Energy savings plus mechanical reinforcement and rheology control

General Purpose UV Curable Adhesive

Adhesives Formulation

Applicable Base Polymer

Acrylics & Acrylic Copolymers

Applicable Industrial Sectors

Electrical & Electronic Bonding , Industrial Assembly , Papers & Packagings

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. Aliphatic urethane acrylates are commonly used in laminations since they have good adhesion to most films and are non-yellowing. These adhesives are also characterized by a very low application viscosity, on the order of 350-450 cps.

Typical Formulation Ingredients

Ingredient

Parts by weight

Urethane acrylate

Isobornyl acrylate

Trimethylolpropane triacrylate

Pigment and stabilizer

Photoinitiator

Processing

xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Resulting Properties

A typical formulation for a general purpose UV radiation cured adhesive is provided in the table above. The wide choice of raw materials available to the formulator allows maximum latitude to achieve the desired properties.
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.