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1. (WO1999013133) A PROCEDURE FOR ELECTROCHEMICAL POLISHING OF AN ALUMINIUM SUBSTRATE TO OBTAIN CERTAIN TOPOGRAPHICAL PROPERTIES THEREOF
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1999/013133    International Application No.:    PCT/NO1998/000261
Publication Date: 18.03.1999 International Filing Date: 28.08.1998
Chapter 2 Demand Filed:    31.03.1999    
IPC:
C23F 3/03 (2006.01), C25F 3/20 (2006.01)
Applicants: NORSK HYDRO ASA [NO/NO]; N-0240 Oslo (NO) (AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BY, CA, CF, CG, CH, CI, CM, CN, CU, CY, CZ, DE, DK, EE, ES, FI, FR, GA, GB, GE, GH, GM, GN, GR, GW, HR, HU, ID, IE, IL, IS, IT, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MC, MD, MG, MK, ML, MN, MR, MW, MX, NE, NL, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, SN, SZ, TD, TG, TJ, TM, TR, TT, UA, UG, UZ, VN, YU, ZW only).
GLAMOX FABRIKKER AS [NO/NO]; Fannestrandveien 62 N-6400 Molde (NO) (AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BY, CA, CF, CG, CH, CI, CM, CN, CU, CY, CZ, DE, DK, EE, ES, FI, FR, GA, GB, GE, GH, GM, GN, GR, GW, HR, HU, ID, IE, IL, IS, IT, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MC, MD, MG, MK, ML, MN, MR, MW, MX, NE, NL, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, SN, SZ, TD, TG, TJ, TM, TR, TT, UA, UG, UZ, VN, YU, ZW only).
LEIN, John, Erik [NO/NO]; (NO) (For US Only).
SPOOREN, Cornelis [NL/NO]; (NO) (For US Only).
MÅRDALEN, Jostein [NO/NO]; (NO) (For US Only).
SØRAKER, Jan, Morten [NO/NO]; (NO) (For US Only).
HALLENSTVET, Merete [NO/NO]; (NO) (For US Only)
Inventors: LEIN, John, Erik; (NO).
SPOOREN, Cornelis; (NO).
MÅRDALEN, Jostein; (NO).
SØRAKER, Jan, Morten; (NO).
HALLENSTVET, Merete; (NO)
Agent: ANDERSON, Elin; Norsk Hydro ASA N-0240 Oslo (NO)
Priority Data:
974172 09.09.1997 NO
Title (EN) A PROCEDURE FOR ELECTROCHEMICAL POLISHING OF AN ALUMINIUM SUBSTRATE TO OBTAIN CERTAIN TOPOGRAPHICAL PROPERTIES THEREOF
(FR) TECHNIQUE DE POLISSAGE D'UN SUBSTRAT EN ALUMINIUM AUX FINS DE L'OBTENTION DE CERTAINES CARACTERISTIQUES TOPOGRAPHIQUES
Abstract: front page image
(EN)The present invention concerns the removal/reduction of the directionality or anisotropy of a surface and the formation of certain topographical properties of the same on a substrate material consisting of aluminium or an aluminium alloy. The procedure comprises the following process stages: chemical etching, preferably using phosphoric acid, and electrochemical polishing, preferably using phosphoric acid. The present invention has made it possible to produce surfaces with good optical qualities on substrate materials of inexpensive Al alloys which may contain recycled aluminium.
(FR)Cette invention a trait à l'enlèvement/réduction de l'orientation ou de l'anisotropie d'une surface ainsi qu'à la constitution sur cette surface de certaines propriétés topographiques et ce, sur un substrat en aluminium ou en alliage léger. Cette technique comporte les opérations de traitement suivantes: attaque chimique, de préférence à l'aide d'acide phosphorique, et polissage électrochimique, de préférence à l'acide phosphorique. Cette invention permet la production de surfaces dotées de bonnes qualités optiques et ce, sur des matériaux substrat en alliage léger peu coûteux et pouvant renfermer de l'aluminium recyclé.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, GM, HR, HU, ID, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, US, UZ, VN, YU, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)