ban or arkformigt semi-finished products, polymeric skumkompositmaterial and record, as well as for the production thereof

摘要

A web-like or sheet-like semi-finished product capable of forming a polymeric foam composite material by heat treatment, which semi-finished product is formed by a web-like or sheet-like fibrous material and a mixture having curable resin and unexpanded thermoplastic particles of at least two different qualities with mutually different expansion temperature introduced into the fibrous material are provided, in which thermoplastic particles of at least one of these qualities remain unexpanded in the semi-finished product. A polymeric foam composite material is also formed by such a semi-finished product. Furthermore, methods for producing such a semi-finished product and such a polymeric foam composite material are provided.