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Spray-drying process for the manufacture of dye-loaded particles.
KTH, Skolan för kemivetenskap (CHE), Kemi, Yt- och korrosionsvetenskap. KTH, Skolan för kemivetenskap (CHE), Kemi, Fysikalisk kemi.ORCID-id: 0000-0002-7461-2232
2007 (engelsk)Patent (Annet (populærvitenskap, debatt, mm))
Abstract [en]

According to a first aspect of the invention, a process is provided for the prepn. of amorphous particles comprising a homogeneous distribution of one or more dyes encapsulated by an amorphous, siliceous encapsulating agent, the process comprising: (a) providing a precursor of the encapsulating agent in liq. form; (b) providing the one or more dyes in liq. form; (c) mixing the liq. forms; (d) spraying the mixt. to form droplets comprising the one or more dyes and encapsulating agent; and (e) heating the droplets to form the particles comprising the one or more dyes encapsulated by the siliceous encapsulating agent; wherein at least one of the liq. forms provided is aq. and the or each aq. liq. form is acidic. According to a second aspect of the invention, encapsulated dyes made by the process of the first aspect of the invention are provided. [on SciFinder(R)]

sted, utgiver, år, opplag, sider
Procter & Gamble International Operations SA, Switz. . , 2007. nr WO2009022308A2
Emneord [en]
dye encapsulated spray drying process
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-78139OAI: oai:DiVA.org:kth-78139DiVA, id: diva2:497497
Patent
EP 2025720 (2010-12-08)
Merknad

US 8168095-B2 (2012-05-01); JP 5081975-B2 (2012-11-28)

Tilgjengelig fra: 2012-02-10 Laget: 2012-02-07 Sist oppdatert: 2022-10-24bibliografisk kontrollert

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