EVA Hot Sealable Coating for Folding Food Cartons

Typical Formulation Ingredients

Phase

Ingredient

Parts by weight

A

Ethylene vinyl acetate copolymer (28% vinyl acetate, MI of 200 to 300)

xx

A

Microcrystalline wax (Be Square 175, New Phase Technologies)

xx

A

Paraffin wax fully refined (melting point of 135°F to 137°F)

xx

A

Hydrocarbon resin (Piccotex LC, Eastman)

x

Typical Properties

Properties

Brookfield viscosity, cps, at:

93°C

xxx

225°C

xxx

250°C

xxx

275°C

xxx

Processing

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Resulting Properties

It is a low cost, general purpose EVA hot melt coating formulation for folding food cartons. Heat sealable coating applications are a primary market for hot-melt adhesives which are based predominantly on EVA copolymer resins. A tackified EVA is necessary for bonding substrates that have a relatively low surface energy.

A formulation by Flick, E.W., Adhesive and Sealant Compound Formulations, Noyes Publications, 1984, p. 345-346

Tips and Tricks

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