Patent SG-11201900728S-A (SG)
Title: Composition, system, and method for treating water systems
Inventor: DENVIR ADRIAN
IPC: C02F11/14
Filed: 2016-10-05
Abstract: I40 36 34 12 38 32 28 14 /„-- 26 22 10 30 20 24 FIG. 1 (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 22 February 2018 (22.02.2018) o mon I 10 o III 11110011111 H MOON 011 (10) International Publication Number WO 2018/034683 Al WIPO I PCT (51) International Patent Classification: AO1N 25/00 (2006.01) CO2F 1/00 (2006.01) A01N 37/16 (2006.01) CO2F 5/08 (2006.01) BO8B 7/04 (2006.01) CO2F 11/14 (2006.01) (21) International Application Number: PCT/US2016/055546 (22) International Filing Date: 05 October 2016 (05.10.2016) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 15/237,052 15 August 2016 (15.08.2016) US (71) Applicant: NCH CORPORATION [US/US]; 2727 Chemsearch Blvd., Irving, TX 75062 (US). (72) Inventors: DENVIR, Adrian; 800 Firestone Lane, Richardson, TX 75080 (US). EDFORD, James Grego- ry; 2903 Willow Park St., Richland Hills, TX 76118 (US). DELEGARD, Angela L.; 1508 Angelina Bend Dr., Den- ton, TX 76205 (US). BOYETTE, Scott M.; 2132 Shumard Oak Ln., Irving, TX 75063 (US). (74) Agent: BARNES, Robin L. et al.; Ross Barnes LLP, 801 E. Campbell Rd., Ste. 390, Richardson, TX 75081 (US). (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, 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, (54) Title: COMPOSITION, SYSTEM, AND METHOD FOR TREATING WATER SYSTEMS (57) : A composition for treating a water system or membrane fluid system, such as a reverse osmosis system, to remove scale, microorganisms and biofilm, and corrosion by-products. The composition comprises chelating agents and a surfactant. The composition may be a solid dissolved by water or solvent in the system being treated or may be a pre-mixed foam or aerosol. A method for using such a treatment composition comprises contacting the treatment composition with substantially all parts of the water system and draining the treatment composition from the system before resuming normal operations. For certain systems, the method also comprises draining some existing water in the water system to remove prior treatment compositions and filling or rinsing the system with fresh water prior to adding the treatment composition. [Continued on next page] WO 2018/034683 Al MIDEDIMOMOIDEIREIDIONIMMIDEMOINVOIMIE 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)) — with amended claims (Art. 19(1))