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Adhesives Ingredients
The material selection platform
Adhesives Ingredients

Amorphous Polyolefin Based Hot-melt Adhesive for Packaging Applications (A) by Eastman

Adhesives Formulation | Supplied by Eastman

Applicable Type
Applicable Base Polymer
Applicable Industrial Sectors

Applicable Base Polymer Properties

Aerafin™ resins are saturated, low molecular weight, propylene-based olefin polymers with good low temperature properties for adhesion in freezing conditions and compatibility with a wide range of waxes and hydrocarbon tackifying resins.

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. Polyolefin adhesive films are also used in extrusion coating. In this application a ply of adhesive is extruded onto a structure to provide a heat-sealing medium for later bonding.

Typical Formulation Ingredients

Phase
Ingredient
Parts by weight
Polyolefin (Aerafin™ 17 Polymer, Eastman) 
xx 
Polyolefin (Aerafin™ 180 Polymer, Eastman) 
xx 
Metallocene PP high crystallinity wax (Licocene® PP 6102 granules, Clariant) 
xx 
Tackifier (Eastotac™ H-130W Resin, Eastman) 
xx 
Polypropylene wax (A-C® 596, Ma-PP, Honeywell) 
x 

Typical Properties

Properties
Viscosity at 177°C, cps 
xxxx 
Ring and ball softening point, °C 
xxx 
Set time, sec 
xx 
Open time, sec 
xxx 

Processing

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Resulting Properties

Polyolefin based hot melt adhesives have good thermal stability (minimal color changes and reduced gel formation). Melt viscosities can have a wide range due to molecular design and additives. The formulations above describe hot melt adhesives for general purpose bonding of packaging for cold applications. These formulations offer a wider service temperature range than EVA based hot melt adhesives. The adhesives have non-tack, they are clear, and have excellent room temperature flexibility.

Tips and Tricks

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