FULLY DENSE, FLUID TIGHT AND LOW FRICTION COATING SYSTEMS FOR DYNAMICALLY ENGAGING LOAD BEARING SURFACES FOR HIGH PRESSURE HIGH TEMPERATURE APPLICATIONS

摘要

INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 27 September 2018 (27.09.2018) WIPO I PCT O V SID o Ho inium iflo VII IE (10) International Publication Number WO 2018/175381 Al (51) International Patent Classification: C23C 28/00 (2006.01) C23C 16/26 (2006.01) C23C 4/06 (2016.01) C23C 14/02 (2006.01) C23C 4/18 (2006.01) C23C 14/06 (2006.01) C23C 16/02 (2006.01) (21) International Application Number: PCT/US2018/023262 (22) International Filing Date: 20 March 2018 (20.03.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 15/465,017 21 March 2017 (21.03.2017) US (71) Applicant: PRAXAIR S.T. TECHNOLOGY, INC. [US/US]; 441 Sackett Point Road, North Haven, CT 06473 (US). (72) Inventors: KLEYMAN, Ardy, S.; 13510 Spring Farms Drive, Cannel, IN 46032 (US). WANG, Daming; 4465 Bristal Lane, Carmel, IN 46033 (US). HUGHES, Kasey; 297 E. 550 N, Crawfordsville, IN 47933 (US). (74) Agent: DALAL, Nilay, S. et al.; Praxair, Inc., 10 Riverview Drive, Danbury, CT 06810 (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, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, (54) Title: FULLY DENSE, FLUID TIGHT AND LOW FRICTION COATING SYSTEMS FOR DYNAMICALLY ENGAGING LOAD BEARING SURFACES FOR HIGH PRESSURE HIGH TEMPERATURE APPLICATIONS 4 z lb Figure 1 (57) : A fully-dense, fluid tight, low friction coating system is described that is characterized by fluid impermeability and a reduced coefficient of friction. The coating system includes a fully dense, fluid tight underlying layer; and a low friction layer. Unlike conventional materials requiring a sealant, the coating systems of the present invention achieves better fluid tightness and maintains said fluid tightness along one or more sealing surfaces at higher service temperatures and service pressures than previously attainable. The constituents of the fully-dense, fluid tight, low friction coating system are physically and chemically compatible so as to not adversely impact lubricity, wear resistance and corrosion resistance during the service life of a component coated with the fully-dense, fluid tight, low friction coating system. [Continued on next page] WO 2018/175381 Al MIDEDIMOMBEFIDIOMOIMINEHOIIMEMOIMIE 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). Declarations under Rule 4.17: as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(H)) as to the applicant's entitlement to claim the priority of the earlier application (Rule 4.17(iii)) Published: — with international search report (Art. 21(3))