Henkel Ag & Company, Kgaa

Henkel IP Holding Gmbh

Nigel Sweeney

Brendan J Kneafsey

Andrew D Messana

Mark Loane

Lynnette M Hurlburt

James Houlihan

Brian Deegan

David Condron

Gavin Haberlin

Stephen Fearon

Rory R Barnes

Patrick O'Dwyer

Marc Hamm

Frances Murphy

Gerry Coughlan

Marc Galligan

Vincent O'BRIEN

David Birkett

A curative free sealant composition for sealing joints between male and female parts, the sealant composition comprising a solid resin component, a solid (meth)acrylate polyurethane component, and an ethoxylated bisphenol-A (meth)acrylate component.

Curative free joint sealant

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

An anaerobically curable composition comprising (i) a curing system for curing an anaerobically curable component, comprising a combination of a metallocene such as n-butyl ferrocene and acetyl phenyl hydrazine, (ii) the anaerobically curable component comprising: a) a solid resin component and b) a solid anaerobically curable monomer; and wherein the composition is in solid form and has a melting point in the range from 30° C. to 100° C. The metallocene may be present in the amount from about 0.05% to about 2.5% by weight based on the total weight of the composition and the acetyl phenyl hydrazine is present in the amount from about 0.05% to about 1.75% by weight based on the total weight of the composition. Compositions show greater bond strengths.

Anaerobically curable compositions comprising a metallacene and acetyl phenyl hydrazine curing system

A redox curable composition, methods for manufacturing same and uses thereof are disclosed. The redox curable composition is useful as a pre-applied adhesive. The redox curable composition is solid at room temperature, may be heated for application to a substrate, and cools to form a dry-to-touch adhesive layer on said substrate, which may be activated when required by mating with another substrate and exposure to an anaerobic environment. The composition is particularly suited to manufacturing complex products, such as mobile phones, computers and circuits.

Redox curable compositions and methods of manufacture thereof

A bonding system for bonding a plastic substrate to another substrate, the bonding system comprising a plastic substrate wherein the plastic substrate is impregnated with a transition metal; and an anaerobically curable composition. Cure of the anaerobically curable composition is initiatable by the transition metal when the anaerobically curable composition is contacted with the plastic substrate under anaerobic conditions.

Cure of anaerobic compositions

A curable composition based on a curable acrylate or methacrylate component; an organoborane initiator component; a vinyl ether component; and an activator for the organoborane component. The composition exhibits good storage stability and good bonding properties when used to bond low surface energy substrates.

Curable acrylate or methacrylate compositions

Growing community of inventors

Dublin, Ireland

Nigel Sweeney