Loctite (r&d) Limited

Henkel Ireland Limited

Locite (r&d) Limited

Michael A Doherty

Ciaran B McArdle

David J Farrell

Peter C Rushe

Geoffrey F Seymour

The present invention relates to cationically and radically curable coating compositions for coating a surface. The coating compositions consist essentially of a radically or cationically curable monomer, and a metal salt. The metal salt is chosen so that it is reduced at the surface to be coated, and where the standard reduction potential of the metal salt is greater than the standard reduction potential of the surface, and where when the composition is placed in contact with the surface, the metal salt of the composition is reduced at the surface, thereby initiating cure of the curable component in the compositions. Redox mediated cure of the coating compositions results in a coating or film on the surface. The invention also provides for functionalization of surfaces. Cross-linking of the coating occurs directly on the surface.

Coating compositions

The present invention relates to cationically curable compositions for curing on a surface comprising a cationically curable component, an accelerator species comprising at least one vinyl ether functional group and an initiator component capable of initiating cure of the cationically curable component. The initiator comprises at least one metal salt, which is chosen so that it is reduced at the surface, and where the standard reduction potential of the initiator component is greater than the standard reduction potential of the surface, and where when the composition is placed in contact with the surface, the metal salt of the initiator component of the composition is reduced at the surface, thereby initiating cure of the cationically curable component of the composition. The accelerator species comprising at least one vinyl ether functional group greatly enhances the rate of cure. No catalytic component is required in the composition for efficient cure.

Surface-promoted cure of cationically curable compositions comprising vinyl ethers

A cap assembly for closing a container. The cap assembly has: (i) an undercap having a cap body with a top end (or wall) and with at least one endless side wall depending from the top end (or wall) to form a housing for receiving the neck of a container; (ii) an overcap having an overcap body with a top end and with at least one endless side wall depending from the top end to form a housing for receiving and engaging the (cap body of the) undercap; and (iii) an applicator having a stem with a first end for engagement with, or integrally formed with, the undercap within the housing, so that the stem projects from the housing, and a second free end for applying product. The exterior of the undercap body has a series of circumferentially arranged teeth for interengagement with a corresponding series of circumferentially arranged teeth within the housing of the overcap. The two series of teeth being interengageable at a number of relative positions, so that the relative orientation of the overcap to the undercap can be selected. As the undercap is adapted to be attached to the container, relative orientation of the overcap and the container is thus also selectable. In an alternative arrangement the two series of teeth form a safety or child proof cap arrangement. However, the application of a sufficient downward force upon the overcap causes the engagement of the two series of teeth allowing a user to rotate the overcap and undercap in unison. Biasing means may be provided to bias the overcap and undercap apart so that pressure must be applied against the biasing means to remove the cap assembly. Applicators are also provided as an assembly comprising an undercap and an applicator which can be assembled by screwing the undercap on a container into which the applicator has first been placed.

Applicator, applicator cap and a container having an applicator cap

The invention is a nozzle assembly () with a re-useable break off cap () for dispensing a product from a container (). On a dispensing end () of the nozzle () a break-off cap () is integrally formed thereon and closes off the dispensing end () of the nozzle (). The break-off cap () is removable by breaking a frangible connection () between the nozzle () and the break-off cap (). Removing the break-off cap opens the dispensing end () of the nozzle () thereby allowing product to be dispensed through the nozzle (). The break-off cap () removed from the nozzle () can then be re-engaged with the nozzle () to close off the dispensing end () thereby preventing further product from being dispensed. The cap can be attached to or removed from the nozzle () as often as a user requires. The invention also includes packaging which includes a tray () or pouch into which the nozzle assembly () and container () can be inserted. A flexible resealable peel-off cover () is provided on each tray () to allow a user to resealably open and close the tray (). The resealable tray () can be provided either singly or as a series of trays.

Growing community of inventors

Mayo, Ireland

Michael A Doherty