Patent SG-11201905942W-A (SG)
Title: Hydrophilic polymer and membrane for oil-water separation and method of producing the same
Inventor: ANTONY PRINCE JAMES SELVARAJ
IPC: C08F222/06
Filed: 2017-01-18
Abstract: OHNH NH2 Malefic . nhydride MarninestukonitMe benzoic add CN CN 00 O C (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 26 July 2018 (26.07.2018) WIP0 I PCT omit VIII °nolo 01110ll VIII iononomo oimIE (10) International Publication Number WO 2018/135999 Al (51) International Patent Classification: CO8F 222/40 (2006.01) BOlD 71/44 (2006.01) C08F 226/02 (2006.01) BOlD 71/76 (2006.01) C08F 222/06 (2006.01) BOlD 69/02 (2006.01) BOlD 71/40 (2006.01) (21) International Application Number: PCT/SG2017/050024 (22) International Filing Date: 18 January 2017 (18.01.2017) (25) Filing Language: English (26) Publication Language: English (71) Applicant: NGEE ANN POLYTECHNIC [SG/SG]; Technology Development Office, BLK 7, #02-06, 535 Clementi Road, Singapore 599489 (SG). (72) Inventors: ANTONY PRINCE, James Selvaraj; Envi- ronmental & Water Technology Centre of Innovation, Blk 34, #01-01, 535 Clementi Road, Singapore 599489 (SG). BHUVANA, Sowrirajalu; Environmental & Water Tech- nology Centre of Innovation, Blk 34, #01-01, 535 Clementi Road, Singapore 599489 (SG). ANBHARASI, Vananga- mudi; Environmental & Water Technology Centre of In- novation, Blk 34, #01-01, 535 Clementi Road, Singapore 599489 (SG). SINGH, Gurdev; Environmental & Water Technology Centre of Innovation, Blk 34, #01-01, 535 Clementi Road, Singapore 599489 (SG). MOHAN, Pan- durangan; Environmental & Water Technology Centre of Innovation, Blk 34, #01-01, 535 Clementi Road, Singapore 599489 (SG). BALAMURUGAN, Ramalingam; Environ- mental & Water Technology Centre of Innovation, Blk 34, #01-01, 535 Clementi Road, Singapore 599489 (SG). (74) Agent: ALLEN & GLEDHILL LLP; One Marina Boule- vard #28-00, Singapore 018989 (SG). (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). Published: with international search report (Art. 21(3)) (54) Title: HYDROPHILIC POLYMER AND MEMBRANE FOR OIL-WATER SEPARATION AND METHOD OF PRODUCING THE SAME Figure 4 (57) : This invention relates to a hydrophilic polymer and membrane for oil-water separation. More particularly, this invention relates to a super hydrophilic polymer and membrane with zwitterionic property for oil-water separation, and method of producing the same. The hydrophilic polymer comprises polymer repeat units, each unit having at least one negatively charged carboxylic functional group and at least one positively charged amine functional group; and a monomer having a single aromatic ring and an imide functional group.