Patent ID: 6054492
Filing Date: 2000-04-25
Classification: A61K,C08G,Y10S

Abstract:
A compound having the formula:C.sub.q H.sub.2q+1 --L.sup.1 --{R.sup.2 --L.sup.2 --M}.sub.w --L.sup.4 --R.sup.4 --L.sup.3 --R.sup.3in which:q has a value of from 2 to 50;w has a value of from 1 to 100;L.sup.1 and L.sup.2 are linking groups;R.sup.2 is C.sub.x F.sub.y or C.sub.x F.sub.y H.sub.z in which x has a value of from 2 to 50, y has a value of from 1 to 2x, and z has a value of 2x-y+1;M is a hydrophilic homopolymer or copolymer comprising at least three monomeric units each containing at least one atom selected from the group consisting of oxygen and nitrogen;R.sup.3 is (i) hydrogen; or (ii) a monovalent hydrocarbon of 2 to 5 0 carbon atoms; or (iii) a monovalent fluorinated hydrocarbon of 2 to 50 carbon atoms;R.sup.4 is (i) a bond if R.sup.3 is hydrogen; or (ii) C.sub.x F.sub.y or C.sub.x F.sub.y H.sub.z ; or (iii) a divalent hydrocarbon of 2 to 50 carbon atoms; andeach of L.sup.3 and L.sup.4 taken together with R.sup.4, is a bond if R.sup.3 is hydrogen or if R.sup.3 is other than hydrogen, each of L.sup.3 and L.sup.4, taken independently is a linking group.