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1. (WO2007006848) STARCH ETHERIFICATION METHOD
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/006848 International Application No.: PCT/FI2006/000248
Publication Date: 18.01.2007 International Filing Date: 12.07.2006
IPC:
C08B 31/08 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
B
POLYSACCHARIDES; DERIVATIVES THEREOF
31
Preparation of chemical derivatives of starch
08
Ethers
Applicants:
KEMIRA OYJ [FI/FI]; Porkkalankatu 3 FI-00180 Helsinki, FI (AllExceptUS)
MYLLYMÄKI, Vesa [FI/FI]; FI (UsOnly)
AKSELA, Reijo [FI/FI]; FI (UsOnly)
Inventors:
MYLLYMÄKI, Vesa; FI
AKSELA, Reijo; FI
Agent:
BERGGREN OY AB; Pilot Business Park Lentokatu 2 FI-90460 Oulunsalo, FI
Priority Data:
2005075214.07.2005FI
Title (EN) STARCH ETHERIFICATION METHOD
(FR) PROCEDE D'ETHERIFICATION DE L'AMIDON
Abstract:
(EN) The invention relates to a method for preparing a starch ether. The method comprises mixing cellulose with an ionic liquid solvent to dissolve the starch, and then treating the dissolved starch with an etherifying agent in the presence of a base to form a starch ether, and subsequently separating the starch ether from the solution, wherein both the dissolution and the etherification are carried out in the substantial absence of water.
(FR) L'invention concerne un procédé de préparation d'un éther d'amidon. Ledit procédé consiste à mélanger de la cellulose avec un solvant liquide ionique pour dissoudre l'amidon, puis à traiter l'amidon dissous avec un agent d'éthérification en présence d'une base pour former un éther d'amidon, et à séparer l'éther d'amidon de la solution, la dissolution et l'éthérification étant réalisées sensiblement sans eau.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, 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, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, 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:
EP1907427CA2621974