Global Patent Index - EP 1567807 B1

EP 1567807 B1 20071031 - HEATING DEVICE COATED WITH A SELF-CLEANING COATING

Title (en)

HEATING DEVICE COATED WITH A SELF-CLEANING COATING

Title (de)

MIT EINER SELBSTREINIGENDEN BESCHICHTUNG BESCHICHTETES HEIZGERÄT

Title (fr)

APPAREIL CHAUFFANT RECOUVERT D UN REVETEMENT AUTONETTOYANT

Publication

EP 1567807 B1 20071031 (FR)

Application

EP 03786028 A 20031120

Priority

  • FR 0303429 W 20031120
  • FR 0215360 A 20021205

Abstract (en)

[origin: FR2848290A1] A heating device has metal walls which are at least partly covered with a self-cleaning coating having an outer layer in contact with ambient air, made of at least one oxidizing catalyst chosen from among the platinum oxides, and at least one inner layer (3) between the metallic support and the outer layer made of an oxidation catalyst chosen from the oxides of Group 1b transition elements. The catalyst in the outer layer is an oxide of palladium or platinum or a mixture of these. The catalyst in the inner layer is an oxide of copper, silver or a mixture of these. In particular, the outer layer is a palladium oxide and the inner layer a silver oxide, or the outer layer is a mixture of palladium oxide and silver oxide. The thickness of the outer layer, measured using the RBS method, is 10-500 nm, preferably 20-120 nm. The thickness of the inner layer, measured using the RBS method, is 20-50 nm. An additional intermediate layer (5) can be placed between the metallic support and the inner layer, forming a catalytically inert support made of aluminum, enamel, polytetrafluoroethylene or a mixture of these. The intermediate layer is made of enamel. The device is in the shape of a cooking device with walls which are prone to be in contact with organic dirt and the coating covers these walls. An Independent claim is included for coating the metallic support of a heating device with a self-cleaning coating as described above, by (i) heating the surface of the metallic support to 400degreesC, (ii) placing it in contact under infrared at 400-600degreesC for several seconds, (iii) spraying a solution of a catalytic precursor to form the inner layer, (iv) reheating the surface in an oven to ca. 400degreesC, (v) placing it again under infrared at 400-600degreesC for several seconds, spraying a solution of a catalytic precursor to form the outer layer, and (vii) reheat the metallic support with infrared for several minutes.

IPC 8 full level

F24C 15/00 (2006.01); C23C 26/00 (2006.01); C23C 28/04 (2006.01); D06F 75/38 (2006.01); F24C 14/00 (2006.01)

CPC (source: EP)

C23C 26/00 (2013.01); C23C 28/042 (2013.01); D06F 75/38 (2013.01); F24C 15/005 (2013.01)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

DOCDB simple family (publication)

FR 2848290 A1 20040611; FR 2848290 B1 20050107; AT 377176 T 20071115; AU 2003295034 A1 20040729; AU 2003295034 B2 20081211; BR 0317056 A 20051025; BR 0317056 B1 20140304; CA 2508750 A1 20040722; CA 2508750 C 20110222; CN 1316202 C 20070516; CN 1717565 A 20060104; DE 60317233 D1 20071213; DE 60317233 T2 20080807; EP 1567807 A1 20050831; EP 1567807 B1 20071031; ES 2295676 T3 20080416; HK 1081638 A1 20060519; JP 2006513747 A 20060427; JP 4358749 B2 20091104; MX PA05005918 A 20050826; PT 1567807 E 20080125; RU 2005121142 A 20060120; RU 2323287 C2 20080427; US 2006151474 A1 20060713; US 7339142 B2 20080304; WO 2004061371 A1 20040722

DOCDB simple family (application)

FR 0215360 A 20021205; AT 03786028 T 20031120; AU 2003295034 A 20031120; BR 0317056 A 20031120; CA 2508750 A 20031120; CN 200380104231 A 20031120; DE 60317233 T 20031120; EP 03786028 A 20031120; ES 03786028 T 20031120; FR 0303429 W 20031120; HK 06101896 A 20060215; JP 2004564263 A 20031120; MX PA05005918 A 20031120; PT 03786028 T 20031120; RU 2005121142 A 20031120; US 53605005 A 20050523