GB595148A - Improvements in or relating to the electrodeposition of lead - Google Patents

Improvements in or relating to the electrodeposition of lead

Info

Publication number
GB595148A
GB595148A GB343945A GB343945A GB595148A GB 595148 A GB595148 A GB 595148A GB 343945 A GB343945 A GB 343945A GB 343945 A GB343945 A GB 343945A GB 595148 A GB595148 A GB 595148A
Authority
GB
United Kingdom
Prior art keywords
reacted
ethylene oxide
acids
residue
oxide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB343945A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
Filing date
Publication date
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB595148A publication Critical patent/GB595148A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00Electroplating: Baths therefor
    • C25D3/02Electroplating: Baths therefor from solutions
    • C25D3/34Electroplating: Baths therefor from solutions of lead
    • C25D3/36Electroplating: Baths therefor from solutions of lead characterised by the organic bath constituents used

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Polyethers (AREA)

Abstract

As an addition agent in a lead plating bath there is employed a polyether of the general formula R1X[R2O)n(R3O)n1]n11R, where X is oxygen, NH or sulphur, R1 and R are hydrogen, hydroxyl, or a monovalent organic radical, R2 and R3 are bivalent hydrocarbon radicals and n, n1 and n11 are integers. The polyether preferably has a molecular weight of at least 700. It may be derived from polyethylene, propylene, butylene, cyclohexane, or styrene oxides; substitution may be by a monovalent aliphatic radical or by a monovalent isocyclic radical, e.g. a terpineol residue, a b -naphthol residue or a parahydroxydiphenyl residue. Production of polyalkylene oxides having terminal substituents may be brought about by condensing suitable compounds with the alkylene oxide using a large number of moles of the latter to each mole of the former. Substances which may be reacted with polyethylene oxide include (a) monohydric alcohols such as methyl, cetyl, phenyl ethyl and octadecenyl alcohols, (b) polyhydric alcohols such as ethylene glycol, sorbitol and penta-erythritol, (c) aldehydes such as acetaldehyde, myristic aldehyde, benzaldehyde, phenyl acetaldehyde, (d) monocarboxylic acids such as acetic, stearic, benzoic and undecylenic acids, (e) polycarboxylic acids such as oxalic, maleic and phthalic acids, (f) acetals such as acetal and phenyl acetaldehyde dimethyl acetal, (g) phenols such as phenol, catechol, naphthol and cresol, (h) amines such as ethylamine and aniline, (i) amides such as formamide, benzamide and stearic amide, (j) ketones such as acetone, methyl ethyl ketone or acetophenone, (k) unsaturated compounds having an ethylenic or acetylenic linkage. The following are examples of preparations: (i) one-twelfth mol. of terpineol is reacted with one mol. of ethylene oxide, (ii) parahydroxydiphenyl is reacted with 12 molecular equivalents of ethylene oxide, (iii) equimolecular amounts of phenol and ethylene oxide are reacted, (iv) equimolecular amounts of glycerol and ethylene oxide are reacted. The following are also referred to: glycol and polyglycol ethers of isocyclichydroxyl compounds; monocarboxylic acid esters of polyglycerol and its analogues; a compound prepared by introducing an alkylene oxide into a tannic acid solution at 0-10 DEG C. Specifications 317,770, [Class 2 (iii)], 346,550, 380,431, 406,443, 420,518, 432,356, 434,424, 465,048, 488,907 and 505,016 are referred to.
GB343945A 1945-02-12 Improvements in or relating to the electrodeposition of lead Expired GB595148A (en)

Publications (1)

Publication Number Publication Date
GB595148A true GB595148A (en) 1947-11-27

Family

ID=1627682

Family Applications (1)

Application Number Title Priority Date Filing Date
GB343945A Expired GB595148A (en) 1945-02-12 Improvements in or relating to the electrodeposition of lead

Country Status (1)

Country Link
GB (1) GB595148A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE959242C (en) * 1952-06-03 1957-02-28 Gen Motors Corp Bath for the galvanic deposition of antimony or antimony alloys
US2842461A (en) * 1955-12-02 1958-07-08 Hauserman Co E F Lead coating process and material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE959242C (en) * 1952-06-03 1957-02-28 Gen Motors Corp Bath for the galvanic deposition of antimony or antimony alloys
US2842461A (en) * 1955-12-02 1958-07-08 Hauserman Co E F Lead coating process and material

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