Henkel Ag & Company, Kgaa

Stephen Fearon

Brendan J Kneafsey

David Condron

Gavin Haberlin

Nigel Sweeney

Brian Deegan

Patrick O'Dwyer

Marc Hamm

Gerry Coughlan

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

Disclosed herein are anaerobically curable compositions comprising one or more polymerizable (meth)acrylate ester monomers, a redox-active metal catalyst, saccharin or a saccharin derivative, a peroxide, and a benzoyl functionalized compound, wherein the composition does not gel after about 24 hours of storage at room temperature and methods of adhering two substrates using the anaerobically curable compositions.

One-part 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

Growing community of inventors

Swords, Ireland

Stephen Fearon