High solids, maltodextrin-based adhesives

摘要

The present invention is directed to a high solids, water-based remoistenable adhesive consisting essentially of at least about 50% to less than 100% of a maltodextrin syrup having a solids content of about 60-80%, 0 to about 50% of water, and an effective amount of a preservative. The maltodextrin syrup is prepared from a converted or a non-converted, chemically derivatized granular starch having an amylose content of 40% or less, by a high solids, single phase enzyme conversion process. The maltodextrin has (i) substituents in an amount sufficient to provide a degree of substitution between greater than about 0.01 and less than about 0.50; (ii) a reducing sugar content of about 5-19 dextrose equivalent; and (iii) a polymodal molecular weight distribution having one peak between about 630-1600 daltons and at least one other peak between about 1600-2,500,000 daltons. A preferred remoistenable adhesive consists essentially of about 15-90% of polyvinyl acetate, ethylene vinyl acetate, or mixtures thereof; about 10-85% of the above maltodextrin syrup; and about 75% water.