Patent SG-11201408177V-A (SG)
Title: Self-cleaning coatings and methods for making same
Inventor: CURRAN SEAMUS
IPC: C09D183/00
Filed: 2013-06-10
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 13 March 2014 (13.03.2014) WIPOIPCT (10) International Publication Number WO 2014/039130 A3 (51) International Patent Classification: C09D 5/00 (2006.01) C09D 183/00 (2006.01) C09D 7/12 (2006.01) (21) International Application Number: (22) International Filing Date: (25) Filing Language: (26) Publication Language: PCT/US2013/044913 10 June 2013 (10.06.2013) English (30) Priority Data: 61/657,152 61/667,203 8 June 2012 (08.06.2012) 2 July 2012 (02.07.2012) English US US (71) Applicant: UNIVERSITY OF HOUSTON [US/US]; 316 Ezekiel Cullen, Houston, TX 77204 (US). (72) Inventors: CURRAN, Seamus; 2415 Alberton Ave, Pear- land, TX 77584 (US). LIAO, Kang-Shyang; 2380 S. MacGregor Way, Apt. 205, Houston, TX 77021 (US). BARTON, Killian; 2825 Bellefontaine, Apt. 329a, Hous­ ton, TX 77025 (US). (74) Agent: CHEEMA, Sangeeta; Winstead PC, P.O. Box 131851, Dallas, TX 75313 (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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, 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, 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, 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)) — before the expiration of the time limit for amending the claims and to be republished in the event of receipt of amendments (Rule 48.2(h)) (88) Date of publication of the international search report: 15 May 2014 (54) Title: SELF-CLEANING COATINGS AND METHODS FOR MAKING SAME O Figure 1 m i-H 0\ m © — (57) Abstract: An embodiment of the present disclosure relates to a method of forming self-cleaning a coating on a substrate. Such a ^ method comprises of the step selecting a substrate. In an embodiment, the substrate may be a flat or a non-flat substrate. In related a embodiment, the substrate may comprise of metals, metal oxides, organic/inorganic composites containing metals/metal oxides and C^l plastic with silicon dioxide or metal oxides layer by sol-gel formation or other methods. In an embodiment, such method comprises a the step of cleaning the substrate. In another embodiment, the method comprises the step of roughening the substrate using an abras - ive. In an embodiment, roughening of the substrate create microscopic tortuous grooves. Another embodiment of the method com- SE prises coating the roughened surface with at least one hydrophobic chemical agent.