GB928165A - Etching process and improved etching bath - Google Patents

Etching process and improved etching bath

Info

Publication number
GB928165A
GB928165A GB1949560A GB1949560A GB928165A GB 928165 A GB928165 A GB 928165A GB 1949560 A GB1949560 A GB 1949560A GB 1949560 A GB1949560 A GB 1949560A GB 928165 A GB928165 A GB 928165A
Authority
GB
United Kingdom
Prior art keywords
acid
amounts
litre
grams
present
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
GB1949560A
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 GB928165A publication Critical patent/GB928165A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

928,165. Etching. DOW CHEMICAL CO. June 2, 1960 [June 12, 1959], No. 19495/60. Class 100 (2). A powderless etching process utilizes an aqueous bath containing (1) a dilute strong acid, (2) a water-immiscible organic fluid, (3) a filming agent, and (4) a film-controlling agent comprising one or more carboxylic acids or their salts. (1) The acid is present in amounts from 30-200 grams/litre, and is generally nitric acid. Small amounts of sulphuric, hydrochloric or acetic acid may be added. (2) The organic fluid is present in amounts from 3-150 grams/litre, and is a hydrocarbon aromatic, B.P. 90- 390‹ C., e.g. ligroin, kerosene, gas oils, diethylbenzenes, tetramethylbenzenes, diisopropylbenzenes, dodecylbenzenes, turpentine, monochlorethylbenzene, ethylbutyl ketone, isophorone, methylhexyl ketone, d-limonene, diisodecyl phthalate or dicapryladipate; in general, esters, ketones, terpenes, ethers, aliphatic, naphthenic and aromatic hydrocarbons are usable. (3) The filming agent is present in amounts from 0.2-20 grams/litre, and examples are petroleum sulphonic acids or salts thereof, sulphonated esters of succinic acid, sulphated fats, oils and waxes, halogenated diaryloxide sulphonates, alkyl benzene sulphonates, alkyl naphthalene sulphonates, or sulphonated esters, amides and ethers. (4) The film-controlling agent is present in amounts from 0.05-3 grams/litre, and may be sodium benzoate, adipic acid, maleic acid, succinic acid, pimelic acid, stearic acid, azelaic acid, arachidic acid, behenic acid, cetoleic acid, caprylic acid, capric acid, lauric acid, linolic acid, myristic acid, oleic acid, palmitic acid, ricinoleic acid or suberic acid. Specifications 703,814, 709,315, 725,110, 818,744, 928,164 and 928,166 are referred to.
GB1949560A 1959-06-12 1960-06-02 Etching process and improved etching bath Expired GB928165A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81982259A 1959-06-12 1959-06-12

Publications (1)

Publication Number Publication Date
GB928165A true GB928165A (en) 1963-06-06

Family

ID=25229164

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1949560A Expired GB928165A (en) 1959-06-12 1960-06-02 Etching process and improved etching bath

Country Status (4)

Country Link
BE (1) BE591777A (en)
CH (1) CH381711A (en)
GB (1) GB928165A (en)
MY (1) MY6500044A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2182845A2 (en) * 1972-03-29 1973-12-14 Mona Industries Inc

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2182845A2 (en) * 1972-03-29 1973-12-14 Mona Industries Inc

Also Published As

Publication number Publication date
MY6500044A (en) 1965-12-31
BE591777A (en) 1960-12-12
CH381711A (en) 1964-09-15

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