Two-component industrial maintenance coating composition

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

400/4703, 400/59

C08L 63/02 (2006.01) C08G 59/18 (2006.01) C09D 163/00 (2006.01)

Patent

CA 1158791

ABSTRACT OF THE DISCLOSURE The present invention is directed to a two-component industrial maintenance coating system. The first component comprises a polyamine terminated epoxy resin which is end capped with specifically defined monoepoxides. A co-solvent is optionally employed in the first component where the end capped adduct is a solid at room temperature. The second component comprises a low molecular weight polyepoxide resin crosslinker and optionally a diluent when the epoxy crosslinker is very viscous or solid at room temperature. Before the two components are mixed together the end capped adduct must be converted to its water soluble or water dispersable salt form by reaction with a volatile acid to achieve a certain degree of salting. When the two components are mixed together the epoxide resin crosslinker is microemulsified. The composition which results upon mixing the components is curable at room temperature and exhibits an excellent balance of chemical and physical properties.

357622

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