公开(公告)号：EP0786539A2

公开(公告)日：1997-07-30

申请号：EP97100964.2

申请日：1997-01-22

Applicant: ELF ATOCHEM NORTH AMERICA, INC.

Inventor： Martyak, Nicholas M. ,  Corsentino, John A. ,  Rohling, Frederik L. ,  Kasper, Marie M.

IPC: C25D3/22 ,  C25D3/56

CPC classification number: C25D3/22 ,  C25D3/565

Abstract: The inventors disclose a process for reducing high current density edge buildup dendrite formation, edge burn, controlling high current density roughness, grain size, and orientation of a zinc coating obtained from an aqueous zinc acidic electrogalvanic coating bath comprising passing a high density current from a zinc anode in the bath to a metal cathode in the bath for a period of time sufficient to deposit a zinc coating on the cathode. The bath contains greater than about 5g/l of a water soluble zinc organosulfonate. A random or block polyoxyalkylene glycol homopolymer or copolymer based on 2 to about 4 carbon atom alkylene oxides. The inventors employ current densities from about 250 to about 4,000 ASF, and optionally, a sulfonated condensation product of naphthalene and formaldehyde, a boron oxide compound, and a lignin compound. The invention also comprises bath compositions.

Abstract translation: 本发明人公开了用于减少高电流密度边缘堆积枝晶形成，边缘的过程燃烧，控制高电流密度粗糙度，晶粒大小，和从在wässrige锌酸性electrogalvanic镀浴包括使高密度的电流从一个所获得的锌镀层的取向 锌阳极在浴中在浴中一段时间​​，足以在阴极上淀积锌镀层的金属阴极。 电解液中含有低于约5克/升的水溶性锌organosulfonates的更大。 的无规或嵌段聚氧化烯二醇均聚物或共聚物根据2至约4个碳原子的氧化烯。 本发明人采用约250的电流密度至约4,000 ASF，并且任选地，萘和甲醛，氧化硼化合物，和木素化合物的磺化缩合产物。 因此，本发明包括组合物浴。

公开(公告)号：EP0786539A3

公开(公告)日：1997-08-20

申请号：EP97100964.2

申请日：1997-01-22

Applicant: ELF ATOCHEM NORTH AMERICA, INC.

Inventor： Martyak, Nicholas M. ,  Corsentino, John A. ,  Rohling, Frederik L. ,  Kasper, Marie M.

IPC: C25D3/22 ,  C25D3/56

CPC classification number: C25D3/22 ,  C25D3/565

Abstract: The inventors disclose a process for reducing high current density edge buildup dendrite formation, edge burn, controlling high current density roughness, grain size, and orientation of a zinc coating obtained from an aqueous zinc acidic electrogalvanic coating bath comprising passing a high density current from a zinc anode in the bath to a metal cathode in the bath for a period of time sufficient to deposit a zinc coating on the cathode. The bath contains greater than about 5g/l of a water soluble zinc organosulfonate. A random or block polyoxyalkylene glycol homopolymer or copolymer based on 2 to about 4 carbon atom alkylene oxides. The inventors employ current densities from about 250 to about 4,000 ASF, and optionally, a sulfonated condensation product of naphthalene and formaldehyde, a boron oxide compound, and a lignin compound. The invention also comprises bath compositions.

Abstract translation: 本发明人公开了一种减少高电流密度边缘堆积枝晶形成，边缘烧伤，控制从含水锌酸锌电镀液获得的锌涂层的高电流密度粗糙度，晶粒尺寸和取向的方法，包括使高密度电流从 在浴中的锌阳极与浴中的金属阴极接触足以在阴极上沉积锌涂层的一段时间。 该浴含有大于约5g / l的水溶性有机磺酸锌。 基于2至约4个碳原子烯化氧的无规或嵌段聚氧化烯二醇均聚物或共聚物。 发明人采用约250至约4,000ASF的电流密度，以及任选的萘和甲醛的磺化缩合产物，氧化硼化合物和木质素化合物。 本发明还包含浴组合物。