公开(公告)号：US3594250A

公开(公告)日：1971-07-20

申请号：US3594250D

申请日：1968-09-06

Applicant: BASF AG

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

IPC: B32B15/08 ,  B32B27/00

CPC classification number: B32B27/00 ,  B32B15/08

Abstract: A PROCESS FOR THE PRODUCTION OF PLANE BUILDING COMPONENTS WHICH ARE COMPOSED OF A RELATIVELY THICK INNER PLY OF A THERMOPLASTIC AND RELATIVELY THIN OUTER PLIES OF METAL. IN THE PROCESS A BOARD IS FIRST MADE CONTINUOUSLY FROM A POLYETHYLENE BY MEANS OF A SCREW EXTRUDER AT ELEVATED TEMPERATURE THEN THIS BOARD IS COATED ON BOTH SIDES BY MEANS OF A PAIR OF ROLLERS CONTINUOUSLY WITH A FILM OF A SPECIAL TERPOLYMER AND THEREAFTER WITH A SHEET OF METAL. THE WHOLE IS MADE INTO A SANDWICH ASSEMBLY BY THE PRESSURE OF THE ROLLERS AND THEN BROUGHT TO AMBIENT TEMPERATURE.