Typical Formulation Ingredients
Phase
Ingredient
Parts by weight
A
Urethane zinc acrylate (CN2405, Sartomer)
A
Free radical initiator (Vaxo 57, Miller-Stephenson)
A
Hydrocarbon resin tackifier (Sunbelt TO-125 YS, Sunbelt Chemicals)
Typical Properties
Lap shear adhesion on cold rolled steel, psi 30 mins at 80°C
Resulting Properties
Metal-containing crosslinking oligomers, such as CN2404 and CN2405, can be prepared and used as co-reactants for acrylic pressure-sensitive and hot-melt adhesives. The metal-containing oligomers have been shown to promote adhesion to metal and glass. These oligomers introduce ionic crosslinks into the molecular backbone. The ionic crosslinks yield thermoset behavior and enhanced the adhesive properties at ambient temperature. At elevated temperatures, the crosslinks broke to yield thermoplastic behavior.