Global Patent Index - EP 0839216 B1

EP 0839216 B1 2000-03-08 - PROCESS FOR PRODUCING A NON-STICK COATING AND OBJECTS PROVIDED WITH SUCH A COATING

Title (en)

PROCESS FOR PRODUCING A NON-STICK COATING AND OBJECTS PROVIDED WITH SUCH A COATING

Title (de)

VERFAHREN ZUR ERZEUGUNG EINER ANTIHAFTBESCHICHTUNG SOWIE MIT EINER SOLCHEN VERSEHENE GEGENSTÄNDE

Title (fr)

PROCEDE DE PRODUCTION D'UN REVETEMENT ANTI-ADHESIF ET OBJETS POURVUS D'UN TEL REVETEMENT

Publication

EP 0839216 B1 (DE)

Application

EP 95938434 A

Priority

EP 9504390 W

Abstract (en)

[origin: WO9717478A1] The invention relates to a process for producing a non-stick coating on the surface of a relatively soft metal substrate such as a substrate of aluminium or aluminium alloy , magnesium or magnesium alloy and/or copper or copper alloy. The metal surface is roughed and then provided with a single-layer or multi-layer coating of a hard material such as a hard anodisation layer or a thermal sprayed layer and then provided with a single-layer or multi-layer non-stick coating, e.g. of fluorocarbon resin such as polytetrafluoroethylene (PTFE), tetrafluoroethylene-hexafluoropropylene copolymer (FEP) or tetrafluoroethylene-ethylene copolymer (ETFE). The purpose of the proposed process is in particular to coat the inside of a pan, the surface roughness of the metal surface and/or hard material layer being defined by the following parameters: Ra is between 8 and 30 microns, and or Rz is between 40 and 180 microns, and or Ry is between 50 and 250 microns, and or Pc (1,3) is between 20 and 45 1/cm, and/or tp [10 %] is between 1 and 3 % and or tp [20 %] is between 1 and 10 %.

IPC 1-7 (main, further and additional classification)

C23C 4/02; B05D 5/08

IPC 8 full level (invention and additional information)

B05D 5/08 (2006.01); C23C 4/02 (2006.01)

CPC (invention and additional information)

C23C 4/02 (2013.01); B05D 5/086 (2013.01)

Designated contracting state (EPC)

AT DE DK FR IT

EPO simple patent family

WO 9717478 A1 19970515; AT 190362 T 20000315; DE 59507977 D1 20000413; DK 0839216 T3 20000821; EP 0839216 A1 19980506; EP 0839216 B1 20000308

INPADOC legal status


2009-08-31 [PG25 IT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

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2007-08-03 [REG FR ST] NOTIFICATION OF LAPSE

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2007-07-02 [REG DK EBP] PATENT LAPSED

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2001-02-21 [26N] NO OPPOSITION FILED

2000-08-21 [REG DK T3] TRANSLATION OF EP PATENT

2000-07-13 [ET] FR: TRANSLATION FILED

2000-05-26 [ITF] IT: TRANSLATION FOR A EP PATENT FILED

- Owner name: BUGNION S.P.A.

2000-04-13 [REF] CORRESPONDS TO:

- Document: DE 59507977 20000413

2000-03-08 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): AT DE DK FR IT

2000-03-08 [REF] CORRESPONDS TO:

- Document: AT 190362 T 20000315

1999-04-21 [17Q] FIRST EXAMINATION REPORT

- Effective date: 19990303

1998-05-06 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19980124

1998-05-06 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT DE DK FR IT