FR3112494B1 - Synthesis process by soft chemistry of micron particles - Google Patents

Synthesis process by soft chemistry of micron particles Download PDF

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Publication number
FR3112494B1
FR3112494B1 FR2007458A FR2007458A FR3112494B1 FR 3112494 B1 FR3112494 B1 FR 3112494B1 FR 2007458 A FR2007458 A FR 2007458A FR 2007458 A FR2007458 A FR 2007458A FR 3112494 B1 FR3112494 B1 FR 3112494B1
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FR
France
Prior art keywords
silica
synthesis
silica particles
acid
micron
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
FR2007458A
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French (fr)
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FR3112494A1 (en
Inventor
Karine Fabio
Franck Chuzel
Marlene Sauvat
Carole Dubayle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lifescientis SAS
Original Assignee
Lifescientis SAS
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Publication date
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Priority to FR2007458A priority Critical patent/FR3112494B1/en
Priority to PCT/EP2021/069508 priority patent/WO2022013243A1/en
Publication of FR3112494A1 publication Critical patent/FR3112494A1/en
Application granted granted Critical
Publication of FR3112494B1 publication Critical patent/FR3112494B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02—Making microcapsules or microballoons
    • B01J13/06—Making microcapsules or microballoons by phase separation
    • B01J13/14—Polymerisation; cross-linking
    • B01J13/18—In situ polymerisation with all reactants being present in the same phase
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/50—Perfumes
    • C11D3/502—Protected perfumes
    • C11D3/505—Protected perfumes encapsulated or adsorbed on a carrier, e.g. zeolite or clay

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Silicon Compounds (AREA)
  • Cosmetics (AREA)

Abstract

Procédé de synthèse de particules de silice microniques. L’invention concerne un procédé de synthèse de particules de silice microniques comprenant les étapes suivantes : a) préparation de nuclei de silice par hydrolyse d'au moins un précurseur de silice dans l'eau en milieu catalytique acide, préférentiellement la quantité d'acide est choisie de sorte à être inférieure ou égale à 0,1 équivalent d’acide, b) formation d'une phase matrice par mélange d'au moins un agent de condensation choisi parmi au moins un polymère polycationique basique branché ou linéaire, et d'au moins un anion monovalent, divalent, trivalent, c) condensation en milieu basique des nuclei de silice obtenus à l'étape a) par mélange sous agitation des nuclei de silice obtenus à l'étape a) et de la phase matrice obtenue à l'étape b) à pH alcalin inférieur ou égal à 10. La présente invention concerne le domaine de la synthèse et plus particulièrement pour la préparation de particules de silice microniques, notamment de particules de silice. Figure pour l’abrégé : Fig.1BProcess for the synthesis of micron silica particles. The invention relates to a process for the synthesis of micron silica particles comprising the following steps: a) preparation of silica nuclei by hydrolysis of at least one silica precursor in water in an acid catalytic medium, preferably the amount of acid is chosen so as to be less than or equal to 0.1 equivalent of acid, b) formation of a matrix phase by mixing at least one condensation agent chosen from at least one branched or linear basic polycationic polymer, and d at least one monovalent, divalent, trivalent anion, c) condensation in a basic medium of the silica nuclei obtained in step a) by mixing with stirring the silica nuclei obtained in step a) and the matrix phase obtained in step b) at alkaline pH less than or equal to 10. The present invention relates to the field of synthesis and more particularly to the preparation of micron silica particles, in particular silica particles. Figure for abstract: Fig.1B

FR2007458A 2020-07-16 2020-07-16 Synthesis process by soft chemistry of micron particles Active FR3112494B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR2007458A FR3112494B1 (en) 2020-07-16 2020-07-16 Synthesis process by soft chemistry of micron particles
PCT/EP2021/069508 WO2022013243A1 (en) 2020-07-16 2021-07-13 Soft chemistry method for synthesising micronic silica particles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2007458 2020-07-16
FR2007458A FR3112494B1 (en) 2020-07-16 2020-07-16 Synthesis process by soft chemistry of micron particles

Publications (2)

Publication Number Publication Date
FR3112494A1 FR3112494A1 (en) 2022-01-21
FR3112494B1 true FR3112494B1 (en) 2022-07-29

Family

ID=73698937

Family Applications (1)

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FR2007458A Active FR3112494B1 (en) 2020-07-16 2020-07-16 Synthesis process by soft chemistry of micron particles

Country Status (2)

Country Link
FR (1) FR3112494B1 (en)
WO (1) WO2022013243A1 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2688812A1 (en) * 2007-05-21 2008-11-27 Aquea Scientific Corporation Highly charged microcapsules
US9763861B2 (en) * 2008-12-04 2017-09-19 International Flavors & Fragrances Inc. Stable, flowable silica capsule formulation
CN104888217B (en) * 2009-06-12 2018-10-16 鹿特丹伊拉斯谟大学医疗中心 Targeted nano light drug for cancer photodynamic therapy
US9192548B2 (en) * 2010-06-25 2015-11-24 CoLabs International Corporation Ceramic encapsulation with controlled layering by use of functionalized silanes
US8974709B2 (en) * 2010-06-25 2015-03-10 Colabs Intl Corp Ceramic encapsulation with controlled layering by use of prehydrolyzed functionalized silanes
ES2919933T3 (en) 2011-03-18 2022-07-29 Int Flavors & Fragrances Inc Microcapsules produced from combined sol-gel precursors and production method thereof
WO2015083836A1 (en) * 2013-12-06 2015-06-11 花王株式会社 Method for manufacturing microcapsules
EP3161120B1 (en) * 2014-06-27 2023-08-09 Firmenich SA Hybrid perfume microcapsules
WO2019218027A1 (en) * 2018-05-18 2019-11-21 Monash University Core-shell particles

Also Published As

Publication number Publication date
WO2022013243A1 (en) 2022-01-20
FR3112494A1 (en) 2022-01-21

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