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