GB1143059A - Powderless etching bath - Google Patents

Powderless etching bath

Info

Publication number
GB1143059A
GB1143059A GB42646/67A GB4264667A GB1143059A GB 1143059 A GB1143059 A GB 1143059A GB 42646/67 A GB42646/67 A GB 42646/67A GB 4264667 A GB4264667 A GB 4264667A GB 1143059 A GB1143059 A GB 1143059A
Authority
GB
United Kingdom
Prior art keywords
acid
sodium
magnesium
monochlorododecyldiphenyl
etchant
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
GB42646/67A
Inventor
James Allen Brown
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Publication of GB1143059A publication Critical patent/GB1143059A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/10—Etching compositions
    • C23F1/14—Aqueous compositions
    • C23F1/42—Aqueous compositions containing a dispersed water-immiscible liquid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • ing And Chemical Polishing (AREA)
  • Road Paving Structures (AREA)
  • Manufacturing Of Printed Circuit Boards (AREA)

Abstract

1,143,059. Etching. DOW CHEMICAL CO. 19 Sept., 1967 [20 Sept., 1966], No. 42646/67. Heading B6J. Magnesium is etched with an etchant comprising: (A) nitric acid, (B) sulphonated monochlorododecyldiphenyl oxide, (C) a liquid organic mixture comprising (1) an aromatic naphtha and (2) an alkyl benzene branched chain hydrocarbon liquid, e.g. dodecyl benzene, and (D) water. After the etching each of a series of magnesium plates, there is added to the etchant a mixture of (a) petroleum sulphonate, (b) sodium monochlorododecyldiphenyl oxide disulphonate, and (c) an aromatic naphtha solvent. Additional optional ingredients are (i) an aliphatic dicarboxylic acid, e.g. adipic acid, (ii) sulphuric acid, or sodium, magnesium, aluminium or ammonium sulphate, or sodium acid sulphate.
GB42646/67A 1966-09-20 1967-09-19 Powderless etching bath Expired GB1143059A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US58062266A 1966-09-20 1966-09-20

Publications (1)

Publication Number Publication Date
GB1143059A true GB1143059A (en) 1969-02-19

Family

ID=24321836

Family Applications (1)

Application Number Title Priority Date Filing Date
GB42646/67A Expired GB1143059A (en) 1966-09-20 1967-09-19 Powderless etching bath

Country Status (8)

Country Link
US (1) US3490968A (en)
BE (1) BE704082A (en)
CH (1) CH500294A (en)
DE (1) DE1621444A1 (en)
GB (1) GB1143059A (en)
NL (1) NL6711856A (en)
NO (1) NO117773B (en)
SE (1) SE300777B (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3152083A (en) * 1961-11-28 1964-10-06 Dow Chemical Co Powderless etching bath additive
US3251777A (en) * 1964-03-02 1966-05-17 Dow Chemical Co Powderless etching bath

Also Published As

Publication number Publication date
US3490968A (en) 1970-01-20
NO117773B (en) 1969-09-22
NL6711856A (en) 1968-03-21
CH500294A (en) 1970-12-15
SE300777B (en) 1968-05-06
BE704082A (en) 1968-03-20
DE1621444A1 (en) 1971-05-13

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