Planar composite material
AssigneeQuadrant Plastic Composites AG
InventorBurak Baser
Life of this patent
Estimating the term…
Abstract
A planar composite material comprises an UD fiber layer A made of discrete reinforcing fiber rovings and a fiber nonwoven layer B made of a thermoplastic nonwoven which may contain reinforcing fibers, wherein the layers A and B are needled to each other.
Claims23
A continuous method for producing a moldable fiber-reinforced thermoplastic matrix composite material having an areal weight of at least 400 g/m2, comprising arranging discrete UD reinforcing fiber rovings parallel to each other on a circulating endless band to constitute an unconsolidated layer A, laying a fiber nonwoven layer B comprising from 30 to 100% by weight thermoplastic matrix fibers based on the weight of nonwoven layer B thereon, and subsequently needling layers A and B to each other, wherein the UD reinforcing fibers have a melting point which is at least 50° C. higher than the melting point of the thermoplastic matrix fibers.
Dependencies are inferred from the claim text.