Patent ID: 8802808

Claim:
A dialysis filter adapted for mass transfer that takes place during the detoxification of blood comprising an embedding composition which comprises components based on (A) a polyol mixture and (B) at least one modified isocyanate based on an isocyanate component b1) and a diol component b2), wherein the polyol mixture comprises as components a1) at least one fat-based polyol, a2) at least one polyetherol having a number average molecular weight of from 500 to 2000 g/mol and a3) one or more crosslinkers having a number average molecular weight of from 90 to 400 g/mol, wherein the number average molecular weight of component a1) differs by not more than 400 g/mol from the number average molecular weight of component a2) and components a1) and a2) do not differ from one another in OH functionality by more than 0.5, the polyol mixture, based on the total weight of a1), a2) and a3), comprises from 45 to 65% by weight of component a1), from 34 to 54% by weight of component a2) and from 1 to 21% by weight of component a3), and the diol component b2) is a mixture of at least two different propylene glycols differing in number average molecular weight.