Applicable Base Polymer Properties
Polyethylene resin is manufactured by "high pressure" (LDPE) technology, gas phase, or metallocene technology. Some manufacturers have two different processes. The type of PE incorporated into hot melt adhesives is highly branched.
Adhesives that are based on polyolefin resins are used mainly as hot melt adhesives in either block or film form. In film form, they provide excellent peel strength as a hot laminating adhesive for plastic films and metallic foils. Polyethylene adhesive films are also used in extrusion coating. In this application a ply of polyethylene is extruded onto a structure to provide a heat sealing medium for later bonding.