Patent ID: 7101956

Claim:
A medical device comprising a polymer comprising a urethane group, a urea group, or combinations thereof, wherein the polymer comprises a soft segment that is prepared from an isocyanate-containing compound and a compound of the formula: Y—R 5 —(—R 6 -Z-R 7 —) q —R 8 —Y wherein: each Y is independently OH or NH 2 ; q=1-2000; Z is —C(R 9 ) 2—; R 5 , R 6 , R 7 , and R 8 are each independently a straight chain alkylene group having 1-20 carbon atoms; and each R 9 is independently a straight chain alkyl group having 1-20 carbon atoms; and wherein the polymer is substantially free of ether, ester, and carbonate linkages.