prov:value
| - For example, gelatin derivatives, graft polymers of gelatin and other polymers, proteins such as albumin and casein, cellulose derivatives such as hydroxyethyl cellulose, carboxymethyl cellulose and cellulose sulfuric acid esters, sodium alginate, sugar derivatives such as starch derivatives, and various hydrophilic synthetic polymers such as homo-or copolymers, e.g., polyvinyl alcohol, partly ace
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