Patent SG-11201807947P-A (SG)
Title: Nanofibers
Inventor: GANESHKUMAR RAJASEKARAN
IPC: C08K3/22
Filed: 2017-03-17
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -, Organization 1111111101111011101010111110101111101110111100110101111011101111101111011111 International Bureau 0.. .... .. (10) International Publication Number ..... ..or::,„, (43) International Publication Date WO 2017/160238 Al 21 September 2017 (21.09.2017) WIP0 I PCT (51) International Patent Classification: of Technology And Design, 8 Somapah Road, #05-302 C08K 3/22 (2006.01) B82Y 30/00 (2011.01) Building 3, Level 5, Singapore 487372 (SG). RONG, D01D 5/00 (2006.01) H01L 41/08 (2006.01) Zhao; c/o Singapore University of Technology And (21) International Application Number: Design, 8 Somapah Road, #05-302 Building 3, Level 5, Singapore 487372 (SG). CHEAH, Chin Wei; c/o Singa- PCT/SG2017/050135 pore University of Technology And Design, 8 Somapah (22) International Filing Date: Road, #05-302 Building 3, Level 5, Singapore 487372 17 March 2017 (17.03.2017) (SG). PING, Wu; c/o Singapore University of Technology And Design, 8 Somapah Road, #05-302 Building 3, Level (25) Filing Language: English 5, Singapore 487372 (SG). (26) Publication Language: English (74) Agent: AMICA LAW LLC; 30 Raffles Place, #14-01 (30) Priority Data: Chevron House, Singapore 048622 (SG). 10201602101R 17 March 2016 (17.03.2016) SG (81) Designated States (unless otherwise indicated, for every (71) Applicant: SINGAPORE UNIVERSITY OF TECHNO- kind of national protection available): AE, AG, AL, AM, LOGY AND DESIGN [SG/SG]; 8 Somapah Road, #05- AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, 302 Building 3, Level 5, Singapore 487372 (SG). 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, — (72) Inventors: GANESHKUMAR, Rajasekaran; c/o Singa- HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, pore University of Technology And Design, 8 Somapah KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, Road, #05-302 Building 3, Level 5, Singapore 487372 MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, (SG). V. SOPIHA, Kostiantyn; c/o Singapore University [Continued on next page] Title: NANOFIBERS = (54) (57) : The present invention relates to nanofibers. In particular, the present invention relates to potassium niobate nanofibers. In an aspect of the present invention, there is provided a method of preparing the nanofibers, the method comprising: (a) dissolving niobium chloride and potassium sorbate in a = = = solvent to obtain a first solution; (b) removing chloride precipitates formed from the first solution; (c) adding a polymer, for example polymethylmethacrylate or = = polyvinylpyrrolidone to the solution to obtain a second spinnable solution; and (d) electrospinning the spinnable solution to produce the fibers. The application also discloses the application of such nanofibers in the manufacture of a humidity = sensor device by sputtering a metal such as Tantalum on top of the nanofibers. . = = Figure 7(a) = = = = 11 GC M ei © Figure 7(b) 11 IN 11 © ei O WO 2017/160238 Al MIDEDIMOMOIDEIRMEMOMMIN1101110MEMEHOIS NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, 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 DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). LT, SE, GA, kind of regional protection available): ARIPO (BW, GH, Published: GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, with international search report (Art. 21(3))