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Pub. No.: WO/2010/123646 International Application No.: PCT/US2010/028468
Publication Date: 28.10.2010 International Filing Date: 24.03.2010
IPC:
C08L 71/00 (2006.01) ,F16J 15/32 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
71
Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
J
PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
15
Sealings
16
between relatively-moving surfaces
32
with elastic sealing lip
Applicants: GHASIPOOR, Farshard[GB/US]; US (UsOnly)
FANG, Biao[CN/US]; US (UsOnly)
RUGGIERO, Eric John[US/US]; US (UsOnly)
KOTHNUR, Vasnath Srinivasa[IN/US]; US (UsOnly)
GENERAL ELECTRIC COMPANY[US/US]; 1 River Road Schenectady, NY 12345, US (AllExceptUS)
Inventors: GHASIPOOR, Farshard; US
FANG, Biao; US
RUGGIERO, Eric John; US
KOTHNUR, Vasnath Srinivasa; US
Agent: PHILLIPS, Roger C.; General Electric Company Global Patent Operation 2 Corporate Drive, Suite 648 Shelton, CT 06484, US
Priority Data:
12/429,25424.04.2009US
Title (EN) NON-METALLIC BRUSH SEAL
(FR) JOINT BROSSE NON MÉTALLIQUE
Abstract:
(EN) The invention provides, in one aspect, a brush seal comprising brush seal bristles made up of component brush seal filaments. The component brush seal filaments comprise a polyether ketone comprising structural units derived from a diaryl ketone and a diphenolic compound and having a glass transition temperature in excess of 100°C. In a particular embodiment, the component brush seal filaments comprise PEEK. The novel brush seals provided by the present invention present a number of advantages over conventional non-metallic brush seals comprising KEVLAR filaments, such as enhanced friction characteristics and greater stability to fluid lubricants comprising groups reactive with the amide moieties present in aramid filaments such as KEVLAR.
(FR) Sous un de ses aspects, l'invention propose un joint brosse comprenant des poils de joint brosse composés de filaments constitutifs de joint brosse. Les filaments constitutifs de joint brosse comprennent une polyéthercétone comprenant des unités structurales issues d'une diarylcétone et d'un composé diphénolique ayant une température de transition vitreuse dépassant 100°C. Dans un mode de réalisation particulier, les filaments constitutifs de joint brosse comprennent de la PEEK. Les nouveaux joints brosse fournis par la présente invention présentent un nombre d'avantages sur les joints brosse non métalliques classiques comprenant des filaments de KEVLAR, tels que des caractéristiques de frottement améliorées et une stabilité augmentée aux lubrifiants fluides comprenant des groupes capables de réagir avec les fractions amides présentes dans les filaments d'aramide tels que le KEVLAR.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, 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, KM, 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, PE, PG, PH, PL, PT, RO, RS, RU, 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
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (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, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)