Patent ID: 8796381

Claim:
An encapsulated cure system for curable compositions comprising: a) a carrier material, b) a curative contained in said carrier material, and c) a polymer capsule encasing said carrier material wherein the curative is (i) non-reactive with the carrier material in the encapsulate state, (ii) entrapped or substantially non-migratory in the carrier material and (iii) present at a concentration of at least 0.1 weight percent based on the weight of the carrier material and wherein the carrier is a natural or synthetic material or composition that is non-flowing to the extent that sufficient curative necessary to effect polymerization of a curable composition is not made available without altering the carrier to a flowable state and/or applying mechanical forces to the carrier to work the carrier and thereby expose or make available more of the entrapped curvative, wherein the carrier material is selected from the group consisting of hot melts, pressure sensitive adhesives, rubber materials, elastomer/tackifier compositions, a polymer whose Tg is less than 35° C., semi-solid and solid resins, starches and starch-based polymers, hydrogels, low temperature waxes and a thickened or gel-like mass of one or more monomers, oligomers, prepolymers or combinations thereof.