Polymer latex of high acrylonitrile content, film, pattern forming material and lithographic printing plate precursor using the same, and method for production of polymer latex

摘要

A method for producing a polymer latex includes: mixing a polymerizable monomer in which acrylonitrile accounts for 70% by weight or more of a total of the polymerizable monomer, water and a polymerization initiator to conduct emulsion polymerization; and distilling off a monomer unpolymerized in the emulsion polymerization.