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1. (WO2010077774) SUSPENSIONS OF SILICATE SHELL MICROCAPSULES FOR TEMPERATURE CONTROLLED RELEASE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/077774 International Application No.: PCT/US2009/067613
Publication Date: 08.07.2010 International Filing Date: 11.12.2009
IPC:
B01J 13/18 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
13
Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
02
Making microcapsules or microballoons
06
by phase separation
14
Polymerisation, crosslinking
18
In situ polymerisation with all reactants being present in the same phase
Applicants:
DOW CORNING CORPORATION [US/US]; 2200 West Salzburg Road Midland, MI 48686-0994, US (AllExceptUS)
MARTEAUX, Leon, Andre [BE/BE]; BE (UsOnly)
ZIMMERMAN, Brett, Lee [US/US]; US (UsOnly)
Inventors:
MARTEAUX, Leon, Andre; BE
ZIMMERMAN, Brett, Lee; US
Agent:
ZOMBECK, Alan; Dow Corning Corporation IP Department-CO1232 2200 West Salzburg Road Midland, MI 48686-0994, US
Priority Data:
61/138,20317.12.2008US
Title (EN) SUSPENSIONS OF SILICATE SHELL MICROCAPSULES FOR TEMPERATURE CONTROLLED RELEASE
(FR) SUSPENSIONS DE MICROCAPSULES À ENVELOPPE DE SILICATE POUR UNE LIBÉRATION COMMANDÉE PAR LA TEMPÉRATURE
Abstract:
(EN) Aqueous suspensions of silicate shell microcapsules are disclosed having a core containing a burst aid wherein the silicate shell microcapsules are obtained by; I) mixing an oil phase containing a burst aid and an aqueous solution of a cationic surfactant to form an oil in water emulsion, II) adding a water reactive silicon compound comprising a tetraalkoxysilane to the oil in water emulsion, III) polymerizing the tetraalkoxysilane at the oil/water interface of the emulsion to form a microcapsule having a core containing the oil and a silicate shell.
(FR) L'invention porte sur des suspensions aqueuses de microcapsules à enveloppe de silicate, qui possèdent un noyau contenant un auxiliaire d'éclatement. Les microcapsules à enveloppe de silicate sont obtenues par I) mélange d'une phase huileuse contenant un auxiliaire d'éclatement et d'une solution aqueuse d'un tensioactif cationique, pour former une émulsion huile-dans-eau, II) addition d'un composé du silicium apte à réagir avec l'eau, comprenant un tétraalcoxysilane, à l'émulsion huile-dans-eau, III), polymérisation du tétraalcoxysilane à l'interface huile/eau de l'émulsion pour former une microcapsule qui possède un noyau comprenant l'huile et une enveloppe de silicate.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP2367619JP2012512025US20110236498CN102227254JP2015013288KR1020110112353