EP0569850A2 - Solution de nettoyage à base d'isopropanol à température d'inflammation élevée - Google Patents

Solution de nettoyage à base d'isopropanol à température d'inflammation élevée Download PDF

Info

Publication number
EP0569850A2
EP0569850A2 EP93107334A EP93107334A EP0569850A2 EP 0569850 A2 EP0569850 A2 EP 0569850A2 EP 93107334 A EP93107334 A EP 93107334A EP 93107334 A EP93107334 A EP 93107334A EP 0569850 A2 EP0569850 A2 EP 0569850A2
Authority
EP
European Patent Office
Prior art keywords
isopropanol
flash point
cleaning solution
based cleaning
pentene
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.)
Withdrawn
Application number
EP93107334A
Other languages
German (de)
English (en)
Other versions
EP0569850A3 (en
Inventor
Wilfried Dr. Becker
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of EP0569850A2 publication Critical patent/EP0569850A2/fr
Publication of EP0569850A3 publication Critical patent/EP0569850A3/de
Withdrawn legal-status Critical Current

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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
    • 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

Definitions

  • Perfluoro-4-methyl-2-pentene is advantageously used in the form of the technical product (bp 45 to 48 ° C.) with a proportion of more than 90% of trans compound, as is obtained in the production of hexafluoropropylene.
  • Perfluoro-4-methyl-2-pentene is the dimer of hexafluoropropylene.
  • the invention thus relates to the use of perfluoro-4-methyl-2-pentene as part of a ternary mixture of isopropanol and water.
  • the invention relates to ternary mixtures of predominantly isopropanol and a minor amount of water, this mixture being saturated with perfluoro-4-methyl-2-pentene.
  • a special embodiment of the invention is a ternary mixture of 82.5% isopropanol, 12.2% water and 5.3% perfluoro-4-methyl-2-pentene, the percentages being based on the weight.
  • this mixture has a flash point of over 50 ° C, while the known mixture of 84.5% isopropanol, 12.5% water and 3% n-perfluorohexane has a flash point of 39 ° C according to this method.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Detergent Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
EP19930107334 1992-05-14 1993-05-06 Isopropanol-based cleaning solution with enhanced flash point Withdrawn EP0569850A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19924215836 DE4215836A1 (de) 1992-05-14 1992-05-14 Reinigungslösung auf Basis von Isopropanol mit erhöhtem Flammpunkt
DE4215836 1992-05-14

Publications (2)

Publication Number Publication Date
EP0569850A2 true EP0569850A2 (fr) 1993-11-18
EP0569850A3 EP0569850A3 (en) 1994-07-06

Family

ID=6458808

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930107334 Withdrawn EP0569850A3 (en) 1992-05-14 1993-05-06 Isopropanol-based cleaning solution with enhanced flash point

Country Status (4)

Country Link
EP (1) EP0569850A3 (fr)
JP (1) JPH0649489A (fr)
CA (1) CA2096211A1 (fr)
DE (1) DE4215836A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7284634B2 (en) 2001-04-13 2007-10-23 Nsk, Ltd. Electric power steering apparatus
US6702060B2 (en) 2001-06-27 2004-03-09 Nsk Ltd. Electric power steering apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9009504D0 (en) * 1990-04-27 1990-06-20 Isc Chemicals Ltd Reduced flammability mixture based on isopropanol

Also Published As

Publication number Publication date
JPH0649489A (ja) 1994-02-22
EP0569850A3 (en) 1994-07-06
DE4215836A1 (de) 1993-11-18
CA2096211A1 (fr) 1993-11-14

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