https://catalog.data.gov/dataset/patent-at-e40164-t1-translated-storage-stable-paper-glue-composition-containing-ethoxylate
U.S. Department of Health & Human Services - Patent AT-E40164-T1: [Translated] STORAGE STABLE PAPER...
A shelf stable paper size is prepared from a mixture of a substituted cyclic dicarboxylic acid anhydride and an ethoxylated castor oil.
department of health human