PROCESS FOR PRODUCING A FOAM FILM LAMINATE, THE PLASTICS MIXTURE USED THEREIN, THE FOAM FILM LAMINATE, AND USE THEREOF

• Main Authors: HÜLSEWEDE, Volker, MANI, Joseph
• Format: Patent
• Language: English; French; German
• Published: 23.10.2019
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Described is a process for producing a thermoformable foam film laminate comprising at least one compact decorative layer, comprising a varnish coat, and at least one foam layer joined to the decorative layer and made of extruded foamed plastic, the foam layer being produced by extrusion of the plastic in the presence of a solid chemical, inert liquid and/or inert gaseous blowing agent, provision of the varnished decorative layer to the resultant foam layer, optionally of the unvarnished compact decorative layer in a coextrusion; a crosslinking treatment with electron beams is performed before or after the varnished compact decorative layer is formed. This process is characterized in that the plastic used for the extrusion comprises a mixture of LLDPE, LDPE and a PP/EPR mixture with a density of 0.850 to 0.925, more particularly 0.860 to 0.890 g/cm3. The invention is also directed, moreover, to a plastics mixture employed in producing the foam film laminate by the above process, and to the particular possible uses of this foam film laminate.