Patent ID: 8530608

Claim:
A water-based adhesive composition; said adhesive composition comprising: an aqueous dispersion or emulsion of a maleated polypropylene polymer component having a plurality of carboxylic acid groups, wherein said carboxylic acid groups are inactive in said adhesive composition as prepared; a water-soluble, or water emulsion, or dispersion of a cross linker component, said cross linker component comprising at least one of ammonium zirconium carbonate, zinc ammonium zirconium carbonate, a carbodiimide, a polyamide epichlorohydrin resin, a polyfunctional aziridine, or mixtures thereof and having functional groups wherein said functional groups are reversibly inactive in said adhesive composition as prepared; and wherein said adhesive composition has a pH of from 7 to 11 and wherein said carboxylic acid groups on said polymer component and said functional groups on said cross linker component becomes reactive with each other by at least one of volatization of ammonia, heated drying, a shift in pH, dehydration, or a combination thereof.