Process for laminating a foam plastics material with a sheet-like material

Abstract

Abstract PREVIOUS LAMINATES OF FOAM PLASTICS MATERIALS WITH A SHEET-LIKE MATERIAL HAVE BEEN PREPARED BY FLAME LAMINATING WITH THE USE OF A COSTLY POLYURETHANE HOT-MELT ADHESIVE WITH UNSATISFACTORY ADHESIVE PROPERTIES. LAMINATES HAVING IMPROVED PROPERTIES CAN BE PREPARED WITH THE USE OF AN INEXPENSIVE MELT OR THERMOPLASTIC ADHESIVE FILM BY A PROCESS COMPRISING SOFTENING A SURFACE OF THE FOAM MATERIAL BY APPLYING THERETO AN AMOUNT OF HEAT SUCH THAT AN INSUFFICIENT AMOUNT IF MELTED OR DECOMPOSITION PRODUCTS ARE OBTAINED TO ENABLE A LASTING ADHESIVE BOND TO BE MADE BETWEEN THE TWO MATERIALS, UNITING THE SOFTENED FOAM MATERIAL SURFACE WITH A FILM OF MELT ADHESIVE, MELTING THE FILM AND CONTACTING THE SHEET-LIKE MATERIAL WITH THE MELT TO FORM AN INTEGRAL LINED FOAM MATERIAL. THE LAMINATE CAN BE MADE POROMERIC OR ABLE TO "BREATHE" BY APPROPRIATELY SELECTING THE THICKNESS OF THE THERMOPLASTIC ADHESIVE FILM.

Inventors

• 👤 H Remmert

Bibliographic Details