WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO2018089566) Polycarbonate Based Polyols
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/089566 International Application No.: PCT/US2017/060748
Publication Date: 17.05.2018 International Filing Date: 09.11.2017
IPC:
C08G 65/26 (2006.01) ,C08G 64/02 (2006.01) ,C08G 64/34 (2006.01) ,C08G 18/42 (2006.01)
Applicants: DOW GLOBAL TECHNOLOGIES LLC[US/US]; 2040 Dow Center Midland, MI 48674, US
Inventors: NIKBIN, Nima N.; US
BABB, David A.; US
Agent: THEKDI, Amy; US
Priority Data:
62/420,91811.11.2016US
62/434,66415.12.2016US
Title (EN) Polycarbonate Based Polyols
(FR) POLYOLS À BASE DE POLYCARBONATE
Abstract: front page image
(EN) A method of manufacturing a poly(ether-carbonate) polyol comprises a polymerization stage that includes polymerizing carbon dioxide and at least one alkylene oxide, with a starter, in the presence of a double metal cyanide polymerization catalyst and a catalyst promoter that is devoid of halide anions and cyanide. The catalyst promoter is separate from the double metal cyanide polymerization catalyst.
(FR) La présente invention concerne un procédé de fabrication d'un polyol de poly(éther-carbonate) qui comprend une étape de polymérisation qui consiste à polymériser du dioxyde de carbone et au moins un oxyde d'alkylène, avec un initiateur, en présence d'un catalyseur de polymérisation au cyanure métallique double et d'un promoteur de catalyseur qui est dépourvu d'anions halogénure et de cyanure. Le promoteur de catalyseur est séparé du catalyseur de polymérisation au cyanure métallique double.
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, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, 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, SA, 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 (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)