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1. (WO2012044482) PROCESS FOR BROMINATING BUTADIENE POLYMERS USING MIXED SOLVENTS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2012/044482    International Application No.:    PCT/US2011/052114
Publication Date: 05.04.2012 International Filing Date: 19.09.2011
IPC:
C08F 8/20 (2006.01), C08C 19/12 (2006.01)
Applicants: DOW GLOBAL TECHNOLOGIES LLC [US/US]; 2040 Dow Center Midland, MI 48674 (US) (For All Designated States Except US).
KING, Bruce, A. [US/US]; (US) (For US Only).
HULL, John, Wesley [US/US]; (US) (For US Only)
Inventors: KING, Bruce, A.; (US).
HULL, John, Wesley; (US)
Agent: COHN, Gary, C.; Gary C. Cohn PLLC 215 E. 96th St. # 19L New York, NY 10128 (US)
Priority Data:
61/388,265 30.09.2010 US
Title (EN) PROCESS FOR BROMINATING BUTADIENE POLYMERS USING MIXED SOLVENTS
(FR) PROCÉDÉ DE BROMATION DE POLYMÈRES DE BUTADIÈNE AU MOYEN DE MÉLANGES DE SOLVANTS
Abstract: front page image
(EN)Butadiene polymers are brominated using a quaternary ammonium or quaternary phosphonium tribromide as the brominating agent. The bromination is performed in a solvent mixture than contains at least one polyhalogenated alkane and at least one monohalogenated alkane. The process proceeds easily under mild conditions and allows high conversions to be achieved easily.
(FR)La présente invention consiste à bromer des polymères de butadiène en utilisant, comme agent de bromation, un tribromure d'ammonium quaternaire ou de phosphonium quaternaire. Cette bromation s'effectue dans un mélange de solvants contenant au moins un alcane polyhalogéné et au moins un alcane monohalogéné. Ce traitement, qui est facile à exécuter dans des conditions normales de température et de pression, permet d'obtenir facilement des taux de conversion élevés.
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, 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, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, 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)