Energy savings plus mechanical reinforcement and rheology control

High Gloss Acrylic Heat Sealable Paper Coating

Adhesives Formulation

Applicable Type

Hot-melt Adhesives

Applicable Base Polymer

Acrylics & Acrylic Copolymers

Applicable Industrial Sectors

Papers & Packagings , Flexible packaging: films / films & film / foil laminates

Applicable Base Polymer Properties

Acrylic thermoplastics offer an adhesive with excellent overall performance properties. Acrylic resins are tremendously versatile due to the large number of different monomers and resins available. Acrylic adhesives can provide bonds ranging from flexible and tough to hard and rigid depending on the formulation. Acrylic adhesives inherently have very good UV and oxidative stability and are generally preferred for outdoor applications. Solvent or hot melt based acrylic adhesives provide better chemical and heat resistance than waterborne acrylics.

Typical Formulation Properties:

Heat sealable paper coating
High gloss paper coatings with excellent grease and water resistance
Low moisture transmission
Tough and crease resistant
Anti-blocking characteristics
Flexible

Typical Formulation Ingredients

Phase

Ingredient

Parts by weight

n-Butyl methacrylate polymer (Elvacite® 2044, Mitsubishi)

xxxx

Castor oil wax (Castorwax™, Vertellus)

xxxx

Paraffin wax (135°F melting point)

xxxx

Plasticizer (Santicizer® B-16, Valtris)

xxx

Processing

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Resulting Properties

The above formulation is for a hot melt, high gloss, paper coating with heat sealable properties. Elvacite 2044 is a thermoplastic high molecular weight n-butyl methacrylate polymer. Elvacite 2044 is one of the softest and tackiest of the Elvacite resins. It is the preferred grade for many specialty adhesive applications, particularly for bonding coated “Mylar” polyester film and other nonporous plastic films and foil. The above formula is suggested as a heat-seal adhesive coating for paper.

Elvacite® 2044 resin also finds use in specialized adhesive applications where clarity and light-fastness are required. The solvent systems can be adjusted readily for ease of handling on conventional adhesive applicators.

Tips and Tricks

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