compressing the fibrous material to a mat fleece whose entire surface is connected to {HEAD ~ the foamable adhesive} to form {TAIL ~ a composite mat} 
to form
compressing the fibrous material to a mat fleece whose entire surface is connected to { HEAD ~ the foamable adhesive } to form { TAIL ~ a composite mat }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL