Heating device coated with a self-cleaning coating
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H05B-003/16
B01J-033/00
출원번호
US-0536050
(2003-11-20)
등록번호
US-7339142
(2008-03-04)
우선권정보
FR-02 15360(2002-12-05)
국제출원번호
PCT/FR03/003429
(2003-11-20)
§371/§102 date
20050523
(20050523)
국제공개번호
WO04/061371
(2004-07-22)
발명자
/ 주소
Pessayre,St��phanie
Boulud,Henry
출원인 / 주소
SEB S.A.
대리인 / 주소
Browby and Neimark, PLLC
인용정보
피인용 횟수 :
6인용 특허 :
3
초록▼
The invention relates to a heating device (1) comprising a metallic substrate (2) whose at least one part is coated with a self-cleaning coating. The inventive coating consists of an external layer (4) contacting ambient air and comprising at least one type of oxidation catalyst selected from platin
The invention relates to a heating device (1) comprising a metallic substrate (2) whose at least one part is coated with a self-cleaning coating. The inventive coating consists of an external layer (4) contacting ambient air and comprising at least one type of oxidation catalyst selected from platinoid oxides, at least one internal layer (3) which is arranged between the metallic substrate and the external layer and comprises at least one type of oxidation catalyst selected from transition elements oxides of 1b group. The inventive heating device can be embodied, for instance in the form of an iron soleplate consisting of a heating base (6) provided with heating elements (7) or a cooking appliance. Said metallic substrate can be covered with an intermediary enamel layer (5). A method for coating the metallic substrate of a heating device with said coating is also disclosed.
대표청구항▼
The invention claimed is: 1. Heating device (1) comprising a metal support (2) of which at least a part is covered with a self-cleaning coating, characterized in that the coating comprises: a��) an external layer (4), in contact with the ambient air, comprising at least one oxidation catalyst chose
The invention claimed is: 1. Heating device (1) comprising a metal support (2) of which at least a part is covered with a self-cleaning coating, characterized in that the coating comprises: a��) an external layer (4), in contact with the ambient air, comprising at least one oxidation catalyst chosen among the oxides of platinoids, b��) at least one internal layer (3), located between the metal support (2) and the external layer (4), comprising at least one oxidation catalyst chosen among oxides of the transition elements of Group 1b. 2. Device according to claim 1, characterized in that the oxidation catalyst of the external layer (4) is selected among palladium oxides, platinum oxides and their mixtures. 3. Device according to claim 1, characterized in that the oxidation catalyst of the internal layer (3) is selected among copper oxides, silver oxides and their mixtures. 4. Device according to claim 1, characterized in that the external layer (4) comprises as oxidation catalyst a palladium oxide and the internal layer (3) comprises as oxidation catalyst a silver oxide. 5. Device according to claim 4, characterized in that the external layer comprises a mixture of palladium oxide and silver oxide. 6. Device according to claim 1, characterized in that the thickness of the external layer (4), measured according to the RBS method, extends from 10 to 500 nanometers, and more preferably extends from 20 nanometers to 120 nanometers. 7. Device according to claim 1, characterized in that the thickness of the internal layer (3), measured according to the RBS method, extends from 20 nanometers to 50 nanometers. 8. Device according to claim 1, characterized in that it further comprises an intermediate layer (5) located between the metal support (2) and the internal layer (3) of the coating constituting a support that is catalytically inert with regard to oxidation selected among aluminum alloys, enamel, polytetrafluoroethylene and their mixtures. 9. Device according to claim 8, characterized in that the intermediate layer (5) located between the metal support (2) and the internal layer (3) of the coating is of enamel. 10. Device according to claim 1, characterized in that said device is in the shape of a pressing iron soleplate comprising an ironing surface and that the coating covers the ironing surface. 11. Device according to claim 1, characterized in that said device is in the shape of a cooking device comprising walls likely to come in contact with organic stains and the coating covers these walls. 12. Process for producing the heating device (1) of claim 1 said process comprising the following steps: i) heating the surface of the metal support to be covered in an oven at around 400�� C., ii) placing the surface of the metal support to be covered under infra-red at a temperature of 400�� C. to 600�� C. for a few seconds, iii) spraying a solution of an oxidation catalyst precursor chosen among oxides of the transition elements of Group 1b on the surface of the metal support to be covered to obtain the internal layer (3), iv) again heating the surface of the metal support to be covered, with the internal layer, in an oven at around 400�� C., v) placing the surface of the metal support to be covered, with the internal layer, under infra-red at a temperature of 400�� C. to 600�� C. for a few seconds, vi) spraying a solution of an oxidation catalyst precursor chosen among oxides of platinoids on the internal layer to obtain the external layer (4), and vii) reheating the surface of the metal support covered with the internal and external layers under infra-red for a few minutes.
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이 특허에 인용된 특허 (3)
Denny Patrick John (Norton EN) Robertson Robert (Warrington EN), Catalytic coating composition and a method for making a coated surface for an oven.
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