Patent SG-11201809574P-A (SG)
Title: Method of making polyetherimide
Inventor: TOPLE NITIN VILAS
IPC: C08G73/10
Filed: 2017-05-23
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 30 November 2017 (30.11.2017) WIPO I PCT IiiimmoimiolollmolommiolonninomoiflovoimIE (10) International Publication Number WO 2017/205335 Al (51) International Patent Classification: C08G 73/10 (2006.01) (21) International Application Number: PCT/US2017/033937 (22) International Filing Date: 23 May 2017 (23.05.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/340,831 24 May 2016 (24.05.2016) US (71) Applicant: SABIC GLOBAL TECHNOLOGIES B.V. [NL/NL]; Plasticslaan 1, 4612 PX Bergen op Zoom (NL). (72) Inventor; and (71) Applicant (for BZ only): GUGGENHEIM, Thomas Link [US/US]; 1 Lexan Lane, Mount Vernon, Indiana 47620-9367 (US). (72) Inventors: TOPLE, Nitin Vilas; 1 Lexan Lane, Mount Vernon, Indiana 47620-9367 (US). VENKATARA- MAN, Karthik; 1 Lexan Lane, Mount Vernon, Indiana 47620-9367 (US). (74) Agent: WHITEHOUSE, Patricia S.; Cantor Colburn LLP, 20 Church Street, 22nd Floor, Hartford, Connecticut 06103 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): 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, 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. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (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), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Declarations under Rule 4.17: as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(ii)) as to the applicant's entitlement to claim the priority of the earlier application (Rule 4.17(iii)) Published: — with international search report (Art. 21(3)) 1 1 en (54) Title: METHOD OF MAKING POLYETHERIMIDE 1 1 © (57) : A method of making a polyetherimide comprises: combining a bisphenol A dianhydride, p-phenylene diamine and a halogenated aromatic solvent to form a reactant solution; heating the reactant solution to a temperature of 205°C to 330 °C at a pressure sufficient to prevent boiling to afford a reaction solution; removing water from the reaction solution; maintaining the reaction solution © at a temperature of 205°C to 330°C and a pressure sufficient to prevent boiling for 10 minutes to 5 hours to form a product mixture N comprising the polyetherimide and solvent; and isolating the polyetherimide.