The first polymer contains a polymer having at least 70% α olefin units and is characterized by a melting temperature lower than {HEAD ~ the melting temperature} of the exterior surface portion of {TAIL ~ the core} 
The first polymer contains a polymer having at least 70 % α olefin units and is characterized by a melting temperature lower than { HEAD ~ the melting temperature } of the exterior surface portion of { TAIL ~ the core }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL