CPC C08G 18/6208 (2013.01) [A61L 27/16 (2013.01); A61L 29/041 (2013.01); A61L 31/048 (2013.01); A61L 31/129 (2013.01); A61L 31/143 (2013.01); C08G 18/12 (2013.01); C08G 18/2865 (2013.01); C08G 18/4063 (2013.01); C08G 18/4808 (2013.01); C08G 18/4854 (2013.01); C08G 18/6204 (2013.01); C08G 18/7671 (2013.01); C08G 18/833 (2013.01)] | 15 Claims |
1. A polymeric material comprising:
a polyisobutylene-polyurethane block copolymer including:
soft segments including a polyisobutylene diol residue and least one of: a polyether diol residue, a polyester diol residue, and a polycarbonate diol residue;
hard segments including a diisocyanate residue; and
end groups bonded by urea bonds to a portion of the diisocyanate residue, the end groups including a residue of a mono-functional, primary amine having a C3 to C30 aliphatic straight chain, wherein the soft segments are present in the copolymer in an amount of about 40% to about 70% by weight of the copolymer, and the hard segments are present in the copolymer in an amount of about 30% to about 60% by weight of the copolymer.
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