Patent SG-11201804524T-A (SG)
Title: Process for the production of polyurethane foams
Inventor: PRADHAN PRANAYA
IPC: C08G18/48
Filed: 2016-12-19
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -' Organization International Bureau (43) International Publication Date ..... ..sr.1 29 June 2017(29.06.2017) WIPO I PCT II (10) 111111111111111111111 WO International IIIII IIIII II III 2017/108711 IIIII Publication 11111 IIIII IIIII III IIII Al Number RIO IIII IIIIIIII (51) International Patent Classification: (74) Agents: MATTHEZING, Robert, Maarten et al.; Shell CO8G 18/48 (2006.01) CO8G 18/76 (2006.01) International B.V. - Intellectual Property Services, PO Box 384, 2501 CJ The Hague (NL). (21) International Application Number: PCT/EP2016/081785 (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, (22) International Filing Date: AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, 19 December 2016 (19.12.2016) BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, (25) Filing Language: English DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KIT, KN, (26) Publication Language: English KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, (30) Priority Data: MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, 6795/CHE/2015 21 December 2015 (21.12.2015) IN 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, (71) Applicant (for all designated States except US): SHELL TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, INTERNATIONALE RESEARCH MAATSCHAPPIJ ZA, ZM, ZW. B.V. [NL/NL]; Carel van Bylandtlaan 30, 2596 HR The Hague (NL). (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, (71) Applicant (for US only): SHELL OIL COMPANY GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, [US/US]; Shell Plaza 1, Houston, Texas 77252-2463 (US). TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, (72) Inventors: PRADHAN, Pranaya, Man, Singh; Plot No 7, 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, Bengaluru Hardware Park, Devanahalli Industrial Park. LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, Mahadeva Kodigahalli, Karnataka, 562149 Bangalore SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, North (IN). NACHIAPPAN, Eswaramurthi; Plot No 7, GW, KM, ML, MR, NE, SN, TD, TG). Bengaluru Hardware Park, Devanahalli Industrial Park. Mahadeva Kodigahalli, Karnataka, 562149 Bangalore Declarations Rule 4.17: under North (IN). ELEVELD, Michiel, Barend; Grasweg 31, — as to applicant's entitlement to apply for and be granted a 1031 HW Amsterdam (NL). DHANAPAL, Prem, Kumar; patent (Rule 4.170) Plot No 7, Bengaluru Hardware Park, Devanahalli Industri- al Park. Mahadeva Kodigahalli, Karnataka, 562149 Ban- Published: North (IN). galore — with international search report (Art 21(3)) Il .4t Il Il IN GC C::: , Il rr: (54) Title: PROCESS FOR THE PRODUCTION OF POLYURETHANE FOAMS 1-1 C (57) : A process for the production of a polyurethane foam having a resilience of at least 50%, said process comprising re- el acting (i) a first polyether polyol comprising polyether chains containing no more than 20% ethylene oxide content, and having a ega ) primary hydroxyl content of no more than 25%; (ii) a second polyether polyol comprising polyether chains containing at least 50% :I f ethylene oxide content; and (iii) one or more aromatic polyisocyanates, in the presence of one or more catalysts having gelling and/or blowing activities.