ACID ZINC ELECTROLYTIC COATING BATHS, CONTAINING POLYACRYLAMIDE POLYMERS, AND METHOD FOR DEPOSITING ZINC USING THE SAME

摘要

P ACID ZINC ELECTROLYTIC COATING BATHS ARE PROVIDED AND A GLOSSY ZINC COATING PROCESS EMPLOYING SUCH BATHS WHICH CONTAIN AN EFFICIENT QUANTITY OF A CONTROLLED MIXTURE OF GLOSS AGENTS, CONTAINING A POLYACRYLAMID POLYMER N-SUBSTITUTED POLYACRYLAMIDE DERIVATIVES, AND ITS COPOLYMERS, AS MAIN GLOSS PRODUCTS, IN COMBINATION WITH A SECONDARY GLOSS PRODUCT COMPRISING BORIC ACID AND ITS SALTS WITH GROUP I AND GROUP II AND GROUP II AND GROUP II METALS ITS N-SUBSTITUTED DERIVATIVES AND SELECTED ADDITION PRODUCTS; THE ACID ZINC ELECTROLYTIC COATING BATH, INCORPORATING THE MIXTURE OF MAIN AND SECONDARY GLOSS AGENTS, IS ECONOMICAL AND OF GENERAL PURPOSE, AND PROVIDES DUCTILE COATING DEPOSITS, WITH A GLOSSY LOOK. /P