SA polymer; the poly is elected form the group consisting of Hytrel® 4056 polymer and Riteflex® polymer; {TAIL ~ the elastomer} is made from {HEAD ~ polyolefins}, and is Engage® elastomers, the elastomer is made from a poly, and is Estane® elastomers, the elastomer is made from a poly, and is Estane® elastomers, the elastomer is made from poly, and is Kraton® elastomers; and the poly polymer is KynarFlex® 2800 polymer 
SA polymer ; the poly is elected form the group consisting of Hytrel ® 4056 polymer and Riteflex ® polymer ; { TAIL ~ the elastomer } is made from { HEAD ~ polyolefins } , and is Engage ® elastomers , the elastomer is made from a poly , and is Estane ® elastomers , the elastomer is made from a poly , and is Estane ® elastomers , the elastomer is made from poly , and is Kraton ® elastomers ; and the poly polymer is KynarFlex ® 2800 polymer
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