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1. (WO2013148192) YIELD OPTIMIZATION OF POLYCARBONATE POLYOLS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2013/148192    International Application No.:    PCT/US2013/030805
Publication Date: 03.10.2013 International Filing Date: 13.03.2013
IPC:
C08G 64/02 (2006.01), C08G 64/30 (2006.01)
Applicants: DOW GLOBAL TECHNOLOGIES LLC [US/US]; 2040 Dow Center Midland, MI 48674 (US)
Inventors: HEATH, William H.; (US).
SINGH, Harpreet; (US).
SINGH, Amarnath; (US).
JIMENEZ, Jorge; (US).
XU, Qiuyun; (US)
Agent: ULMER, Duane; Dow Global Technologies LLC 2040 Dow Center Midland, Michigan 48674 (US)
Priority Data:
61/616,730 28.03.2012 US
Title (EN) YIELD OPTIMIZATION OF POLYCARBONATE POLYOLS
(FR) OPTIMISATION DU RENDEMENT DE PRODUCTION DE POLYOLS DE POLYCARBONATES
Abstract: front page image
(EN)Embodiments of the invention provide for methods of producing a polycarbonate polyol. The method includes charging a vessel with butanediol, charging the vessel with a polymerization catalyst, and adding to the vessel dimethyl carbonate at a rate of at least 2.0 g of DMC per minute per kg of BDO to produce polycarbonate polyol at a polycarbonate polyol yield of at least 80% of a theoretical yield.
(FR)Des modes de réalisation de l'invention portent sur des procédés de production d'un polyol de polycarbonate. Le procédé comprend le chargement de butanediol (BDO) dans une cuve, le chargement d'un catalyseur de polymérisation dans la cuve et l'ajout de carbonate de diméthyle (DMC) à la cuve à une vitesse d'au moins 2,0 g de DMC par minute et par kg de BDO pour produire un polyol de polycarbonate à un rendement de production de polyol de polycarbonate d'au moins 80 % d'une quantité produite théorique.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, 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, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, 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, RS, 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)