Method For Assembling An Anti-Adhesive Film Onto A Metal Substrate By Hot Stamping

Abstract

A coated cooking element includes the following steps: i. Providing a metal substrate having a face, to be coated with a film; ii. Providing the film, the film having a layer to be brought in contact with the face of the metal substrate, the layer comprising: 50-100% by weight of polytetrafluoroethylene (PTFE) 0-50% by weight of one or more thermoplastic polymers different from PTFE the percentages being relative to the total weight of PTFE and said one or more thermoplastic polymer(s); iii. Heating the metal substrate; iv. Positioning the film such that layer faces the face of the metal substrate heated in step iii.; v. Assembling the metal substrate and the film by hot stamping, the metal substrate being at a temperature between 350° C. and 550° C. at the time of assembly; and such that the film is heated essentially by conduction when brought in contact with the metal substrate at the time of assembly in step (v).

Dependencies are inferred from the claim text.