A COMPOSITE PRODUCT COMPRISING A RIGID SUPPORT TO WHICH FOAM MATERIAL IS MOULDED AND A METHOD OF MAKING THE SAME

摘要

A cellular foam product having a composite foam supporting substrate and a method for making same. The composite substrate includes a load supporting structure to which a continuous barrier film is bonded. The barrier film seals openings in the structure through which gas pressure loss and foam leakage may occur during subsequent foam generating reaction processes. The substrate is formed by coating desired foam supporting surfaces of the supporting structure with an adhesive and vacuum forming a preheated thin flexible plastic film to the supporting structure to bond the film to the foam supporting surfaces.