The OSCL 35 is preferably formed of a polymeric material, e.g., an elastomer such as {HEAD ~ a polyurethane} or other materials well noted in the published literature, and may comprise a material having one or more phases, e.g., a foam or a dispersion of {TAIL ~ one solid phase} in another 
The OSCL 35 is preferably formed of a polymeric material , e.g. , an elastomer such as { HEAD ~ a polyurethane } or other materials well noted in the published literature , and may comprise a material having one or more phases , e.g. , a foam or a dispersion of { TAIL ~ one solid phase } in another
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