Sgl Carbon Ag

Manfred Jung

Oswin &Ouml;ttinger

Silvia Mechen

A flat semi-finished product includes a filled fluoroplastics substrate in the form of a sheet, which is coated at least partially on at least one surface with a soft, thin coating of fluoroplastics. The substrate material of the sheet has a Shore-D hardness of at least 65 and the average layer thickness of the thin sheet coating is at most 20 &mgr;m. A component, in particular a flat gasket, is made from the semi-finished product. A process for the production thereof is also provided.

Flat semi-finished product, component made therefrom and process for the production thereof

A metal-reinforced layered composite includes at least one intermediate metal layer. The intermediate metal layer includes at least two at least partially overlapping metal foils which are joined to one another in an overlap region by at least one weld seam. There are no leakage channels and/or no continuous leakage channels at the weld seam of the metal foils in the longitudinal extent of the overlap region. At least one of the weld seams may have a course which at least at one point has a direction component at right angles to the longitudinal extent of the overlap region of the metal foils. The intermediate metal layer may be provided with at least one passage in the overlap region of the metal foils. A gasket, a gasket sheet, a metal layer and a method of manufacturing a layered composite are also provided.

Growing community of inventors

Ellgau, Germany

Manfred Jung