FILM FORMING COMPOSITIONS OF NITRILE POLYMER LATEX BLENDS

摘要

Blends comprising at least two aqueous nitrile resin latexes which differ in film forming characteristics and dry film properties are useful in many applications as protective coatings. These blends are particularly useful as corrosion resistant coatings for metal substrates. A film forming composition can comprise a mixture of A. A first resin latex comprising (i) a major proportion of an olefinically unsaturated nitrile monomer, (ii) a minor amount of at least one other olefinically unsaturated monomer which is copolymerizable with the nitrile, and B. A second resin latex comprising (i) an olefinically unsaturated nitrile monomer, and (ii) at least one other olefinically unsaturated monomer which is copolymerizable with the nitrile, wherein the difference between the MFT of the first and second latexes is at least 10 DEG C.