Water insoluble derivatives of polyanionic polysaccharides

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Carbohydrate doai

Reexamination Certificate

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Details

C514S054000, C514S056000, C514S057000, C514S060000, C514S062000, C536S021000, C536S056000, C536S102000, C536S124000

Reexamination Certificate

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06943154

ABSTRACT:
A water insoluble, biocompatible composition that is formed by a method which combines, in an aqueous mixture, a polyanionic polysaccharide, a nucleophile, and an activating agent, under conditions sufficient to form the composition. Also, a water insoluble, biocompatible composition that is formed by a method which combines, in an aqueous mixture, a polyanionic polysaccharide, a modifying compound, a nucleophile and an activating agent under conditions sufficient to form the composition.

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