The composition of 1, wherein the one or more molten modified ureas comprises a urea that has been chemically modified with one or more members selected from the group consisting of a) one or more aldehydes selected from the group consisting of i) formaldehyde and ii) one or more modified formaldehydes selected from the group consisting of (1) paraformaldehyde, (2) trioxane, and (3) one or more methoxy capped formaldehyde reaction products selected from the group consisting of (a) 1,3,4,6-Tetrakis(methoxymethyl)glycoluril, (b) N,N,N′,N′,N″,N″-Hexakis(methoxymethyl)-1,3,5-triazine-2,4,6-triamine, (c) one or more bio-active agents, and (d) mixtures thereof.