US20120135905A1 - Aerosol Electrical Contact Cleaning and Lubricating Compound - Google Patents
Aerosol Electrical Contact Cleaning and Lubricating Compound Download PDFInfo
- Publication number
- US20120135905A1 US20120135905A1 US12/956,112 US95611210A US2012135905A1 US 20120135905 A1 US20120135905 A1 US 20120135905A1 US 95611210 A US95611210 A US 95611210A US 2012135905 A1 US2012135905 A1 US 2012135905A1
- Authority
- US
- United States
- Prior art keywords
- solvent
- electrical contact
- aerosol
- contact cleaning
- formulation
- 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.)
- Abandoned
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 33
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 32
- 150000001875 compounds Chemical class 0.000 title claims abstract description 31
- 239000000443 aerosol Substances 0.000 title claims abstract description 21
- 239000002904 solvent Substances 0.000 claims abstract description 39
- 239000000203 mixture Substances 0.000 claims abstract description 26
- 238000009472 formulation Methods 0.000 claims abstract description 21
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000000314 lubricant Substances 0.000 claims abstract description 18
- 239000003380 propellant Substances 0.000 claims abstract description 14
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 10
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical group ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 claims abstract description 5
- -1 alkyl cyclohexane Chemical compound 0.000 claims abstract description 5
- UAEPNZWRGJTJPN-UHFFFAOYSA-N methylcyclohexane Chemical group CC1CCCCC1 UAEPNZWRGJTJPN-UHFFFAOYSA-N 0.000 claims description 6
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 claims description 3
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 claims description 3
- KFUSEUYYWQURPO-OWOJBTEDSA-N trans-1,2-dichloroethene Chemical group Cl\C=C\Cl KFUSEUYYWQURPO-OWOJBTEDSA-N 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 239000000126 substance Substances 0.000 description 3
- FRCHKSNAZZFGCA-UHFFFAOYSA-N 1,1-dichloro-1-fluoroethane Chemical compound CC(F)(Cl)Cl FRCHKSNAZZFGCA-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 229920006397 acrylic thermoplastic Polymers 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000779 depleting effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 2
- BOSAWIQFTJIYIS-UHFFFAOYSA-N 1,1,1-trichloro-2,2,2-trifluoroethane Chemical compound FC(F)(F)C(Cl)(Cl)Cl BOSAWIQFTJIYIS-UHFFFAOYSA-N 0.000 description 1
- AJDIZQLSFPQPEY-UHFFFAOYSA-N 1,1,2-Trichlorotrifluoroethane Chemical compound FC(F)(Cl)C(F)(Cl)Cl AJDIZQLSFPQPEY-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000011086 high cleaning Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/38—Lubricating compositions characterised by the base-material being a macromolecular compound containing halogen
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2213/06—Perfluoro polymers
- C10M2213/0606—Perfluoro polymers used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/14—Electric or magnetic purposes
- C10N2040/17—Electric or magnetic purposes for electric contacts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/04—Aerosols
Definitions
- the present invention relates to an aerosol electrical contact cleaning and lubricating compound. More specifically, but without limitation, the present invention relates to a plastic-safe aerosol cleaning and lubricating compound for use on electrical contacts, connectors, switches, and the like.
- Electrical contact cleaning and lubricating compounds are used during the manufacture and maintenance of electronic and avionics equipment. They are used to clean and lubricate the components prior to final assembly.
- the solvents in these electrical contact cleaning and lubricating compounds remove greases, oils, corrosion preventive compounds, oxidation products, and the like.
- the lubricant reduces friction and wear of electrical contacts.
- Many cleaning and lubricating compounds are in aerosol form. These aerosol cleaning and lubricating compounds typically contain solvents, a lubricant, and a propellant.
- CFC-113 Fluor® TF, trichlorotrifluoroethane
- HCFC-141b 1,1-dichloro-1-fluoroethane
- HFEs Hydrofluoroethers
- PFCs perfluorocarbons
- HFEs and PFCs are not effective in formulating electrical contact cleaning and lubricating compounds using a silicon based oil lubricant, which is the most commonly used lubricant in electrical contact cleaning and lubricating compounds.
- electrical contact cleaning and lubricating compounds that are formulated with partially fluorinated hydrocarbon based solvents, but they are not safe to use on acrylics.
- Plastics are often used as substrates or supports in printed circuit boards, especially in electronic and avionics equipment.
- electronic circuitry is printed on a polycarbonate substrate.
- a conformal coating is then applied to the electronic circuitry for protection against moisture, dust, chemicals, and temperature extremes.
- a popular conformal coating material is acrylic.
- the currently used aerosol contact cleaning and lubricating compounds typically attack acrylic and plastic materials.
- Plastic compatibility is especially important in the aerospace industry because incompatible cleaning and lubricating compounds damage plastic avionic and structural parts. Such damage can compromise aircraft performance.
- the present invention is directed to an aerosol electrical contact cleaning and lubricating compound that meets the needs enumerated above and below.
- the present invention is directed to an aerosol electrical contact cleaning and lubricating compound formulation that includes a first solvent that is a mixture of methyl nanofluoroisobutyl ether and methyl nanofluorobutyl ether, a second solvent that is a dichloroethylene, a third solvent that is an alkyl cyclohexane, a lubricant that is perfluropolyether oil, and a propellant that is a hydrofluorocarbon liquefied gas.
- a first solvent that is a mixture of methyl nanofluoroisobutyl ether and methyl nanofluorobutyl ether
- a second solvent that is a dichloroethylene
- a third solvent that is an alkyl cyclohexane
- a lubricant that is perfluropolyether oil
- a propellant that is a hydrofluorocarbon liquefied gas.
- the aerosol electrical contact cleaning and lubricating compound formulation includes a first solvent, a second solvent, a third solvent, a lubricant, and a propellant.
- the first solvent is a mixture of methyl nanofluoroisobutyl ether and methyl nanofluorobutyl ether.
- the second solvent is a dichloroethylene, while the third solvent is an alkyl cyclohexane.
- the lubricant is perfluropolyether oil, and the propellant is a hydrofluorocarbon liquefied gas.
- the invention will be discussed in a electronics and avionics environment. However, this invention may be utilized on any type of surface that requires cleaning and lubrication.
- the preferred second solvent is trans 1,2-dichloroethylene, while the preferred third solvent is methyl cyclohexane.
- the preferred lubricant is perfluropolyether oil, and the preferred propellant is 1,1,1,2-tetrafluoroethane. However, any lubricant or propellant that is practicable can be utilized.
- the first solvent has a concentration of about 43% by weight of the formulation
- the second solvent has a concentration of about 6% by weight of the formulation
- the third solvent has a concentration of about 12% by weight of the formulation
- the lubricant has a concentration of about 1% by weight of the formulation
- the propellant has a concentration of about 38% by weight of the formulation.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
An aerosol electrical contact cleaning and lubricating compound formulation including a first solvent, a second solvent, a third solvent, a lubricant, and a propellant. The first solvent is a mixture of methyl nanofluoroisobutyl ether and methyl nanofluorobutyl ether. The second solvent is a dichloroethylene, while the third solvent is an alkyl cyclohexane. The lubricant is perfluropolyether oil, and the propellant is a hydrofluorocarbon liquefied gas.
Description
- The invention described herein may be manufactured and used by or for the Government of the United States of America for governmental purposes without payment of any royalties thereon or therefor.
- The present invention relates to an aerosol electrical contact cleaning and lubricating compound. More specifically, but without limitation, the present invention relates to a plastic-safe aerosol cleaning and lubricating compound for use on electrical contacts, connectors, switches, and the like.
- Electrical contact cleaning and lubricating compounds are used during the manufacture and maintenance of electronic and avionics equipment. They are used to clean and lubricate the components prior to final assembly. The solvents in these electrical contact cleaning and lubricating compounds remove greases, oils, corrosion preventive compounds, oxidation products, and the like. The lubricant reduces friction and wear of electrical contacts.
- Many cleaning and lubricating compounds are in aerosol form. These aerosol cleaning and lubricating compounds typically contain solvents, a lubricant, and a propellant. CFC-113 (Freon® TF, trichlorotrifluoroethane) and HCFC-141b (1,1-dichloro-1-fluoroethane) were found to be effective solvents for theses type of cleaning and lubricating compounds. However, both are Ozone Depleting Substances and have been phased out of use. Hydrofluoroethers (HFEs) and perfluorocarbons (PFCs) were developed as substitutes. However, HFEs and PFCs are not effective in formulating electrical contact cleaning and lubricating compounds using a silicon based oil lubricant, which is the most commonly used lubricant in electrical contact cleaning and lubricating compounds. There are also electrical contact cleaning and lubricating compounds that are formulated with partially fluorinated hydrocarbon based solvents, but they are not safe to use on acrylics.
- Plastics are often used as substrates or supports in printed circuit boards, especially in electronic and avionics equipment. Typically, electronic circuitry is printed on a polycarbonate substrate. A conformal coating is then applied to the electronic circuitry for protection against moisture, dust, chemicals, and temperature extremes. A popular conformal coating material is acrylic. The currently used aerosol contact cleaning and lubricating compounds typically attack acrylic and plastic materials.
- An electrical contact cleaning and lubricating compound needs good plastic compatibility, high cleaning efficiency, low flammability, and a high evaporation rate. Plastic compatibility is especially important in the aerospace industry because incompatible cleaning and lubricating compounds damage plastic avionic and structural parts. Such damage can compromise aircraft performance.
- For the foregoing reasons, there exists a need for an electrical contact cleaning and lubricating compound having good cleaning and lubricating ability that does not damage avionic and structural parts.
- The present invention is directed to an aerosol electrical contact cleaning and lubricating compound that meets the needs enumerated above and below.
- The present invention is directed to an aerosol electrical contact cleaning and lubricating compound formulation that includes a first solvent that is a mixture of methyl nanofluoroisobutyl ether and methyl nanofluorobutyl ether, a second solvent that is a dichloroethylene, a third solvent that is an alkyl cyclohexane, a lubricant that is perfluropolyether oil, and a propellant that is a hydrofluorocarbon liquefied gas.
- It is a feature of the present invention to provide an aerosol electrical contact cleaning and lubricating compound that has good cleaning and lubricating ability and does not damage avionic and structural parts.
- It is a feature of the present invention to provide an aerosol electrical contact cleaning and lubricating compound that does not utilize any banned or Ozone Depleting Substances.
- It is a feature of the present invention to provide a formulation for an aerosol electrical contact cleaning and lubricating compound that has high solubility toward lubricants such as silicon based oil.
- It is a feature of the present invention to provide an aerosol electrical contact cleaning and lubricating compound that does not damage plastics or acrylics.
- It is a feature of the present invention to provide an aerosol electrical contact cleaning and lubricating compound that is non-flammable, effective in the removal of the soils commonly encountered in the aerospace industry, and fast drying without causing icing.
- The preferred embodiments of the present invention are illustrated by way of example below. The aerosol electrical contact cleaning and lubricating compound formulation includes a first solvent, a second solvent, a third solvent, a lubricant, and a propellant. The first solvent is a mixture of methyl nanofluoroisobutyl ether and methyl nanofluorobutyl ether. The second solvent is a dichloroethylene, while the third solvent is an alkyl cyclohexane. The lubricant is perfluropolyether oil, and the propellant is a hydrofluorocarbon liquefied gas.
- In the description of the present invention, the invention will be discussed in a electronics and avionics environment. However, this invention may be utilized on any type of surface that requires cleaning and lubrication.
- The preferred second solvent is trans 1,2-dichloroethylene, while the preferred third solvent is methyl cyclohexane. The preferred lubricant is perfluropolyether oil, and the preferred propellant is 1,1,1,2-tetrafluoroethane. However, any lubricant or propellant that is practicable can be utilized.
- In the preferred embodiment of the formulation, the first solvent has a concentration of about 43% by weight of the formulation, the second solvent has a concentration of about 6% by weight of the formulation, the third solvent has a concentration of about 12% by weight of the formulation, the lubricant has a concentration of about 1% by weight of the formulation, and the propellant has a concentration of about 38% by weight of the formulation.
- When introducing elements of the present invention or the preferred embodiment(s) thereof, the articles “a,” “an,” “the,” and “said” are intended to mean there are one or more of the elements. The terms “comprising,” “including,” and “having” are intended to be inclusive and mean that there may be additional elements other than the listed elements.
- Although the present invention has been described in considerable detail with reference to certain preferred embodiments thereof, other embodiments are possible. Therefore, the spirit and scope of the appended claims should not be limited to the description of the preferred embodiment(s) contained herein.
Claims (6)
1. An aerosol electrical contact cleaning and lubricating compound formulation, comprising:
a first solvent, the first solvent being a mixture of methyl nanofluoroisobutyl ether and methyl nanofluorobutyl ether;
a second solvent, the second solvent being a dichloroethylene;
a third solvent, the third solvent being an alkyl cyclohexane;
a lubricant, the lubricant being perfluropolyether oil; and,
a propellant, the propellant being a hydrofluorocarbon liquefied gas.
2. The aerosol electrical contact cleaning and lubricating compound formulation of claim 1 , wherein the dichloroethylene is trans 1,2-dichloroethylene.
3. The aerosol electrical contact cleaning and lubricating compound formulation of claim 1 , wherein the alkyl cyclohexane is methyl cyclohexane.
4. The aerosol electrical contact cleaning and lubricating compound formulation of claim 1 , wherein the hydrofluorocarbon liquefied gas is 1,1,1,2-tetrafluoroethane.
5. An aerosol electrical contact cleaning and lubricating compound formulation, comprising:
a first solvent, the first solvent being a mixture of methyl nanofluoroisobutyl ether and methyl nanofluorobutyl ether;
a second solvent, the second solvent being trans 1,2-dichloroethylene;
a third solvent, the third solvent being methyl cyclohexane;
a lubricant, the lubricant being perfluropolyether oil; and,
a propellant, the propellant is 1,1,1,2-tetrafluoroethane.
6. The aerosol electrical contact cleaning and lubricating compound formulation of claim 5 , wherein the first solvent has a concentration of about 43% by weight of the formulation, the second solvent has a concentration of about 6% by weight of the formulation, the third solvent has a concentration of about 12% by weight of the formulation, the lubricant has a concentration of about 1% by weight of the formulation, and the propellant has a concentration of about 38% by weight of the formulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/956,112 US20120135905A1 (en) | 2010-11-30 | 2010-11-30 | Aerosol Electrical Contact Cleaning and Lubricating Compound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/956,112 US20120135905A1 (en) | 2010-11-30 | 2010-11-30 | Aerosol Electrical Contact Cleaning and Lubricating Compound |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US20120135905A1 true US20120135905A1 (en) | 2012-05-31 |
Family
ID=46127030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US12/956,112 Abandoned US20120135905A1 (en) | 2010-11-30 | 2010-11-30 | Aerosol Electrical Contact Cleaning and Lubricating Compound |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US20120135905A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5760282A (en) * | 1994-09-29 | 1998-06-02 | E. I. Du Pont De Nemours And Company | Process for the manufacture of selected halogenated hydrocarbons containing fluorine and hydrogen and compositions provided therein |
| US20030134763A1 (en) * | 2001-02-06 | 2003-07-17 | General Electric Company | Composition for engine cleaning |
| US20060180785A1 (en) * | 2005-02-09 | 2006-08-17 | Merchant Abid N | Compositions comprising 1,1,1,2,2,3,4,5,5,6,6,7,7,7-tetradecafluoroheptane and uses thereof |
| US20070102021A1 (en) * | 2005-11-01 | 2007-05-10 | Nappa Mario J | Solvent compositions comprising unsaturated fluorinated hydrocarbons |
| US20090305876A1 (en) * | 2006-06-26 | 2009-12-10 | Honeywell International, Inc. | Compositions and Methods Containing Fluorine Substituted Olefins |
-
2010
- 2010-11-30 US US12/956,112 patent/US20120135905A1/en not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5760282A (en) * | 1994-09-29 | 1998-06-02 | E. I. Du Pont De Nemours And Company | Process for the manufacture of selected halogenated hydrocarbons containing fluorine and hydrogen and compositions provided therein |
| US20030134763A1 (en) * | 2001-02-06 | 2003-07-17 | General Electric Company | Composition for engine cleaning |
| US20060180785A1 (en) * | 2005-02-09 | 2006-08-17 | Merchant Abid N | Compositions comprising 1,1,1,2,2,3,4,5,5,6,6,7,7,7-tetradecafluoroheptane and uses thereof |
| US20070102021A1 (en) * | 2005-11-01 | 2007-05-10 | Nappa Mario J | Solvent compositions comprising unsaturated fluorinated hydrocarbons |
| US20090305876A1 (en) * | 2006-06-26 | 2009-12-10 | Honeywell International, Inc. | Compositions and Methods Containing Fluorine Substituted Olefins |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AS | Assignment |
Owner name: DEPT OF THE NAVY- NAWC-AD, MARYLAND Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HAN, YOUNG;REEL/FRAME:025431/0501 Effective date: 20101118 |
|
| STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |