized,'} C4 and C3 not being miscible with each other,', 'C4 being at temperature T4 less than or equal to T2 and less than or equal to T3,', 'whereby an emulsion is obtained comprising drops dispersed in the composition C4, and, 'c) addition with stirring of the emulsion obtained in step b) in a liquid composition C4,'}d) polymerization of the drops obtained in step c),whereby solid capsules are obtained, dispersed in the composition C4.2. The method according to claim 1 , wherein the composition C1 is a solution comprising the compound A in a solubilized form.3. The method according to claim 1 , wherein the composition C1 is an emulsion formed with drops of a solution comprising the compound A in a solubilized form claim 1 , said drops being dispersed in a composition C′3 able to be polymerized.4. The method according to claim 1 , wherein after step b) and before step c) claim 1 , steps a) and b) are repeated at least once.5. The method according to claim 1 , wherein the thermo-expansible material is selected from the group consisting of waxes claim 1 , fluorocarbons claim 1 , and mixtures thereof.6. The method according to claim 1 , wherein the thermo- ...

ENCAPSULATION BY CROSS-LINKING OF ANIONIC POLYMERS BY PH INDUCED DISSOCIATION OF CATION-CHELATE COMPLEXES

Microencapsulation methods are provided using encapsulant, fiber or film forming compositions of a cross-linkable anionic polymer, a multivalent cation salt, a chelating agent, and a volatile base. During the formation of this composition, the generally acidic chelating agent is titrated with a volatile base to an elevated pH to improve ion-binding capability. Multivalent cations are sequestered in cation-chelate complexes. Cross-linkable polymers in this solution will remain freely dissolved until some disruption of equilibrium induces the release of the free multivalent cations from the cation-chelate complex. Vaporization of the volatile base drops the pH of the solution causing the cation-chelate complexes to dissociate and liberate multivalent cations that associate with the anionic polymer to form a cross-linked matrix. During spray-drying, the formation of a wet particle, polymer cross-linking, and particle drying occur nearly simultaneously. 1. A method of cross-linking polymer molecules , the method comprising:(a) providing a solution of an acidic chelating agent with a volatile base;(b) adding at least one source of multivalent cations to form cation-chelate complexes in the solution;(c) mixing molecules of at least one anionic polymer with the solution of cation-chelate complexes and volatile base; and(d) vaporizing the volatile base of the solution, thereby disassociating the cation-chelate complexes and releasing multivalent cations and cross-linking the polymer molecules with said multivalent cations.2. The method of claim 1 , said acidic chelating agent solution further comprising a weak acid buffer.3. The method of claim 2 , wherein said weak acid is an acid selected from the group consisting of benzoic acid claim 2 , lactic acid claim 2 , ascorbic acid claim 2 , adipic acid claim 2 , acrylic acid claim 2 , glutaric acid claim 2 , ascorbic acid claim 2 , gallic acid claim 2 , caffeic acid claim 2 , L-Tartaric acid claim 2 , D-Tartaric acid claim 2 , ...

WATER RESISTANT VOIDED POLYMER PARTICLES

Latex emulsions and a process of making the same that incorporates voided latex particles having a core with a hydrophilic component; at least one intermediate shell with, as polymerized units, one or more hydrophilic monoethylenically unsaturated monomer, one or more nonionic monoethylenically unsaturated monomer, or mixtures thereof; an outer shell formed of a polymer having a Tg of at least 60? C; and a surface treatment applied to the outer shell in which a plurality of silicone oligomers with reactive functional groups are cross-linked with one another in order to provide a cross-linked outer surface. The core and the at least one intermediate shell are contacted with a swelling agent in the presence of less than 0.5% monomer based on the overall weight of the voided latex particles. In addition, one or more of the core, the intermediate shell, or the outer shell includes a surfactant. 1. Hollow or voided latex particles comprising:a core comprising a hydrophilic component;at least one intermediate layer comprising, as polymerized units, one or more hydrophilic monoetheylenically unsaturated monomer, one or more nonionic monoethylenically unsaturated monomer, or mixtures thereof;{'sub': 'g', 'an outer shell comprising a polymer having a Tof at least 60° C.; and'}a surface treatment applied to the outer shell comprising a plurality of silicone monomers, oligomers and/or polymers having polymerizable or cross-linkable functional groups, the functional groups being cross-linked with one another in order to provide a cross-linked outer surface;wherein the core and the at least one intermediate layer are contacted with a swelling agent in the presence of less than 0.5% monomer based on the overall weight of the voided latex particles,wherein one or more of the core, the intermediate layer, or the outer shell includes sodium dodecylbenzene sulfonate, and optionally other surfactants.2. The hollow or voided particles of claim 1 , wherein the particles further comprise ...

Substance-encapsulating vesicle and process for producing the same

Provided is a method for easily and efficiently producing encapsulated substance vesicles wherein a substance is encapsulated in the cavity of vesicles obtained by polymer self-assembly. Empty vesicles that have membranes comprising a first polymer that is a block copolymer with uncharged hydrophilic segments and a first kind of charged segments and a second polymer with a second kind of charged segments that carry a charge that is the opposite of said first kind of charged segments as well as spaces that are enclosed by said membranes are mixed in an aqueous medium with the substance that is to be encapsulated in the spaces.

Controlled Release Polymer Encapsulated Fragrances

The present disclosure relates to fragrance materials encapsulated within polymeric materials in the form of microcapsules of polymer encapsulated fragrance. The microcapsules are mixed with a water-based binding agent so that a coating forms on the microcapsule in situ, after which the coated microcapsules may be applied to hard surfaces of a product, from which controlled release of the fragrance is provided over time as the product is subjected to normal handling by a user. 1. A treatment solution for application to a hard surface , comprising:water; and a fragrance material encapsulated within polymeric materials in the form of microcapsules of polymer encapsulated fragrance, wherein the water solubility of the fragrance material is 0.001 mol/L or less, and', 'a binding agent having a water solubility of at least 0.1 mol/L, wherein the binding agent covers at least 80% of an outer surface of the microcapsules;, 'a composition comprising'}wherein the treatment solution contains water as the only solvent outside of the microcapsules, andwherein the microcapsules do not contain any surfactants or fixatives.2. The treatment solution of claim 1 , wherein a weight ratio of binding agent to microcapsule is in the range of about 1:1 to about 4:1.3. The treatment solution of claim 1 , wherein the binding agent is a cross-linked acrylate polymer.4. The treatment solution of claim 1 , comprising 10 vol % microcapsules and 10 vol % binding agent.5. The treatment solution of claim 1 , wherein the fragrance material is in the form of a liquid.6. The treatment solution of claim 5 , wherein the fragrance material comprises an aroma selected from food claim 5 , vegetable claim 5 , fruit claim 5 , plant claim 5 , floral claim 5 , spice claim 5 , and natural environment aromas claim 5 , and combinations thereof claim 5 , dispersed in a non-aqueous liquid.7. The treatment solution of claim 1 , wherein the fragrance material comprises isopropyl myristate claim 1 , diethyl phthalate ...

MICROCAPSULES FOR TWO-STEP ANTICOUNTERFEITING

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. 1. A microcapsule , comprising:an outer shell;a molecular sensitizer;a molecular annihilator; andan inner shell separating the molecular sensitizer from the molecular annihilator.2. The microcapsule of claim 1 , wherein the outer shell comprises a transparent polymer.3. The microcapsule of claim 1 , wherein the inner shell comprises a polyelectrolyte crosslinked by photodimers.4. The microcapsule of claim 1 , wherein the inner shell comprises magnetic nanoparticles embedded in a polyelectrolyte multilayer.5. The microcapsule of claim 1 , wherein the molecular sensitizer is selected from the group consisting of palladium(II) octabutoxyphthalocyanine and platinum(II) tetraphenyltetranaphthoporphyrin.6. The microcapsule of claim 1 , wherein the molecular annihilator is selected from the group consisting of a furanyldiketopyrrolopyrrole and a perylene.7. A method claim 1 , comprising: an outer shell;', 'a molecular sensitizer;', 'a molecular annihilator; and', 'an inner shell separating the molecular sensitizer from the molecular annihilator., 'forming microcapsules, each of the microcapsules comprising8. The method of claim 7 , further comprising:depositing the microcapsules on an object;rupturing the inner shell of at least one of the microcapsules; andexposing the microcapsules to low-energy photons.9. The method of claim 8 , wherein the depositing the microcapsules on the object comprises arranging the microcapsules to form a pattern.10. The ...

MICROCAPSULES

What are proposed are microcapsules comprising 1. A microcapsule comprising(a) a core comprising at least one active, and(b) a capsule wall,wherein the capsule wall comprises at least three polymer layers and at least one of the polymer layers comprises a first phenolic resin,the first phenolic resin comprises 3% to 50% by weight of moieties that derive from at least one aromatic polyol, and at least one further polymer layer consists of a second phenolic resin, andthe second phenolic resin comprises 3% to 50% by weight of moieties that derive from at least one triphenol.2. The microcapsule as claimed in claim 1 , wherein the at least three polymer layers have an alternating structure claim 1 , and a polymer layer comprising a phenolic resin is separated in each case by a polymer layer comprising an amino resin.3. The microcapsule as claimed in claim 1 , wherein the aromatic polyol moieties derive from resorcinol.4. The microcapsule as claimed in claim 1 , wherein the triphenol moieties derive from phloroglucinol.5. The microcapsule as claimed in claim 1 , wherein the capsule wall content claim 1 , based on the slurry claim 1 , is 0.3% to 3% by weight.6. A method of producing the microcapsule as claimed in claim 1 , comprising the following steps:(a) providing a first aqueous formulation comprising at least one aldehyde or at least one polyamine precondensate;(b) providing an oil phase comprising the active to be encapsulated and at least one aromatic polyol;(c) mixing the aqueous phase with the oil phase in the presence of at least one emulsifier and/or stabilizer to form an emulsion;(d) initiating the polymerization;(e) adding at least one polyamine or a polyamine precondensate;(f) leaving the mixture to rest at 40 to 70° C. for 40 to 80 minutes;(g) adding at least one triphenol;(h) adding at least one aldehyde or at least one polyamine precondensate;(i) leaving the mixture to rest at 40 to 70° C. for 40 to 80 minutes;(j) crosslinking and curing the microcapsules ...

SUPRAMOLECULAR CAPSULES

Provided is a capsule having a shell of material that is a supramolecular cross-linked network. The network is formed from a host-guest complexation of cucurbituril (the host) and one or more building blocks comprising suitable guest functionality. The complex non-covalently crosslinks the building block and/or non-covalently links the building block to another building block thereby forming the supramolecular cross-linked network. The capsules are obtained or obtainable by the complexation of a composition comprising cucurbituril and one or more building blocks having suitable cucurbituril guest functionality thereby to form a supramolecular cross-linked network. 1. A capsule having a shell which is obtainable from the complexation of a composition comprising a host and one or more building blocks having suitable host guest functionality thereby to form a supramolecular cross-linked network.2. The capsule of claim 1 , wherein the host is selected from cucurbituril claim 1 , cyclodextrin claim 1 , calix[n]arene claim 1 , and crown ether claim 1 , and the one or more building blocks have suitable host guest functionality for the cucurbituril claim 1 , cyclodextrin claim 1 , calix[n]arene or crown ether host.3. The capsule of claim 2 , wherein the host is cucurbituril and the one or more building blocks have suitable cucurbituril guest functionality.4. The capsule of claim 3 , wherein the shell is obtainable from the complexation of (a) a composition comprising cucurbituril and (1) or (2); or (b) a composition comprising a plurality of covalently linked cucurbituril and (1) claim 3 , (2) or (3) claim 3 , wherein:(1) comprises a first building block covalently linked to a plurality of first cucurbituril guest molecules and a second building block covalently linked to a plurality of second cucurbituril guest molecules, wherein a first guest molecule and a second guest molecule together with cucurbituril are suitable for forming a ternary guest-host complex,(2) comprises ...

AQUEOUS RESIN BASED INKJET INKS

An inkjet ink includes a) an aqueous medium; and b) capsules composed of a polymeric shell surrounding a core; wherein the capsules are dispersed in the aqueous medium using a dispersing group covalently bonded to the polymeric shell; the core contains one or more chemical reactants capable of forming a reaction product upon application of heat and/or light; the polymeric shell includes a-polymer selected from the group consisting of polyureas, polyesters, polycarbonates, polyamides, and melamine based polymers and copolymers thereof; and the capsules have an average particle size of no more than 4 μm as determined by dynamic laser diffraction. 115-. (canceled)16. An inkjet ink comprising:an aqueous medium; andcapsules including a polymeric shell surrounding a core; whereinthe capsules are dispersed in the aqueous medium including a dispersing group covalently bonded to the polymeric shell;the core includes one or more chemical reactants that form a reaction product upon application of heat and/or light;the polymeric shell includes a polymer selected from the group consisting of polyureas, polyesters, polycarbonates, polyamides, and melamine based polymers, and mixtures thereof; andthe capsules have an average particle size of no more than 4 μm as determined by dynamic laser diffraction.17. The inkjet ink according to claim 16 , wherein the dispersing group is selected from the group consisting of a carboxylic acid or salt thereof claim 16 , a sulfonic acid or salt thereof claim 16 , a phosphoric acid ester or salt thereof claim 16 , a phosphonic acid or salt thereof claim 16 , an ammonium group claim 16 , a sulfonium group claim 16 , a phosphonium group claim 16 , and a polyethylene oxide group.18. The inkjet ink according to claim 16 , wherein the polymeric shell includes a polymer selected from the group consisting of a polyamide claim 16 , a melamine based polymer claim 16 , a poly(urea-urethane) polymer claim 16 , and copolymers thereof.19. The inkjet ink ...

CAPSULE CONTAINING FUNCTIONAL SUBSTANCE AND METHOD FOR MANUFACTURING SAID CAPSULE

It is an object of the present invention to provide a capsule comprising a functional substance and having good shape stability and a good feeling of use. A method for producing a capsule, comprising steps of mixing gelatin and a functional substance; adding a carbodiimide crosslinking agent to crosslink the gelatin with the carbodiimide crosslinking agent; solidifying the crosslinked gelatin; and grinding the solidified gelatin. 1. A method for producing a capsule , comprising steps of:mixing gelatin and a functional substance;adding a carbodiimide crosslinking agent to crosslink the gelatin with the carbodiimide crosslinking agent;solidifying the crosslinked gelatin; andgrinding the solidified gelatin.2. The production method according to claim 1 , wherein the gelatin is crosslinked in a solution comprising the carbodiimide crosslinking agent at a concentration of 5 mM to 200 mM.3. The production method according to claim 1 , wherein the gelatin and the carbodiimide crosslinking agent are reacted at a concentration ratio of 1:0.06 to 1:0.2.4. The production method according to claim 1 , wherein the carbodiimide crosslinking agent is selected from the group consisting of 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide claim 1 , 1-cyclohexyl-3-(2-morpholinyl-4-ethyl)carbodiimide claim 1 , dicyclohexylcarbodiimide claim 1 , diisopropylcarbodiimide claim 1 , and salts thereof.5. The production method according to claim 1 , wherein the gelatin has a jelly strength of 100 g or more.6. A capsule comprising a functional substance claim 1 , and gelatin crosslinked with a carbodiimide crosslinking agent.7. The capsule according to claim 6 , wherein the gelatin has a jelly strength of 100 g or more.8. The capsule according to claim 6 , wherein the gelatin is acid-treated gelatin. The present invention relates to a capsule comprising a functional substance, and a method for producing the same. More particularly, the present invention relates to a crosslinked gelatin capsule ...

SUGAR ALCOHOL MICROCAPSULE, SLURRY, AND RESIN MOLDED ARTICLE

A sugar alcohol microcapsule obtained by mixing particles that include molten sugar alcohol and are dispersed in an oil phase with a material that reacts with the particles, and encapsulating the sugar alcohol. 1. A production method for a sugar alcohol microcapsule , comprising: obtaining a sugar alcohol microcapsule by mixing particles that include molten sugar alcohol and are dispersed in an oil phase with a material that reacts with the particles , and encapsulating the sugar alcohol.2. The production method according to claim 1 , wherein an amount of moisture included in the microcapsule is less than 1% by mass with respect to a total of the sugar alcohol microcapsule.3. The production method according to claim 1 , wherein the material that reacts with the particles is at least one selected from the group consisting of a cyanoacrylate compound claim 1 , a cyanate compound claim 1 , an isocyanate compound claim 1 , and a carboxylic halide.4. The production method according to claim 1 , wherein the particles further include at least one selected from the group consisting of an amine compound and a water-soluble epoxy compound.5. The production method according to claim 1 , wherein an average particle diameter of the sugar alcohol microcapsule is 100 μm or less.6. The production method according to claim 1 , wherein the particles are dispersed in the oil phase using an ultrasonic homogenizer. This application is a divisional application of U.S. application Ser. No. 15/118,816 filed Aug. 12, 2016, which is a 371 of International Application No. PCT/JP2015/053835, filed Feb. 12, 2015, which claims priority to JP 2014-026456, filed Feb. 14, 2014, the contents of each of which are incorporated herein by reference.The present invention relates to a sugar alcohol microcapsule, a slurry comprising the sugar alcohol microcapsule, and a resin molded article obtained by using the sugar alcohol microcapsule.A latent heat storage material using absorption of heat and ...

Method for Preparing Microcapsules

There is provided a method for preparing surface modified microcapsules that increase fiber adhesion of fragrance capsules, have excellent fragrance durability even after use, and are environmentally friendly due to biodegradation of ester groups, by preparing a pickering emulsion using inorganic nanoparticles and acrylic monomers comprising biodegradable ester groups, and then, preparing capsules through the polymerization thereof, and modifying the surface of the capsules with amine-based monomers. 1. A method for preparing microcapsules comprising the steps of:step 1: adsorbing acrylic monomers having water solubility of 1 to 100 g/L on surface of inorganic nanoparticles;step 2: adding fragrance oil to the inorganic nanoparticles having the acrylic monomers adsorbed on the surface, thus forming an emulsion;step 3: polymerizing the emulsion from the step 2, thus forming a polymerization solution; andstep 4: adding amine-based monomers and an initiator to the polymerization solution from the step 3, thus progressing polymerization.2. The method for preparing microcapsules according to claim 1 , wherein the acrylic monomers have water solubility of 5 to 60 g/L.4. The method for preparing microcapsules according to claim 1 , wherein the acrylic monomers include one or more selected from the group consisting of dipropyleneglycol diacrylate claim 1 , diethyleneglycol diacrylate and tetraethyleneglycol dimethacrylate.6. The method for preparing microcapsules according to claim 1 , wherein the amine-based monomers are included in an amount of 0.2 to 5 parts by weight claim 1 , based on 100 parts by weight of the total polymerization solution from the step 3.7. The method for preparing microcapsules according to claim 1 , wherein the inorganic nanoparticles have an average particle diameter of 2 nm to 100 nm claim 1 , and are selected from the group consisting of silica claim 1 , titania claim 1 , metal oxide claim 1 , noble metal claim 1 , apatite claim 1 , and limestone ...

PROCESS FOR PRODUCING MICROCAPSULES

The application describes a process for the producing microcapsules which contain a shell made of polyurea obtained in the presence of polyvinyl alcohol copolymers. 1. A process for producing microcapsules which contain a shell and a core of a liquid water-insoluble material , comprising(a) preparing a premix (I) from water and a protective colloid;(b) preparing a further premix (II) from a water-insoluble liquid component and at least bifunctional isocyanate (A) or a mixture of two or more different isocyanates containing (A);(c) mixing the two premixes (I) and (II) together until an emulsion is formed; and(d) then pouring at least a bifunctional amine into the emulsion from step (c); and(e) then heating the emulsion up to at least 50° C. until the microcapsules are formed,characterized in that the protective colloid is a polyvinyl alcohol copolymer having hydrolysis degrees from 85 to 99.9%.2. The process as claimed in claim 1 , wherein the polyvinyl alcohol copolymer has hydrolysis degrees between 85 to 95%.3. The process as claimed in claim 1 , wherein the polyvinyl alcohol copolymer contains 0.1 to 30 mol % comonomers with anionic groups claim 1 , or0.1 to 30 mol % comonomers with cationic groups, or0.1 to 30 mol % comonomers with unsaturated hydrocarbons having 2 to 6 carbon atoms and non-charged functional groups as a monomer, especially two hydroxyl groups.4. The process as claimed in claim 1 , wherein the polyvinyl alcohol copolymer contains0.1 to 30 mol % comonomers with anionic groups or0.1 to 30 mol % comonomers with unsaturated hydrocarbons having 2 to 6 carbon atoms and two hydroxyl groups.5. The process as claimed in claim 1 , wherein the polyvinyl alcohol copolymer contains 0.1-30 mol % claim 1 , comonomers with sulfonic and/or carboxylate groups as anionic groups.6. The process as claimed in claim 1 , wherein the isocyanate (A) is selected from the group consisting of hexane 1 claim 1 ,6 diisocyanate claim 1 , hexane 1 claim 1 ,6 diisocyanate biuret ...

SUPERPARAMAGNETIC AND HIGHLY POUROUS POLYMER PARTICLES FOR DIAGNOSTIC APPLICATIONS

The present disclosure relates to magnetic particles, wherein each particle has a polymer matrix and at least one magnetic core (M), wherein the polymer matrix has at least one crosslinked polymer and wherein the magnetic particle has a particle size in the range of from 1 to 60 micrometer. Further, the present disclosure relates to a method of preparing such particles, and to particles obtainable or obtained by said method. Moreover, the present disclosure uses these magnetic particles for qualitative and/or quantitative determination of at least one analyte in a fluid. Further, the present disclosure relates to a method for determining at least one analyte in a fluid sample using the contacting of a magnetic particle of the disclosure or a magnetic particle obtained by the method of the present disclosure with a fluid sample having or suspected to have the at least one analyte. 1. Magnetic particle comprising a polymer matrix (P) and at least one magnetic core (M) , wherein the polymer matrix comprises a hypercrosslinked polymer and wherein the magnetic particle has a particle size in the range of from 5 to 40 micrometers , as determined according to ISO 13320;{'sub': 2', '2', '2', '2', '3', '3', '2', '5', '4', '9', '8', '17', '18', '37', '6', '5', '6', '9', '6, 'sup': '+', 'wherein the surface of the particle is functionalized with at least one group selected from the group consisting of —OH, —COOH, diethylaminoethanol, R—SO—OH, —NH, R—SO—OH, —RNH, —RN, —RN—CH, —CH, —CH, —CH, —CH, —CH, CHNOPhenyl-Hexyl, Bi-Phenyl, Hydroxyapatit, boronic acid, biotin, azide, epoxide, alkyl, aryl, cycloalkyl, heteroaryl, heterocycloalkyl, aminoacids, —COOR, —COR, —OR, antibodies and fragments thereof, aptameres, nucleic acids, and receptor proteins or binding domains thereof.'}2. The magnetic particle of claim 1 , wherein the polymer matrix comprises pores having a pore size smaller than 100 nm claim 1 , as determined according to ISO 15901-3.3. The magnetic particle of claim 2 , ...

Sugar alcohol microcapsule, slurry, and resin molded article

A sugar alcohol microcapsule obtained by mixing particles that include molten sugar alcohol and are dispersed in an oil phase with a material that reacts with the particles, and encapsulating the sugar alcohol.

ACRYLIC PROCESSING AID AND VINYL CHLORIDE RESIN COMPOSITION COMPRISING THE SAME

The present disclosure relates to an acrylic processing aid and a vinyl chloride resin composition including the same, and in particular, to a core-shell-structured acrylic processing aid preparing a core using a silicone-azo macroinitiator and preparing a shell using C12 to C18 alkyl methacrylate as a co-monomer, and a vinyl chloride resin composition including the same. 2. The acrylic processing aid of claim 1 , wherein the silicone-azo macroinitiator has a weight average molecular weight of 4 claim 1 ,000 g/mol to 80 claim 1 ,000 g/mol.3. The acrylic processing aid of claim 1 , wherein the core comprises the methyl methacrylate in 50% by weight to 90% by weight and the silicone-azo macroinitiator in 0.01% by weight to 20% by weight with respect to a sum of 100% by weight of the core monomers in the copolymerization.4. The acrylic processing aid of claim 1 , wherein the core further comprises a C2 to C18 alkyl acrylate monomer in 0% by weight to 30% by weight with respect to a sum of 100% by weight of the core monomers in the copolymerization.5. The acrylic processing aid of claim 4 , wherein the C2 to C18 alkyl acrylate monomer is one or more types selected from the group consisting of methyl acrylate claim 4 , ethyl acrylate claim 4 , propyl acrylate claim 4 , butyl acrylate claim 4 , and 2-ethylhexyl acrylate and stearyl acrylate.6. The acrylic processing aid of claim 1 , wherein claim 1 , in the shell claim 1 , 50% by weight to 80% by weight of the methyl methacrylate and 20% by weight to 50% by weight of the C12 to C18 alkyl methacrylate monomer are copolymerized with respect to a sum of 100% by weight of the shell monomers.7. The acrylic processing aid of claim 1 , wherein the C12 to C18 alkyl methacrylate monomer is one or more types selected from the group consisting of lauryl methacrylate claim 1 , cetyl methacrylate claim 1 , stearyl methacrylate claim 1 , isostearyl methacrylate and tridecyl methacrylate.8. The acrylic processing aid of claim 1 , ...

SELF-SUSPENDING PROPPANTS FOR HYDRAULIC FRACTURING

The invention provides for modified proppants, comprising a proppant particle and a hydrogel coating, wherein the hydrogel coating localizes on the surface of the proppant particle to produce the modified proppant, methods of manufacturing such proppants and methods of use. 1. A process for fracturing a subterranean geological formation comprising introducing into said formation a treatment fluid wherein the fluid comprises a hydraulic fracturing fluid and a suspended modified proppant having hydrophilic properties while suspended during transport , wherein the suspended modified proppant comprises a proppant substrate particle and a swollen hydrogel coating ,wherein the hydrogel coating is applied to a surface of the proppant substrate particle and localizes on the surface, andwherein the process further comprises degrading the hydrogel coating by chemical, thermal, mechanical, enzymatic or biological means after the suspended modified proppant has been introduced into the formation.2. The process of claim 1 , wherein degrading of the hydrogel coating is controlled by at least one of reaching a target temperature or amount of time in the fluid.3. The process of claim 2 , wherein degrading of the hydrogel coating is controlled so as to direct placement of the proppant substrate particle of the modified proppant to a desired location within the fracture.4. The process of claim 1 , wherein degrading of the hydrogel coating is controlled so as to direct placement of the proppant substrate particle of the modified proppant to a desired location within the fracture.5. The process of claim 4 , wherein degrading of the hydrogel coating is accomplished by means of a chemical breaker.6. The process of claim 1 , wherein the modified proppant has been formulated so that when 1 to 3 grams of the dried modified proppant is added to 100 ml of tap water in a 100 ml graduated cylinder and then inverted 8 times claim 1 , the modified proppant exhibits a settling time which is about ...

METHOD FOR PREPARING MICROCAPSULES BY DOUBLE EMULSION

The present invention relates to a method for preparing solid microcapsules, comprising the steps of: a) adding under agitation a composition C1 comprising at least one active material to a cross-linkable liquid composition C2, wherein the active material is an additive to be used in the oil industry, composition C1 and composition C2 being immiscible with each other, so that a first emulsion is obtained, said first emulsion comprising droplets of composition C1 dispersed in composition C2, b) adding under agitation the first emulsion obtained in step a) to a liquid composition C3, composition C3 and composition C2 being immiscible with each other, so that a second emulsion is obtained, said second emulsion comprising droplets dispersed in composition C3, c) loading the second emulsion obtained in step b) in a mixer which applies a homogeneous controlled shear rate to said second emulsion, said shear rate being from 1 000 sto 100 000 s, so that a third emulsion is obtained, said third emulsion comprising droplets dispersed in composition C3, and d) cross-linking the droplets obtained in step c), so that solid microcapsules dispersed in composition C3 are obtained. 120. Method for preparing solid microcapsules () , comprising the steps of: {'b': '1', 'wherein the active material is an additive to be used in the oil industry, composition C1 and composition C2 being immiscible with each other, so that a first emulsion is obtained, said first emulsion comprising droplets () of composition C1 dispersed in composition C2,'}, 'a) adding under agitation a composition C1 comprising at least one active material to a cross-linkable liquid composition C2,'} {'b': '5', 'composition C3 and composition C2 being immiscible with each other, so that a second emulsion is obtained, said second emulsion comprising droplets () dispersed in composition C3,'}, 'b) adding under agitation the first emulsion obtained in step a) to a liquid composition C3,'}{'sup': −1', '−1, 'claim-text': {'b ...

Nanocomposites Containing Crystalline Polyester and Organosilica

The invention provides a process for preparing core-shell composite particles comprising a polyester, polymerized ethylenically unsaturated silane compounds, and optionally a hydrophobic surface treatment. The invention further provides a composite particle comprising a polyester and a radically polymerized ethylenically unsaturated silane compound. 1. A process for preparing core-shell composite particles comprising:(i) providing a solution comprising one or more polyesters and up to 10 parts by mass per part of the total amount of polyester of a first ethylenically unsaturated silane compound having alkoxysilane groups in an organic solvent;(ii) adding sufficient base to the solution provided in step (i) to deprotonate acid groups on the polyester in solution;(iii) adding water to the solution obtained in step (ii) to form an emulsion;(iv) distilling at least a portion of the solvent and the base from the emulsion to bring the emulsion to a pH of from 5 to 7;(v) adding up to 30 parts by mass per part of the total amount of polyester of a second ethylenically unsaturated silane compound having alkoxysilane groups to the emulsion;(vi) radically polymerizing the ethylenically unsaturated silane compound to provide a dispersion of core-shell particles; and(vii) cross-linking the polymerized ethylenically unsaturated silane compound by hydrolyzing and condensing at least a portion of the alkoxysilane groups,wherein the core shell composite particles are produced with at least 0.1 total parts of ethylenically unsaturated silane compound having alkoxysilane groups per part total amount of polyester.2. The process of claim 1 , further comprising surface-treating the core shell particles with a hydrophobizing agent.3. (canceled)4. The process of claim 2 , wherein the hydrophobizing agent comprises a silane and/or a silazane and wherein cross-linking and hydrophobizing are performed simultaneously.5. The process of claim 1 , wherein the first and second ethylenically ...

Hydrogel Beads With Self-Regulating Microclimate pH Properties

A composition includes a hydrogel bead in an external matrix, the hydrogel bead having an at least partially crosslinked gelling polymer, the hydrogel bead having encapsulated therein a functional agent, and a buffering agent having low water solubility, wherein at least a portion of the buffering agent is in solid form in the hydrogel bead. 1. A composition comprising a hydrogel bead in an external matrix , the hydrogel bead comprising a functional agent, and', 'a buffering agent having low water solubility,', 'wherein at least a portion of the buffering agent is in solid form in the hydrogel bead., 'an at least partially crosslinked gelling polymer, the hydrogel bead having encapsulated therein'}2. The composition of claim 1 , wherein the external matrix comprises water claim 1 , air claim 1 , an organic solvent claim 1 , or an oil.3. The composition of claim 1 , wherein the pH in the hydrogel bead is higher or lower than the pH of the external matrix.4. The composition of claim 1 , wherein the gelling polymer comprises a polysaccharide claim 1 , a glycoprotein claim 1 , a glycopeptide claim 1 , a protein carbohydrate conjugate claim 1 , a protein lipid conjugate claim 1 , a carbohydrate-lipid conjugate claim 1 , a protein claim 1 , or a combination comprising at least one of the foregoing.5. The composition of claim 4 , wherein the gelling polymer comprises alginate claim 4 , carrageenan claim 4 , agar claim 4 , pectin claim 4 , xanthan gum claim 4 , chitosan claim 4 , whey protein claim 4 , caseinate claim 4 , soy protein claim 4 , pea protein claim 4 , legume protein claim 4 , gelatin claim 4 , lactoferrin claim 4 , or a combination comprising at least one of the foregoing.6. The composition of claim 1 , wherein the buffering agent having low water solubility comprises Ca(OH) claim 1 , CaCO claim 1 , Ca(PO) claim 1 , Mg(OH) claim 1 , MgCO claim 1 , Zn(OH) claim 1 , ZnCO claim 1 , Zn(PO) claim 1 , benzoic acid claim 1 , or a combination comprising at least one ...

FRIABLE SHELL MICROCAPSULES, PROCESS FOR PREPARING THE SAME AND METHOD OF USE THEREOF

The present application describes a microcapsule comprising: (i) a lipophilic core material, and (ii) a microcapsule shell, wherein microcapsule shell formed from oil-in-water emulsion polymerisation of monomer mixture consisting essentially of: (a) greater than 70 to about 99% by weight of at least one polyfunctional ethylenically unsaturated monomer, (b) about 1 to about 30% by weight of at least one unsaturated carboxylic acid monomer or its ester, and (c) about 0 to about 30% by weight of at least one vinyl monomer. Also provides process for preparing the same and its method of use in various applications. 2. The microcapsule according to claim 1 , wherein said lipophilic core material is selected from the group consisting of fragrances claim 1 , UV absorbers claim 1 , emollient oils claim 1 , insecticides claim 1 , dyes claim 1 , detergents claim 1 , printing inks claim 1 , perfumes claim 1 , silicone conditioners claim 1 , hair treatment/shampoo materials claim 1 , biocides claim 1 , adhesives claim 1 , corrosion inhibitors claim 1 , anti-fouling agents claim 1 , flavors claim 1 , cosmetic & personal care actives claim 1 , oxidizing agents claim 1 , pharmaceutical agents claim 1 , agrochemicals/pesticides claim 1 , lipids/fats claim 1 , food additive claim 1 , liquid crystals claim 1 , coating materials claim 1 , catalysts claim 1 , preservatives and/or antimicrobial agents claim 1 , lipophilic scale inhibitors claim 1 , chemical reactants claim 1 , rustproofing agents claim 1 , recording materials claim 1 , magnetic substances claim 1 , and combinations thereof.3. The microcapsule according to claim 1 , wherein the polyfunctional ethylenically unsaturated monomer (a) is selected from the group consisting of ethylene glycol di(meth)acrylate claim 1 , di(ethylene glycol) di(meth)acrylate claim 1 , triethylene glycol di(meth)acrylate claim 1 , propylene glycol di(meth)acrylate claim 1 , 1 claim 1 ,4-butanediol di(meth)acrylate claim 1 , 1 claim 1 ,6-hexanediol ...

METHODS, SYSTEMS, AND APPARATUS FOR ENCAPSULATING A SEQUESTRATION MEDIUM

An apparatus for encapsulating a material includes a first channel in fluid communication with a source of a material for encapsulation, at least one second channel in fluid communication with a source of a photopolymerizable compound, and at least one third channel in fluid communication with a source of an encapsulating fluid. Flow of the photopolymerizable compound into the first channel produces sheath flow in the first channel such that the material is within the polymerizable compound. Addition of the encapsulating fluid produces encapsulation precursors. Upon irradiation via a UV-radiation source, the photopolymerizable compound in the encapsulation precursor forms a polymer shell encapsulating the material for encapsulation. Materials such as nanoparticle organic hybrid materials (NOHMs) and a metal-organic frameworks (MOFs) can be thus encapsulated as carbon sequestration micro particles, as the polymer shell is permeable by gases such as carbon dioxide but selectively rejects other compounds such as water. 1. An apparatus for encapsulating a material comprising:a first channel in fluid communication with a source of a material for encapsulation;at least one second channel in fluid communication with a source of a photopolymerizable compound, the at least one second channel also in fluid communication with the first channel and positioned at an angle to the first channel so as to produce sheath flow in the first channel wherein the material is within the polymerizable compound;at least one third channel in fluid communication with a source of an encapsulating fluid, the at least one third channel also in fluid communication with the first channel and positioned downstream of the at least one second channel; anda UV-radiation source configured to irradiate the photopolymerizable compound to produce an encapsulated material.2. The apparatus according to claim 1 , wherein the material includes a carbon sequestration medium claim 1 , explosive compound claim 1 ...

FLOW PATH DEVICE AND DROPLET FORMING METHOD

A flow path device has at least one channel. The channel has a main channel which allows flow of a continuous phase liquid, and an auxiliary channel which is connected to a predetermined portion of the main channel. The flow path device has an inner wall surface which encloses the main channel. The main channel has a connecting port formed in the inner wall surface and communicated with the auxiliary channel, and the inner wall surface has an enlarged surface provided at a position on a downstream side of the connecting port, and the enlarged surface spreads to outside of the main channel so as to promote removal of the dispersed phase liquid from the inner wall surface, the dispersed phase liquid being adhered to the inner wall surface in consequence of flowing from the auxiliary channel into the main channel through the connecting port. 1. A flow path device comprising , internally , at least one channel allowing a continuous phase liquid and a dispersed phase liquid to flow so as to form a dispersed phase droplet in the continuous phase liquid , whereinthe channel has a main channel which allows flow of the continuous phase liquid, and an auxiliary channel which is connected to a predetermined portion of the main channel to guide the dispersed phase liquid to the main channel, the predetermined portion being a portion between both ends of the main channel,the flow path device has an inner wall surface which encloses the main channel to define the main channel,the main channel has a connecting port formed in the inner wall surface and communicated with the auxiliary channel, andthe inner wall surface has an enlarged surface provided at a position on a downstream side of the connecting port in the main channel, and the enlarged surface spreads to outside of the main channel so as to promote removal of the dispersed phase liquid from the inner wall surface, the dispersed phase liquid being adhered to the inner wall surface in consequence of flowing from the ...

LOW DENSITY POLYVINYL CHLORIDE MICROPARTICLES

Hollow microparticles of polyvinyl chloride are disclosed, having low volumetric densities useful for reducing mass per unit volume of polymer or inorganic articles and apparatus having such microparticles compounded into thermoplastic or thermoset polymers. A double emulsion polymerization process is also disclosed as the process to produce the hollow microparticles. 1. A composition of matter comprising hollow polymer microparticles with a Dn average particle size in their largest dimension ranging from about 15 to about 200 micrometers comprising polyvinyl chloride and having a volumetric density of less than about 0.6 g/cm.2. The polymer microparticles of claim 1 , wherein polymer is formed from ingredients comprising:(a) from about 90 to about 100 parts per hundred monomer (PHR) of vinyl chloride monomer;(b) from about 0.05 to about 0.2 PHR of an initiator;(c) from about 1.0 to about 2.0 PHR of one or more lipophilic surfactants;(d) from about 0 to about 0.07 PHR of sodium hydroxide;(e) from about 10 to about 20 PHR of water;(f) from about 1.7 to about 3.2 PHR of one or more hydrophilic surfactants; and(g) from about 2 to about 10 PHR of a crosslinker.3. The polymer microparticles of claim 1 , wherein the microparticles are formed from ingredients comprising:(a) from about 90 to about 100 parts per hundred monomer (PHR) of vinyl chloride monomer;(b) from about 0.05 to about 0.2 PHR of peroxide initiator;(c) from about 0.4 to about 0.5 PHR of epoxidized oil lipophilic surfactant;(d) from about 0.9 to about 1.1 PHR of adipate lipophilic surfactant;(e) from about 10 to about 20 PHR of water;(f) from about 1.7 to about 3.2 PHR of polyvinyl alcohol hydrophilic surfactant(s); and(g) from about 2 to about 10 PHR of crosslinker.4. The polymer microparticles of claim 3 , wherein the ingredients (a)-(e) and optionally ingredient (g) form an intermediate water-in-oil emulsion of ingredient (e) dispersed in a continuous phase of ingredients (a)-(d) and optionally ...

DIALCOHOL CELLULOSE-BASED SPHERICAL CAPSULES

The present disclosure relates to spherical capsules comprising a polymeric shell surrounding a hollow core, in which the polymeric shell comprises an dialcohol cellulose that is optionally substituted. The present disclosure also relates to a process for preparing such spherical capsules, comprising mixing a solution comprising dissolved dialcohol cellulose that is optionally substituted and one or more non-polar organic compounds with an antisolvent, wherein the antisolvent comprises or consists of one or more compounds, and has a polarity less than that of water. 1. Spherical capsules comprising a polymeric shell surrounding a hollow core , in which the polymeric shell comprises a dialcohol cellulose that is optionally substituted.3. Spherical capsules as claimed in claim 1 , which are expandable by heating and/or by reducing the external pressure.6. A process as claimed in claim 4 , in which the solution comprising the dialcohol cellulose that is optionally substituted is added to the antisolvent.7. A process as claimed in claim 4 , in which the spherical capsules are expandable.8. A process as claimed in claim 7 , in which the spherical capsules are expanded by heating to above the glass transition temperature and below the melting temperature of the dialcohol cellulose that is optionally substituted; and/or by reducing the external pressure by 10% or more.9. Spherical capsules as claimed in claim 1 , in which the polymeric shell comprises unsubstituted dialcohol cellulose.10. Spherical capsules as claimed in claim 2 , in which the polymeric shell comprises dialcohol cellulose substituted with one or more substituents according to Formula (1).11. Spherical capsules as claimed in claim 2 , in which the polymeric shell comprises dialcohol cellulose substituted with one or more substituents according to Formula (2).12. Spherical capsules as claimed in claim 2 , in which the polymeric shell comprises dialcohol cellulose substituted with one or more substituents ...

AMINE MODIFIED POLYSACCHARIDE URETHANE/UREA MICROCAPSULES

Core shell microcapsules are provided wherein the capsule shell is an interfacial copolymer formed of an amine modified polysaccharide cross-linked with an isocyanate. 1. A microcapsule comprising a core material and a shell encapsulating the core material wherein the shell comprises the reaction product of a) an amine modified polysaccharide and b) an isocyanate component comprising one or more di- and/or poly-isocyanates wherein i) the amine modified polysaccharide is characterized as having from 0.005 up to 8 mole percent of the hydroxy groups substituted with a moiety having a free or reactive amino group , provided that , in the case wherein the amine modified polysaccharide is a maltodextrin , the amine modified polysaccharide has at least 1 amino functional group per molecule , and ii) the weight ratio of the polysaccharide to isocyanate is from 40:60 to 99:1.2. The microcapsule of wherein the amine modified polysaccharide is characterized as having from 0.01 up to 6 mole percent of the hydroxy groups substituted with a moiety having a free or reactive amino.3. The microcapsule of wherein the amine modified polysaccharide is characterized as having from 0.05 up to 4 mole percent of the hydroxy groups substituted with a moiety having a free or reactive amino group.4. The microcapsule of wherein the amine modified polysaccharide is or includes a maltodextrin having at least 4 amino functional groups per molecule5. The microcapsule of wherein the amine modified polysaccharide is or includes a hydrophobically modified polysaccharide.6. The microcapsule of wherein the hydrophobically modified polysaccharide is an esterified starch.7. The microcapsule of wherein the free or reactive amino group of the polysaccharide is a primary amine claim 1 , a secondary amine claim 1 , an amide and/or an amidine group.8. The microcapsule of wherein at least 50 mole percent of the isocyanates are di-isocyanates.9. The microcapsule of wherein at least 75 more percent of the ...

Systems and methods for affecting interactions of electromagnetic radiation with janus droplets for sensitive detection of species

Embodiments described herein may be useful in the detection of analytes. The systems and methods may allow for a relatively simple and rapid way for detecting analytes such as chemical and/or biological analytes and may be useful in numerous applications including sensing, food manufacturing, medical diagnostics, performance materials, dynamic lenses, water monitoring, environmental monitoring, detection of proteins, detection of DNA, among other applications. For example, the systems and methods described herein may be used for determining the presence of a contaminant such as bacteria (e.g., detecting pathogenic bacteria in food and water samples which helps to prevent widespread infection, illness, and even death). Advantageously, the systems and methods described herein may not have the drawbacks in current detection technologies including, for example, relatively high costs, long enrichment steps and analysis times, and/or the need for extensive user training. Another advantageous feature provided by the systems and methods described herein includes fabrication in a relatively large scale. In some embodiments, the systems and methods may be used in conjunction with a detector including handheld detectors incorporated with, for example, smartphones (e.g., for the on-site detection of analytes such as pathogenic bacteria).

COMPOSITE SHELL PARTICLE, BIOLOGICAL MATERIAL, AND METHOD OF MANUFACTURING COMPOSITE SHELL PARTICLE

A composite shell particle including a composite shell layer is provided. The composite shell layer is a hollow shell, wherein the composite shell layer includes a porous biological layer and a metallic layer. The porous biological layer is composed of an organic substance including a cell wall or a cell membrane of a bacteria or algae. The metallic layer is crosslinked with the porous biological layer to form the composite shell layer. The metallic layer includes at least one metal selected from the group consisting of iron, molybdenum, tungsten, manganese, zirconium, cobalt, nickel, copper, zinc, and calcium, and/or includes at least one selected form the group consisting of metal chelates, metal oxides, metal sulfides, metal chlorides, metal selenides, metal acid salt compounds, and metal carbonate compounds. A method of manufacturing the composite shell particle, and a biological material including the composite shell particle and the applications thereof are also provided. 1. A method of manufacturing a composite shell particle , comprising:co-culturing bacteria or algae cells together with a culture medium comprising a carbon source and a metal raw material for a period of time, and the metal raw material in the culture medium is subjected to a redox reaction induced by the bacteria or algae cells to produce a wet powder material containing composite shell particles, wherein the metal raw material is composed of a metal compound, and a metal in the metal compound is at least one selected from a group consisting of iron, molybdenum, tungsten, manganese, zirconium, cobalt, nickel, copper, zinc, and calcium, and the metal compound is at least one selected from a group consisting of metal chelates, metal oxides, metal sulfides, metal chlorides, metal selenides, metal acid salt compounds, and metal carbonate compounds;separating the wet powder material from the culture medium;drying the wet powder material to obtain a powder material, wherein the powder material ...

Process for synthesizing hybrid core-shell microparticles comprising a polymer core and a silicon dioxide shell with controlled structure and surface

Hybrid microparticle having a polymer core and a shell which surrounds the polymer core at least in sections and which has a silicon dioxide layer; characterized by an RF value, the RF value being defined as the ratio of an external surface area amenable to the adsorption of nitrogen to a surface area which is computable from an arithmetic mean diameter of the hybrid microparticle considered as an ideal sphere, where the shell has a structure selected from: closed and smooth, with the shell having an RF value of between 1 and 1.5; closed and hillocky, with the shell having an RF value of between 1.51 and 3; or open, with the shell having an RF value of greater than 3.01.

RENEWABLE SELF-HEALING CAPSULE SYSTEM

A renewable material for releasing a self-healing agent includes a renewable polymeric substrate with capsules and a reactant dispersed in the renewable polymeric substrate. The capsules may be formed from a first renewable shell polymer and may enclose the renewable self-healing agent. The reactant may be suitable for reacting with the renewable self-healing agent to form a polymer. 1. A renewable self-healing material , comprising:a renewable polymeric substrate;capsules formed from a first renewable shell polymer, wherein the capsules are dispersed in the renewable polymeric substrate;a renewable self-healing agent enclosed in the capsules;a reactant dispersed in the renewable polymeric substrate, wherein the reactant is suitable for reacting with the renewable self-healing agent to form a polymer.2. The material of claim 1 , wherein the renewable polymeric substrate is from the group consisting of sugars claim 1 , vegetable oils claim 1 , lignin claim 1 , cellulose claim 1 , suberin claim 1 , citric acid claim 1 , and tartaric acid.3. The material of claim 1 , wherein the first renewable shell polymer is from the group consisting of collagen claim 1 , starch claim 1 , gum arabic claim 1 , gelatin claim 1 , dextrin claim 1 , cellulose claim 1 , and casein.4. The material of claim 1 , wherein the reactant is an amine or a Lewis acid.5. The material of claim 1 , wherein the capsules are further formed from a cross-linking agent.6. The material of claim 1 , wherein the renewable self-healing agent is a functionalized triglyceride vegetable oil having a functional group claim 1 , wherein:the functionalized triglyceride vegetable oil is from the group consisting of soybean oil, corn oil, and linseed oil; andthe functional group is from the group consisting of epoxy, acrylate, and hydroxyl.7. The material of claim 6 , wherein the renewable self-healing agent is epoxidized soybean oil and the reactant is an amine.8. The material of claim 1 , wherein the capsules are ...

METHOD AND APPARATUS FOR FABRICATING CAPSULE

Provided is a method of fabricating capsules. The method includes: forming droplets of a dispersed phase solution including a phase transition material, a carbon nanomaterial, and a first monomer by allowing the dispersed phase solution to pass through nozzle units provided at a porous membrane in a reaction tank including the porous membrane; migrating the droplets into a mobile phase material including a second monomer; and forming polymer shells at interfaces between the droplets and the mobile phase material by polymerization between the first monomer and the second monomer. 1. A method of fabricating capsules , the method comprising:forming droplets of a dispersed phase solution comprising a phase transition material, a carbon nanomaterial, and a first monomer by allowing the dispersed phase solution to pass through nozzle units provided at a porous membrane in a reaction tank comprising the porous membrane;migrating the droplets into a mobile phase material comprising a second monomer; andforming polymer shells respectively at interfaces between the droplets and the mobile phase material by polymerization between the first monomer and the second monomer.2. The method of claim 1 , wherein the first monomer comprises an organic compound or phosgene having at least one functional group selected from the group consisting of an isocyanate group claim 1 , a carboxyl group claim 1 , and a cyano group.3. The method of claim 1 , wherein the second monomer is a compound having an amine group or a hydroxyl group.4. The method of claim 1 , wherein the carbon nanomaterial is selected from the group consisting of graphite claim 1 , graphene claim 1 , carbon fiber claim 1 , and carbon nanotube (CNT).5. The method of claim 1 , wherein the forming of droplets is performed by allowing the dispersed phase solution to pass through the nozzle units at a flow rate of 0.1 ml to 20 ml.6. The method of claim 1 , wherein the polymerization is performed as a continuous process in a ...

Benefit delivery particle and composition comprising the particle

Disclosed is a benefit agent delivery particle comprising a benefit agent; and a chitosan salt at the outer surface of the particle, wherein the chitosan salt comprises a chitosan component and amino acid anion, wherein the amino acid comprises phenylalamine; the amino acid does not comprises tyrosine; and the amino acid does not comprises histidine or the amino acid comprises no greater than 20% of histidine by mole of the total amino acid, wherein the benefit agent comprises fragrance, pro-fragrance, hair conditioning agent, anti-dandruff agent, moisturizers, emollients, dyes, pigments, colour care additives, or a mixture thereof. 2. The particle according to wherein the chitosan component of the salt has a viscosity average molecular weight of at least 10 claim 1 ,000.3. The particle according to wherein the amino acid comprises glutamine claim 1 , glutamic acid claim 1 , histidine claim 1 , leucine claim 1 , lysine claim 1 , serine claim 1 , threonine claim 1 , or a mixture thereof.4. The particle according to wherein the amino acid is phenylalanine.5. The particle according to wherein the benefit agent is a fragrance.6. The particle according to any wherein the particle comprises water insoluble non-polysaccharide polymer claim 1 , water insoluble inorganic salt or a mixture thereof.7. The particle according to wherein the particle comprises polystyrene claim 6 , polyvinyl alcohol claim 6 , polyacrylate claim 6 , polymethacrylates claim 6 , polyolefins claim 6 , aminoplast polymer claim 6 , polyacrylamide claim 6 , acrylate-acrylamide copolymer claim 6 , melamine-formaldehyde condensate claim 6 , urea-formaldehyde condensate claim 6 , polyurethane claim 6 , polysaccaharide or a mixture thereof.8. The particle according to wherein the particle has an average particle size of 0.5 to 20 μm.9. (canceled)10. The particle according to wherein at least 50% of the outer shell by weight is the chitosan salt.11. A composition comprising:{'claim-ref': {'@idref': 'CLM- ...

FLUIDIC SYSTEM FOR HIGH THROUGHPUT PREPARATION OF MICROPARTICLES AND NANOPARTICLES

A fiber fluidic system may be used to produce particles (e.g., NPs and/or microparticles). The fiber fluidic system may include a cylinder with a plurality of elongated fibers oriented along a length of the cylinder. The cylinder may have a first opening at or near a first end of the cylinder and a second opening downstream of the first opening. A constrained phase fluid may be provided through the first opening and a free phase fluid may be provided through the second opening to produce particles (e.g., NPs and/or microparticles) through a second end of the cylinder. The fiber fluidic system may be used to continuously produce the particles at high throughput. 1. A system for forming particles , comprising:a fiber fluidic system comprising a cylinder with a plurality of elongated fibers oriented along a length of the cylinder;wherein the cylinder comprises a first opening and a second opening at or near a first end of the cylinder; andwherein a constrained phase fluid is provided through the first opening and a free phase fluid is provided through the second opening during use to produce particles through a second end of the cylinder, wherein the particles range in size between about 1 nm and about 100 μm.2. The system of claim 1 , wherein the particles comprise monodispersed particles.3. The system of claim 1 , wherein the particles range in size between about 5 nm and about 2.5 μm.4. The system of claim 1 , wherein the constrained phase fluid comprises an aqueous solution and the free phase fluid comprises a precursor solution.5. The system of claim 4 , wherein the precursor solution comprises polymer or monomer molecules in a free phase solution.6. The system of claim 1 , wherein the constrained phase fluid comprises a precursor solution and the free phase fluid comprises an aqueous solution.7. The system of claim 6 , wherein the precursor solution comprises polymer or monomer molecules in a constrained phase solution.8. The system of claim 1 , wherein the ...

SELF-HEALING MATERIAL AND PREPARATION PROCESS THEREOF

The present application provides a self-healing material which comprises silica sol as self-healing agent encapsulated by a polymeric shell. The self-healing material may be further embedded in a concrete mixture to heal micro-cracks in concrete. A method for preparing the self-healing material is also provided. 1. A process for preparing a composite material comprising:emulsifying a colloidal silica core in presence of a solvent and a mixture of at least two surfactants at an emulsifying speed within a range of 400-600 rpm, wherein the mixture of at least two surfactants is having a hydrophile-lipophile balance (HLB) within a range of 3.0-5.0; andencapsulating the emulsified colloidal silica core with a polymer shell to form a plurality of microcapsules.2. The process of claim 1 , wherein the weight percentage of silicon dioxide in the colloidal silica ranges from about 40% to about 50%.3. The process of claim 1 , wherein the surfactants are selected from the group consisting of poly(ethylene glycol)-400 dioleate claim 1 , poly(ethylene glycol)-8 dioleate claim 1 , sorbitan laurate claim 1 , poly(ethylene glycol)-40 sorbitan peroleate claim 1 , lecithin glycol distearate claim 1 , sorbitan trioleate and propylene glycol isostearate.4. The process of claim 1 , wherein the surfactants comprise one selected from the group consisting of poly(ethylene glycol)-8 dioleate claim 1 , sorbitan laurate claim 1 , poly(ethylene glycol)-40 sorbitan peroleate and lecithin claim 1 , and another selected from the group consisting of glycol distearate claim 1 , sorbitan trioleate and propylene glycol isostearate.5. The process of claim 1 , wherein the surfactants comprise poly(ethylene glycol)-400 dioleate and sorbitan trioleate.6. The process of claim 1 , wherein the polymeric shell comprises at least one selected from the group consisting of polyurethane claim 1 , polyurea claim 1 , poly(urea-urethane) claim 1 , polystyrene claim 1 , and urea-formaldehyde polymer.7. The process of ...

COMPOSITES, METHODS OF MANUFACTURE THEREOF, AND ARTICLES CONTAINING THE COMPOSITES

A composite includes a polymer; and a phase-change composition including an unencapsulated first phase-change material, and an encapsulated second phase-change material. 1. A composite , comprising:5 weight percent to 50 weight percent of a polymer; and an unencapsulated first phase-change material, and', 'an encapsulated second phase-change material,, '50 weight percent to 95 weight percent of a phase-change composition comprising'}wherein weight percents are based on the total weight of the composite.2. The composite of claim 1 , whereinthe polymer is an elastomeric block copolymer, an elastomeric grafted copolymer, an elastomeric random copolymer, styrene-butadiene block copolymer, polybutadiene, ethylene propylene diene terpolymer, natural rubber, polyethylene oxide, polyethylene, or a combination comprising at least one of the foregoing.3. The composite of claim 1 , wherein the phase-change composition has a melting temperature of 5° C. to 70° C.4. The composite of claim 1 , wherein the first phase-change material and the second phase-change material are different.5. The composite of claim 1 , wherein the first phase-change material has a first transition temperature and the second phase-change material has a second transition temperature claim 1 , the first transition temperature and the second transition temperature being identical or different.6. The composite of claim 1 , whereinthe first phase-change material comprises a C10-C35 alkane.7. The composite of claim 1 , whereinthe second phase-change material comprises a C10-C35 alkane.8. The composite of claim 1 , wherein the encapsulated second phase-change material has a mean particle size less than 50 micrometers.9. The composite of claim 1 , comprising claim 1 , based on the total weight of the composite claim 1 ,5 weight percent to 20 weight percent, of the polymer; and80 weight percent to 95 weight percent, of the phase-change composition.10. The composite of claim 1 , comprising claim 1 , based on the ...

Multiple emulsions and techniques for the formation of multiple emulsions

Multiple emulsions and techniques for the formation of multiple emulsions are generally described. A multiple emulsion, as used herein, describes larger droplets that contain one or more smaller droplets therein. In some embodiments, the larger droplet or droplets may be suspended in a carrying fluid containing the larger droplets that, in turn, contain the smaller droplets. As described below, multiple emulsions can be formed in one step in certain embodiments, with generally precise repeatability, and can be tailored in some embodiments to include a relatively thin layer of fluid separating two other fluids.

METHOD FOR PRODUCING MICROCAPSULES

The invention relates to a method for producing microcapsules, comprising the following steps: (a) providing a first aqueous preparation. containing at least 0110 prepolymer; (b) providing a second non-aqueous preparation containing the active substance to be encapsulated, (c) mixing the aqueous and the non-aqueous phases in the presence of at least one emulsifier and/or stabilizer in order to form an emulsion; (d) polymerizing the at least one prepolymer contained in the emulsion from step (c) in order to obtain a dispersion of microcapsules that enclose the active substance; (e) hardening and cross-linking the microcapsules obtained in step (dl; and optionally (f) removing the microcapsules from the dispersion and drying the microcapsules, the method being characterized in that the emulsion is formed in the presence of at least one 1,2-diol in step (c). 1. A process for producing microcapsules , comprising the following steps:(a) providing a first, aqueous formulation comprising at least one prepolymer;(b) providing a second, nonaqueous formulation comprising an active to be encapsulated;(c) mixing the aqueous phase and the nonaqueous phase in the presence of at least one emulsifier and/or stabilizer to form an emulsion;(d) polymerizing the at least one prepolymer present in the emulsion from step (c) to obtain a dispersion of microcapsules enclosing the active;(e) hardening and crosslinking the microcapsules obtained in step (d), and optionally(f) removing and drying the microcapsules from the dispersion, wherein the emulsion is formed in step (c) in the presence of at least one 1,2-dial.2. The process as claimed in claim 1 , wherein tbesigpolymer is selected from the group consisting of optionally alkyiated mono- and polymethylolurea or mono- and polymethylolmelamine precondensates claim 1 , partially methylated mono- and polymethyloI-1 claim 1 ,3 claim 1 ,5-triamino-2 claim 1 ,4 claim 1 ,6-triazine precondensates claim 1 , mono- and polyalkylolbenzoguanamine ...

Solid aggregates of microparticles, system and method for producing such aggregates

The present invention lies within the field of colloidal assemblies and relates to a system for producing solid clusters of microparticles, characterized in that it comprises at least: 112. A system for producing solid clusters () of at least two ellipsoidal microparticles () , wherein said system comprises at least: [{'b': 6', '15', '16', '15', '18', '16', '8, 'sub': '1', 'an element for producing primary droplets (), comprising a plurality of fluidic channels of height h, at least one dispersed liquid phase () and one continuous liquid phase () contained in said fluidic channels, each said dispersed phase () comprising monomers () selected from at least monomers soluble in said continuous phase (), the fluidic channels being arranged so as to form at least one junction selected from a T-junction and an X-junction () so that at the junction, primary droplets of each dispersed liquid phase are formed in the continuous phase; and'}, {'b': 9', '1', '19, 'sub': '2', 'a main channel () for forming solid clusters (), having a main axis (), of height h;'}], 'a fluidic device comprising at least{'b': 6', '12', '9', '10', '6', '9, 'sub': 1', '2, 'said element for producing primary droplets () being connected by said outlet () to said inlet of said main channel (), hbeing strictly less than hso as to form a step () between said element for producing primary droplets () and said main channel (), the passage of each primary droplet over the step causing said primary droplet to separate into a plurality of secondary droplets;'}{'b': 11', '9, 'a system of physical initiation of polymerization () capable of initiating the polymerization of the secondary droplets in said main channel (), the polymerized secondary droplets forming solid clusters.'}27919. The system according to comprising at least two second channels () claim 1 , called flow control channels claim 1 , connected to said main channel () claim 1 , and arranged symmetrically with respect to said main axis ().311. The ...

PROCESS FOR PREPARING PHASE CHANGE MICROCAPSULE HAVING THERMALLY CONDUCTIVE SHELL

A process for preparing a phase change microcapsule having a thermally conductive shell is introduced. The thermal conductivity of the encapsulation materials for the phase change microcapsules is increased by adding thermally conductive nano-materials. The vinylsilane compound is polymerized with the acrylic monomer to form the copolymer first, and then the thermally conductive inorganic material is added. Thereafter, the phase change microcapsule having the phase change material as the core and the thermally conductive material-containing copolymer as the shell is prepared. The polar functional groups on the surface of the thermally conductive inorganic material condense with the vinylsilane compound to form chemical bonding, thereby substantially increasing the compatibility between the thermally conductive inorganic material and the copolymer. Therefore, the thermally conductive material can be dispersed stably during the encapsulation of the microcapsules, and the phase change microcapsule having the thermally conductive shell can be obtained successfully. 1. A process for preparing a phase change microcapsule having a thermally conductive shell , comprising the steps of:(A) providing a vinylsilane compound;(B) adding to the vinylsilane compound an acrylic monomer and a trace amount of initiator-benzoyl peroxide, which are stirred and heated in a oil bath to carry out a prepolymerization reaction and form a first solution;(C) adding a phase change material to a polyvinyl alcohol solution, which is then heated up to a temperature above the melting point of the phase change material to perform liquefaction and stirred uniformly, thereby forming a second solution;(D) adding the second solution to the first solution and stirring uniformly; and(E) adding ethylene glycol dimethacrylate and inorganic nano-powder and then adding the initiator-benzoyl peroxide to carry out the polymerization encapsulation of the microcapsule by being heated in a stirred oil bath and ...

Granules

Plurality of granules comprising a ceramic core having an outer surface and a shell on and surrounding the core, wherein the shell comprises at least first concentric layers, wherein the first layer comprises first ceramic particles bound together with a first inorganic binder, wherein the first inorganic binder comprises reaction product of at least alkali silicate and hardener, wherein the shell of each granule collectively has a volume of at least 40 volume percent, based on the total volume of the respective granule, and wherein the granules have a minimum Total Solar Reflectance of at least 0.7. The granules are useful, for example, as roofing granules. 1. A plurality of granules comprising a ceramic core having an outer surface and a shell on and surrounding the core , wherein the shell comprises at least first and second concentric layers , wherein the first layer is closer to the core than the second layer , wherein the first layer comprises first ceramic particles bound together with a first inorganic binder , wherein the first inorganic binder comprises reaction product of at least alkali silicate and hardener , wherein the second layer comprises a second inorganic binder and optionally second ceramic particles , wherein if present the second ceramic particles are bound together with the second inorganic binder , wherein the second inorganic binder comprises reaction product of at least alkali silicate and hardener , wherein for a given granule , the first ceramic particles are present in a first weight percent with respect to the total weight of the first layer and the second ceramic particles are present in the second layer of the same granule in a second weight percent with respect to the total weight of the second layer , wherein for a given granule , the first weight percent is greater than the second weight percent , wherein the shell of each granule collectively has a volume of at least 40 volume percent , based on the total volume of the respective ...

MICROCAPSULES AND PROCESS FOR PREPARATION OF MICROCAPSULES

The present invention relates to microcapsules comprising at least one polyethervinyl ester graftpolymer, at least one acrylic polymer, and water in the range of from 0.1% of weight to 0% of weight of the total polymer as well as to processes preparing the same. 1. Microcapsule comprising(a) at least one polyether vinyl ester graft polymer,(b) at least one acrylic polymer, and(c) water in the range of from 0.1% of weight to 100% of weight of the total polymer.2. Microcapsule according to claim 1 , wherein the acrylic polymer comprises at least one monomer selected from the group consisting of Cto C-alkyl esters of acrylic acid claim 1 , Cto C-glycidyl esters of acrylic acid claim 1 , Cto C-alkyl esters of methacrylic acid claim 1 , Cto C-glycidyl esters of methacrylic acid claim 1 , acrylic acid esters with hydroxylic groups claim 1 , acrylic acid esters with carboxylic groups claim 1 , methacrylic acid esters with hydroxylic groups claim 1 , methacrylic acid esters with carboxylic groups claim 1 , and acrylates having two or more acrylic groups in the molecule.3. Microcapsule according to claim 1 , wherein a core of the microcapsule comprises at least one polyether vinyl ester graft polymer and a shell is at least partially comprise of at least one acrylic polymer.4. Microcapsule according to claim 1 , wherein the microcapsule comprises at least one enzyme.5. Aqueous dispersion of microcapsules according to claim 4 , wherein the microcapsules comprise an enzyme selected from the group consisting of oxireductases claim 4 , transferases claim 4 , hydrolases claim 4 , lyases claim 4 , isomerases claim 4 , and ligases.6. Aqueous dispersion according to wherein the shell of the microcapsule is an acrylic polymer that is insoluble in water in pH range of from 1 to 12 in time interval of 1 hour.7. Process for the preparation of microcapsules comprising the steps (i) component (a1) comprising a component A consisting of at least one polyether vinyl ester graft polymer;', ' ...

PROCESS FOR PREPARATION OF MICROCAPSULES

A process for the preparation of microcapsules including 1. A process for the preparation of microcapsules comprising (i) component (a1) comprising a component A selected from the group of polymers consisting of polyethylene glycol vinyl acetate comb polymers, polycarboxylates, polyethers, polyaspartates, polyvinylpyrrolidone, polyamines, and polylysine;', 'wherein component (a1) is a monophasic system at 23° C., and forms a monophasic system at 23° C. if mixed with water in the range of from 1:99 to 99:1 by weight, and', '(ii) component (a2) containing water and a water-soluble component B, wherein water-soluble component B is different from component A, and wherein (a2) is a monophasic system at 23° C.,', '(iii) at least one monomer (a3), and', '(iv) optionally at least one initiator (a4),', 'wherein (a1), (a2), (a3), and (a4) are mixed together in any order or simultaneously, followed by, '(a) preparation of an aqueous biphasic system by mixing'}(b) optionally shearing of the biphasic system to form an emulsion, and(c) polymerizing monomer (a3).2. The process according to wherein a solids content of component A in component (a1) is in the range of from 0.1 to 70% by weight.3. The process according to wherein component B is a water-soluble salt selected from the formula KN claim 1 , with the cation K selected from the group consisting of ammonium claim 1 , potassium claim 1 , sodium claim 1 , magnesium claim 1 , and calcium claim 1 , and the anion N selected from the group consisting of sulfate claim 1 , fluoride claim 1 , chloride claim 1 , bromide claim 1 , iodide claim 1 , phosphate claim 1 , acetate claim 1 , nitrate claim 1 , and methanesulfonate claim 1 , with a and b representing the absolute value of the charge of each ion as a natural number and the stoichiometric number for each ion in the salt.4. The process according to wherein component (a2) comprises at least 5% by weight of a water-soluble salt.5. The process according to wherein the component B is ...

Microcapsules

A novel aqueous dispersion including a plurality of microcapsules and which contains high fragrance loadings. The dispersion is suitable for inclusion into non-edible consumer goods products, laundry products, personal care products and cosmetic products. The dispersion can be obtained in an economic and efficient manner by polymerizing an emulsion so that emulsion droplets are finally encapsulated into polymeric shells.

COLOR ELECTROPHORETIC LAYER INCLUDING MICROCAPSULES WITH NONIONIC POLYMERIC WALLS

A capsule comprising a capsule wall and an electrophoretic fluid encapsulated by the capsule wall. The capsule wall comprises a cross-linked nonionic, water-soluble or water-dispersible polymer. The electrophoretic fluid comprises a suspending fluid, first pigment particles, second pigment particles, and third pigment particles. In some embodiments, the electrophoretic fluid includes a fourth electrophoretic particle. The first, second, and third particles are electrically charged, suspended in the suspending fluid, and capable of moving through the suspending fluid upon application of an electric field to the capsule. 1. A capsule comprising a capsule wall and an electrophoretic fluid encapsulated by the capsule wall , in which:the capsule wall comprises a nonionic polymer that is water-soluble or water-dispersible and cross-linked; andthe electrophoretic fluid comprises a suspending solvent, first pigment particles, second pigment particles, and third pigment particles, wherein the first, second, and third particles are differently colored, electrically charged, suspended in the suspending fluid, and capable of moving through the suspending fluid upon application of an electric field to the capsule.2. The capsule according to claim 1 , wherein the nonionic polymer is a polyol.3. The capsule according to claim 2 , wherein the polyol is polyvinyl alcohol.4. The capsule according to claim 1 , wherein the capsule wall comprises a cured coacervation layer formed from the nonionic polymer and a polyvinyl lactam.5. The capsule according to claim 4 , wherein the polyvinyl lactam is polyvinylpyrrolidone.6. The capsule according to claim 1 , wherein the capsule wall is cross-linked by reaction with a dialdehyde.7. The capsule according to claim 6 , wherein the dialdehyde is glutaraldehyde.8. The capsule according to claim 1 , wherein the suspending solvent comprises a hydrocarbon.9. The capsule according to claim 1 , wherein the electrophoretic fluid further comprises a ...

THERMALLY CONDUCTING CAPSULES COMPRISING A PHASE CHANGE MATERIAL

The invention relates to a thermally conducting capsule which has a core-shell structure and in which the core, which is surrounded by a tight single-layer or multilayer shell, is loaded with at least one phase change material (PCM). The invention is characterized in that the capsule also contains particles made of an additional conducting material at least in the shell, said particles made of the additional conducting material having a thermal conductivity greater than 100 W/m/K. The invention further relates to the use of said capsule in a heat-conducting material, in particular a thermal fluid, in order to modulate the heat capacity thereof. 1. A thermally conducting capsule having a core/shell structure , the core of which , surrounded by a leaktight and mono- or multilayer shell , is charged with at least one phase change material (PCM) , wherein said capsule additionally comprises , at least in its shell , particles of at least one ancillary conducting material , said particles of said ancillary conducting material having a thermal conductivity of greater than 100 W/m/K , said ancillary conducting material comprising at least boron nitride particles.2. The capsule as claimed in claim 1 , wherein the thermal conductivity of said ancillary conducting material is at least 10 times greater than the thermal conductivity of said PCM.3. The capsule as claimed in claim 1 , wherein all or part of said particles of ancillary conducting material are in the form of sheets.4. The capsule as claimed in claim 1 , wherein said ancillary conducting material is composed of boron nitride particles.5. The capsule as claimed in claim 1 , wherein it additionally comprises claim 1 , as ancillary conducting material claim 1 , a material chosen from graphene claim 1 , graphite and their mixtures.6. The capsule as claimed in claim 1 , wherein said boron nitride particles are particles of hexagonal boron nitride.7. The capsule as claimed in claim 1 , wherein the PCM exhibits a melting ...

COMPOSITIONS AND METHODS FOR DELIVERY OF ACTIVE AGENTS

The present disclosure relates to remediation of contaminated environmental sites. In particular, the present disclosure relates to passive control compositions and their use in remediation. 1. A composition , comprising:an inactive hydrogel with a core of an active agent surrounded by a polymer shell, wherein said polymer swells and releases said agent in response to a change in environment.2. The composition of claim 1 , wherein said polymer is selected from the group consisting of chitosan claim 1 , carboxymethylcellulose claim 1 , alginate claim 1 , polyacrylamide claim 1 , and carrageenan.3. The composition of or claim 1 , wherein said polymer is cross-linked.4. The composition of claim 3 , wherein said polymer is cross-linked with a cross-linking agent selected from the group consisting of glutaraldehyde claim 3 , formaldehyde claim 3 , and genipin.5. The composition of claim 1 , wherein said active agent is selected from the group consisting of calcium carbonate claim 1 , magnesium oxide claim 1 , and citric acid.6. The composition of claim 1 , wherein said active agent is a nanoparticle claim 1 , a micron sized particle claim 1 , or a droplet.7. The composition of claim 1 , wherein said change in environment is selected from the group consisting of pH claim 1 , temperature claim 1 , and oxidation state.8. The composition of claim 1 , wherein release of said agent alters the pH of said environment.9. The composition of claim 1 , wherein said inactive hydrogel is dehydrated or in a colloidal suspension.10. A method of remediating an environmental site claim 1 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'introducing the composition of to an environmental site undergoing remediation under conditions such that said composition releases said active agent only within a defined pH range.'}11. The method of claim 10 , wherein said defined pH range is determined by the polymer and crosslinking agent.12. The method of claim 10 , wherein said ...

METHOD FOR PRODUCING MICROCAPSULES OR BEADS

An object of the invention is to provide a method for producing a capsule or microbead having high encapsulation efficiency of an encapsulated substance, high production efficiency, and high versatility. The invention relates to a method for producing a microcapsule or microbead, comprising: a step of disposing a monomer droplet or polymer droplet containing a substance to be encapsulated, which has a surface coated with a plurality of solid fine particles, on a flat surface; and a step of solidifying the monomer droplet or polymer droplet disposed on the flat surface in a gas phase so as to form an outer shell of a capsule or microbead, thereby forming a region enclosed by the outer shell, wherein the substance is encapsulated in the region. 1. A method for producing a mononuclear microcapsule or microbead , comprising: disposing a monomer droplet or polymer droplet containing a substance to be encapsulated , which has a surface coated with a plurality of solid fine particles , on a flat surface; and solidifying the monomer droplet or polymer droplet disposed on the flat surface in a gas phase so as to form an outer shell of a capsule or microbead , thereby forming a region enclosed by the outer shell , wherein the substance is encapsulated in the region.2. (canceled)3. The method for producing a mononuclear microcapsule or microbead according to claim 1 , further comprising removing the solid fine particles from the microcapsule or microbead.4. The method for producing a mononuclear microcapsule or microbead according to claim 1 , wherein the solidifying of the monomer droplet disposed on the flat surface in a gas phase comprises polymerizing the monomer droplet on the flat surface claim 1 , and the solidifying of the polymer droplet disposed on the flat surface in a gas phase comprises removing a solvent in the polymer droplet.5. The method for producing a mononuclear microcapsule or microbead according to claim 4 , wherein the monomer is at least one selected ...

NANOCOMPOSITES CONTAINING CRYSTALLINE POLYESTER AND ORGANOSILICA

The invention provides a process for preparing core-shell composite particles comprising a polyester, polymerized ethylenically unsaturated silane compounds, and optionally a hydrophobic surface treatment. The invention further provides a composite particle comprising a polyester and a radically polymerized ethylenically unsaturated silane compound. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. (canceled)16. (canceled)17. (canceled)18. (canceled)19. (canceled)20. (canceled)21. (canceled)22. (canceled)23. (canceled)24. (canceled)5. A composite particle comprising a core comprising an amorphous polyester , a crystalline polyester , or a mixture of an amorphous polyester and a crystalline polyester and a shell comprising a polymer or copolymer of an ethylenically unsaturated silane compound , wherein fewer than 25 mol % of the carbon in the shell is part of an ethylenically unsaturated group and wherein the polymer or copolymer of the ethylenically unsaturated silane compound is present in an amount of at least 0.1 part , per part of the total amount of polyester.2625. The composite particle of claim , wherein a proportion of T0 and T1 groups as a fraction of total T groups is from 5 to 20% as measured by Si DPMAS NMR spectroscopy.2725. The composite particle of claim , wherein the crystalline polyester has a weight average molecular weight of about 10 ,000 to about 100 ,000.2825. The composite particle of claim , wherein the crystalline polyester has an acid number of from about 1 mg KOH/to about 30 mg KOWg.2925. The composite particle of claim , wherein the amorphous polyester has a weight average molecular weight of about 10 ,000 to about 50 ,000.3025. The composite particle of claim , wherein the amorphous polyester has an acid number of from about 5 mg KOH/to about 50 mg KOH/g.3125. The composite particle of claim , ...

Microcapsules

Encapsulated perfume composition comprising at least one aminoplast core-shell microcapsule dispersed in a suspending medium, the microcapsule comprising a perfume-containing core encapsulated in a shell, said shell comprising a network of cross-linked aminoplast resin, wherein 75-100% of the resin comprises 50-90%, preferably from 60-85%, of a terpolymer and from 10-50%, preferably from 10-25%, of a polymeric stabilizer; the terpolymer comprising: (a) from 20-35 wt %, preferably 22-30% by weight of moieties derived from at least one triamine, (b) from 30-60 wt %, preferably 40-55% by weight of moieties derived from at least one diamine, (c) from 20-35 wt %, preferably 22-30% by weight of moieties derived from the group consisting of alkylene and alkylenoxy moieties having 1 to 6 methylene units, preferably 1 to 4 methylene units and most preferably 1 methylene unit. The encapsulated perfume composition is useful for the storage and dissemination of fragrance in various products, such as laundry products and fabric care products.

METHOD FOR PREPARING MICROCAPSULES BY DOUBLE EMULSION

A method for preparing solid microcapsules, comprising the steps of adding under agitation a composition C1 comprising at least one active material to a cross-linkable liquid composition C2, the active material is not an additive to be used in the lubricant, fuel or bitumen industries, drilling sludges or muds, or oil exploration/production, compositions C1 and C2 being immiscible with each other. A first emulsion is obtained comprising droplets of composition C1 dispersed in composition C2, adding under agitation the first emulsion to a liquid composition C3, composition C3 and composition C2 being immiscible with each other, to obtain a second emulsion comprising droplets dispersed in composition C3. Loading the second emulsion in a mixer which applies a homogeneous controlled shear rate to said second emulsion, said shear rate being from 1 000 s-1 to 100 000 s-1, to obtain a third emulsion comprising droplets dispersed in composition C3, and cross-linking the droplets so that solid microcapsules dispersed in composition C3 are obtained. 1. Method for preparing solid microcapsules , comprising the steps of: wherein the active material is not an additive to be used in the lubricant, fuel or bitumen industries, or in drilling sludges or muds, or an additive to be used in oil exploration/production,', 'composition C1 and composition C2 being immiscible with each other,', 'so that a first emulsion is obtained, said first emulsion comprising droplets of composition C1 dispersed in composition C2,, 'a) adding under agitation a composition C1 comprising at least one active material to a cross-linkable liquid composition C2,'} 'so that a second emulsion is obtained, said second emulsion comprising droplets dispersed in composition C3,', 'b) adding under agitation the first emulsion obtained in step a) to a liquid composition C3, composition C3 and composition C2 being immiscible with each other,'}{'sup': −1', '−1, 'claim-text': 'so that a third emulsion is obtained, said ...

DOSAGE FORMS MATURATION DEVICE, MACHINE AND PROCESS FOR PRODUCING DOSAGE FORMS WITH THE DEVICE

Maturation device for uncured polymeric dosage forms, comprising: —an external drum () with an upstream inlet () for entrance of a fluid (B) with uncured dosage forms, and a downstream outlet () for discharging cured dosage forms; —a first body () inside the drum defining at least one maturation chamber () extending in the body between an upstream chamber inlet, in fluid communication with the inlet for uncured dosage forms, and a chamber downstream outlet; —a first separation element, comprising a solid region, and a passing-through region, able, in an open condition of the chamber downstream outlet, to open the chamber outlet; wherein at least the internal body is rotatable around an own axis to determine the closing/opening condition of a chamber downstream outlet of the internal body. 143-. (canceled)44. Maturation device for curing seamless dosage forms , comprising:{'b': 310', '310', '310, 'i': b', 'c, 'an external drum () with an upstream inlet () for entrance of a fluid (B) containing uncured dosage forms, and a downstream outlet () for discharging cured dosage forms;'}{'b': '313', 'claim-text': [{'b': '313', 'i': 'a', 'at least one maturation chamber () extending in the body between'}, 'an upstream chamber inlet, in fluid communication with the inlet for uncured dosage forms in an open condition of the upstream chamber inlet, and', 'a chamber downstream outlet, for establishing a fluid passage towards downstream and the discharge outlet, in an open condition of the chamber downstream outlet;, 'a first internal body () inside the drum, defining a solid region for closing a downstream outlet of a chamber of the first internal body, and', 'a passing-through region, able, in the chamber downstream outlet open condition, to open the chamber downstream outlet in order to allow passage of fluid towards downstream and the discharge outlet of the maturation device;, 'a first separation element, comprisingwherein at least the first internal body is rotatable around ...

FRAGRANCE COMPOSITIONS CONTAINING MICROCAPSULES

Disclosed are fragrance compositions containing a microcapsule, a fragrance, a hydrocolloid, and a solvent. Also disclosed is a method of preparing these fragrance compositions. 1. A fragrance composition comprising(1) a microcapsule having a particle size of 1 micron to 100 microns,(2) a fragrance,{'sub': 10', '30', '10', '30, '(3) a hydrocolloid selected from the group consisting of a copolymer of acrylate and C-Calkyl acrylate, a copolymer of acrylic acid and vinyl pyrrolidone, a copolymer of acrylic acid and C-Calkyl acrylate, a homopolymer of acrylic acid, and combinations thereof, and'}(4) a solvent,wherein the microcapsule is homogeneously suspended in the solvent and has a microcapsule core and a microcapsule wall encapsulating the microcapsule core, and the microcapsule wall is formed of an encapsulating polymer.2. The fragrance composition of claim 1 , further comprising a neutralizing agent at a level of 0.1% to 2.5% claim 1 , in which the neutralizing agent has an HLB value of less than 11.3. The fragrance composition of claim 1 , wherein the fragrance is present at a level of 0.5% to 25%.4. The fragrance composition of claim 1 , wherein the solvent is a mixture of (i) water present at a level of 1% to 30% by weight of the composition and (ii) ethanol present at a level of 60% to 85% by weight of the composition.5. The fragrance composition of claim 1 , wherein the composition contains 0.2 wt % to 2 wt % of the hydrocolloid claim 1 , 0.5 wt % to 10 wt % of the capsule claim 1 , and 1 wt % to 30 wt % of the fragrance.6. The fragrance composition of claim 1 , wherein the microcapsule core contains by weight of the core 1% to 99% of a hydrophilic solvent and 1% to 99% of a hydrophobic solvent claim 1 , and the microcapsule wall is permeable to the hydrophilic core solvent and the fragrance.7. The fragrance composition of claim 6 , wherein the microcapsule core is free of the fragrance; the hydrophilic core solvent has a water solubility of 1 to 100 g/L ...

Method for Production of Concentrates of Preferably Water-Soluble Active Agents

The invention relates to a method for production of concentrates of water-soluble active agents, wherein, in a waterless method using solid active agents as starting materials, the crystals of an active agent are uniformly distributed in a first organic solvent to which a dispersing agent is added, the viscosity of the solution thus obtained is adjusted as applicable by a suitable auxiliary agent, a polymer creator is added to the solution thus obtained, in a second organic solvent as applicable, wherein the viscosity of either the solution to be added or the solution to be obtained is adjusted by the addition of a suitable auxiliary agent, and a crosslinking agent having at least two functional groups in a third organic solvent is given to the obtained solution, wherein the viscosity of either the added or obtained solution is in turn adjusted by the addition of a suitable auxiliary agent and the polymer creator is selected from the group comprising low-viscosity polymethylene-polyphenylisocyanate, preferably having an average NCO content of 25-35, particularly preferably 30-32%, and mixtures thereof.

METHOD FOR SYNTHESIZING MAGADIITE/PMMA NANO COMPOSITE MICROSPHERES BY USING PH VALUE REGULATION IN PICKERING EMULSION

The disclosure discloses a method for synthesizing magadiite/PMMA nano composite microspheres by using pH value regulation in a Pickering emulsion. According to the method, organic modified magadiite is used as an emulsifier, deionized water of which a pH value is regulated with a buffer solution is used as a solvent, and a methylmethacrylate monomer is used as an oil phase of a Pickering emulsion; stirring is performed to form the stable Pickering emulsion, and then a water-soluble free-radical initiator is added to initiate emulsion polymerization, thereby synthesizing magadiite/PMMA nano composite microspheres. 1. A method for synthesizing magadiite/PMMA nano composite microspheres by using pH value regulation in a Pickering emulsion , wherein the method comprises the following steps:step 1: adding a deionized water into a reaction container, adding a buffer solution to regulate a pH value, then adding an organic modified magadiite, and stirring and heating to 50° C. to 80° C., so that the organic modified magadiite is uniformly dispersed in the water;step 2: cooling to 30° C. to 40° C., adding a methylmethacrylate monomer, and continuously stirring to form a uniform and stable Pickering emulsion; andstep 3: heating the Pickering emulsion to 60° C. to 90° C., adding a water-soluble free-radical initiator, heating and keeping a temperature at 80° C. to 90° C., reacting for 3 hours to 5 hours, cooling to a temperature lower than 50° C., stopping stirring, drying in vacuum and grinding to obtain the magadiite/PMMA nano composite microspheres.2. The method according to claim 1 , wherein in the step 1 claim 1 , a mass of the deionized water accounts for 50 wt % to 90 wt % of a total mass of the Pickering emulsion.3. The method according to claim 1 , wherein in the step 1 claim 1 , the buffer solution is an HCl solution or a sodium bicarbonate solution.4. The method according to claim 1 , wherein in the step 1 claim 1 , the pH value is regulated between 3.0 and 11.0.5. ...

SELF-SUSPENDING PROPPANTS FOR HYDRAULIC FRACTURING

The invention provides for modified proppants, comprising a proppant particle and a hydrogel coating, wherein the hydrogel coating localizes on the surface of the proppant particle to produce the modified proppant, methods of manufacturing such proppants and methods of use. 1. A process for fracturing a subterranean geological formation comprising introducing into said formation a treatment fluid wherein the fluid comprises a hydraulic fracturing fluid and a suspended modified proppant having hydrophilic properties while suspended during transport , wherein the suspended modified proppant comprises a proppant substrate particle and a swollen hydrogel coating ,wherein the hydrogel coating is applied to a surface of the proppant substrate particle and localizes on the surface, andwherein the process further comprises degrading the hydrogel coating by chemical, thermal, mechanical, enzymatic or biological means after the suspended modified proppant has been introduced into the formation.2. The process of claim 1 , wherein degrading of the hydrogel coating is controlled by at least one of reaching a target temperature or amount of time in the fluid.3. The process of claim 2 , wherein degrading of the hydrogel coating is controlled so as to direct placement of the proppant substrate particle of the modified proppant to a desired location within the fracture.4. The process of claim 1 , wherein degrading of the hydrogel coating is controlled so as to direct placement of the proppant substrate particle of the modified proppant to a desired location within the fracture.5. The process of claim 4 , wherein degrading of the hydrogel coating is accomplished by means of a chemical breaker.6. The process of claim 1 , wherein the modified proppant has been formulated so that when 1 to 3 grams of the dried modified proppant is added to 100 ml of tap water in a 100 ml graduated cylinder and then inverted 8 times claim 1 , the modified proppant exhibits a settling time which is about ...

Granules

Plurality of granules comprising a ceramic core having an outer surface and a shell on and surrounding the core, wherein the shell comprises ceramic particles bound together with an inorganic binder, the inorganic binder comprising reaction product of at least alkali silicate and hardener, wherein the ceramic particles are present as greater than 50 percent by weight of the shell of the respective granule, based on the total weight of the shell of the respective granule, wherein the shell of each granule has a total porosity in a range from greater than 0 to 60 percent by volume, based on the total volume of the shell of the respective granule, wherein the shell of each granule has a volume of at least 40 volume percent, based on the total volume of the respective granule, and wherein the granules have a minimum Total Solar Reflectance of at least 0.7. The granules are useful, for example, as roofing granules.

IMPROVEMENTS IN OR RELATING TO ORGANIC COMPOUNDS

The invention relates to stable dispersion of negatively-charged aminoplast microcapsules in non-suspending detergent compositions containing an anionic surfactant. The microcapsules are stably dispersed by means of a cationic polyampholyte, which is embedded in the shells of said microcapsules. 1. An encapsulated perfume composition comprising at least one negatively-charged aminoplast core-shell microcapsule dispersed in an aqueous dispersing medium , wherein the shell of said core-shell microcapsule has embedded in it a cationic polyampholyte.2. An encapsulated perfume composition according to claim 1 , wherein the cationic polyampholyte comprises 2 to 99 mol % of a cationic or cation-forming functional group; and 1 to 98 mol % of an anion-forming functional group; and 0 to 50 mol % of a non-ionic functional group.3. An encapsulated perfume composition according to claim 1 , wherein the cationic polyampholyte is a copolymer of from 2 to 99 mol % of dimethyldiallyl ammonium chloride (DADMAC); and 1 to 98 mol % claim 1 , of acrylic acid or methacrylic acid; and 0 to 50 mol % of acrylamide.4. An encapsulated perfume composition according to claim 1 , wherein the cationic polyampholyte is a copolymer of 2 to 99 mol % of methacrylamidopropyl-trimethylammonium chloride (MAPTAC); and 1 to 98 mol % of acrylic acid or methacrylic acid; and 0 to 50 mol % claim 1 , of acrylamide.5. A non-suspending liquid detergent composition comprising an anionic surfactant and an encapsulated perfume composition as defined in .6. A detergent composition according to claim 5 , containing less than 20 wt %; of water claim 5 , enclosed within a water soluble or water-dispersible pouch.7. A detergent composition according to claim 5 , having a pH of 10 or lower.8. (canceled)9. A method of forming an encapsulated perfume composition comprising at least one negatively-charged aminoplast core-shell microcapsule dispersed in a dispersing medium as defined in claim 1 , said method comprising the ...

CAST EXPLOSIVE COMPOSITION

The invention relates to a cast explosive composition, particularly to a pre-cure castable explosive composition comprising an explosive material, a polymerisable binder, a microencapsulated cross linking reagent, said microencapsulated cross linking reagent, comprising a cross linking agent encapsulated in a microcapsule. 1. A pre-cure castable explosive composition comprising an explosive material , a polymerisable binder , and a microencapsulated cross linking reagent , said microencapsulated cross linking reagent comprising a cross linking reagent encapsulated in a microcapsule.2. The composition according to claim 1 , wherein the polymerisable binder is selected claim 1 , such that it will form with the cross linking reagent one or more of: a polyurethane claim 1 , a cellulosic material claim 1 , a cellulose acetate claim 1 , a polyester claim 1 , a polybutadiene claim 1 , a polyethylene claim 1 , a polyisobutylene claim 1 , a PVA claim 1 , a chlorinated rubber claim 1 , an epoxy resin claim 1 , a two-pack polyurethane system claim 1 , an alkyd/melanine claim 1 , a vinyl resin claim 1 , an alkyd claim 1 , a butadiene-styrene block copolymer claim 1 , a polyNIMMO claim 1 , a polyGLYN claim 1 , a GAP claim 1 , and a blend claim 1 , copolymer and/or combination thereof.3. The composition according to claim 1 , wherein the explosive material is selected from RDX claim 1 , HMX claim 1 , FOX-7 claim 1 , TATND claim 1 , HNS claim 1 , TATB claim 1 , NTO claim 1 , HNIW claim 1 , GUDN claim 1 , picrite claim 1 , aromatic nitramines such as tetryl claim 1 , ethylene dinitramine claim 1 , nitroglycerine claim 1 , butane triol trinitrate claim 1 , pentaerythritol tetranitrate claim 1 , DNAN trinitrotoluene claim 1 , inorganic oxidisers such as ammonium nitrate claim 1 , ADN claim 1 , ammonium perchlorate claim 1 , energetic alkali metal salts claim 1 , energetic alkaline earth metal salts claim 1 , and combinations thereof.4. The composition according to claim 1 , wherein ...

A METHOD FOR PREPARING REGENERATED CELLULOSE FIBERS HAVING ANTI-BACTERIA, ANTI-MITE AND ANTI-MOULD FUNCTIONS AND THE USE THEREOF

The present invention provides a method for preparing regenerated cellulose fibers having anti-bacteria, anti-mite and anti-mould functions from a fennel extract, a extract, and a thyme essential oil. The present invention also relates to the use of the regenerated cellulose fiber prepared by the above method in the field of anti-bacteria, anti-mite and mildew-resistant fabrics. The invention solves the technical defect that regenerated cellulose fibers have a single function and has poor anti-mite and anti-mould effects in the prior art. 1. A method for preparing a regenerated cellulose fiber having anti-bacterial , anti-mite and anti-mould functions , comprising the steps of:(1) preparing a composite slurry;(2) blending the composite slurry and a denatured cellulose spinning dope to prepare a blended spinning dope; and(3) spinning the blended spinning dope and performing a post-treatment, thereby producing the regenerated cellulose fiber.2. The method of claim 1 , wherein the composite slurry is prepared by a process comprising:{'i': Fructus Foeniculi', 'Litsea cubeba, 'i) blending a fennel () extract and a extract to obtain a blended powder;'}{'i': 'Thymus mongolicus Ronn.', 'ii) mixing the blended powder obtained in step i) with a thyme () essential oil to prepare an oily blended powder slurry and further emulsifying the oily blended power slurry to obtain an emulsion; and'}iii) reacting the emulsion obtained in step ii) with a urea-formaldehyde resin prepolymer to obtain the composite slurry.3Litsea cubeba. The method of claim 2 , wherein the fennel extract and the extract are blended in a mass ratio of 1:(0.5-1.5) in step i) claim 2 , and the particle size D90 of the blended powder is ≤1.568 μm.4. The method of claim 2 , wherein the mass ratio of the blended powder to the thyme essential oil in step ii) is (5-10):1.5. The method of claim 2 , wherein the emulsifying in step ii) is performed by adding the oily blended powder slurry into an aqueous system ...

MICROCAPSULES

Microcapsules including a shell and core structure are disclosed herein. In one aspect, the core includes at least one poly(allylamine). A process for producing such microcapsules is also disclosed herein. In another aspect, a curable epoxy resin composition includes a mixture of (a) at least one epoxy monomer compound and (b) a plurality of the disclosed microcapsules. Processes for producing the curable epoxy resin composition and a cured epoxy resin composite are also disclosed. 1. A microcapsule , comprising a shell and core structure , wherein the shell of the microcapsule comprises a polymer matrix comprising a reaction product of:(a) an emulsion or suspension of a highly polar liquid in a non-polar liquid, wherein the highly polar liquid exists in the form of discrete droplets dispersed in the non-polar liquid, and wherein the highly polar liquid includes a mixture of (i) a first small molecule amine compound comprising at least one amine having from 1 to 6 carbon atoms, and (ii) a second amine compound comprising at least one poly(allylamine) having greater than 6 carbon atoms; and(b) a shell-forming compound introduced into the emulsion or suspension and reacting with the second amine compound to form a polymeric shell about the droplets of highly polar liquid and to produce the microcapsules; andwherein the core of the microcapsule comprises the first small molecule amine compound and the highly polar liquid.2. The microcapsule of claim 1 , wherein the permeability of the shell is sufficient to prevent or minimize passage of the first small molecule amine compound and the highly polar liquid from the core through the shell and to provide an extended shelf-life to the microcapsule.3. The microcapsule of claim 1 , wherein the first small molecule amine compound is tetraethylene pentamine.4. The microcapsule of claim 1 , wherein the concentration of the first small molecule amine compound in the core is from about 1 weight percent to about 50 weight percent.6 ...

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 nanoparticles. 1. A composition , comprising at least one micelle in non-aqueous solution , wherein the micelle encapsules one or more nanoparticle(s).2. The composition according to claim 1 , wherein the nanoparticle is a luminescent nanoparticle.3. The composition according to claim 2 , wherein the nanoparticle is a semi-conductor nanoparticle.4. The composition according to claim 3 , wherein the nanoparticle is doped by heavy-metal ions like Ag claim 3 , Cu claim 3 , Co claim 3 , or Mn.5. The composition according to claim 2 , wherein the nanoparticle is chosen from a salt-like lattice lanthanide doped nanoparticle.6. The composition according to claim 1 , wherein the nanoparticle is a metal nanoparticle or metal oxide nanoparticle.7. The composition according to claim 1 , wherein the material of the nanoparticle is defined by the formula MNAB claim 1 , wherein M and N are independently selected from elements from group 8 claim 1 , 9 claim 1 , 10 claim 1 , 11 claim 1 , 12 claim 1 , 13 or 14 of the periodic table claim 1 , e.g. but not limited to Fe claim 1 , Co claim 1 , Ni claim 1 , Pt claim 1 , Cu claim 1 , Zn claim 1 , Cd claim 1 , Al claim 1 , Ga claim 1 , In claim 1 , Ge claim 1 , Sn or Pb claim 1 , and A and B are independently selected from elements from group 10 claim 1 , 11 claim 1 , 15 or 16 from the periodic table claim 1 , e.g. but not limited to Pd claim 1 , Pt claim 1 , N claim 1 , P claim 1 , As claim 1 , Sb claim 1 , O claim 1 , S claim 1 , Se or Te claim 1 , and wherein x and y can be independently varied between 0 and 1.8. The composition according to claim 1 , wherein the nanoparticle comprises at least one shell.9. The composition according to claim 8 , wherein the material of the shell is defined by the formula OCD claim 8 , wherein O can be independently chosen from group 8 claim 8 , 9 claim 8 , ...

Incorporation of chitosan in microcapsule wall

The microcapsules and process of making describe a novel core shell microcapsule. The microcapsule incorporates a polysaccharide such as chitosan into the microcapsule wall forming the shell. The microcapsule shell is formed by dissolving chitosan into a material of structure 2. The microcapsules according to wherein the polysaccharide is chitosan.3. The microcapsules according to wherein the chitosan has a degree of deacetylation of at least 50%.4. The microcapsules according to wherein the wall material comprises greater than 50 wt % of multifunctional (meth)acrylate.5. The microcapsules according to wherein the multifunctional (meth)acrylate is selected from the group consisting of mono- claim 1 , di- claim 1 , tri- claim 1 , tetra- claim 1 , penta- claim 1 , hexa- claim 1 , hepta- claim 1 , or octa-functional acrylate or methacrylate esters claim 1 , multi-functional urethane acrylate or methacrylate esters claim 1 , and epoxy acrylates or methacrylates.6. The microcapsules according to wherein the wall material comprises 0.1 to 20% by weight polysaccharide.7. The microcapsules according to wherein the wall material comprises a polymer obtained by polymerization of:0.1 to 80% by weight of multifunctional (meth)acrylate monomer;0.1 to 60% by weight of the polysaccharide; and0.1 to 30% by weight of the initiator of formula 1.8. The population of microcapsules according to comprising in addition an aqueous medium into which the microcapsules are dispersed forming a slurry claim 1 , said slurry having a zeta potential greater than 0 millivolts when measured at a pH of 5.11. The process according to wherein the initiator according to formula 1 is 4 claim 10 ,4′-azobis (4-cyanopentanoic acid).12. The process according to wherein the chitosan has a degree of deacetylation of at least 75%.13. The process according to wherein the microcapsule wall contains 0.01 to 14% by weight of chitosan.14. The process according to wherein the chitosan is partially deacetylated.15. ...

Composite 3d-printed reactors for gas absorption, purification, and reaction

A composite material for gas capture, notably CO 2 capture and storage. The composite material includes a mixture of a solid or liquid reactive filler and a gas permeable polymer such that the reactive filler forms micron-scale domains in the polymer matrix.

PROCESS FOR DRYING A SUSPENSION OF HYDROGEL MICROCAPSULES

Described herein is a new process for the preparation of powdered microcapsules encapsulating active volatile active ingredients, in particular a perfume or a flavour, the process being performed at room temperature. Powdered microcapsules obtainable by the process are also described. Perfuming and flavouring compositions as well as consumer products including the capsules are also described. 1. Process for drying at room temperature or below room temperature a suspension of hydrogel microcapsules , said method comprising the steps of:(i) providing an aqueous suspension of hydrogel microcapsules, each hydrogel microcapsule comprising an oil phase containing a hydrophobic active ingredient;(ii) mixing the suspension obtained in step (i) with hydrophobic particles to obtain free-flowing microcapsules;(iii) drying the free-flowing microcapsules obtained in step (ii) by mixing the microcapsules with a desiccant and/or by submitting the microcapsules under a gas flow to obtain a dried free-flowing microcapsules powder; and(iv) optionally, sifting the dried microcapsules powder to remove excess desiccant.2. The process according to claim 1 , wherein the step (iii) comprises drying the free-flowing microcapsules obtained in step (ii) by mixing the microcapsules with the desiccant.3. The process according to claim 1 , wherein the aqueous suspension is devoid of water-soluble carbohydrate carrier.4. The process according to claim 1 , wherein the hydrogel microcapsules are each in the form of a core-shell microcapsule claim 1 , each microcapsule having a hydrogel shell and an oil-based core.5. The process according to claim 1 , wherein the ratio between the hydrophobic particles and microcapsules is between 0.001 and 0.15.6. The process according to claim 1 , wherein when the desiccant is used in step (iii) claim 1 , the ratio between the desiccant and microcapsules is between 0.1 and 10.7. The process according to claim 1 , wherein the hydrophobic particles are selected from ...

IMPROVEMENTS IN OR RELATING TO ORGANIC COMPOUNDS

The invention relates to an encapsulated fragrance composition including at least one microcapsule dispersed in a dispersion medium, said at least one microcapsule including a fragrance oil core and a positively charged shell, which includes a reaction product of at least one at least difunctional anionically modified isocyanate with an amine or alcohol, preferably a polyamine, and wherein the shell is formed around droplet of core material that is stabilized with a positively charged colloidal stabilizer. Furthermore, the invention relates to a process of formation of said encapsulated fragrance compositions. 1. An encapsulated fragrance composition comprising at least one microcapsule dispersed in a dispersion medium , said at least one microcapsule comprising a fragrance oil core and a positively charged shell , which comprises a reaction product of at least one at least difunctional anionically modified isocyanate with an amine or alcohol , and wherein the shell is formed around droplet of core material that is stabilized with a positively charged colloidal stabilizer.2. The encapsulated fragrance composition according to claim 1 , wherein the positively charged shell comprises a reaction product of a mixture of at least two at least difunctional polyisocyanates with an amine or alcohol claim 1 , wherein the mixture of the at least two difunctional polyisocyanates comprises at least one nonionic polyisocyanate and at least one anionically modified polyisocyanate.3. The encapsulated fragrance composition according to claim 1 , wherein the at least one microcapsule has a volume average diameter of 2 to 90 mm.4. The encapsulated fragrance composition according to claim 1 , wherein the core of the at least one microcapsule is 60 to 97% by weight and the shell of the microcapsule is 40 to 3% by weight of the shell claim 1 , based on the total weight of the microcapsule.5. The encapsulated fragrance composition according to in form of an aqueous dispersion.6. The ...

ENCAPSULATED FRAGRANCE MIXTURES

The invention relates to fragrance mixtures comprising at least one 60 wt.-% fragrance molecules which are characterized such that they are oriented along a virtual axis X, Y and Z, having a dimension of X>5 angstrom, Y>3 angstrom and angstrom. 1. A fragrance mixture comprising at least 60% by weight of fragrance molecules , wherein , when they are aligned along a virtual set of axes X , Y and Z , they have dimensions of X>5 angströms , Y>3 angströms and Z>2 angströms , with the proviso that the number of different fragrances in the mixture is at least 2.2. The fragrance mixture as claimed in claim 1 , wherein the odor threshold value (OTV) of the individual fragrance molecules in the mixture is less than 10 ppm.3. The fragrance mixture as claimed in claim 1 , wherein the number of different fragrances in the mixture is not more than 10.4. The fragrance mixture as claimed in claim 1 , wherein at least one of the fragrances is present in the mixture in a concentration of at least 10% by weight claim 1 , preferably at most 60% by weight.5. The fragrance mixture as claimed in claim 1 , wherein at least one of the fragrances in the mixture has a sulfur or nitrogen atom claim 1 , and is preferably a nitrile group.6. The fragrance mixture as claimed in claim 1 , wherein at least one of the fragrances in the mixture has a molar mass of greater than 120 g/mol.7. The fragrance mixture as claimed in claim 1 , wherein the fragrances in the mixture have a log Kvalue of 1 to 10.8. The fragrance mixture as claimed in claim 1 , wherein at least 80% by weight of the fragrance molecules have dimensions of X>7 angströms claim 1 , Y >4 angströms and Z>2 angströms.9. The fragrance mixture as claimed in claim 1 , wherein the fragrance mixture contains only very little solvent claim 1 , if any.10. A capsule comprising a fragrance mixture as claimed in .11. The capsule as claimed in claim 10 , wherein the capsule has an average diameter between 1 μm and 8 mm.12. A consumer product ...

APPARATUS AND METHOD OF PREPARING ELECTRONIC INK MICROCAPSULES

An apparatus and a method of preparing electronic ink microcapsules are disclosed. The apparatus of preparing electronic ink microcapsules includes: a first input tube, a second input tube, a UV light source, and an output tube connected to both the first input tube and the second input tube, respectively. The first input tube is a shading tube adapted to input an electrophoresis suspension comprising a mixture of a pre-polymer and a photo-initiator. The second input tube is adapted to input an aqueous solution comprising surfactant. The UV light source is adapted to radiate the mixed liquid in the output tube which is a mixture of the liquids input from the first input tube and the second input tube to prepare the electronic ink microcapsules. The electronic ink microcapsules prepared by using the apparatus and the method of preparing electronic ink microcapsules exhibit advantages including good uniformity, good thermal stability, etc. 1. An apparatus of preparing electronic ink microcapsules , comprising a first input tube , a second input tube , a UV light source , and an output tube connected to both the first input tube and the second input tube , respectively , wherein:the first input tube is a shading tube adapted to input an electrophoresis suspension comprising a mixture of a pre-polymer and a photo-initiator;the second input tube is adapted to input an aqueous solution comprising a surfactant; andthe UV light source is adapted to radiate the mixed liquid in the output tube, which is a mixture of the liquids from the first input tube and the second input tube to prepare the electronic ink microcapsules.2. The apparatus of preparing electronic ink microcapsules in accordance with claim 1 , wherein the first input tube and the second input tube are detachably connected to the output tube claim 1 , respectively.3. The apparatus of preparing electronic ink microcapsules in accordance with claim 2 , wherein both the first input tube and the second input tube ...

BINDER COMPOSITION FOR SECONDARY BATTERY ELECTRODE, SLURRY COMPOSITION FOR SECONDARY BATTERY ELECTRODE, ELECTRODE FOR SECONDARY BATTERY, AND SECONDARY BATTERY

Provided is a binder composition for a secondary battery electrode that can cause a secondary battery to display excellent rate characteristics and cycle characteristics. The binder composition for a secondary battery electrode contains a first particulate polymer having a core-shell structure including a core portion and a shell portion that partially covers an outer surface of the core portion. 1. A binder composition for a secondary battery electrode comprisinga first particulate polymer having a core-shell structure including a core portion and a shell portion that partially covers an outer surface of the core portion.2. The binder composition for a secondary battery electrode of claim 1 , whereinthe core portion is formed from a polymer having a degree of swelling in electrolysis solution of at least 300 mass % and no greater than 900 mass %, andthe shell portion is formed from a polymer having a degree of swelling in electrolysis solution of greater than 100 mass % and no greater than 200 mass %.3. The binder composition for a secondary battery electrode of or claim 1 , whereinthe core portion is formed from a polymer having a glass transition temperature of at least −60° C. and no higher than −15° C., andthe shell portion is formed from a polymer having a glass transition temperature of at least 40° C. and no higher than 200° C.4. The binder composition for a secondary battery electrode of any one of - claim 1 , whereina mass proportion of the shell portion in the first particulate polymer is at least 3 mass % and no greater than 35 mass %.5. The binder composition for a secondary battery electrode of any one of - claim 1 , whereinthe core portion is formed from a polymer including at least 50 mass % and no greater than 99.5 mass % of a (meth)acrylic acid ester monomer unit.6. The binder composition for a secondary battery electrode of any one of - claim 1 , further comprisinga second particulate polymer, whereinthe second particulate polymer has a degree of ...

Microfluidic Droplet Generators

Disclosed herein is a novel method of producing monodisperse aqueous droplets, as well as a novel microfluidic droplet generator. In some examples, the method comprises flowing an aqueous solution through a microchannel and into a sample reservoir of the microfluidic droplet generator, wherein monodisperse droplets of the aqueous solution form by step-emulsification at a step change in height at an intersection of a reservoir end of the microchannel and a sidewall of the sample reservoir. In some examples, the aqueous solution is a hydrogel precursor solution and monodisperse droplets of the hydrogel precursor solution form by step-emulsification at the step change in height at the intersection of the reservoir end of the microchannel and the sidewall of the sample reservoir. In some examples, the monodisperse droplets of the hydrogel precursor solution are incubated under conditions suitable for gelation to form hydrogel beads. 1. A method , comprising: a body having a single inlet fluidly connected to a microchannel fluidly connected to a sample reservoir, wherein:', 'the sample reservoir comprises a floor and a sidewall, and contains a reservoir fluid that is immiscible in water;', 'the microchannel comprises an inlet end and a reservoir end; and', 'the reservoir end of the microchannel intersects the sidewall of the sample reservoir at a location submerged beneath the reservoir fluid; and, 'providing a microfluidic droplet generator comprisingflowing an aqueous solution into the inlet, through the microchannel, and into the sample reservoir by applying pressure at the inlet, wherein monodisperse droplets of the aqueous solution form by step-emulsification at a step change in height at the intersection of the reservoir end of the microchannel and the sidewall of the sample reservoir.2. The method of claim 1 , wherein the pressure at the inlet is applied with a manual or electric air-displacement micropipette.3. The method of claim 1 , wherein the pressure at the ...

USE OF AN AMPHOLYTE COPOLYMER AS COLLOIDAL STABILIZER IN A PROCESS OF ENCAPSULATING FRAGRANCE

The invention relates to the use of an ampholyte copolymer as a colloidal stabilizer in the preparation of core-shell microcapsules containing a fragrance, 1. A method for preparing core-shell microcapsules containing a fragrance , the method comprising , in the presence of an ampholyte copolymer used as a colloidal stabilizer , reacting at least one anionically modified polyisocyanate with at least one polyamine or at least one polyfunctional alcohol , 2 to 99 mol % of cationic monomer having at least one quaternary ammonium group,', '1 to 98 mol % of acrylic based monomer,', '0 to 97 mol % of non-ionic monomer,, 'wherein the ampholyte copolymer comprisesand wherein the ampholyte copolymer has more cationic charges than anionic charges, wherein the cationic charges of the ampholyte copolymer are exclusively due to the at least one quaternary ammonium group of the cationic monomer.2. The method according to claim 1 , wherein the microcapsules are made of the reaction product of at least one anionically modified polyisocyanate and at least one nonionic polyisocyanate with at least one polyamine or at least one polyfunctional alcohol.3. The method according to claim 1 , wherein the cationic monomer is chosen from the group consisting of quaternized dimethylaminoethyl acrylate (ADAME) claim 1 , quaternized dimethylaminoethyl methacrylate (MADAME) claim 1 , dimethyl diallylammonium chloride (DADMAC) claim 1 , acrylamidopropyltrimethyl ammonium chloride (APTAC) and methacrylamidopropyltrimethylammonium chloride (MAPTAC).4. The method according to claim 1 , wherein the cationic monomer is methacrylamidopropyltrimethylammonium chloride (MAPTAC).5. The method according to claim 1 , wherein the acrylic based monomer is chosen from the group consisting of acrylic acid claim 1 , methacrylic acid claim 1 , itaconic acid claim 1 , crotonic acid claim 1 , maleic acid claim 1 , fumaric acid claim 1 , 2-acrylamido-2-methylpropane sulfonic acid claim 1 , vinylsulfonic acid claim 1 , ...

EXPLOITING OXYGEN INHIBITED PHOTOPOLYMERIZATION WITHIN EMULSION DROPLETS FOR THE FABRICATION OF MICROPARTICLES WITH CUSTOMIZABLE PROPERTIES

Described are methods and devices for the generation of hydrogel particles with micrometer and submicrometer dimensions using oxygen-inhibited partial polymerization, and the particles generated therefrom. The described methods generate particles with dimensions independent of the starting polymerizable solution dimension, for example, a microdroplet. Further, microfluidic flow parameters (e.g. viscosity, flow rate) and photopolymerization process parameters (e.g. optical exposure intensity and duration) are controlled to generate particles with tunable crosslinking density-determined properties including elasticity, diffusivity, and biomolecular display for diverse applications such as drug delivery, tissue engineering cell scaffolds, and single- and multiple-cell therapeutics. Similarly, gradients of crosslinking density-determined properties can be created within single particles through the selection of optical exposure intensity and duration. In addition to conventional spherical shapes, a suite of non-spherical shapes may be generated by manipulating the dimensions of the microfluidic channels and other related physical and process parameters. 1. A method of generating a plurality of microparticles comprising:providing a continuous phase comprising a non-aqueous liquid and a dispersed phase comprising an aqueous solution having a monomer or a macromer and a photoinitiator;forming a composition comprising microdroplets of said aqueous phase and said non-aqueous phase, wherein oxygen is diffused through said non-aqueous phase into said microdroplets; andpartially polymerizing said aqueous phase thereby generating a microparticle within said aqueous phase having a smaller primary cross-sectional dimension than said microdroplet.2. The method of claim 1 , wherein said primary dimension of said microparticle is independent of the diameter of said microdroplet.3. The method of or claim 1 , wherein said diffusion of oxygen into said microdroplet generates an oxygen ...

FORMALDEHYDE FREE MICROSPHERES AND ENCAPSULATION

Processes for producing polymer microcapsules using vicinal functional oligomers are also described. The vicinal functional oligomers can be made by polymerizing an acrylate monomer, a styrene monomer, or both in the presence of a chain transfer agent. The vicinal functional oligomers can be reacted with epichlorohydrin to form vicinal epoxies. The vicinal epoxies can be reacted with polyamines to form epoxy polymer microspheres. The vicinal epoxies can be reacted with carbon dioxide in the presence of a catalyst to form vicinal cyclic carbonates. The vicinal cyclic carbonates can be reacted with polyamines to form isocyanate-free polymer microspheres. Polymer microspheres made by the processes are also described. 1. A process of making polyurethane microspheres comprising:polymerizing an acrylate monomer, or a styrene monomer, or both in the presence of a chain transfer agent to form a vicinal functional oligomer; andreacting the vicinal functional oligomer with an isocyanate and a polyol to form polyurethane polymer microspheres.2. The process of wherein the acrylate monomer comprises acrylic acid claim 1 , methacrylic acid claim 1 , methyl methacrylate claim 1 , t-butyl methacrylate claim 1 , butyl methacrylate claim 1 , lauryl methacrylate claim 1 , stearyl methacrylate claim 1 , N claim 1 ,N′-dimethyl amino ethyl methacrylate claim 1 , acetoacetoxy ethyl methacrylate claim 1 , or combinations thereof.3. The process of wherein the chain transfer agent is thioglycerol.4. The process of wherein the isocyanate comprises toluene diisocyanate claim 1 , isophoro diisocyanate claim 1 , hexamethylene diisocyanate claim 1 , methylene bisphenyl isocyanate claim 1 , or combinations thereof.5. The process of wherein the polyol comprises ethylene glycol claim 1 , 1 claim 1 ,4-butane diol claim 1 , 1 claim 1 ,6-hexane diol claim 1 , 1 claim 1 ,3 claim 1 ,6-hexane triol claim 1 , trimethylol propane claim 1 , poly(tetramethylene) glycol claim 1 , poly caprolactone diol claim 1 ...

A BIOLOGICALLY ACTIVE PREPARATION FOR PROTECTING PLANTS AGAINST PESTS, METHOD FOR PRODUCING SAME, MICROCONTAINER FOR SAID PREPARATION, METHOD FOR MANUFACTURING SAME, AND METHOD OF PROTECTING PLANTS AGAINST PESTS

The invention relates to the field of protecting plants against pests, and more particularly to a method of protecting plants against pests, which can be used for industrial and scientific purposes, in agriculture, horticulture and forestry. The method of protecting plants against pests according to the present invention comprises applying a biologically active preparation pre-activated in an aqueous medium to a plant, the preparation comprising microcontainers and a biological insecticide, wherein the microcontainers are made from a polymeric material in the form of a hollow receptacle with at least one opening, via which the biological insecticide is placed inside the microcontainers. The invention also provides a microcontainer and a preparation for realisation of the stated method. Furthermore, the invention provides methods for producing a microcontainer and the aforementioned preparation. 1. A method for producing a biologically active agent the method comprising:introducing a biologically active suspension comprising fungal spores and a liquid phase into microcontainers;decanting the liquid phase; anddrying said microcontainers comprising fungal spores.2. The method of claim 1 , wherein the fungal spores comprise fungi claim 1 , wherein the fungi are entomopathogenic fungi.3Beauveria bassiana, Pandora neoaphidis, Entomophaga maimaiga, Metharhizium anisopliaeacridiumMetharhizium anisopliaeanisopliae.. The method of claim 2 , wherein said entomopathogenic fungus is selected from the group consisting of fungal species var. and var.4Metharhizium anisopliaeacridium. The method of claim 2 , wherein said entomopathogenic fungus is var. species of entomopathogenic fungus.5. The method of claim 1 , wherein 1 to 100 of fungal spores are introduced into the microcontainer.6. A biologically active agent produced by the method of .7. A method for manufacturing a microcontainer to implement a method of claim 1 , the method comprising:producing microcapsules comprising a ...

QUAD-CENTRIC NOZZLE AND SYSTEM FOR HYDROCAPSULE ENCAPSULATION

A quad-centric nozzle and system for hydrocapsule encapsulation is disclosed. In at least one embodiment, a quad-centric nozzle is disclosed for encapsulating discrete droplets of liquid by generating a continuous coating or layer of a polymerizable liquid which is substantially immiscible with the core liquid. In at least one embodiment, the quad-centric nozzle includes: a material feed port assembly, a polymer feed port assembly, a first water feed port assembly, a second water feed port assembly and an encapsulated material exit port assembly. In at least one embodiment, the quad-centric nozzle is configured for use in a system for hydrocapsule encapsulation having a pressure control system, a water control system and sparging column, and an ultraviolet exposure chamber system. 1. A method for encapsulating discrete droplets of liquid for hydrocapsule encapsulation with a quad-centric nozzle assembly configured to encapsulate discrete droplets of liquid by generating a continuous coating or layer of a polymerizable liquid which is substantially immiscible with the core liquid by generating a continuous coating or layer of a polymerizable liquid which is substantially immiscible with the core liquid , the method comprising:utilizing a quad-centric nozzle having a material feed port assembly configured for input of a material to be encapsulated, a polymer feed port assembly configured for input of a polymer or other material as a coating material, a first water feed port assembly, a second water feed port assembly, and an encapsulated material exit port assembly, wherein the material feed port assembly, the polymer feed port assembly, the first water feed port assembly, the second water feed port assembly, and the encapsulated material exit port assembly are fluidly coupled to form a quad-centric nozzle for hydrocapsule encapsulation;inputting a material to be encapsulated into the material feed port assembly;inputting a coating material into the polymer feed port ...

HYBRID CAPSULES

Disclosed is a hybrid capsule containing an oil core having an active material such as a fragrance, and a capsule wall encapsulating the oil core. The hybrid capsule has a particle size of 0.1 to 1000 microns. The capsule wall is formed of a first polymer and a second polymer, in which the ratio between the first polymer and the second polymer is 1:10 to 10:1. The first polymer is a sol-gel polymer, and the second polymer is polyacrylate, polyacrylamide, poly(acrylate-co-acrylamide), polyurea, polyurethane, starch, gelatin and gum Arabic, poly(melamine-formaldehyde), poly(urea-formaldehyde), or a combination thereof. Also disclosed are a method of preparing the hybrid capsule and a consumer product containing the hybrid capsule. 1. A hybrid capsule comprising an oil core having an active material and a capsule wall encapsulating the oil core , the hybrid capsule has a particle size of 0.1 to 1000 microns,', 'the capsule wall is formed of a first polymer and a second polymer,', 'the ratio between the first polymer and the second polymer is 1:10 to 10:1,', 'the first polymer is a sol-gel polymer, and', 'the second polymer is polyacrylate, polyacrylamide, poly(acrylate-co-acrylamide), polyurea, polyurethane, starch, gelatin and gum Arabic, poly(melamine-formaldehyde), poly(urea-formaldehyde), or a combination thereof., 'wherein'}2. The hybrid capsule of claim 1 , wherein the first polymer is a silica gel or polyalkylsiloxane.3. The hybrid capsule of claim 1 , wherein the second polymer is a polyurea polymer.4. The hybrid capsule of claim 1 , further comprising a deposition aid that is polyquaternium-4 claim 1 , polyquaternium-5 claim 1 , polyquaternium-6 claim 1 , polyquaternium-7 claim 1 , polyquaternium-10 claim 1 , polyquaternium-16 claim 1 , polyquaternium-22 claim 1 , polyquaternium-24 claim 1 , polyquaternium-28 claim 1 , polyquaternium-39 claim 1 , polyquaternium-44 claim 1 , polyquaternium-46 claim 1 , polyquaternium-47 claim 1 , polyquaternium-53 claim 1 , ...

MICROCAPSULES AND MACROCAPSULES HAVING LOW REMNANT FREE FORMALDEHYDE MICROCAPSULES AND METHODS OF MAKING SAME

A microcapsule or microcapsule having a polymer wall comprising a melamine formaldehyde reacted with a crosslinking agent to form a unit cell according to a general formula (II) and/or the polymer wall has a FT-IR Spectrum as shown in FIG. The crosslinking agent is a mixture of a reaction product of a cyclic urea (U) and a multifunctional aldehyde (A), and at least one crosslinker selected from the following group: a reaction products of (i) an aminotriazine and at least one aldehyde selected from the group consisting of aliphatic monoaldehydes and multifunctional aliphatic aldehydes, (ii) urea and/or cyclic ureas and formaldehyde, or (iii) phenols and aliphatic monoaldehydes, or from alkoxycarbonylaminotriazines, or multifunctional isocyanates, epoxides, aziridines, and carbodiimides. 2. The capsule of claim 1 , wherein the crosslinking agent comprises(a) a reaction product of a cyclic urea (U) and a multifunctional aldehyde (A), and [{'sub': 'n', '(b1) reaction products of an aminotriazine and at least one aldehyde selected from the group consisting of aliphatic monoaldehydes and multifunctional aliphatic aldehydes having the structure Y(CHO), where Y is an n-functional aliphatic residue, and n is greater than 1, where U is not dihydroxyethylene urea if the crosslinker (b) is (b1),'}, '(b2) reaction products of urea and/or cyclic ureas and formaldehyde,', '(b3) alkoxycarbonylaminotriazines,', '(b4) multifunctional isocyanates, optionally partially or completely blocked,', '(b5) reaction products of phenols and aliphatic monoaldehydes,', '(b6) multifunctional epoxides,', '(b7) multifunctional aziridines, and', '(b8) multifunctional carbodiimides,, '(b) at least one crosslinker selected from the group consisting of'}wherein any of the crosslinkers (a) and (b) which have hydroxyl groups are optionally etherified with one or more linear, branched, or cyclic aliphatic alcohols3. The capsule of claim 1 , wherein the polymer wall has a thickness of about 0.2 μm to about ...

PROCESSES FOR PREPARING MULTIPLE CAPSULES

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. 136-. (canceled)38. The method of claim 37 , wherein each of the first and second capsule walls claim 37 , independently claim 37 , is formed of a polyacrylate claim 37 , polyurea claim 37 , polyurethane claim 37 , polyacrylamide claim 37 , poly(acrylate-co-acrylamide) claim 37 , starch claim 37 , silica claim 37 , gelatin and gum Arabic claim 37 , poly(melamine-formaldehyde) claim 37 , poly(urea-formaldehyde) claim 37 , or combination thereof.39. The method of claim 38 , wherein the first or second capsule wall claim 38 , independently claim 38 , is formed of a polyurea claim 38 , polyurethane claim 38 , or combination thereof.40. The method of claim 39 , wherein the first or second capsule wall claim 39 , independently claim 39 , is a reaction product between a polyisocyanate and an amine cross-linker claim 39 , an alcohol cross-linker claim 39 , or a hybrid cross-linker claim 39 , the polyisocyanate is an aromatic or aliphatic isocyanate having two or more isocyanate groups claim 39 , the amine cross-linker has two or more amine groups claim 39 , the alcohol cross-linker has two or more hydroxyl groups claim 39 , and the hybrid cross-linker has one or more amine groups and one or more hydroxyl groups.41. The method of claim 37 , wherein the mixed capsule slurry is cured at 55° C. to 130° C.42. The method of claim 37 , further comprising the step of adding a catalyst to the first emulsion claim 37 , the second emulsion claim 37 , or the emulsion mixture.43. The method of claim 37 , further comprising the step of adding a malodor counteracting agent to the capsule delivery system.44. The method of claim 37 , further comprising the step of adding a third claim 37 , fourth claim 37 , fifth claim 37 , or sixth emulsion to the emulsion mixture or mixed capsule slurry claim 37 , ...

THERMALLY-EXPANDABLE MICROSPHERES, AND COMPOSITION AND MOLDED ARTICLE CONTAINING SAME

Object: 1. A thermally expandable microsphere having a structure in which a foaming agent is encapsulated in an outer shell formed from a polymer ,the outer shell being formed from (meth)acrylonitrile (co)polymer obtained by polymerizing polymerizable monomers and a crosslinkable monomer;the polymerizable monomers being at least one type of nitrile monomer selected from the group consisting of acrylonitrile and methacrylonitrile as a main component and another vinyl monomer that is not methacrylic acid and that is copolymerizable with the nitrile monomer;an amount of the crosslinkable monomer being from 0.9 to 1.4 parts by mass per 100 parts by mass of the polymerizable monomers;the foaming agent being a mixed foaming agent containing an isododecane isomer mixture and an isooctane isomer mixture; anda ratio (%) of (R2/R1)×100 being at least 105%, where R1 is an expansion ratio after the thermally expandable microsphere has been heat-treated for 5 minutes at 150° C. and then foamed by heating for 2 minutes at 200° C., and R2 is an expansion ratio after the thermally expandable microsphere has been heat-treated for 5 minutes at 150° C. and then foamed by heating for 4 minutes at 200° C.2. The thermally expandable microsphere according to claim 1 , wherein the foaming agent further contains a saturated hydrocarbon having 7 or less carbons.3. The microsphere according to claim 1 , wherein the foaming agent includes from 50 to 75 mass % of the isododecane isomer mixture and from 25 to 50 mass % of the isooctane isomer mixture.4. The thermally expandable microsphere according to claim 2 , wherein the foaming agent includes from 45 to 55 mass % of the isododecane isomer mixture claim 2 , from 30 to 41.5 mass % of the isooctane isomer mixture claim 2 , and from 3.5 to 25 mass % of the saturated hydrocarbon having 7 or less carbons.5. The thermally expandable microsphere according to claim 2 , wherein the saturated hydrocarbon having 7 or less carbons is an isopentane isomer ...

MICROCAPSULE AND METHOD FOR PRODUCING MICROCAPSULE, AS WELL AS COSMETIC COMPOSITION AND METHOD FOR PRODUCING COSMETIC COMPOSITION

A microcapsule according to the present disclosure is composed of a core substance and a wall substance including the core substance in the wall substance. The core substance is an anionic hydrophobic substance. The wall substance is a cationic polymer. The microcapsule is smaller than 200 μm in particle size. Thus, the microcapsule is provided which is likely to give attachment to hair and unlikely to damage the hair. 1. A microcapsule comprising a core substance and a wall substance including the core substance in the wall substance ,whereinthe core substance is an anionic hydrophobic substance,the wall substance is a cationic polymer, andthe microcapsule is smaller than 200 μm in particle size.2. The microcapsule according to claim 1 , wherein the core substance is liquid.3. The microcapsule according to claim 1 , wherein the core substance contains a fatty acid having a carbon number of 5 or more at 80% or more in percent by weight.4. The microcapsule according to claim 1 , wherein the wall substance is cross-linked.5. The microcapsule according to claim 1 , wherein the wall substance includes a plurality of layers.6. A cosmetic composition comprising a plurality of the microcapsules according to and a water phase that disperses the plurality of microcapsules claim 1 ,wherein the plurality of microcapsules have an average particle size of 3 μm±1 μm and a standard deviation of 0.3±0.1.7. The cosmetic composition according to claim 6 , wherein the water phase has a conductivity of higher than 7.5 μS/cm and lower than 1000 μS/cm.8. The cosmetic composition according to claim 6 , wherein the microcapsules are equal to the water phase in specific gravity.9. A method for producing a microcapsule comprising a core substance and a wall substance including the core substance in the wall substance claim 6 , the method comprising:an oil-in-water emulsion solution preparation step of preparing an oil-in-water emulsion solution of the core substance which is an anionic ...

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. 1. 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 said water phase in said oil phase to form a water-in-oil (w/o) emulsion; andiv) inducing solidification of said water phase in said w/o emulsion,wherein said at least one organic solvent is an aliphatic or alicyclic ketone or ether.2. 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 said water phase in said oil phase to form a water-in-oil (w/o) emulsion; andiv) inducing solidification of said water phase in said w/o emulsion,{'sup': 1/2', '1/2', '1/2', '1/2', '1/2', '1/2, 'wherein said at least one organic solvent does not contain halogens and has Hansen solubility parameter values in the ranges of δD=15.0-18.5 MPa, δP=3.5-8.5 MPaand δH=4.0-5.5 MPa, or wherein said oil phase comprises a mixture of halogen-free water-immiscible organic solvents, said mixture having Hansen solubility parameter values in the ranges of δD=15.0-18.5 MPa, δP=3.5-8.5 MPaand δH=4.0-5.5 MPa.'}3. The method of wherein said at least one ...

Compositions Comprising Encapsulated Actives within Droplets and other Compartments

The present invention generally relates to microparticles and, in particular, to systems and methods for encapsulation within microparticles. In one aspect, the present invention is generally directed to microparticles containing entities therein, where the entities contain an agent that can be released from the microparticles, e.g., via diffusion. In some cases, the agent may be released from the microparticles without disruption of the microparticles. The entities may be, for instance, polymeric particles, hydrogel particles, droplets of fluid, etc. The entities may be contained within a fluid that is, in turn, encapsulated within the microparticle. The agent may be released from the entity into the fluid, and then from the fluid through the microparticle. In such fashion, the release of agent from the microparticle may be controlled, e.g., over relatively long time scales. Other embodiments of the present invention are generally directed to methods of making such microparticles, methods of using such microparticles, microfluidic devices for making such microparticles, and the like. 1. A composition comprising a plurality of microcapsules , each microcapsule comprising:a single core comprising a liquid emulsion having a continuous phase and a dispersed phase;and a shell surrounding the single core, wherein the continuous phase comprises a hydrogel.2. The composition according to wherein the dispersed phase retention fraction is greater than about 40%.3. The composition of wherein the dispersed phase comprises a material selected from the group consisting of pr op-2-enyl 3-cyclohexylpropanoate claim 1 , (4aR claim 1 ,5R claim 1 ,7aS claim 1 ,9R)-octahydro-2 claim 1 ,2 claim 1 ,5 claim 1 ,8 claim 1 ,8 claim 1 ,9a-hexamethyl-4h-4a claim 1 ,9-methanoazuleno(5 claim 1 ,6-d)-1 claim 1 ,3-dioxole claim 1 , (3aR claim 1 ,5 aS claim 1 ,9aS claim 1 ,9bR)-3a claim 1 ,6 claim 1 ,6 claim 1 ,9a-tetramethyl-2 claim 1 ,4 claim 1 ,5 claim 1 ,5a claim 1 ,7 claim 1 ,8 claim 1 ,9 ...

SYSTEMS AND METHODS FOR MAKING AND USING GEL MICROSPHERES

The present invention generally relates to microfluidic droplets and, in particular, to multiple emulsion microfluidic droplets. In certain aspects, particles such as gel particles can be prepared in an aqueous carrier from aqueous droplets (or a non-aqueous carrier from non-aqueous droplets). For example, in some embodiments, double-emulsion droplets of a first fluid, surrounded by a second fluid, contained in a carrier fluid may be prepared, where the first fluid forms a gel and the second fluid is removed. For instance, the second fluid may be dissolved in the carrier fluid, or the second fluid may be hardened, then removed, for example, due to a change in pH. Other embodiments of the present invention are generally directed to kits containing such microfluidic droplets, microfluidic devices for making such microfluidic droplets, or the like. 1. A method , comprising:providing droplets of a first fluid comprising polymer, surrounded by a second fluid, contained in a carrier fluid;solidifying the second fluid;causing the polymer in the first fluid to form a gel; andremoving the solidified second fluid, thereby forming a suspension of the gel in the carrier fluid.2. The method of claim 1 , wherein causing the polymer to form a gel comprises applying ultraviolet light to cross-link the polymer to form the gel.3. The method of any one of or claim 1 , wherein causing the polymer to form a gel comprises applying TEMED to the carrier fluid claim 1 , whereby the TEMED is able to diffuse into the first fluid.4. The method of any one of - claim 1 , wherein the second fluid comprises a solvent and a second polymer claim 1 , and solidifying the second fluid comprises causing the solvent to enter the carrier fluid such that the second polymer forms a solid.5. The method of any one of - claim 1 , wherein solidifying the second fluid comprises solidifying the second fluid by altering the temperature of the second fluid.6. The method of any one of - claim 1 , wherein the ...

FABRICATING STRUCTURED PARTICLES THROUGH RAPID HARDENING AND TAILORED COLLECTION METHODS

Fabrication of functional polymer-based particles by crosslinking UV-curable polymer drops in mid-air and collecting crosslinked particles in a solid container, a liquid suspension, or an air flow. The particles can contain different phases in the form or layered structures that contain one to multiple cores, or structures that are blended with dissolved or emulsified smaller domains. A curing system produces ultraviolet rays that are directed onto the particles in the jet stream from one side. A reflector positioned on other side of the jet stream reflects the ultraviolet rays back onto the particles in the jet stream. 1. An apparatus for fabricating structured particles , comprising:a fluid jet forming unit that produces a fluid jet stream;a material supply connected to said fluid jet forming unit that feeds material into said fluid jet forming unit, wherein said fluid jet stream is made of said material;a vibration system positioned proximate said fluid jet stream that imparts vibration to said fluid jet stream and produces a particle fluid jet stream having discrete droplets made of said material;a curing system positioned proximate said particle fluid jet stream that cures said discrete droplets and produces cured droplets; anda collection system that receives said cured droplets thereby providing the structured particles.2. The apparatus for fabricating structured particles of wherein said particle fluid jet stream has one side and another side opposite side said one side claim 1 , wherein said curing system is a curing system that produces ultraviolet rays that are directed onto said particle fluid jet stream from said one side claim 1 , further comprising at least one reflector positioned on said other side of said particle fluid jet stream that reflects said ultraviolet rays back onto said particle fluid jet stream.3. The apparatus for fabricating structured particles of wherein said material is comprised of a single component.4. The apparatus for ...

METHOD FOR PREPARING A MAGNETIC CHAIN STRUCTURE

A method for preparing a magnetic chain structure is provided. The method comprises providing a plurality of magnetic particles; dispersing the plurality of magnetic particles in a solution comprising a dopamine-based material to form a reaction mixture; applying a magnetic field across the reaction mixture to align the magnetic particles in the reaction mixture; and polymerizing the dopamine-based material on the aligned magnetic particles to obtain the magnetic chain structure. A magnetic chain structure prepared by the method is also provided. 1. A method for preparing a magnetic chain structure , the method comprisinga) providing a plurality of magnetic particles;b) dispersing the plurality of magnetic particles in a solution comprising a dopamine-based material to form a reaction mixture;c) applying a magnetic field across the reaction mixture to align the magnetic particles in the reaction mixture; andd) polymerizing the dopamine-based material on the aligned magnetic particles to obtain the magnetic chain structure.2. The method according to claim 1 , wherein the magnetic particle has a core-shell structure claim 1 , the core comprising a magnetic material claim 1 , and the shell comprising a material selected from the group consisting of a polymer claim 1 , silica claim 1 , a metal claim 1 , a metal-organic framework claim 1 , and combinations thereof claim 1 , surrounding the core.3. The method according to claim 1 , wherein the magnetic particle comprises a magnetic material selected from the group consisting of a ferromagnetic material claim 1 , a superparamagnetic material claim 1 , and combinations thereof.4. The method according to claim 1 , wherein the magnetic particle comprises a superparamagnetic material.5. The method according to claim 4 , wherein the superparamagnetic material is selected from the group consisting of a superparamagnetic metal claim 4 , a superparamagnetic metal oxide claim 4 , a heterogeneous structure comprising a ...

METHOD FOR PREPARING MICROCAPSULES AND MICROPARTICLES OF CONTROLLED SIZE

A method for preparing microparticles and solid microcapsules by adding, with stirring, a composition C′2 in a composition C3, the compositions C′2 and C3 not being miscible with each other, the composition C′2 being either a cross-linkable monophasic composition C2 or an emulsion (E1) having drops of a composition C1, having at least one active ingredient, dispersed in a crosslinkable polymeric composition C2, the compositions C1 and C2 not being miscible in each other, the viscosity of composition C3 being greater than 10,000 mP·s at 25° C. at a shear rate of 10 sand being less than 10,000 mP·s at 25° C. at a shear rate of between 100 sand 100,000 s, to obtain an emulsion (E2), applying shear to the emulsion (E2), the applied shear rate being less than 1000 s, to obtain an emulsion (E3), and polymerizing the composition C′2. 1. A method for preparing solid microcapsules comprising the steps of:a) adding, with stirring, a composition C′2 in a composition C3, the compositions C′2 and C3 not being miscible with each other, the composition C′2 being either a cross-linkable monophasic composition C2 or an emulsion (E1) comprising drops of a composition C1, comprising at least one active ingredient, dispersed in a crosslinkable polymeric composition C2,the compositions C1 and C2 not being miscible in each other,{'sup': −1', '−1', '−1, 'the viscosity of composition C3 being greater than 10,000 mP·s at 25° C. at a shear rate of 10 sand being less than 10,000 mP·s at 25° C. at a shear rate of between 100 sand 100,000 s,'}wherein an emulsion (E2) comprising drops of composition C′2 dispersed in composition C3, is obtained;{'sup': −1', '−1, 'b) applying a shear to the emulsion (E2), the applied shear rate being between 100 sand 100,000 s,'}wherein an emulsion (E3) is obtained comprising controlled-size drops of composition C′2 dispersed in the composition C3; andc) polymerizing of the composition C′2, wherein solid microcapsules dispersed in the composition C3 are obtained.2 ...

PROCESS AND DEVICE FOR IN-AIR PRODUCTION OF SINGLE DROPLETS, COMPOUND DROPLETS, AND SHAPE-CONTROLLED (COMPOUND) PARTICLES OR FIBERS

A production process and a related device comprises a formation process comprising: contacting a first liquid material and a second liquid material with each other at a contact point in a gas atmosphere, wherein at the contact point at least one of the first liquid material and the second liquid material is provided as a liquid jet propagating in a direction, to provide at the contact point a third jet of a coalesced third material propagating in a third direction. 1. A production process comprising a formation process , the formation process comprising:contacting a first liquid material and a second liquid material with each other at a contact point in a gas atmosphere, wherein at the contact point at least one of the first liquid material and the second liquid material is provided as a liquid jet propagating in a direction, to provide at the contact point a third jet of a coalesced third material propagating in a third direction.2. The production process according to the preceding claim 1 , comprising an in-flight formation process claim 1 , the in-flight formation process comprising:providing in the gas atmosphere (i) a first liquid jet directed with a first jet direction to a collision point in said gas atmosphere, wherein the first liquid jet comprises the first liquid material, and (ii) a second liquid jet directed with a second jet direction to the collision point, wherein the second liquid jet comprises the second liquid material, to provide the coalesced third material at the collision point propagating in the third direction, wherein the contact point comprises the collision point.3. The production process according to claim 2 , wherein the first jet direction of the first liquid jet and the second jet direction of the second liquid jet have a mutual angle larger than 0° and equal to or smaller than 45° claim 2 , and wherein the process comprises providing at least one of the first liquid jet and second liquid jet as uninterrupted liquid jet at said ...

PERFUME MICROCAPSULES AND RELATED FILM AND DETERGENT COMPOSITIONS

Perfume microcapsule-containing films, related solutions, and containers including the films (e.g. detergent packets) are disclosed, together with their methods of preparation and use. 1. A film having an average thickness in a range of about 5 μm to about 200 μm , the thickness comprising a mixture of a water-soluble polymer , one or more plasticizers , and a plurality of perfume fragrance-containing aminoplast resin microcapsules comprising a median (d50) particle size of at least about 12 μm and a shell comprising 75 to 100% by weight of an aminoplast resin that comprises 50 to 90% by weight of a terpolymer and 10-50% by weight of a polymeric stabilizer , wherein the terpolymer comprises:(a) 20 to 40% by weight of moieties derived from at least one triamine,(b) 25 to 60% by weight of moieties derived from at least one diamine, optionally urea; and(c) 19-35% by weight of moieties selected from the group consisting of alkylene and alkylenoxy moieties having 1 to 6 methylene units.2. The film of claim 1 , wherein the film average thickness is in a range of about 20 μm to about 100 μm.3. The film of claim 1 , wherein the water-soluble polymer comprises a polyvinyl alcohol.4. The film of claim 3 , wherein the polyvinyl alcohol includes an anionic functional group.5. The film of claim 1 , wherein the plasticizer comprises a polyol.6. The film of claim 5 , wherein the plasticizer is selected from the group consisting of glycerin claim 5 , diglycerin claim 5 , sorbitol claim 5 , ethylene glycol claim 5 , diethylene glycol claim 5 , triethylene glycol claim 5 , tetraethylene glycol claim 5 , propylene glycol claim 5 , polyethylene glycols having a molecular weight up to 400 claim 5 , neopentyl glycol claim 5 , trimethylolpropane claim 5 , water claim 5 , and combinations thereof.7. The film of claim 1 , wherein the plasticizer is present in an amount in a range of about 10 wt. % to about 45 wt. % by weight of the film.8. The film of claim 1 , wherein the film further ...

METHOD FOR PRODUCTION OF HOLLOW PARTICLE

Provided is a method for the production of a hollow particle, which can easily produce a hollow particle having plural spaces formed inside. The method for the production of a hollow particle is a method for the production of a hollow particle having plural spaces inside thereof, which comprises dispersing an oil-phase liquid prepared by dissolving or dispersing a polymerizable monomer and an oil-soluble polymerization initiator having polymerization initiation ability for the polymerizable monomer in a hydrophobic solvent, in an aqueous medium containing a water-soluble polymerization initiator having polymerization initiation ability for the polymerizable monomer, to form an oil droplet; and applying the oil-soluble polymerization initiator and the water-soluble polymerization initiator at the same time to the polymerizable monomer, and polymerizing the polymerizable monomer, to form a shell dividing plural spaces in a particle.

Aqueous dispersion, method for producing the same, and image-forming method

in which, in Formula (W), RW1 represents an alkylene group that has 1 to 6 carbon atoms and that may be branched, RW2 represents an alkyl group that has 1 to 6 carbon atoms and that may be branched, nw represents an integer of 2 to 200, and * represents a linkage position.

MULTIFUNCTIONAL TITANIUM DIOXIDE-POLYMER HYBRID MICROCAPSULES FOR THERMAL REGULATION AND VISIBLE LIGHT PHOTOCATALYSIS

Disclosed herein are phase change materials microencapsulated by a microcapsule having two shells, the first shell (directly encapsulating the phase change material) being an organic polymeric material and the second shell (an outer shell) being made from a doped TiOmaterial. The microcapsules disclosed herein may be particularly useful for improving the energy efficiency of indoor environments, as well as providing compositions that they are applied to (e.g. paints) with self-cleaning properties. 1. A microcapsule encapsulating a phase change material comprising: the core comprises a phase change material that undergoes a phase change at from 0° C. to 200° C.;', 'the first shell is an organic polymeric material; and', 'the second shell comprises a doped titanium dioxide., 'a core encapsulated by a first shell and a second shell, where the first shell is sandwiched between the second shell and the core, wherein2. (canceled)3. The microcapsule of claim 1 , wherein the phase change material is an organic phase change material.4. The microcapsule of claim 3 , wherein the organic phase change material is a C-Cparaffinic hydrocarbon.5. The microcapsule of claim 1 , wherein the titanium dioxide shell is doped with one or more of the group selected from C claim 1 , N claim 1 , F claim 1 , P claim 1 , S claim 1 , I claim 1 , La claim 1 , Ce claim 1 , Er claim 1 , Pr claim 1 , Gd claim 1 , Nd claim 1 , Sm claim 1 , V claim 1 , Fe claim 1 , Ni claim 1 , Zn claim 1 , Os claim 1 , Ru claim 1 , Mn claim 1 , Cr claim 1 , Co claim 1 , and Cu.6. The microcapsule of claim 5 , wherein:(a) the titanium dioxide shell is doped with one or more of the group selected from C, N, and F; and/or{'sub': 2-x', 'x', '2, '(b) the titanium dioxide shell comprises one or more areas consisting of a TiOFstructure and/or one or more areas consisting of a TiOFstructure.'}7. The microcapsule of claim 5 , wherein the first and second shell together comprise claim 5 , when measured by XPS:an amount of ...

COMPOSITE SHELL PARTICLE, BIOLOGICAL MATERIAL, AND METHOD OF MANUFACTURING COMPOSITE SHELL PARTICLE

A composite shell particle including a composite shell layer is provided. The composite shell layer is a hollow shell, wherein the composite shell layer includes a porous biological layer and a metallic layer. The porous biological layer is composed of an organic substance including a cell wall or a cell membrane of a bacteria or algae. The metallic layer is crosslinked with the porous biological layer to form the composite shell layer. The metallic layer includes at least one metal selected from the group consisting of iron, molybdenum, tungsten, manganese, zirconium, cobalt, nickel, copper, zinc, and calcium, and/or includes at least one selected form the group consisting of metal chelates, metal oxides, metal sulfides, metal chlorides, metal selenides, metal acid salt compounds, and metal carbonate compounds. A method of manufacturing the composite shell particle, and a biological material including the composite shell particle and the applications thereof are also provided. 1. A composite shell particle , comprising: a porous biological layer, wherein the porous biological layer is composed of an organic substance comprising a cell wall or a cell membrane of a bacteria or an algae; and', 'a metallic layer crosslinked with the porous biological layer to form the composite shell layer, wherein the metallic layer comprises at least one metal selected from a group consisting of iron, molybdenum, tungsten, manganese, zirconium, cobalt, nickel, copper, zinc, and calcium, and/or comprises at least one selected form a group consisting of metal chelates, metal oxides, metal sulfides, metal chlorides, metal selenides, metal acid salt compounds, and metal carbonate compounds., 'a composite shell layer, wherein the composite shell layer is a hollow shell, and the composite shell layer comprises2. The composite shell particle of claim 1 , wherein the cell wall of the porous biological layer comprises scorched cellulose claim 1 , and the scorched cellulose is crosslinked with ...

RENEWABLE SELF-HEALING CAPSULE SYSTEM

A renewable material for releasing a self-healing agent includes a renewable polymeric substrate with capsules and a reactant dispersed in the renewable polymeric substrate. The capsules may be formed from a first renewable shell polymer and may enclose the renewable self-healing agent. The reactant may be suitable for reacting with the renewable self-healing agent to form a polymer. 1. A renewable self-healing material , comprising:a renewable polymeric substrate;capsules formed from a first renewable shell polymer, wherein the capsules are dispersed in the renewable polymeric substrate;a renewable self-healing agent enclosed in the capsules; anda renewable reactant dispersed in the renewable polymeric substrate, wherein the renewable reactant is suitable for reacting with the renewable self-healing agent to form a polymer.2. The material of claim 1 , wherein the renewable polymeric substrate is synthesized from an acid monomer or a sugar.3. The material of claim 1 , wherein the first renewable shell polymer is a carbohydrate.4. The material of claim 3 , wherein the carbohydrate is starch.5. The material of claim 1 , wherein the first renewable shell polymer is starch-gum arabic.6. The material of claim 1 , wherein the renewable reactant is an amine or a Lewis acid.7. The material of claim 1 , wherein the capsules are further formed from a cross-linking agent.8. The material of claim 7 , wherein the cross-linking agent is glutaraldehyde.9. The material of claim 1 , wherein the renewable self-healing agent is a functionalized triglyceride vegetable oil.10. The material of claim 9 , wherein the functionalized triglyceride vegetable oil is epoxy-functionalized soybean oil.11. The material of claim 1 , wherein the capsules are further formed from a second renewable shell polymer.12. The material of claim 11 , wherein the second renewable shell polymer is gum arabic. This invention relates to the field of self-healing materials. More particularly, it relates to ...

RENEWABLE SELF-HEALING CAPSULE SYSTEM

A renewable material for releasing a self-healing agent includes a renewable polymeric substrate with capsules and a reactant dispersed in the renewable polymeric substrate. The capsules may be formed from a first renewable shell polymer and may enclose the renewable self-healing agent. The reactant may be suitable for reacting with the renewable self-healing agent to form a polymer. 1. A method for creating a renewable self-healing material , comprising:forming a microemulsion having a continuous phase that includes a first renewable shell polymer and a first solvent, and a first dispersed phase that includes a renewable self-healing agent;decreasing the solubility of the first renewable shell polymer in the continuous phase to form a second dispersed phase having a higher concentration of the first renewable shell polymer than the continuous phase, wherein decreasing the solubility causes capsules to form, each capsule having a shell of the first renewable shell polymer surrounding a core of the renewable self-healing agent; anddispersing the capsules and a renewable reactant into a renewable polymeric substrate, wherein the renewable reactant is an amine that is suitable for reacting with the renewable self-healing agent to form a polymer.2. The method of claim 1 , wherein the first renewable shell polymer is a protein.3. The method of claim 2 , wherein the protein is collagen or casein.4. The method of claim 1 , wherein the renewable polymeric substrate is synthesized from a sugar monomer.5. The method of claim 1 , wherein decreasing the solubility involves changing the pH of the microemulsion.6. The method of claim 1 , wherein the renewable self-healing agent is a functionalized soybean oil.7. The method of claim 1 , wherein forming the capsules around the first dispersed phase of self-healing agent further comprises depositing the first renewable shell polymer onto the renewable self-healing agent in the first dispersed phase.8. The method of claim 1 , wherein ...

HEAT-EXPANDABLE MICROSPHERES AND APPLICATION THEREOF

Heat-expandable microspheres including a thermoplastic resin shell and a thermally-vaporizable blowing agent encapsulated therein. The thermoplastic resin is produced by polymerizing a polymerizable component containing (A) a nitrile monomer including acrylonitrile and methacrylonitrile, (B) a carboxyl-group-containing monomer, and (C) a monomer copolymerizable with the nitrile monomer (A) and the carboxyl-group-containing monomer (B). Further, the amount of the acrylonitrile in the nitrile monomer (A) ranges from 0.1 to 9 wt % based on the nitrile monomer (A). Also disclosed are hollow particles manufactured by heating and expanding the heat-expandable microspheres; a composition containing a base compound and at least one particulate material selected from the heat-expandable microspheres and the hollow particles; and a formed product manufactured by molding or applying a coat of the composition. 1. Heat-expandable microspheres comprising a thermoplastic resin shell and a thermally-vaporizable blowing agent encapsulated therein:wherein the thermoplastic resin is produced by polymerizing a polymerizable component comprising (A) a nitrile monomer containing acrylonitrile and methacrylonitrile, (B) a carboxyl-group-containing monomer, and (C) a monomer copolymerizable with the nitrile monomer (A) and the carboxyl-group-containing monomer (B);and the amount of the acrylonitrile in the nitrile monomer (A) ranges from 0.1 to 9 wt % based on the nitrile monomer (A).2. The heat-expandable microspheres as claimed in claim 1 , wherein the amounts of the nitrile monomer (A) and the carboxyl-group-containing monomer (B) in the polymerizable component satisfy the following expression (1):{'br': None, 'Amount of the nitrile monomer (A) Подробнее

HIERARCHICAL ZEOLITE-BASED CORE/SHELL NANO- OR MICROCAPSULE

Controlled-release core/shell composite materials and methods of use are described. A composite material can include a hierarchical structured zeolite core having at least a bimodal pore structure with a first active agent loaded into pores of the core, and (b) a porous polymeric outer shell that substantially encompasses the zeolite core. The composite materials can be configured to controllably release the first active agent from the zeolite core and the porous polymeric shell in response to at least one stimulus. 1. A controlled-release core/shell composite material comprising:(a) a hierarchical structured zeolite core having at least a bimodal pore structure with a first active agent loaded into pores of the core; and(b) a porous polymeric outer shell that substantially encompasses the zeolite core, wherein the composite material is configured to controllably release the first active agent from the zeolite core and the porous polymeric shell in response to at least one stimulus.2. The controlled-release core/shell composite material of claim 1 , wherein the hierarchical structured zeolite core has a bimodal microporous-mesoporous structure.3. The controlled-release core/shell composite material of claim 2 , wherein the first active agent is loaded into the micropores and/or mesopores of the zeolite core.4. The controlled-release core/shell composite material of claim 2 , further comprising at least one additional active agent claim 2 , wherein the first active agent and at least one additional active agent are each loaded into the micropores and/or mesopores of the zeolite core claim 2 , the shell or combinations thereof claim 2 , and wherein the first and the additional active agent are:(i) different active agents;(ii) have different sizes with the first active agent being smaller in size than the second active agent; and/or(iii) capable of reacting with one another upon their release from the composite material to form an activated material.5. The controlled- ...

ENCAPSULATION METHOD

The present invention relates to a method for preparing solid capsules comprising a compound A, dispersed in a composition C4. The invention also relates to an encapsulation method, to the capsules obtained by this method, to a composition comprising them, as well as to a method using such capsules. 1. A solid capsule comprising:a core comprising a solution comprising a compound A,an internal casing comprising a thermo-expansible material, positioned around said core, wherein the thermo-expansible material is selected from the group consisting of waxes and mixtures thereof, anda polymerized rigid external casing positioned around said internal casing, said polymerized rigid external casing not being obtained by coacervation, said solid capsule being obtained according to a method comprising: C1 and C2 not being miscible with each other,', 'C2 being at temperature T2,', 'whereby an emulsion is obtained comprising drops of composition C1 dispersed in the composition C2,, 'a) adding with stirring a composition C1 comprising at least the compound A, in a liquid composition C2 comprising the thermo-expansible material,'} C3 and C2 not being miscible with each other,', 'C3 being at temperature T3,', 'whereby an emulsion is obtained comprising drops dispersed in the composition C3,, 'b) addition with stirring of the emulsion obtained in a) into a liquid composition C3 able to be polymerized,'} C4 and C3 not being miscible with each other,', 'C4 being at temperature T4 less than or equal to T2 and less than or equal to T3,', 'whereby an emulsion is obtained comprising drops dispersed in the composition C4, and, 'c) addition with stirring of the emulsion obtained in b) in a liquid composition C4,'}d) polymerization of the drops obtained in c).2. A solid capsule comprising:a core comprising a solution comprising a compound A,a polymerized rigid internal casing positioned around said core,an intermediate casing comprising a thermo-expansible material, positioned around said ...

Process for preparing aminoplast microcapsules

The present invention relates to a one-shell aminoplast core-shell microcapsule crosslinked with a polyisocyanate and encapsulating a perfume oil, prepared with very low amount of aminoplast resin. It also provides use of said aminoplast microcapsules in liquid aqueous and powder surfactant-rich consumer products.