CORROSION RESISTANT COATING FROM WATER THINNABLE AMINO ETHYLATED INTERPOLYMERS

摘要

Doc 218? CORROSION RESISTANT COATING FROM WATER THINNABLE AMINOETHYLATED INTERPOLYMERS: A water soluble coating composition having flashrusting inhibiting qualities when used on ferrous metal surfaces and improved moisture resistance and film impermeability. The coating composition basically comprises a prior art water miscible solvent, and acidified aminoethylated vinyl polymer dissolved in the solvent and epoxy resin. To inhibit flash-rusting a rust inhibiting pigment selected from the group consisting of finely divided metallic aluminum or stainless steel is employed. The acidified aminoethylated vinyl polymer is one having pendant aminoethyl groups of the formula Wherein R1 and R2 are independently selected from the group consisting of hydrogen and lower alkyl radicals of one to four carbon atoms and the average of n ranges from about 1.0 to about 2.5 and wherein the interpolymer before aminoethylation contains at least 3 percent by weight pendant -COOH groups and further wherein said aminoethyl groups are reacted with sufficient acid to impart water solubility to the interpolymer.