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EP 0006461 B1 19811104 - ACID BATH FOR ELECTRODEPOSITION OF NICKEL-CONTAINING SULFOBETAINE AS BRIGHTENING AND LEVELLING AGENT

Title (en)

ACID BATH FOR ELECTRODEPOSITION OF NICKEL-CONTAINING SULFOBETAINE AS BRIGHTENING AND LEVELLING AGENT

Publication

EP 0006461 B1 19811104 (DE)

Application

EP 79101652 A 19790530

Priority

DE 2825966 A 19780614

Abstract (en)

[origin: US4212709A] An acidic nickel electroplating bath containing brighteners and levelling agents, wherein the levelling agents are compounds of the formula I <IMAGE> I where N is a hetero-aromatic nitrogen base, R, R1 and R2 are hydrogen or alkyl, R3 is arylene, X is SO3-, Y is a neutralizing cation, n is from 1 to 3 and m is from 1 to 2.5.

IPC 1-7

C25D 3/18

IPC 8 full level

C25D 3/18 (2006.01)

CPC (source: EP US)

C25D 3/18 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

EP 0006461 A1 19800109; EP 0006461 B1 19811104; DE 2825966 A1 19800103; DE 2961219 D1 19820114; JP S552799 A 19800110; US 4212709 A 19800715

DOCDB simple family (application)

EP 79101652 A 19790530; DE 2825966 A 19780614; DE 2961219 T 19790530; JP 7314779 A 19790612; US 3817179 A 19790511