The invention relates to a method for creating a motor vehicle seat cushion. The inventive method provides for a cover having a format of a complex comprising a layer of covering material and a sublayer of elastically compressible foam, and for arranging on the sublayer a film based on thermoplastic polyurethane. The film has a melting point and a melt mass-flow index that breaks down under the action of the heat released during the formation of the foam. The film is provided with a reinforcing thin-film to form a two-layer barrier against the penetration of foam. The reinforcing thin-film is based on a thermoplastic polyurethane with a melting point higher than that of the film and has a melt mass-flow index lower than that of the film, to have greater strength than the film so that the reinforcing thin-film breakdown under the action of heat is delayed.
PROCESS FOR PRODUCING MOTOR VEHICLE SEAT CUSHIONING
2022-01-06
Patent
Electronic Resource
English