A radiation-curable composition which includes a cyanoacrylate component or a cyanoacrylate-containing formulation; a metallocene component; and a polymerizingly effective amount of a photoinitiator to accelerate the rate of cure is provided.
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1. A composition comprising:(a) a 2-cyanoacrylate of the formula H2C.dbd.C(CN)-COOR, wherein R is selected from the group consisting of C1-15 alkyl, alkoxyalkyl, cycloalkyl, alkenyl, aralkyl, aryl, allyl and haloalkyl groups, (b) a metallocene, and (c) a polymerisingly effective amount of a photoini
1. A composition comprising:(a) a 2-cyanoacrylate of the formula H2C.dbd.C(CN)-COOR, wherein R is selected from the group consisting of C1-15 alkyl, alkoxyalkyl, cycloalkyl, alkenyl, aralkyl, aryl, allyl and haloalkyl groups, (b) a metallocene, and (c) a polymerisingly effective amount of a photoinitiator to render the composition capable of photocuring in air upon exposure to at least one type of electromagnetic radiation selected from the group consisting of visible light, electron beam, x-ray and infrared radiation, wherein the composition has a viscosity from 1-15 cps, and wherein the metallocene component includes materials within the following structure: [EQU4]whereinR1 and R2 may occur at least once on each ring, may be the same or different and may be selected from H; any straight- or branched-chain alkyl constituent having from 1 to about 8 carbon atoms; acetyl; vinyl; allyl; hydroxyl; carboxyl; -(CH2)n-OH, wherein n may be an integer in the range of 1 to about 8; -(CH2)n-COOR3, wherein n may be an integer in the range of 1 to about 8 and R3 may be H; Li; Na; any straight- or branched-chain alkyl constituent having from 1 to about 8 carbon atoms; -(CH2)n', wherein n' may be an integer in the range of 2 to about 8; -(CH2)n-OR4, wherein n may be an integer in the range of 1 to about 8 and R4 may be any straight- or branched-chain alkyl constituent having from 1 to 8 carbon atoms; and -(CH2)n-N-(CH3)3 X-, wherein n may be an integer in the range of 1 to about 8 and X may be selected from Cl-, Br-, I-, ClO4- and BF4-; Y1 and Y2 may or may not be present, but when present at least once may be the same or different and may be selected from H, Cl-, Br-, I-, cyano, methoxy, acetyl, hydroxy, nitro, trialkylamines, triaryamines, trialkylphosphines, triphenylamine, and tosyl; A and A' may be the same or different and may be C or N; m and m' may be the same or different and may be 1 or 2; and Me is selected from Fe, Ti, Ru, Co, Ni, Cr, Cu, Mn, Pd, Ag, Rh, Pt, Zr, Hf, Nb, V and Mo.
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