Active-methylene functionalized latex polymer prepared in the presence of a hydrophilic isoprene sulfuric acid polymer, and sheet material comprising same

摘要

A latex is prepared by polymerizing a polymerizable monomer having an active methylene group in the presence of a hydrophilic polymer. The hydrophilic polymer comprises an isoprene sulfonic acid or salts thereof as a monomer unit. A sheet material is prepared having a support with a hydrophilic layer containing the latex thereon.