Patent SG-11201808794Q-A (SG)
Title: System for nickel-free zinc phosphate pretreatment
Inventor: MCMILLEN MARK W
IPC: C23C22/78
Filed: 2017-04-25
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property 111111101111 0 DOI 010111110101111 0 111 011111011101110111101H11111111 MI 0111111 Organization International Bureau (10) International Publication Number (43) International Publication Date ......0\" WO 2017/189627 Al 02 November 2017 (02.11.2017) W I PO I PCT (51) International Patent Classification: TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, C23C 22/1 2 (2006.01) C2 3C 22/78 (2006.01) KM, ML, MR, NE, SN, TD, TG). (21) International Application Number: PCT/US2017/029487 Declarations under Rule 4.17: — as to applicant's entitlement to apply for and be granted a (22) International Filing Date: patent (Rule 4.17(ii)) 25 April 2017 (25.04.2017) — as to the applicant's entitlement to claim the priority of the earlier application (Rule 4.17(iii)) (25) Filing Language: English (26) Publication Language: English Published: — with international search report (Art. 2 I (3)) (30) Priority Data: 15/137,014 25 April 2016 (25.04.2016) US (71) Applicant: PPG INDUSTRIES OHIO, INC. [US/US]; 3800 West 143rd Street, Cleveland, Ohio 44111 (US). (72) Inventors: MCMILLEN, Mark W.; 447 Fisher Road, Cabot, Pennsylvania 16023 (US). LEMON, Steven J.; 275 Fairview Drive, Lower Burrell, Pennsylvania 15068 (US). VOTRUBA-DRZAL, Peter L.; 119 Yorkshire Dri- _ ve, Pittsburgh, Pennsylvania 15208 (US). KARABIN, Richard F.; 107 Karabin Lane, Ruffs Dale, Pennsylvania — 15679 (US). = Agent: MEYERS, Diane R. et al.; PPG Industries, Inc., One PPG Place, 39th Floor, Pittsburgh, Pennsylvania 15272 = (74) (US). = 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, (81) = _ 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. Designated States (unless otherwise indicated, for every (84) = 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, 1-1 IN N (54) Title: SYSTEM FOR NICKEL-FREE ZINC PHOSPHATE PRETREATMENT 01 (57) : Disclosed is a substrate pretreatment system, comprising (a) an activating rinse for treating at least a portion of a c)1: 1-1 substrate comprising a dispersion of metal phosphate particles having a D90 particle size of no greater than 10 p.m, wherein the metal ---- phosphate comprises divalent or trivalent metals or combinations thereof; and (b) a pretreatment composition for treating at least a IN portion of the substrate treated with the activating rinse, comprising zinc ions and phosphate ions, wherein the pretreatment composition 0 is substantially free of nickel. Methods of treating a substrate with the substrate pretreatment system also are disclosed. Substrates N treated with the substrate pretreatment system also are disclosed. C