The Universal Selection Source: Adhesives Ingredients

Formulation

Versatile UV Curable Flexo Laminating Adhesive by Rahn

Typical Formulation Ingredients

Phase
Ingredient
Parts by weight
Acrylate resin (Genomer 6083/TP, Rahn Inc.) 
   
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    Dipropylene glycol diacrylate 
       
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    Methacrylated phosphate ester (Genorad 40, Rahn Inc.) 
       
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    Photoinitiator (Genocure DMHA, Rahn Inc.) 
       
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    Typical Properties

    Properties
    Viscosity at 25°C, cps 
       
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    T-peel test on OPP/OPP, Metalized OPP/PE, PE/PE, PE/Paper 
       
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    Reactivity, mJ/cm2 
       
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  • Applicable Base Polymer Properties

    Ultraviolet light (UV) or electron beam (EB) curing laminating adhesives are creating significant interest for flexible packaging. Acrylate / methacrylate monomers and oligomers as well as photoinitiators are essential components of UV adhesives. Similar monomers and oligomers are used in EB adhesives, but they do not require photoinitiators. These adhesives are also characterized by a very low application viscosity.

    Resulting Properties

    The above table shows a starting formulation for a flexo UV/EB cured laminating adhesive for versatile substrates. Upon curing, these adhesives offer a non-tacky film that provides excellent adhesive strength to a number of different substrates. However, when a specific application requires laminating opaque substrates, EB-curing adhesives may be necessary, since EB cure is not negatively affected by an opaque substrate.

    (Source: Rahn Inc.)

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