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1. (WO2012114357) PROCESS FOR PREPARING HYPERBRANCHED POLYESTERSFIELD
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2012/114357    International Application No.:    PCT/IN2012/000125
Publication Date: 30.08.2012 International Filing Date: 23.02.2012
IPC:
C08G 63/12 (2006.01), C08G 63/83 (2006.01), C08G 63/87 (2006.01)
Applicants: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH [IN/IN]; [An Indian Registered body incorporated under the Registration of Societies Act (Act XXI of 1860)] Anusandhan Bhawan, Rafi Marg New Delhi 110001 (IN) (For All Designated States Except US).
SRINIVAS, Darbha [IN/IN]; (IN) (For US Only).
SEBASTIAN, Joby [IN/IN]; (IN) (For US Only)
Inventors: SRINIVAS, Darbha; (IN).
SEBASTIAN, Joby; (IN)
Agent: DHAWAN, Ramesh, C.; Lall Lahiri & Salhotra Plot No. B -28, Sector-32 Institutional Area Gurgaon 122001 Haryana (IN)
Priority Data:
471/DEL/2011 23.02.2011 IN
Title (EN) PROCESS FOR PREPARING HYPERBRANCHED POLYESTERSFIELD
(FR) PROCÉDÉ DE PRÉPARATION DE POLYESTERS HYPER-RAMIFIÉS
Abstract: front page image
(EN)An efficient, eco-friendly, solvent-free process for preparing hyperbranched polyesters by reacting polyols with polycarboxylic acid in the presence of heterogeneous, reusable, acid, crystalline, micro-mesoporous double-metal cyanide catalyst at moderate temperatures and short period of reaction time.
(FR)L'invention concerne un procédé sans solvant, efficace et écologique de préparation de polyesters hyper-ramifiés, par la mise en réaction de polyols et d'un acide polycarboxylique, en présence d'un catalyseur à base de cyanure métallique double, hétérogène, réutilisable, acide, cristallin et micro-mésoporeux, à des températures modérées et pendant un temps de réaction court.
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, RW, 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)