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Columbia Chemical Corporation Patents
Assignee:
Columbia Chemical Corporation
Address:
Brunswick, OH
No. of patents:
12
Patents:












Patent Number Title Of Patent Date Issued
6830674 Brightener additive and bath for alkaline cyanide-free zinc electroplating December 14, 2004
An aqueous alkaline non-cyanide zinc electroplating bath containing zinc ions for producing bright electrodeposits of zinc and a brightening agent comprising a polymeric quaternary amine and a reducing sugar, and a compound that forms a reducing sugar upon hydrolysis.
4545870 Aqueous acid plating bath and brightener composition for producing bright electrodeposits of tin October 8, 1985
A tin brightener for an electroplating bath contains various trialkoxybenzaldehydes for producing uniform desposits over a very broad current density range.
4530741 Aqueous acid plating bath and brightener composition for producing bright electrodeposits of tin July 23, 1985
A tin brightener composition and plating bath utilizes a disubstituted naphthalene having at least one substituted aldehyde group thereon.
4417957 Aqueous acid plating bath and brightener mixture for producing semibright to bright electrodepos November 29, 1983
A tin brightener mixture for plating baths comprises chlorinated acetophenones, emulsifying agents, and acrylic or methacrylic acid. Additionally, aromatic aldehydes can be utilized. The tin brightener yields semibright to bright deposits from 0 to over 150 amps per square foot.
4251331 Baths and additives for the electroplating of bright zinc February 17, 1981
A brightening agent is provided for the electrodeposition of zinc from an aqueous acid plating bath. The brightening agent is composed of an alpha-amino aliphatic carboxylic acid, a nonionic surface active compound and a carbonyl compound. The brightening agent may be added to an ele
4100040 Electrodeposition of bright zinc utilizing aliphatic ketones July 11, 1978
A zinc brightener additive compises a polymeric amine selected from the class consisting of a linear aliphatic amine polymer, an aminated polyepichlorohydrin, a polyethylenimine, and combinations thereof, a propylene oxide-ethylene oxide block copolymer prepared by the sequential add
4072582 Aqueous acid plating bath and additives for producing bright electrodeposits of tin February 7, 1978
An aqueous acid tin electroplating bath contains as a brightening agent certain dialkoxy benzaldehydes, an emulsifying agent, as well as alpha, beta unsaturated carboxylic acids, amides, and esters to give extremely bright electrodeposits.
4061547 Acidic plating bath and additives for electrodeposition of bright tin December 6, 1977
An aqueous acid tin electroplating bath contains as a brightening agent compounds having the formula: ##STR1## where O is oxygen and A is selected from the class consisting of hydrogen, hydroxy alkyl, polyalkoxy, and 3-sulfopropyl, certain emulsifying agents and certain synergist
4049510 Baths and additives for the electrodeposition of bright zinc September 20, 1977
A zinc brightener additive comprises a polymeric amine selected from the class consisting of a linear aliphatic amine polymer, an aminated polyepichlorohydrin, a polyethylenimine, and combinations thereof, and a propylene oxide-ethylene oxide block copolymer prepared by the sequential
4007098 Baths and additives for the electrodeposition of bright zinc February 8, 1977
It has been found that a linear aliphatic amine polymer obtained from the reaction of a linear aliphatic polyamine and an epihalohydrin results in an acid zinc electroplating bath brightener.Additionally, when dissolved in an aqueous, acid zinc electroplating bath, the linear aliphatic a
3988219 Baths and additives for the electrodeposition of bright zinc October 26, 1976
It has been found that aminated polyepichlorohydrins prepared by reacting polyepichlorohydrin with an amine selected from the group consisting of secondary aliphatic amines and secondary alicyclic amines result in a zinc electroplating bath brightener. Additionally, an aqueous, acid
3977949 Acidic plating bath and additives for electrodeposition of bright tin August 31, 1976
An aqueous acid tin electroplating bath contains as a brightening agent an alkoxy naphthalene carboxaldehyde, certain emulsifying agents and certain synergistically acting carboxylic acids, amides, and esters to give extremely bright electrodeposits.

 
 
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