COATING COMPOSITIONS INCLUDING A LATEX AND A COALESCING AGENT, PRODUCTION THEREOF AND COATINGS SO FORMED

摘要

A coating composition comprises a blend of (1) a latex produced by the polymerization of a major proportion of a monounsaturated nitrile and a minor proportion of at least one monovinyl monomer component copolymerizable therewith optionally in the presence of a preformed diene rubber, and (2) a coalescing agent which is (a) a solvent for (1), (b) has a boiling point between 100 and 300 DEG C, and (c) does not azeotrope with water.
The coating composition forms an excellent oxygen barrier with good chemical resistance. In a particular embodiment acrylonitrile and methyl acrylate are polymerized with an acrylonitrile-butadiene rubber to form a latex to which dimethyl formamide is added as a coalescing agent.