Aerosol cleaning composition

{
  "publication_number": "US10920181B2",
  "country": "US",
  "kind": "B2",
  "title": "Aerosol cleaning composition",
  "abstract": "A nonflammable aerosol cleaning composition is formulated with trans 1,2 dichloroethylene, 1,1,1,2,2,3,4,5,5,5-decafluoropentane, 1,1,1,3,3 pentafluoropropane, HFC-134a, and carbon dioxide. The aerosol cleaning composition is formulated for heavy duty, high pressure, and high output cleaning applications for cleaning aviation parts, such as jet engines located about 10 feet away from a user.",
  "claims": [
    "1. A nonflammable aerosol cleaning composition, comprising: trans 1,2-dichloroethylene at concentration of about 50% to about 75% by weight of the cleaning composition; 1,1,1,2,2,3,4,5,5,5-decafluoropentane at concentration of about 5% to about 25% by weight of the cleaning composition; 1,1,1,3,3-pentafluoropropane at concentration of about 3% to about 20% by weight of the cleaning composition; and a blend of propellants including 1,1,1,2-tetrafluoroethane (HFC-134a) and carbon dioxide.",
    "2. The nonflammable aerosol cleaning composition of claim 1, wherein the trans 1,2-dichloroethylene is present in a concentration of about 55% to about 70% by weight of the cleaning composition (w/w).",
    "3. The nonflammable aerosol cleaning composition of claim 1, wherein the 1,1,1,2,2,3,4,5,5,5-decafluoropentane is present in a concentration of about 10% to about 20% w/w.",
    "4. The nonflammable aerosol cleaning composition of claim 1, wherein the 1,1,1,3,3 pentafluoropropane is present in a concentration of about 5% to about 15% w/w.",
    "5. The nonflammable aerosol cleaning composition of claim 1, wherein the HFC-134a is present in a concentration of about 5% to about 15% w/w.",
    "6. The nonflammable aerosol cleaning composition of claim 1, wherein the carbon dioxide is present in a concentration of about 2% to about 7% w/w.",
    "7. The nonflammable aerosol cleaning composition of claim 1, wherein a sum of the concentrations of the trans 1,2-dichloroethylene, 1,1,1,2,2,3,4,5,5,5-decafluoropentane, 1,1,1,3,3-pentafluoropropane, HFC-134a, and carbon dioxide is about 100% w/w of the weight of the nonflammable aerosol cleaning composition.",
    "8. The nonflammable aerosol cleaning composition of claim 1, wherein the nonflammable aerosol cleaning composition consists of about 55% to about 70% w/w of trans 1,2-dichloroethylene, about 10% to about 20% w/w of 1,1,1,2,2,3,4,5,5,5-decafluoropentane, about 5% to about 15% w/w of 1,1,1,3,3-pentafluoropropane, about 5% to about 15% w/w HFC-134a, and about 2% to about 7% w/w carbon dioxide.",
    "9. The nonflammable aerosol cleaning composition of claim 1, wherein the aerosol cleaning composition is configured for cleaning a target located about 10 feet away from a user when provided in a high output wasp and hornet aerosol type spray can.",
    "10. The nonflammable aerosol cleaning composition of claim 1, wherein the nonflammable aerosol cleaning composition has no flash point when tested according to 31.4 Ignition Distance Test for Spray Aerosols and 31.5 Enclosed Space Ignition Test of GHS Aerosol Flammability (2009).",
    "11. The nonflammable aerosol cleaning composition of claim 1, wherein the aerosol cleaning composition is configured to conform to the criteria in sections 4.1.1 Appearance, 4.1.2 Odour, 4.1.3 Flash Point, 4.1.4 Residue on Evaporation, and 4.1.7 Freedom form Corrosive Action of Airbus UK ABR 9-0140 General Purpose Cleaning Solvent (Amendment Notice Issue 5 [11 Nov. 2009] to ABR 9-0140 at Issue 6 [February 2000]).",
    "12. The nonflammable aerosol cleaning composition of claim 1, wherein the aerosol cleaning composition is configured to conform to the criteria in Sandwich Corrosion Test, Paint Softening Test, Hydrogen Embrittlement Test, and Stress Corrosion Cracking Test of Boeing D6 17487, Revision T.",
    "13. The nonflammable aerosol cleaning composition of claim 1, wherein the aerosol cleaning composition is configured for cleaning a target located about 10 feet away from a user when provided in a high output wasp and hornet aerosol spray type can."
  ],
  "description_excerpt": "The present disclosure relates to cleaning compositions, and more particularly to aerosol cleaning compositions for heavy duty cleaning of aircraft assemblies.\n\nAircraft assemblies, such as jet engines, are exposed to and thus accumulate hydraulic fluids, pneumatic lubricants, combustion by-products and other types of contaminations. Such accumulations may be cleaned and/or degreased with cleaning compositions. For example, aerosol cleaning compositions may be used to clean jet engine surfaces when a cowl is lifted. However, most conventional aerosol cleaning compositions do not provide sufficient force or output to reach up to the cold section of a jet engine, which may be up to 10 feet away from a user.\n\nFurther, many conventional aerosol jet cleaning compositions may contain toxic solvents, such as n-propyl bromide, and may also be flammable or combustible. Flammability of aerosol compositions may be mitigated with an appropriate combination of solvent(s) and propellant(s). However, the flammability of an aerosol composition typically increases with increase in aerosol output pressure. Thus, controlling flammability becomes more challenging for high pressure and high output aerosol compositions.\n\nThere remains a need, therefore, for improved high pressure, high output aerosol cleaning compositions for cleaning aircraft assemblies.\n\nHigh pressure, high output, nonflammable aerosol cleaning compositions for cleaning and degreasing aircraft assemblies are provided according to various embodiments.",
  "cpc": [
    "C11D 17/0043",
    "C09K 3/30",
    "C11D 3/24",
    "C11D 3/245",
    "C11D 3/43",
    "C11D 7/30",
    "C11D 7/5018"
  ],
  "ipc": [
    "C11D 17/00",
    "C11D 3/24",
    "C11D 3/43",
    "C11D 3/00",
    "C11D 7/30",
    "C11D 7/50"
  ],
  "assignees": [
    "Illinois Tool Works Inc"
  ],
  "inventors": [
    "William C. Martin",
    "Pierce A. Pillon",
    "Mercedita S. Whitmire",
    "Eric J. Martini",
    "Matthew E. Morris"
  ],
  "filing_date": "2018-01-26",
  "publication_date": "2021-02-16",
  "grant_date": "2021-02-16",
  "priority_date": "2017-05-03",
  "application_number": "US-201815881298-A",
  "family_id": "64013967",
  "cited_by_count": 26,
  "citations": [
    "US5023010A",
    "US5098595A",
    "US5827454A",
    "US5730894A",
    "JPH1180791A",
    "JP2972909B2",
    "WO2000017301A1",
    "US6423673B1",
    "US20030141481A1",
    "US20030220218A1",
    "US6746998B2",
    "US20030224956A1",
    "US6770614B2",
    "US20030228997A1",
    "US20090124524A1",
    "CN101605881A",
    "WO2008095881A1",
    "US20130079267A1",
    "EP2109662B1",
    "US7972524B2",
    "EP2712907A1",
    "US20110031436A1",
    "US8680037B2",
    "US20110144216A1",
    "US8623233B2",
    "US20130096218A1",
    "US20120043492A1",
    "US20140083119A1",
    "US20130090280A1",
    "US20130098396A1",
    "US20140261565A1",
    "US20150329806A1",
    "WO2016032802A1",
    "US20170101609A1"
  ]
}