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| Number | Title | Issue Date |
| 5756632 | Systems for premeating molecules of predetermined molecular weight range A biocompatible, hydrophilic, segmented block polyurethane copolymer which comprises 5 to 45 wt % of a hard segment and 95 to 55 wt % of a soft segment selected from a hydrophilic, hydrophobic and amphipathic oligomer is disclosed. The copolymer is capabl... | 05/26/1998 |
| 5428123 | Copolymers and non-porous, semi-permeable membrane thereof and its use for permeating molecules of predetermined molecular weight range A biocompatible, hydrophilic, segmented block polyurethane copolymer which comprises 5 to 45 wt % of a hard segment and 95 to 55 wt % of a soft segment selected from a hydrophilic, hydrophobic and amphipathic oligomer is disclosed. The copolymer is capabl... | 06/27/1995 |
