Disclosed herein are {HEAD ~ barrier articles} of polyurethane blends or alloys that limit {TAIL ~ the permeability} of gases there through, particularly as used in inflatable sports articles and more particularly as used in soccer balls 
limit
Disclosed herein are { HEAD ~ barrier articles } of polyurethane blends or alloys that limit { TAIL ~ the permeability } of gases there through , particularly as used in inflatable sports articles and more particularly as used in soccer balls
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH