Encapsulated benefit agents

The invention provides improved deposition and reduced leakage benefits from a particle comprising: (a) a core comprising a benefit agent; (b) a shell, wherein the shell comprises a crosslinked, hydrophobically modified polyvinyl alcohol, which comprises a crosslinking agent comprising i) a first dextran aldehyde having a molecular weight of from 2,000 to 50,000 Da; and ii) a second dextran aldehyde having a molecular weight of from greater than 50,000 to 2,000,000 Da.

Method and apparatus of determining stiffness coefficients of formation

The present invention proposes a method and apparatus of determining stiffness coefficients of formation, wherein the method comprising: setting up a relation of stiffness coefficients of formation C11 and C33, C44, C66 based on stiffness coefficients of a formation core sample; computing clay content of formation along depth continuously based on formation logging information; computing the stiffness coefficient of formation C33 along depth continuously based on a P-wave velocity and a volume density of the formation; computing the stiffness coefficient of formation C44 along depth continuously based on a S-wave velocity and a volume density of the formation; and then computing the stiffness coefficients of formation C11 and C66 along depth continuously based on the calculations above, the relation of stiffness coefficients of formation C11 and C33, C44, C66, and a relation of an anisotropy coefficient of the P-wave of the formation and its clay content or a relation of an anisotropy coefficient ...

Improvements relating to encapsulated benefit agents

A process for the preparation of a particle, wherein the particle comprises: (a) a core comprising a hydrophobic benefit agent; (b) an outer crosslinked shell, which comprises a crosslinked, hydrophobically modified polyvinyl alcohol, which comprises a crosslinking agent comprising a first dextran aldehyde having a molecular weight of from 2,000 to 2,000,000 Da; and (c) an inner polyamide shell, wherein the shell comprises a polyamide, and wherein the polyamide comprises an aromatic group; wherein the outer crosslinked shell is formed prior to the formation of the inner polyamide shell.

MICROCAPSULE

Disclosed is a microcapsule comprising a benefit agent inside a water insoluble porous inner shell, an outer shell comprising at least one layer of cationic polymer and at least one layer of anionic polymer, wherein the anionic polymer is anionic ally modified polysaccharide, and optionally the microcapsule comprises a non-ionic polysaccharide deposition aid. 1. A microcapsule comprising:a) a benefit agent inside a water insoluble porous inner shell;b) an outer shell comprising at least one layer of cationic polymer and at least one layer of anionic polymer;wherein the anionic polymer is anionically modified polysaccharide, and optionally the microcapsule comprises a non-ionic polysaccharide deposition aid.2. The microcapsule according to wherein the microcapsule has an average size of from 0.6 to 40 μm.3. The microcapsule according to wherein the porous inner shell has a pore with an average size of 5 nm to 500 nm.4. The microcapsule according to wherein the inner porous shell comprises melamine-formaldehyde claim 1 , silica claim 1 , or a mixture thereof.5. The microcapsule according to wherein the cationic polymer is selected from polyallylamine hydrochloride claim 1 , poly(ethyleneimine) claim 1 , poyquaternium-49 claim 1 , poly(L-lysine) claim 1 , poly(diallyldimethylammonium chloride) claim 1 , polyquaternium-39 claim 1 , and polyhexamethylene biguanidine hydrochloride.6. The microcapsule according to wherein the cationic polymer has a weight average molecular weight of from 10 claim 1 ,000 to 400 claim 1 ,000.7. The microcapsule according to wherein the anionic polymer is preferably anionically modified cellulose.8. The microcapsule according to wherein the anionically modified polysaccharide has a weight average molecular weight of from from 5 claim 1 ,000 to 1 claim 1 ,000 claim 1 ,000.9. The microcapsule according to wherein the benefit agent is fragrance.10. The microcapsule according to wherein the outer shell comprises 1 to 10 layers of cationic polymer ...

MICROCAPSULE

Disclosed is a microcapsule comprising a benefit agent inside a water insoluble porous inner shell, an outer shell comprising at least one layer of cationic polymer and at least one layer of anionic polymer, and a non-ionic polysaccharide deposition aid. 1. A microcapsule comprising:a) a benefit agent inside a water insoluble porous inner shell;b) an outer shell comprising at least one layer of cationic polymer and at least one layer of anionic polymer; andc) a non-ionic polysaccharide deposition aid.2. The microcapsule according to wherein the microcapsule has an average size of from 0.6 to 40 μm.3. The microcapsule according to wherein the porous inner shell has a pore with an average size of 5 nm to 500 nm.4. The microcapsule according to wherein the porous inner shell comprises melamine-formaldehyde claim 1 , silica or a mixture thereof.5. The microcapsule according to wherein the cationic polymer is selected from polyallylamine hydrochloride claim 1 , poly(ethyleneimine) claim 1 , polyquaternium-49 claim 1 , poly(L-lysine) claim 1 , poly(diallyldimethylammonium chloride) claim 1 , polyquaternium-39 claim 1 , and polyhexamethylene biguanidine hydrochloride.6. The microcapsule according to wherein the cationic polymer has a weight average molecular weight of from 10 claim 1 ,000 to 400 claim 1 ,000.7. The microcapsule according to wherein the anionic polymer is selected from poly-styrenesulfonic acid claim 1 , heparin claim 1 , polyacrylic acid claim 1 , and alginate.8. The microcapsule according to wherein the anionic polymer has a weight average molecular weight of from 10 claim 1 ,000 to 300 claim 1 ,000.9. The microcapsule according to wherein the benefit agent is fragrance.10. The microcapsule according to wherein the outer shell comprises 1 to 10 layers of cationic polymer and 1 to 10 layers of anionic polymer.11. The microcapsule according to wherein the deposition aid is bonded to the inner shell.12. A process for producing the microcapsule of claim 1 , ...

METHOD AND APPARATUS OF DETERMINING STIFFNESS COEFFICIENTS OF FORMATION

The present invention proposes a method and apparatus of determining stiffness coefficients of formation. In some embodiments, the invention includes setting up a relation of stiffness coefficients of formation Cand C, C, C; computing clay content of formation along depth continuously; computing the stiffness coefficient of formation Calong depth continuously; computing the stiffness coefficient of formation Calong depth continuously; and depending on the calculations above, the relation of stiffness coefficients of formation Cand C, C, C, and a relation of an anisotropy coefficient of the P-wave of the formation and its clay content or a relation of an anisotropy coefficient of the S-wave of the formation and its clay content, computing the stiffness coefficients of formation Cand Calong depth continuously. 1. A method of determining stiffness coefficients of formation , comprising:{'sub': 11', '33', '44', '66', '33', '44, 'depending on stiffness coefficients of a formation core sample, setting up a relation of stiffness coefficients of formation Cand C, C, C; depending on formation logging information, computing clay content of formation along depth continuously; depending on a P-wave velocity and a volume density of the formation, computing the stiffness coefficient of formation Calong depth continuously; depending on a S-wave velocity and a volume density of the formation, computing the stiffness coefficient of formation Calong depth continuously;'}{'sub': 33', '11', '11', '33', '44', '66', '11', '33', '44', '66', '44', '66', '11', '33', '44', '66', '33', '44', '66', '11, 'first of all, depending on a relation of an anisotropy coefficient of the P-wave of the formation and its clay content, the clay content of the formation, and the stiffness coefficient of the formation C, computing the stiffness coefficient of the formation Calong depth continuously, and further depending on the relation of the stiffness coefficients of the formation Cand C, C, Cand the ...

IMPROVEMENTS RELATING TO ENCAPSULATED BENEFIT AGENTS

A process for the preparation of a particle, wherein the particle comprises: (a) a core comprising a hydrophobic benefit agent; (b) an outer crosslinked shell, which comprises a crosslinked, hydrophobically modified polyvinyl alcohol, which comprises a crosslinking agent comprising a first dextran aldehyde having a molecular weight of from 2,000 to 2,000,000 Da; and (c) an inner polyamide shell, wherein the shell comprises a polyamide, and wherein the polyamide comprises an aromatic group; wherein the outer crosslinked shell is formed prior to the formation of the inner polyamide shell. 1. A process for the preparation of a particle , wherein the particle comprises:(a) a core comprising a hydrophobic benefit agent;(b) an outer crosslinked shell, which comprises a crosslinked, hydrophobically modified polyvinyl alcohol, which comprises a crosslinking agent comprising a first dextran aldehyde having a molecular weight of from 2,000 to 2,000,000 Da; and 'wherein the outer crosslinked shell is formed prior to the formation of the inner polyamide shell.', '(c) an inner polyamide shell, wherein the shell comprises a polyamide, and wherein the polyamide comprises an aromatic group;'}2. A process as claimed in claim 1 , comprising the steps of: a) an oil phase comprising the hydrophobic benefit agent and a reactive monomer comprising an aromatic group; and', 'b) a water phase comprising a hydrophobically modified polyvinyl alcohol;, 'i) forming an emulsion comprising'}ii) adding the first dextran aldehyde having a molecular weight of from 2,000 to 2,000,000 Da such that crosslinking of the hydrophobically modified polyvinyl alcohol occurs to form the outer crosslinked shell; andiii) adding a reactive amine such that the reactive monomer in the oil phase undergoes polymerisation to form the inner polyamide shell.3. A process as claimed in claim 1 , wherein the first dextran aldehyde has a molecular weight of from 2 claim 1 ,000 to 50 claim 1 ,000 Da claim 1 , and the outer ...

ENCAPSULATED BENEFIT AGENTS

The invention provides a particle comprising: (a) a core comprising a benefit agent; (b) a shell, wherein the shell comprises a polyamide, and wherein the polyamide comprises an aromatic group; and (c) an optional deposition aid; wherein the benefit agent comprises 70-100 wt %, by total weight of the benefit agent, of a component selected from tertiary alcohols, alpha substituted aldehydes, aliphatic and aromatic ketones and ketenes and mixtures thereof, excluding cyclic aliphatic materials containing polar functional groups; and the benefit agent is substantially free from i) aliphatic primary alcohols and ii) aromatic primary alcohols and contains less than 15 wt % of aliphatic aldehydes having a chain length of from 8 to 22, by total weight of the benefit agent. 2. A particle as claimed in claim 1 , wherein the deposition aid is a polysaccharide claim 1 , more preferably a non-ionic polysaccharide.3. A particle as claimed in having an average diameter of from 5 to 50 microns.4. A particle according to wherein the benefit agent is a fragrance claim 1 , an antimicrobial compound or a mixture thereof.5. The particle as claimed in claim 1 , wherein the polyamide comprises at least one water miscible monomer and one water immiscible organic monomer.6. The particle as claimed in claim 5 , wherein the water miscible monomer comprises a material selected from the group consisting of a diamine claim 5 , a triamine and mixtures thereof.7. The particle as claimed in claim 6 , wherein the diamines and triamines are selected from the group consisting of diethylene triamine claim 6 , hexamethylene diamine claim 6 , ethylene diamine and mixtures thereof.8. The particle as claimed in claim 5 , wherein the water immiscible organic monomer is selected from the group consisting of diacyl chlorides claim 5 , triacyl chlorides and mixtures thereof.9. The particle as claimed in claim 8 , wherein the diacyl chlorides is selected from the group consisting of sebacoyl dichloride claim 8 ...

ENCAPSULATED BENEFIT AGENTS

The invention provides improved deposition and reduced leakage benefits from a particle comprising: (a) a core comprising a benefit agent; (b) a shell, wherein the shell comprises a crosslinked, hydrophobically modified polyvinyl alcohol, which comprises a crosslinking agent comprising i) a first dextran aldehyde having a molecular weight of from 2,000 to 50,000 Da; and ii) a second dextran aldehyde having a molecular weight of from greater than 50,000 to 2,000,000 Da. 1. A particle comprising:(a) a core comprising a benefit agent; i) a first dextran aldehyde having a molecular weight of from 2,000 to 50,000 Da; and', 'ii) a second dextran aldehyde having a molecular weight of from greater than 50,000 to 2,000,000 Da., '(b) a shell, wherein the shell comprises a crosslinked, hydrophobically modified polyvinyl alcohol, which comprises a crosslinking agent comprising'}2. A particle as claimed in claim 1 , wherein the total amount of the first dextran aldehyde and the second dextran aldehyde is 0.5 to 5.0 wt % claim 1 , by total weight of the particle.3. A particle as claimed in wherein the ratio of the second dextran aldehyde to the first dextran aldehyde is from 0.1 to 10 claim 1 , by weight.4. A particle as claimed in wherein the first dextran aldehyde has a molecular weight of from 5 claim 1 ,000 to 30 claim 1 ,000 Da; and the second dextran aldehyde has a molecular weight of from 100 claim 1 ,000 to 500 claim 1 ,000 Da.5. A particle as claimed in wherein the hydrophobically modified polyvinyl alcohol is modified with butyraldehyde.6. A particle as claimed in wherein the core further comprises an additional component selected from polymeric agents claim 1 , solvents and mixtures thereof.7. A particle as claimed in claim 6 , wherein the solvent is selected from diethyl phthalate claim 6 , isopropyl myristate claim 6 , PEG-600 claim 6 , C12-15 alkyl benzoate and mixtures thereof.8. A particle as claimed in claim 6 , wherein the polymeric agent is selected from ...

Improvements relating to encapsulated benefit agents

The invention provides improved deposition and reduced leakage benefits from a particle comprising: (a) a core comprising a benefit agent; (b) a shell, wherein the shell comprises a crosslinked, hydrophobically modified polyvinyl alcohol, which comprises acrosslinking agent comprising i) a first dextran aldehyde having a molecular weight of from 2,000 to 50,000 Da; and ii) a second dextran aldehyde having a molecular weight of from greater than 50,000 to 2,000,000 Da.

Microcapsule

Disclosed is a microcapsule comprising a benefit agent inside a water insoluble porous inner shell, an outer shell comprising at least one layer of cationic polymer and at least one layer of anionic polymer, and a non-ionic polysaccharide deposition aid.

Microcapsule

Microcapsule

Improvements relating to encapsulated benefit agents

particle, liquid composition, household care or personal care composition and substrate treatment method

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granular surface cleaning composition, cleaning mixture and method for surface cleaning

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Improvements relating to encapsulated benefit agents

Microcapsule

process for the preparation of a particle, particle obtained from the process, liquid composition, household care or personal care composition and method of treating a substrate

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Improvements related to encapsulated beneficial agents

Una partícula que comprende: (a) un núcleo que comprende un agente beneficioso; (b) una cubierta, en la que la cubierta comprende una poliamida, y en la que la poliamida comprende un grupo aromático; y (c) un adyuvante de deposición opcional; en la que el agente beneficioso comprende el 70-100% en peso, por peso total del agente beneficioso, de un componente seleccionado de entre alcoholes terciarios, aldehídos alfa sustituidos, cetonas y cetenos alifáticos y aromáticos y mezclas de los mismos, excluyendo materiales alifáticos cíclicos que contienen grupos funcionales polares; y el agente beneficioso está sustancialmente libre de i) alcoholes primarios alifáticos y ii) alcoholes primarios aromáticos y contiene menos del 15% en peso de aldehídos alifáticos que tienen una longitud de cadena de 8 a 22, por peso total del agente beneficioso. A particle comprising: (a) a core comprising a beneficial agent; (b) a cover, in which the cover comprises a polyamide, and in which the polyamide comprises an aromatic group; and (c) an optional deposition aid; wherein the beneficial agent comprises 70-100% by weight, by total weight of the beneficial agent, of a component selected from tertiary alcohols, substituted alpha aldehydes, aliphatic and aromatic ketones and cetenes and mixtures thereof, excluding aliphatic materials cyclics containing polar functional groups; and the beneficial agent is substantially free of i) aliphatic primary alcohols and ii) aromatic primary alcohols and contains less than 15% by weight of aliphatic aldehydes having a chain length of 8 to 22, by total weight of the beneficial agent.

Method and apparatus of determining stiffness coefficients of formation

The present invention proposes a method and apparatus of determining stiffness coefficients of formation, wherein the method comprising: depending on stiffness 5 coefficients of a formation core sample, setting up a relation of stiffness coefficients of formation C11 and C33 , C4 , C66; depending on formation logging information, computing clay content of formation along depth continuously; depending on a P-wave velocity and a volume density of the formation, computing the stiffness coefficient of formation C33 along depth continuously; depending on a S-wave velocity and a 10 volume density of the formation, computing the stiffness coefficient of formation C4 along depth continuously; and then depending on the calculations above, the relation of stiffness coefficients of formation C11 and C33, C4, C66, and a relation of an anisotropy coefficient of the P-wave of the formation and its clay content or a relation of an anisotropy coefficient of the S-wave of the formation and its clay content, 15 computing the stiffness coefficients of formation C11 and C66 along depth continuously. The present invention does not need to calculate stiffness coefficients by using a horizontal S-wave velocity inversed from the extracted stoneley waves, and avoids an extraction process of horizontal S-wave, such that the calculation is simple and effective. 7262424_1 (GHMatters) P101911.AU conducting an acoustic anisotropy measurement and a volume density calculation for a core sample, obtaining stiffness 101 coefficients and an anisotropy coefficient of P-wave and S-wave of the core sample conducting an X diffraction measurement for the core sample, obtaining the clay content data thereof setting up an experimental relation of an anisotropy coefficient of P-wave of the core sample and its clay content, and an 103 experimental relation of an anisotropy coefficient of S-wave of the core sample and its clay content depending on the obtained stiffness coefficients of the core 104 sample, ...

PROCESS FOR THE PREPARATION OF A PARTICLE, PARTICLE OBTAINED FROM THE PROCESS, NET COMPOSITION, COMPOSITION FOR DOMESTIC CARE OR PERSONAL CARE AND METHOD OF TREATING A SUBSTRATE

processo para a preparação de uma partícula, partícula obtida a partir do processo, composição líquida, composição para cuidado doméstico ou cuidados pessoais e método de tratamento de um substrato um processo para a preparação de uma partícula, em que a partícula compreende: (a) um núcleo que compreende um agente de benefício hidrofóbico; (b) um invólucro reticulado externo que compreende um álcool polivinílico reticulado hidrofobicamente modificado, que compreende um agente de reticulação, que compreende um primeiro aldeído dextrano com um peso molecular de 2.000 a 2.000.000 da; e (c) um invólucro de poliamida interno, em que o invólucro compreende uma poliamida, e em que a poliamida compreende um grupo aromático; em que o invólucro reticulado externo é formado antes da formação do invólucro de poliamida interno.