APAO (amorphous polyalphaolefin) polymers are used as a base for the manufacture of a wide variety of hot melt adhesive and sealant systems.  

Because APAO is compatible with many solvents, tackifiers, waxes, and other polymers, it is well suited for many adhesive applications in the packaging, construction, medical, and personal care industry.  

As an example, APAO hot melt adhesives are widely used for hygienic applications such as disposable diapers.  

Similar to styrene-isoprene systems, APAO polymers degrade via chain scission during high temperature aging.  

The appropriate choice of antioxidant or antioxidant system can prevent the effects of degradation such as color formation and most importantly, viscosity decrease. Depending on the adhesive system and application requirements, the use of lactones may provide further stabilization benefits.

For more detailed recommendations regarding your particular application, please contact us.