ANIONIC AGENT FOR PAPER SURFACE SIZING

摘要

The invention relates to an anionic agent comprising a solution copolymer obtained from copolymerization between an unsaturated cyclic anhydride, a maleic anhydride for example, modified by reaction with an epoxy and alkene, styrene for example. The invention also relates to a process for obtaining said anionic agent. This anionic agent can be used for paper surface sizing.