Chromium plating process

Claim 1

THE PROCESS FOR PRODUCING A CHROMIUM PLATE ON A PLATABLE SOLID SUBSTRATE IN AN INERT ATMOSPHERE, WHICH PROCESS COMPRISES: CONTACTING SAID SUBSTRATE OVER THE AREA TO BE PLATED WITH (A) A BIS(ARENE) CHROMIUM COMPOUND OF THE FORMULA (AR)2CR WHEREIN AR DESIIGNATES AN ORGANIC HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF AROMATIC HYDRCARBONS CONTAINING AN ISOLATED BENZENE RING AND ARYL-SUBSTITUTED BENZENES, IN MUTUAL CONTACT WITH (B) A CATALYTIC AMOUNT OF A HALOGEN-CONTAINING CATALYST SELECTED FROM THE GROUP CONSISTING OF THE ELEMENTAL HALOGENS, THE HALOGEN-SUBSSTITUTED ALIPHATIC AND AROMATIC HYDROCARBONS CONTAINING FROM 1 TO 20 CARBON ATOMS, THE HALOGENSUBSTITUTED ALIPHATIC HYDROCARBON ETHERS CONSISTING OF CARBON, HYDROGEN, OXYGEN, AND HALOGEN ATOMS AND CONTAINING FROM 2 TO 12 CARBON ATOMS, THE TETRAALKYL AMMONIUM HALIDES CONTTAINING FROM 1 TO 12 CARBON ATOMS IN EACH ALKYL RADICAL, THE AMMONIUM HALIDES, THE INTERHALOGENS, THE HYDROGEN HALIDES, AND THE ALKALI METAL HALIDES, THE HALOGEN MOIETY OF SAID CATALYST HAVING AN ATOMIC NUMBER OF FROM 17 TO 53, SAID CATALYST BEING PRESENT IN AN AMOUNT SUFFICIENT TO CATALYTICALLY LOWER THE THERMAL DECOMPOSITION OF SAID BIS(ARENE) CHROMIUM COMPOUND TO BELOW ABOUT 300*C.; AND HEATING SAID BIS(ARENE) CHROMIUM COMPOUND AND SAID CATALYSST IN CONTACT WITH SAID SUBSTRATE AT A TEMPERATURE OF AT LEAST THE DECOMPOSITION TEMPERATURE OF SAID BIS(ARENE) CHROMIUM COMPOUND IN CONTACT WITH SSAID CATALYST AND BELOW ABOUT 300*C.; THEREBY PRODUCING A CHROMIUM PLATE ON SAID SUBSTRATE.