Patent SG-11201909444W-A (SG)
Title: High temperature superconducting material and a method for production
Inventor: RIEKEN WILLIAM
IPC: C09D5/24
Filed: 2018-04-10
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 18 October 2018 (18.10.2018) W I PO I PCT onion °nolo OH 1101 loollio mom oimIE (10) International Publication Number WO 2018/189500 Al (51) International Patent Classification: COIF 5/02 (2006.01) B32B 18/00 (2006.01) CO1G 3/00 (2006.01) CO4B 35/45 (2006.01) HO1L 39/14 (2006.01) CO4B 35/622 (2006.01) HO1L 39/24 (2006.01) CO9D 5/24 (2006.01) (21) International Application Number: PCT/GB2018/000063 (22) International Filing Date: 10 April 2018 (10.04.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 10201702942T 10 April 2017 (10.04.2017) SG 10201710381W 13 December 2017 (13.12.2017) SG (71) Applicant: TRUE 2 MATERIALS PTE LTD. [SG/SG]; 16 Raffles Quay, 33-03 Hong Leong Building, Singapore 048581 (SG). (72) Inventors: RIEKEN, William; c/o True 2 Materials PTE Ltd., 16 Raffles Quay, 33-03 Hong Leong Building, Singa- pore 048581 (SG). BHARGAVA, Atit; c/o True 2 Materi- als PTE Ltd., 16 Raffles Quay, 33-03 Hong Leong Building, Singapore 048581 (SG). (74) Agent: BOULT WADE TENNANT; Verulam Gardens, 70 Gray's Inn Road, London, WC1X 8BT, Greater London (GB). (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, GB, GD, GE, GH, GM, FI, 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. (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). = (54) Title: HIGH TEMPERATURE SUPERCONDUCTING MATERIAL AND A METHOD FOR PRODUCTION (57) : The present invention provides a process for producing a LnM2Cu3O x high-temperature superconductive powder, the process compris- ing: i) providing an aqueous solution of Ln, M and Cu and at least one mineral acid; ii) adding at least one sequestrating agent and, optionally, at least one dispersant to the solution to form a precipitate; iii) recovering the precipitate from the solution; and iv) heating the precipitate in a flow of oxygen to form the LnM2Cu3O x powder, wherein Ln is a rare earth element, preferably Y, Ce, Dy, Er, Gd, La, Nd, Pr, Sm, Sc, Yb, or a mixture of two or more thereof, and wherein M is selected from Ca, Sr, and Ba. FIG. 13C FIG. 13D 15 OkV :45 00k SE 10 Opm 15 OkV x1201, SE 400µm FIG. 13E FIG. 13F [Continued on next page] FIG. 13A FIG. 138 W O 20 18/1895 00 Al WO 2018/189500 Al MIDEDIMOMMIDEFIEOMMEHMINIMMOVOIMIE Published: with international search report (Art. 21(3)) before the expiration of the time limit for amending the claims and to be republished in the event of receipt of amendments (Rule 48.2(h))