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Machine translation
1. (WO2009059140) PREPARATION OF POLYTRIMETHYLENE ETHER GLYCOL
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2009/059140    International Application No.:    PCT/US2008/081997
Publication Date: 07.05.2009 International Filing Date: 31.10.2008
IPC:
C08G 65/00 (2006.01)
Applicants: E. I. DU PONT DE NEMOURS AND COMPANY [US/US]; 1007 Market Street, Wilmington, DE 19898 (US) (For All Designated States Except US).
HARMER, Mark, Andrew [GB/US]; (US) (For US Only).
CONFER, David, C. [US/US]; (US) (For US Only).
KRISTJANSDOTTIR, Sigridur, Soley [DE/US]; (US) (For US Only).
JACKSON, Scott, Christopher [US/US]; (US) (For US Only).
HOFFMANN, Christian [DE/US]; (US) (For US Only).
SPENCE, Rupert [CA/CA]; (CA) (For US Only)
Inventors: HARMER, Mark, Andrew; (US).
CONFER, David, C.; (US).
KRISTJANSDOTTIR, Sigridur, Soley; (US).
JACKSON, Scott, Christopher; (US).
HOFFMANN, Christian; (US).
SPENCE, Rupert; (CA)
Agent: LHULIER, Christine, M.; E. I. du Pont de Nemours and Company, Legal Patent Records Center, 4417 Lancaster Pike, Wilmington, DE 19805 (US)
Priority Data:
60/984,398 01.11.2007 US
Title (EN) PREPARATION OF POLYTRIMETHYLENE ETHER GLYCOL
(FR) PRÉPARATION DE POLYTRIMÉTHYLÈNE ÉTHER GLYCOL OU DE COPOLYMÈRES ASSOCIÉS
Abstract: front page image
(EN)This invention relates to a process for preparing polytrimethylene ether glycols or copolymers thereof by a polycondensation reaction using at least one acid catalyst, wherein the temperature of the reaction is controlled such that the average temperature during the first half of the reaction is higher than the average temperature during the second half of the reaction.
(FR)Cette invention concerne un procédé de préparation de polytriméthylène éther glycols ou de copolymères associés par une réaction de polycondensation utilisant au moins un catalyseur acide, la température de la réaction étant contrôlée de sorte que la température moyenne pendant la première moitié de la réaction soit supérieure à la température moyenne pendant la seconde moitié de la réaction.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, 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, 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 (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, MT, NL, NO, 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)