Bath for electroplating nickel

Claim 1

IN AN ACID NICKEL PLATING BATH CONTAINING NICKEL SULFATE, NICKEL CHLORIDE AND BORIC ACID, THE IMPROVEMENT WHICH COMPRISES ADDING TO SAID BATH A MIXTURE OF A SOLUBLE AND STABLE SUBSTANCE CONSISTING OF THE REACTION PRODUCT OF A POLYALKYLENE AMINE, WHEREIN THE ALKYLENE GROUP HAS FROM 1 TO 6 CARBON ATOMS AND 2 TO 10 ALKYLENE GROUPS, WITH A COMPOUND TAKEN FROM THE CLASS CONSISTING OF (A) COMPOUNDS HAVING THE FORMULA X-R-CHO WHEREIN R REPRESENTS AN UNSATURATED GROUP TAKEN FROM THE CLASS CONSISTING OF ALKYLENE GROUPS HAVING 1 TO 6 CARBON ATOMS, PHENYL AND NAPHTHYL RADICALS HAVING HYDROCARBON SUBSTITUENTS HAVING 1 TO 2 CARBON ATOMS, AND X REPRESENTS 0 TO 3 SUBSTITUENTS TAKEN FROM THE CLASS CONSISTING OF HALOGENS, AMINO, H AND OH, AND (B) COMPOUNDS COMPRISING UNSATURATED ESTERS OF LOWER FATTY ACIDS WHEREIN SAID ACIDS HAVE 1 TO 6 CARBON ATOMS, TOGETHER WITH A SULFONIC PRODUCT OF A MATERIAL TAKEN FROM THE CLASS CONSISTING OF BENZENE, TOLUENE AND NAPHTHALENE HAVING FROM 1 TO 3 SULFONIC GROUPS OF THE FORMULA -SO2R WHEREIN R REPRESENTS A SUBSTITUENT TAKEN FROM THE CLASS CONSISTING OF OH, NH, NH2, H AND ALKALI METAL.