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GB1440438A - Cleaning process - Google Patents

Cleaning process

Info

Publication number
GB1440438A
GB1440438A GB4148472A GB4148472A GB1440438A GB 1440438 A GB1440438 A GB 1440438A GB 4148472 A GB4148472 A GB 4148472A GB 4148472 A GB4148472 A GB 4148472A GB 1440438 A GB1440438 A GB 1440438A
Authority
GB
United Kingdom
Prior art keywords
mixture
mixtures
rinsing
vapour
dioxane
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
GB4148472A
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB4148472A priority Critical patent/GB1440438A/en
Priority to US391258A priority patent/US3904430A/en
Priority to BE135080A priority patent/BE804181R/en
Priority to AU59808/73A priority patent/AU481213B2/en
Priority to SE7312141A priority patent/SE392921B/en
Priority to NL7312267A priority patent/NL7312267A/xx
Priority to CH1283173A priority patent/CH579952A5/xx
Priority to IT28648/73A priority patent/IT1053745B/en
Priority to FR7332126A priority patent/FR2198795B2/fr
Priority to DE2345037A priority patent/DE2345037C2/en
Priority to JP48100427A priority patent/JPS4992861A/ja
Priority to DK493473A priority patent/DK150990C/en
Priority to CA180,716A priority patent/CA1011223A/en
Publication of GB1440438A publication Critical patent/GB1440438A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/261—Alcohols; Phenols
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/50—Solvents
    • C11D7/5004—Organic solvents
    • C11D7/5018—Halogenated solvents
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
    • C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/263—Ethers
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/267—Heterocyclic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/28—Organic compounds containing halogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Materials Engineering (AREA)
  • Emergency Medicine (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Detergent Compositions (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Manufacturing Of Printed Wiring (AREA)

Abstract

1440438 Cleaning with non-aqueous solvents IMPERIAL CHEMICAL INDUSTRIES Ltd 9 Aug 1973 [7 Sept 1972] 41484/72 Addition to 1399867 Heading D1P Printed circuits comprising lines of flux on resin-bonded paper boards are cleaned by immersion in a heated non azeotrope-forming mixture of a halogenated hydrocarbon solvent and at least 2.5 parts by weight per 100 parts of halogenated hydrocarbon of an auxiliary solvent and rinsing the article in a second liquid containing a lower proportion of the auxiliary solvent. In one embodiment the rinsing mixture is also heated and the two mixtures have a common vapour zone from which condensate is directed to the rinsing mixture which overflows into the first mixture. A plurality of rinsing mixtures may be employed. Alternatively rinsing may occur in the vapour zone and the printed circuit may be withdrawn from the apparatus and allowed to cool before being rinsed by the vapour. In a further embodiment the two mixtures have separate vapour zones, condensate from both zones being returned to the second mixture. Preferably the auxiliary solvent comprises on a weight basis 5 to 90% of the first mixture and 0.5 to 10% of the second mixture. Preferred solvents are fluorochlorohydrocarbons containing 2 or 3 carbon atoms, especially 1, 1, 2, 2, tetrachloro-1, 2-difluoroethane and 1, 1, 2-trichloro-1, 2, 2-trifluoroethane. Preferred auxiliary solvents are n-butanol, 1- 4-dioxane, 2-methoxy ethanol, 2-ethoxy ethanol and 2-butoxy ethanol. The mixtures are maintained at 30‹ to 50‹C or higher, preferably at their boiling points. Exemplified mixtures are first mixture T.C.T.F.E. containing In example 1 the two mixtures comprise 1, 1, 2-trichloro-1, 2, 2, trifluoroethane with 14.8% and 1.2% respectively of n-butanol, a mixture containing 8.4% n-butanol being added to replace losses. In example 2 the mixtures comprise 9.3% and 2.7% of 1, 4-dioxane and are topped up by a mixture containing 9.8% 1, 4-dioxane.
GB4148472A 1972-09-07 1972-09-07 Cleaning process Expired GB1440438A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
GB4148472A GB1440438A (en) 1972-09-07 1972-09-07 Cleaning process
US391258A US3904430A (en) 1972-09-07 1973-08-24 Cleaning process using a non-azeotrope forming contaminated cleaning mixture
BE135080A BE804181R (en) 1972-09-07 1973-08-29 CLEANING PROCESS
AU59808/73A AU481213B2 (en) 1972-09-07 1973-08-30 Process for cleaning of synthetic organic polymers, plastic, resinous materials, metals or non-metals with fluorochlorohydrocarbon solvents
SE7312141A SE392921B (en) 1972-09-07 1973-09-06 METHOD OF CLEANING A COMBINED ARTICLE BY USING A SOLVENT MIXTURE AND DEVICE FOR IMPLEMENTING THE KIT
NL7312267A NL7312267A (en) 1972-09-07 1973-09-06
CH1283173A CH579952A5 (en) 1972-09-07 1973-09-06
IT28648/73A IT1053745B (en) 1972-09-07 1973-09-06 PROCEDURE AND APPARATUS FOR CLEANING CONTAMINATED ITEMS ESPECIALLY PANELS FOR PRINTED CIRCUITS
FR7332126A FR2198795B2 (en) 1972-09-07 1973-09-06
DE2345037A DE2345037C2 (en) 1972-09-07 1973-09-06 Method of cleaning objects
JP48100427A JPS4992861A (en) 1972-09-07 1973-09-07
DK493473A DK150990C (en) 1972-09-07 1973-09-07 PROCEDURE FOR CLEANING A CONTAMINATED ITEM
CA180,716A CA1011223A (en) 1972-09-07 1973-09-07 Cleaning process using azeotropic mixtures or mixtures capable of forming an azeotrope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4148472A GB1440438A (en) 1972-09-07 1972-09-07 Cleaning process

Publications (1)

Publication Number Publication Date
GB1440438A true GB1440438A (en) 1976-06-23

Family

ID=10419909

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4148472A Expired GB1440438A (en) 1972-09-07 1972-09-07 Cleaning process

Country Status (12)

Country Link
US (1) US3904430A (en)
JP (1) JPS4992861A (en)
BE (1) BE804181R (en)
CA (1) CA1011223A (en)
CH (1) CH579952A5 (en)
DE (1) DE2345037C2 (en)
DK (1) DK150990C (en)
FR (1) FR2198795B2 (en)
GB (1) GB1440438A (en)
IT (1) IT1053745B (en)
NL (1) NL7312267A (en)
SE (1) SE392921B (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4070425A (en) * 1976-02-24 1978-01-24 E. I. Du Pont De Nemours And Company Polyamide gel removal
US4056403A (en) * 1976-05-27 1977-11-01 Olin Corporation Solvent composition used to clean polyurethane foam generating equipment
US4269630A (en) * 1979-10-01 1981-05-26 George M. Stephenson Two-step process and composition for cleaning polished surfaces
US4478364A (en) * 1980-11-07 1984-10-23 Re-Al, Inc. Method of mounting and cleaning electrical slide switch of flush through design
EP0090496B1 (en) * 1982-03-18 1986-01-15 Imperial Chemical Industries Plc Cleaning compositions
US4711256A (en) * 1985-04-19 1987-12-08 Robert Kaiser Method and apparatus for removal of small particles from a surface
US4787941A (en) * 1986-06-30 1988-11-29 Wang Laboratories, Inc. Cleaning method for keyboard assemblies
US4973420A (en) * 1989-05-04 1990-11-27 Hoechst Celanese Corporation Stripper composition for removal of protective coatings
MY107434A (en) * 1989-10-26 1995-12-30 Momentive Performance Mat Jp Cleaning compositions.
WO1991011269A1 (en) * 1990-01-24 1991-08-08 Motorola, Inc. A method for electrical assembly cleaning
US5503681A (en) * 1990-03-16 1996-04-02 Kabushiki Kaisha Toshiba Method of cleaning an object
KR0145061B1 (en) * 1990-03-16 1998-08-17 아오이 죠이치 Method and apparatus for cleaning
US5593507A (en) * 1990-08-22 1997-01-14 Kabushiki Kaisha Toshiba Cleaning method and cleaning apparatus
US5304253A (en) * 1990-09-12 1994-04-19 Baxter International Inc. Method for cleaning with a volatile solvent
US5106425A (en) * 1990-10-22 1992-04-21 Baxter International, Inc. Method for maintaining a flammable solvent in a non-flammable environment
US5113883A (en) * 1990-10-22 1992-05-19 Baxter International Inc. Apparatus for cleaning objects with volatile solvents
US5082503A (en) * 1990-10-22 1992-01-21 Baxter International Inc. Method for removing contaminants from the surfaces of articles
EP0588978B1 (en) * 1991-06-14 1999-01-13 Petroferm Inc. A composition and a process for removing rosin solder flux with terpene and hydrocarbons
US5273592A (en) * 1991-11-01 1993-12-28 Alliesignal Inc. Method of cleaning using partially fluorinated ethers having a tertiary structure
US6355113B1 (en) 1991-12-02 2002-03-12 3M Innovative Properties Company Multiple solvent cleaning system
MX9206771A (en) * 1991-12-02 1993-06-01 Allied Signal Inc IMPROVEMENTS IN MULTIPLE SOLVENT CLEANING SYSTEM
US5401429A (en) * 1993-04-01 1995-03-28 Minnesota Mining And Manufacturing Company Azeotropic compositions containing perfluorinated cycloaminoether
US5494601A (en) * 1993-04-01 1996-02-27 Minnesota Mining And Manufacturing Company Azeotropic compositions
US5482563A (en) * 1993-04-06 1996-01-09 Motorola, Inc. Method for electrical assembly cleaning using a non-azeotropic solvent composition
US6187729B1 (en) * 1993-12-14 2001-02-13 Petroferm Inc. Cleaning composition comprising solvating agent and rinsing agent
US5534078A (en) * 1994-01-27 1996-07-09 Breunsbach; Rex Method for cleaning electronic assemblies

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB440732A (en) * 1934-07-05 1936-01-06 Walter Frederick Jesson Improved apparatus for degreasing metal and like non-absorbent articles
US2153577A (en) * 1935-03-07 1939-04-11 Du Pont Process of degreasing
US2104992A (en) * 1935-04-22 1938-01-11 Wacker Chemie Gmbh Machine for cleaning and degreasing articles
US2162656A (en) * 1935-05-22 1939-06-13 Du Pont Degreasing process
US2220124A (en) * 1938-07-20 1940-11-05 Westvaco Chlorine Products Cor Degreasing
FR1178073A (en) * 1956-07-04 1959-05-04 Montedison Spa Vapor phase process for degreasing metals
NL251879A (en) * 1959-05-22 1900-01-01
NL129954C (en) * 1964-04-02
US3553142A (en) * 1968-12-23 1971-01-05 Allied Chem Azeotrope and solvent compositions based on 1,1,2-trichloro-1,2,2-trifluoroethane and acetonitrile
GB1335705A (en) * 1970-08-03 1973-10-31 Imp Smelting Corp Nsc Ltd Cleaning of articles
US3723332A (en) * 1970-11-27 1973-03-27 Allied Chem Stabilized perchlorofluorocarbon compositions
US3733218A (en) * 1971-11-15 1973-05-15 Diamond Shamrock Corp Removal of solder flux with azeotropic solvent mixtures

Also Published As

Publication number Publication date
FR2198795B2 (en) 1975-03-21
CA1011223A (en) 1977-05-31
AU5980873A (en) 1975-03-06
SE392921B (en) 1977-04-25
IT1053745B (en) 1981-10-10
JPS4992861A (en) 1974-09-04
BE804181R (en) 1974-02-28
US3904430A (en) 1975-09-09
CH579952A5 (en) 1976-09-30
DE2345037C2 (en) 1986-03-13
NL7312267A (en) 1974-03-11
FR2198795A2 (en) 1974-04-05
DK150990B (en) 1987-10-05
DE2345037A1 (en) 1974-03-14
DK150990C (en) 1988-02-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]