公开(公告)号：US4270988A

公开(公告)日：1981-06-02

申请号：US78139

申请日：1979-09-24

申请人： William E. Eckles ,  Valerie M. Canaris

发明人： William E. Eckles ,  Valerie M. Canaris

IPC分类号： C25D3/26

CPC分类号： C25D3/26

摘要： Cadmium electroplating baths are described which contain as a brightening agent, pyridine compounds having the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each independently hydrogen, alkyl, alkoxy, alkene, mercapto, amino, halogen, aryl, arylalkyl, aminoalkyl, hydroxy, hydroxyalkyl, cyano, dialkylamide, aldoxime, pyrolidinyl groups and the corresponding N-oxide compounds. Semi-bright to bright level cadmium coatings are obtained with these baths.

摘要翻译： 描述了含有作为增白剂的吡啶化合物的镉电镀浴，其具有下式的吡啶化合物：其中R 1，R 2和R 3各自独立地为氢，烷基，烷氧基，烯烃，巯基，氨基，卤素，芳基，芳基烷基，氨基烷基， 羟基，羟基烷基，氰基，二烷基酰胺，醛肟，吡咯烷基和相应的N-氧化物。 这些浴可以获得半明亮到明亮的镉镀层。

公开(公告)号：US5200057A

公开(公告)日：1993-04-06

申请号：US787932

申请日：1991-11-05

申请人： Valerie M. Canaris

发明人： Valerie M. Canaris

IPC分类号： C08L39/06 ,  C08L39/00 ,  C08L71/02 ,  C25D3/22 ,  C25D3/56

CPC分类号： C25D3/22

摘要： An additive composition is described with comprises a mixture of(a) poly(N-vinyl-2-pyrrolidone), and p0 (b) at least one sulfur-containing compound selected from compounds of the formulaeRS(R'O).sub.n H (I)orS--[(R'O).sub.n H].sub.2 (II) wherein R is hydrogen or an alkyl group containing up to about 24 carbon atoms, each R' is independently an alkylene group containing 2 or 3 carbon atoms, and each n is independently an integer of from 1 to about 100.This additive composition is useful in acidic plating baths containing zinc or a mixture of zinc ions and at least one additional metal selected from nickel and cobalt. The plating baths also contain chloride ions or a mixture of chloride and sulfate ions.

公开(公告)号：US4832802A

公开(公告)日：1989-05-23

申请号：US206017

申请日：1988-06-10

申请人： Valerie M. Canaris

发明人： Valerie M. Canaris

IPC分类号： C25D3/56

CPC分类号： C25D3/565

摘要： An aqueous acidic zinc-nickel plating bath is described. The plating baths generally comprise(A) zinc ions;(B) nickel ions;(C) an amount, sufficient to provide a level and bright zinc-nickel alloy electrodeposit, of at least one polymeric sulfur-containing compound having the general formulaRS(R'O).sub.n H (I)orS-[(R'O).sub.n H]2 (II) wherein r is an alkyl group containing up to about 24 carbon atoms, each R' is independently an alkylene group containing 2 or 3 carbon atoms, and each n is independently an integer of from 1 to about 100; and(D) a ductility-improviding amount of at least one acetylenic derivative obtained by sulfonating an intermediate obtained by(D-1) reacting an acetylenic alcohol or diol with a halogenated epoxide; or(D-2) reacting an acetylenic alcohol or diol with an alkylene oxide followed by reaction with a halogenated epoxide.Preferably, additional additives are included in the plating baths to improve the properties of the deposited alloy. For example, aromatic carbonyl-containing compounds to improve the brightness of the alloy, and aromatic sulfonic acids or bath-soluble salts thereof are useful additive as solubilizers. The plating baths of the invention are effective over a wide current density range.

公开(公告)号：US4135991A

公开(公告)日：1979-01-23

申请号：US824043

申请日：1977-08-12

申请人： Valerie M. Canaris ,  William J. Willis

发明人： Valerie M. Canaris ,  William J. Willis

IPC分类号： C25D3/32 ,  C25D3/36 ,  C25D3/60

CPC分类号： C25D3/36 ,  C25D3/32 ,  C25D3/60

摘要： An aqueous acid plating bath for electrodeposition of tin, lead or tin-lead alloys on a substrate is described and comprises at least one metal salt selected from the group consisting of a stannous salt, a lead salt or a mixture of stannous and lead salts, and as a brightener agent, an effective amount of at least one alkoxylated amine of the formula ##STR1## wherein R is a fatty acid alkyl group containing from about 8 to about 22 carbon atoms,R.sup.1 is an alkylene radical containing up to about 5 carbon atoms,R.sup.2 and R.sup.3 are each independently an ethylene or propylene group,A is 0 or 1, andX, y and z are each independently integers from 1 to about 30, and the sum of x, y, and z is an integer of from about 2 to about 50.Methods for the electrodeposition of tin, lead, or tin-lead alloys from such baths as well as additive compositions for forming the baths also are described.

公开(公告)号：US4293391A

公开(公告)日：1981-10-06

申请号：US136515

申请日：1980-04-02

申请人： Valerie M. Canaris

发明人： Valerie M. Canaris

IPC分类号： C25D3/26

CPC分类号： C25D3/26

摘要： Cadmium electroplating baths are described which contain at least one thiourea compound having the general formula:[R.sub.2 N].sub.2 CS (I)wherein each R is independently hydrogen or an alkyl, alkenyl or aryl group. The baths also can contain at least one phosphate, carboxylate, sulfonate or sulfate compound containing one or more alkylene oxide groups containing 2 or 3 carbon atoms and wherein at least one of the alkylene oxide groups in the sulfates is attached to an aryl group, and at least one organic brightener compound and particularly non-sulfur containing compounds such as pyridine brightener compounds.

摘要翻译： 描述了含有至少一种具有以下通式的硫脲化合物的镉电镀浴：[R 2 N] 2 CS（I）其中每个R独立地是氢或烷基，烯基或芳基。 该浴还可含有至少一种含有一个或多个含有2或3个碳原子的环氧烷基团的磷酸盐，羧酸盐，磺酸盐或硫酸盐化合物，并且其中硫酸盐中的至少一个环氧烷基团连接到芳基上， 至少一种有机增白剂化合物，特别是不含硫的化合物如吡啶增白剂化合物。

公开(公告)号：US4162947A

公开(公告)日：1979-07-31

申请号：US908567

申请日：1978-05-22

申请人： Valerie M. Canaris

发明人： Valerie M. Canaris

IPC分类号： C25D3/22

CPC分类号： C25D3/22

摘要： An aqueous acidic plating bath for the electrodeposition of a bright zinc deposit on a substrate is disclosed and comprises zinc ions, ammonium ions and at least one aromatic sulfonic acid or salt having the general formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each independently hydrogen or lower alkyl groups,X is hydrogen, ammonia or any metal with the proviso that the metal sulfonate is soluble in the bath, andA is a saturated, unsaturated or aromatic ring.Additionally, the plating baths of the invention may contain aromatic carbonyl-containing compounds and particularly aromatic aldehydes containing at least one halogen substituent. Polyoxyalkylated naphthols and polyalkylene glycol ethers as well as poly(alkyleneimines) also are contemplated as being useful in the plating baths of the invention. Methods for depositing a bright zinc coating over a wide range of current densities, and additive compositions for preparing plating baths useful in these methods also are described.

摘要翻译： 公开了一种用于在基底上电沉积明亮的锌沉积物的酸性电镀浴，其包含锌离子，铵离子和至少一种具有通式为“I”或“II”的芳香族磺​​酸或盐，其中R1， R2和R3各自独立地为氢或低级烷基，X为氢，氨或任何金属，条件是金属磺酸盐可溶于浴中，A为饱和的，不饱和的或芳香环。