STRETCHABLE HOT-MELT ADHESIVE COMPOSITION WITH THERMAL STABILITY AND ENHANCED BOND STRENGTH

摘要

An adhesive composition including an atactic polymer, an isotactic polymer, and an extensible base polymer, such as ethylene-vinyl acetate and/or ethylene methacrylate. The composition may also include a tackifier, such as a high softening point tackifier resin, a low softening point additive, and/or other additives, such as an antioxidizing agent, a plasticizer, mineral oil, color pigment, filler, polymer compatibilizer, or a combination of any of these additives. Facing layers, particularly stretchable and/or elastomeric substrates, can be bonded with the adhesive composition. The adhesive composition maintains high bond strength, even at body temperature and after initial stretching. Such adhesive compositions and laminates can be made according to a method of the invention.