Energy savings plus mechanical reinforcement and rheology control

Hot Melt Adhesive Based on Polyolefin Elastomer (Low Application Temperature) by Dow Chemical

Adhesives Formulation

Applicable Type

Hot-melt Adhesives

Applicable Base Polymer

Polyolefins

Applicable Industrial Sectors

Hygiene

Applicable Base Polymer Properties

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. Affinity GA polyolefin elastomers have low density and low molecular weight combinations for polyolefins. They are designed to be used in hot melt and hot melt pressure sensitive adhesive formulations in a variety of applications.

Typical Formulation Ingredients

Phase

Ingredient

Parts by weight

Polyolefin elastomer resin (Affinity GA 1900, Dow Chemical)

xxxx

Hydrocarbon plasticizer (Eastotac H-130R, Eastman Chemical)

xxxx

Wax (Paraflint H2, Sasol Wax Americas, Inc.)

xxxx

Antioxidant (Irganox 1010, BASF)

xxx

Typical Properties

Properties

Application temperature, °C

xxx

Peel adhesion failure temperature (PAFT), °C

Shear adhesion failure temperature (SAFT), °C

Onset of fiber (virgin corrugated) tear, °C

xxx

Gardner color after 200 hrs at application temperature

Processing

Resulting Properties

Hot Melt Adhesive Based on Polyolefin Elastomer (Low Application Temperature) have good thermal stability (minimal color changes and reduced gel formation on standing in the melter). 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, non-woven hygienic products, and graphic arts. These formulations offer a wider service temperature range than EVA based hot melt adhesives. The source of the formulation is Dow Chemical.

Tips and Tricks

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