Two-component coating formulation
AssigneeDymax Corporation
InventorsGary V. Grosclaude, Andrew G. Bachmann
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Abstract
A catalyst system for effecting polymerization in a two-part formulation, which contains an oxygen-containing ethylenically unsaturated monomer, consists of a selected acid, a selected aromatic amine compound, and a transition metal compound; active-oxygen, free-radical catalysts are excluded. Because of the nature of the catalyst system, efficient reaction does not require intimate mixing of the two components of the formulation, which may therefore be applied effectively as fine-droplet sprays from a common, ultrasonically vibrated head.
Claims10
A two-part, solvent-free liquid formulation that is innately curable to an adhesive solid, comprising a first component that includes an acid ingredient, and a second component that includes an aromatic amine compound having the general formula:
- ##STR2## wherein each of "R.sub.1 " and "R.sub.2 " is selected from the class consisting of hydrogen and an alkyl group, and wherein "Ar" is selected from the class consisting of monocyclic and polycyclic aromatic groups, at least one of said components additionally including a transition metal compound, at least one of said components being comprised predominantly of a polymerizable composition including at least one oxygen-containing ethylenically unsaturated polymerizable ingredient, and at least one of said components including an effective amount of a photoinitiator capable, when activated, of catalyzing polymerization of said polymerizable ingredient, said acid ingredient being substantially soluble in said polymerizable composition and forming a coordination compound with the metal of said metal compound, said formulation containing no more than one part per thousand of the metal ion of said transition metal compound, and being devoid of any free-radical, active-oxygen polymerization catalyst.
Dependencies are inferred from the claim text.