Henkel Ag & Company, Kgaa

Gavin Haberlin

Stephen Fearon

Brendan J Kneafsey

Nigel Sweeney

Brian Deegan

Darragh Fitzpatrick

Lisa Kennedy

David Condron

Martin Smyth

Marc Hamm

Patrick O'Dwyer

Vincent O'BRIEN

An anaerobically curable composition comprising a hydroxy-functionalized mono(meth)acrylate compound, an aromatic mono(meth)acrylate compound which is not the same as the hydroxy-functionalized mono(meth)acrylate compound, a (meth)acrylate functionalised polyurethane resin, and an anaerobic cure inducing component.

Anaerobically curable compositions

A method of activating a surface of a plastics substrate formed from: for subsequent bonding, the method comprising the step of exposing the surface to actinic radiation wherein the actinic radiation: includes radiation with wavelength in the range from about 10 nm to about 1000 nm; the energy of the actinic radiation to which the surface is exposed is in the range from about 0.5 J/cmto about 300 J/cm. Hard to bond substrates are then more easily subsequently bonded for example using acrylic, epoxy or anaerobic adhesive.

Activating surfaces for subsequent bonding

Photocurable (meth)acrylate compositions with low viscosity when uncured, and high flexibility and shear/tensile strength when cured, further possessing rapid tack-free fixture times, comprising mixtures of urethane acrylate resin, isobornyl acrylate, N,N-dimethylacrylamide, a photoinitiator component, and a low percentage of tetrahydrofurfuryl acrylate, for example from about 9% to about 15% by weight based on the weight of the composition. Applications can include adhesive bonding of medical tubing, UV/Visible transparent plastics material medical devices or equipment, or other flexible UV/Visible transparent material substrates.

Low-viscosity photocurable adhesive compositions

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County Dublin, Ireland

Gavin Haberlin