An anchor coat layer may optionally be provided between the heat buffer layer and {HEAD ~ the extruded coating layer} of {TAIL ~ a thermoadhesive resin} so that the adhesion strength between these layers can be improved 
An anchor coat layer may optionally be provided between the heat buffer layer and { HEAD ~ the extruded coating layer } of { TAIL ~ a thermoadhesive resin } so that the adhesion strength between these layers can be improved
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH