Bonding compositions

Claim 1

AN ESSENTIALLY LIQUID BONDING COMPOSITION SUBSTANTIALLY FREE OF SOLIDS OTHER THAN THOSE OF COLLOIDAL SIZE AND SMALLER FOR BONDING A SELECTED METAL OF THE CLASS CONSISTING OF ALUMINUM, MAGNESIUM AND ALLOYS THEREOF TO ANOTHER BASE METAL, CONSISTING ESSENTIALLY OF: A FLUXING SALT; A LIQUID SOLVENT HAVING THE CHARACTERISTICS OF A LEWIS BASE TOWARD ZINC HALIDE AS A LEWIS ACID BY FORMING WITH SAID ZINC HALIDE A COORDINATE COMPLEX DECOMPOSING ON HEATING WHILE IN CONTACT WITH SAID SELECTED METALS TO YIELD ZINC AND SELECTED FROM THE CLASS CONSISTING OF ALIPHATIC KETONES OF 3-12 CARBON ATOMS, ALIPHATIC ALCOHOLS OF 1-6 CARBON ATOMS, AQUEOUS FORMALDEHYDE, WATER, ALIPHATIC NITRILES OF 1-6 CARBON ATOMS, METHYL AND ETHYL ESTERS OF ALIPHATIC ACIDS OF 1-8 CARBON ATOMS AND FORMATES AND ACETATES OF ALIPHATIC ALCOHOLS OF 1-5 CARBON ATOMS, ALIPHATIC LACTONES HAVING 3-4 METHYLENE GROUPS IN THE RING, TETRAHYDROFURAN, AND ALIPHATIC ALCOHOL ETHERS HAVING 1-4 CARBON ATOMS IN THE ALKOXYL AND ALCOHOL GROUPS; AN AMOUNT OF ZINC HALIDE BETWEEN ABOUT 10% OF SAID COMPOSITION AND SUBSTANTIALLY COMPLETE SATURATION SOLVENT; AND AN AMOUNT OF AN ADDITIVE METAL IN THE FORM OF HALIDE SALT EFFECTIVE TO RETARD CORROSION IN THE RESULTING BOND, SAID ADDITIVES METAL HALIDE BEING PRESENT IN AN AMOUNT SUFFICIENT TO PROVIDE ADDITIVE METAL IN SAID BOND IN AN AMOUNT OF ABOUT 0.25-3.5% OF THE ZINC IN SAID BOND, AND SAID ADDITIVE METAL BEING SELECTED FROM THE CLASS CONSISTING OF ANTIMONY, BARIUM, CESIUM, CHROMIUM, COPPER, IRON, MANGANESE, SILICON, ZIRCONIUM, AND MIXTURE THEREOF, WHEREBY EXOTHERMIC HEAT WILL DEVELOP DURING SAID BONDING, SAID ZINC HALIDE BEING A MEMBER OF THE CLASS CONSISTING OF ZINC CHLORIDE, ZINC BROMIDE AND ZINC IODIDE.