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.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Process for producing motor vehicle seat cushioning


    Beteiligte:

    Erscheinungsdatum :

    12.09.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B29L INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES , Index-Schema für besondere Gegenstände in Verbindung mit Unterklasse B29C / B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B29K Index-Schema für Formmassen oder Materialien für Verstärkungen, Füllstoffe oder vorgeformte Teile, z.B. Einlagen in Verbindung mit den Unterklassen B29B, B29C oder B29D , INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS



    PROCESS FOR PRODUCING MOTOR VEHICLE SEAT CUSHIONING

    GEORGES LAURENT | Europäisches Patentamt | 2022

    Freier Zugriff

    MOTOR VEHICLE SEAT CUSHIONING

    SANCHEZ SANTIAGO / GEORGES LAURENT / PUIG LLIUS | Europäisches Patentamt | 2019

    Freier Zugriff

    Cushioning seat device and vehicle

    ZHANG QIANG | Europäisches Patentamt | 2023

    Freier Zugriff

    CUSHIONING-MATERIAL STRUCTURE FOR VEHICLE SEAT

    CHIBA TOMOHISA / KIYA KATSUHIRO / UEYAMA YOSHINORI | Europäisches Patentamt | 2018

    Freier Zugriff

    CUSHIONING-MATERIAL STRUCTURE FOR VEHICLE SEAT

    CHIBA TOMOHISA / KIYA KATSUHIRO / UEYAMA YOSHINORI | Europäisches Patentamt | 2015

    Freier Zugriff