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1. (WO1993017048) FORMULATION DE REVETEMENT COMPORTANT DEUX CONSTITUANTS
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

THE CLAIMS
Having thus described the invention, what is CLAIMED is:
1. A two-part, solvent-free liquid formulation that is innately curable to an adhesive solid, comprising a first com-ponent that includes an acid ingredient, and a second component that includes an aromatic amine compound having the general ormula:



wherein each of "R^" and "R2" is selected from the class consisting of hydrogen and an alkyl group, and wherein "Ar" is selected from the class consisting of a monocyclic and poly-cyclic aromatic groups, at least one of said components addi-tionally including a transition metal compound, and at least one of said components being comprised predominantly of a polymerizable composition including at least one oxygen-containing ethylenically unsaturated polymerizable ingredient, said acid ingredient being substantially soluble in said polymerizable composition and being capable of forming a coordination compound with the metal of said metal compound, said formulation being devoid of any free-radical, active-oxygen polymerization
catalyst.
2. The formulation of Claim 1 wherein said amine compound is selected from the group consisting of N,N-(alkyl) -toluidines in which the alkyl group contains one to three carbon atoms, N-methylaniline, N,N-dimethylaniline, aniline, N,N-bis(2-hydroxy-ethyl)-p-toluidine, dimethyl aminostyrene, 4-dimethylamino-benzoic acid, ethyl-4-dimethylamino benzoate, N,N-dimethyl-p-amino benzyl alcohol, and mixtures thereof.
3. The formulation of Claim 1 wherein said metal compound is admixed in said first component, and wherein both of said components are comprised predominantly of said polymerizable composition.
4. The formulation of Claim 1 wherein said metal compound is a compound of a metal selected from the class consisting of cobalt, iron, cerium, copper, lead, manganese and vanadium.
5. The formulation of Claim 4 wherein said acid is a low molecular weight carboxylic acid selected from the class con- sisting or acrylic, methacrylic, acetic, ascorbic, oxalic, phthalic, itaconic, crotonic, 4-methoxyphenyl acetic, 3,5-di-hydroxybenzoic, and 3,3-dimethylaminobenzoic acids.
6. The formulation of Claim 1 wherein said polymerizable ingredient is an acrylate monomer.
7. The formulation of Claim 1 wherein said polymerizable ingredient is a prepolymer selected from the group consisting of urethane (meth)acrylates, epoxy (meth)acrylates, and urethane epoxy- (meth) acrylates.
8. The formulation of Claim 1 wherein at least one of said components additionally includes an effective amount of a photoinitiator capable, when activated, of catalyzing polymerization of said polymerizable ingredient.
9. The formulation of Claim 1 wherein said components are formulated for use in equal amounts.
10. The formulation of Claim 1 comprising, in percentages based upon the total weight thereof, 0.05 to 10 of said acid ingredient, 0.05 to 10 of said aromatic amine compound, and 0.002 to 1.5 of said metal compound.
11. The formulation of Claim 7 wherein said polymerizable composition comprises at least 20 weight percent of at least one acrylate monomer, and at least 20 weight percent of at least one prepolymer selected from said prepolymer group, based upon the weight of said formulation.
12. As a polymerization catalyst system for a formulation that includes at least one oxygen-containing ethylenically un-saturated polymerizable ingredient, the combination consisting essentially of an acid ingredient, an aromatic amine compound, and a transition metal compound, said acid ingredient being capable of forming a coordination compound with the metal of said compound, and said aromatic amine compound having the general formula:



wherein each of "R^" and "R2" is selected from the class consisting of hydrogen and an alkyl group, and wherein "Ar" is selected from the class consisting of a monocyclic and poly- cyclic aromatic groups, said system optionally including a photoinitiator, and being devoid of any free-radical, active-oxygen polymerization catalyst.
13. The system of Claim 12 wherein said aromatic amine compound is selected from the group consisting of N,N- (alkyl) -toluidines in which the alkyl group contains one to three carbon atoms, N-methylaniline, N,N-dimethylaniline, aniline, N,N-bis(2-hydroxyethyl)-p-toluidine, dimethyl aminostyrene, 4-dimethylaminobenzoic acid, ethyl-4-dimethylamino benzoate, N,N-dimethyl-p-amino benzyl alcohol, and combinations thereof.
14. The system of Claim 13 wherein said acid ingredient is selected from the class consisting of acrylic, methacrylic, acetic, ascorbic, oxalic, phthalic, itaconic, crotonic, 4-meth-oxyphenyl acetic, 3,5-dihydroxybenzoic, 3,3-dimethylamino-benzoic, and p-toluenesulfonic acids, and mixtures thereof.
15. The system of Claim 13 wherein said metal compound is a compound of a metal selected from the class consisting of cobalt, iron, cerium, copper, lead, manganese and vanadium.
16. The system of Claim 13 additionally including an effective amount of a photoinitiator capable, when activated, of catalyzing polymerization of the polymerizable ingredient.
17. In a method for the production of an adherent solid deposit upon a substrate, the steps comprising:
(a) providing 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:



wherein each of "R^" and "R211 is selected from the class consisting of hydrogen and an alkyl group, and wherein "Ar" is selected from the class consisting of a monocyclic and poly-cyclic aromatic groups, at least one of said components additionally including a transition metal compound, and at least one of said components being comprised predominantly of a polymerizable composition including at least one oxygen-containing ethylenically unsaturated polymerizable ingredient, said acid ingredient being substantially soluble in said polymerizable
composition and being capable of forming a coordination compound with the metal of said metal compound, said formulation being devoid of any free-radical, active-oxygen polymerization cat-* 5 alyst.
(b) forming a liquid deposit of said formulation upon a
substrate; and
(c) effecting curing of said liquid deposit to produce an adherent solid deposit on said substrate.
10 18. The method of Claim 17 wherein said aromatic amine
compound is selected from the group consisting of N,N- (alkyl) - toluidines in which the alkyl group contains one to three
carbon atoms, N-methylaniline, N,N-dimethylaniline, aniline,
N,N-bis(2-hydroxyethyl)-p-toluidine, dimethyl aminostyrene,

15 4-dimethylaminobenzoic acid, ethyl-4-dimethylamino benzoate,
N,N-dimethyl-p-amino benzyl alcohol and combinations thereof.
19. The method of Claim 17 wherein said step (b) includes producing, from each of said formulation components, a spray of fine droplets, and interspersing said sprays just prior to con- 20 tact of said substrate therewith.
20. The method of Claim 19 wherein each of said sprays is produced by subjecting thin films of said formulation components, each moving along a given axis, to ultrasonic vibratory motion on said axes.
25 21. The method of Claim 20 including, as additional
steps: providing ultrasonic apparatus comprised of a spray head having opposite side surface portions that are substantially
parallel to one another and that terminate at one end at a
common transverse plane, and delivery means for the delivery of

30 said components of said formulation separately to said side
surface portions; operating said apparatus to cause said spray head to vibrate ultrasonically along an axis parallel to said surface portions while concurrently delivering said formulation components, at relative rates suitable for reaction there- 35 between, separately to said side surfaces at points spaced from said common plane, so as to produce adjacent sprays of said
components issuing from said one end of said head; and disposing said substrate outwardly of said common plane, spaced from said spray head a distance sufficient to permit substantial interspersion of said sprays of formulation components prior to contact of said substrate thereby.
22. The method of Claim 19 wherein each of said formulation components has a viscosity, measured at 25° Centigrade, in the range 80 to 200 centipoise.
23. The method of Claim 17 wherein said formulation additionally includes an effective amount of a photoinitiator capable, when activated, of catalyzing polymerization of said polymerizable ingredient, and wherein said curing step (c) is in-itiated by exposure of said liquid deposit to actinic radiation for said photoinitiator.
24. The method of Claim 18 wherein, in said formulation, said acid ingredient is selected from the class consisting of acrylic, methacrylic, acetic, ascorbic, oxalic, phthalic, ita-conic, crotonic, 4-methoxyphenyl acetic, 3,5-dihydroxybenzoic, 3,3-dimethylaminobenzoic, and p-toluenesulfonic acids, and mixtures thereof, and wherein said metal compound is a compound of a metal selected from the class consisting of cobalt, iron, cerium, copper, lead, manganese and vanadium.