Patent SG-11201806367X-A (SG)
Title: Heat-induced grafting of nonwovens for high capacity ion exchange separation
Inventor: HELLER MICHAEL LEONARD
IPC: C08K5/23
Filed: 2017-07-17
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property MD 1101111 0 DOI HIM 011101 0 011111111111111111111111111111111111111111111111 Organization International Bureau (10) International Publication Number (43) International Publication Date ......0\"\" WO 2018/015871 Al 25 January 2018 (25.01.2018) WIP0 I PCT (51) International Patent Classification: AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, C08J 5/22 (2006.01) C08K 5/23 (2006.01) CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, CO8J 7/16 (2006.01) BOlD 71/28 (2006.01) DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, C08K 5/14 (2006.01) HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, (21) International Application Number: KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, PCT/IB2017/054312 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, (22) International Filing Date: SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, 17 July 2017 (17.07.2017) TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (25) Filing Language: English (84) Designated States (unless otherwise indicated, for every (26) Publication Language: English kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, (30) Priority Data: UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, 62/363,516 18 July 2016 (18.07.2016) US TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FL FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, (71) Applicant: NORTH CAROLINA STATE UNIVERSI- MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TY [US/US]; Poulton Innovation Center, 1021 Main Cam-TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, pus Drive, Raleigh, NC 27606 (US). KM, ML, MR, NE, SN, TD, TG). (72) Inventors: HELLER, Michael Leonard; c/o North Car- olina State University, 1021 Main Campus Drive, Raleigh, Declarations under Rule 4.17: NC 27606 (US). CARBONELL, Ruben G.; 6105 Godfrey — as to applicant's entitlement to apply for and be granted a Drive, Raleigh, NC 27612 (US). patent (Rule 4.17(ii)) — as to the applicant's entitlement to claim the priority of the = (74) Agent: CAGLE, Ryan W.; Womble Carlyle Sandridge & earlier application (Rule 4.17(iii)) Rice, LLP, Attn: Patent Docketing, P.O. Box 7037, Atlanta, GA 30357-0037 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, (54) Title: HEAT-INDUCED GRAFTING OF NONWOVENS FOR HIGH CAPACITY ION EXCHANGE SEPARATION UV grafted polyGMA Heat grafted polyGMA (A) (B) FIG. 7 ,—, (57) : The invention provides methods for preparing a polymer-grafted and functionalized nonwoven membrane adapted for 1-1 use in separation processes. The invention further provides so-formed membranes as well as improved separation methods utilizing IN oc the membranes. The polymer-grafted and functionalized nonwoven membranes are particularly formed utilizing thermal grafting. In In particular, an acrylate or methacrylate polymer can be grafted onto a nonwoven web comprising a plurality of polymeric fibers to Il form a plurality of polymer segments covalently attached to the polymeric fibers. Thermal grafting particularly can comprise using 0 ---. a thermal initiator and exposing the nonwoven web to heat to initiate polymerization of the acrylate or methacrylate monomer. The *t grafted polymeric fibers can be functionalized to attach at least one functional group adapted for binding to a target molecule to the 1-1 © polymer segments of the grafted polymeric fibers. ei C [Continued on next page] WO 2018/015871 Al MIDEDIM000101011EFIE0 IIMOIEHI1111111011111110110111111 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 amendments (Rule 48.2(h)) of receipt of