Loctite (r&d) Limited

Henkel Ireland Limited

Ciaran Bernard McArdle

David J Farrell

Rory B Barnes

The present invention relates to one-part cationically curable compositions with storage stability, wherein cure is independent of external stimuli such as heat and UV irradiation. In particular, the present invention provides for compositions with a long shelf life that will cure only upon application of the composition to the target surface, i.e. the surface is involved in initiating cure of the cationically curable component. Suitable compositions comprise those for curing on a surface comprising carbon-halogen covalent bonds comprising a cationically curable component and a non-halide silver salt. The present invention also relates to a primer capable of promoting cure of cationically curable non-halide silver salt compositions.

Cationically curable compositions and a primer therefor

The invention provides a method of forming a monolayer of substantive particles including the steps of applying to a substrate a curable composition having substantive particles contained therein, the substantive particles having a particle size on at least one dimension thereof of at least 1 micrometer and being in two or more groups of different sizes; exposing the substantive particle-containing curable composition to a source of energy suitable for effecting polymerization of the curable composition for a sufficient time to effect polymerization of a layer of the curable composition having a thickness of no more than 50% of the height of the largest substantive particles; and optionally, removing uncured curable composition. The invention also provides a method of forming a monolayer of substantive particles in a non-random array where the curable composition comprises a ferrofluid composition. The latter method further comprises the step of subjecting the particle-containing curable ferrofluid composition to a magnetic field for a sufficient time to array the particles in a non-random manner in the composition prior to the exposure.

Growing community of inventors

Dublin, Ireland

Ciaran Bernard McArdle