MULTI-LAYER CO-EXTRUSION FILM FOR VEHICLE INTERIOR MATERIALS

摘要

The present invention relates to a co-extrusion film bonded with a polyurethane-based foaming sheet and a vehicle interior base material. Even though a tier layer is not included, there is no problem with co-extrusion, and the same can exhibit the same or greater adhesive power in terms of adhesive strength with an interior material compared to a co-extrusion film of four or more layers. The multi-layer co-extrusion film for a vehicle interior material of the present invention comprises: a polyamide layer; a polyolefin support layer laminated on one surface of the polyamide layer; and an adhesive polyolefin layer adhered on the other surface of the polyamide layer. In the adhesive polyolefin layer, 10-80 wt% of an acrylic copolymer or a maleic acid graft copolymer is compounded, and peeling strength between the polyamide layer and the adhesive polyolefin layer is 1 N/2.5 cm.