公开(公告)号：US3616019A

公开(公告)日：1971-10-26

申请号：US3616019D

申请日：1968-11-13

Applicant: BASF AG

Inventor： MUELLER-TAMM HEINZ ,  MAHLING DIETER ,  FRIEDLINGSDORF HANS ,  HOFMANN ALFRED

IPC: B32B15/08 ,  B32B37/15 ,  C08J5/12 ,  B29C9/00

CPC classification number: B32B37/153 ,  B32B15/08 ,  C08J5/128 ,  C08J2323/06

Abstract: A process for the production of plane building components, comprising relatively thick inner ply of a thermoplastic and relatively thin outer plies of metal. In the process a board is prepared continuously from a polyethylene by means of an extruder at elevated temperature, the board thus obtained is continuously covered on each side first with a film of an ethylene polymer containing carboxyl groups by means of at least one pair of rollers and then with metal sheeting, the whole being made into a sandwich assembly under roller pressure and the plane building component formed being cooled to ambient temperature.