Appeal No. 1996-2738
Application 08/252,501
moieties bonded to each derivatized saccharide monomer, said
derivative having been prepared by reacting a substantially
non-crosslinked polysaccharide with a polycationic reagent
having a single polysaccharide reactive group and at least two
cationic groups, whereby the derivative is water soluble.
32. The paper of Claim 27 wherein the polycationic
reagent is a polyamine having the structure:
1 3 4 5
wherein R , R , R and R
are identical or
differe nt and represent
a C -C alkyl group or a
1 6
C aryl group or a C -C
6 6 12
alkaryl group; R are a C -C alkylene or alkylene ether or a C6 6
2 2 6
arylene or a C -C alkarylene group; R , R , R and R is6 12 6 7 8 9
independently, hydrogen or a C -C alkyl or a C -C alkaryl1 6 6 12
group; Z is a polysaccharide reactive group; and A is an
anion.
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