Paper sizing process
AssigneeStandard Oil Company (Indiana)
InventorsMark E. Bateman, Jeffrey T. Palmer
Life of this patent
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Abstract
Paper sizing process comprising (1) adding a sizing composition of a cationic retention aid and a monoester of a benzene carboxylic acid anhydride having from 6 to 60 carbon atoms in the ester group to an aqueous pulp suspension or paper stock prior to web formation, and (2) heating said sized paper web to a temperature of from 80.degree. to 150.degree. C.
Claims17
A paper sizing process comprising (1) adding a sizing composition of a cationic retention aid and a monoester of a benzene carboxylic acid anhydride having from 6 to 60 carbon atoms in the ester group in a sizing amount to an aqueous pulp suspension or paper stock prior to web formation, (2) forming the web, and (3) heating said sized paper web at a temperature of from 80.degree. to 150.degree. C.
Dependencies are inferred from the claim text.