Azeotrope-like compositions and their use

Details Azeotrope-like compositions and their use Azeotrope-like compositions and their use

1998-08-06

2000-05-16

Skane, Christine

Cleaning compositions for solid surfaces, auxiliary compositions

Cleaning compositions or processes of preparing

Liquid composition

106311, 134 42, 252 67, C11D 726, C11D 760

Patent

active

06063748&

ABSTRACT:
The invention provides azeotrope-like compositions consisting essentially of R.sub.f OC.sub.2 H.sub.5, where R.sub.f is a branched or straight chain perfluoroalkyl group having 4 carbon atoms, and an organic solvent selected from the group consisting of: straight chain, branched chain and cyclic alkanes having 6 to 8 carbon atoms; esters having 4 carbon atoms; ketones having 4 carbon atoms; disiloxanes having 6 carbon atoms; cyclic and acyclic ethers having 4 to 6 carbon atoms; chlorinated alkanes having 3 to 4 carbon atoms and chlorinated alkenes having 2 carbon atoms. The compositions are useful for cleaning, as solvents or carriers for coating and as heat transfer materials.

REFERENCES:
patent: 2713593 (1955-07-01), Brice et al.
patent: 3394878 (1968-07-01), Eiseman
patent: 3900372 (1975-08-01), Childs et al.
patent: 3903012 (1975-09-01), Brandreth
patent: 5023009 (1991-06-01), Merchant
patent: 5023010 (1991-06-01), Merchant
patent: 5034424 (1991-07-01), Wenning et al.
patent: 5064560 (1991-11-01), Merchant
patent: 5091104 (1992-02-01), Van Der Puy
patent: 5098595 (1992-03-01), Merchant
patent: 5125978 (1992-06-01), Flynn et al.
patent: 5137932 (1992-08-01), Behme et al.
patent: 5211873 (1993-05-01), Dams et al.
patent: 5264462 (1993-11-01), Hodson et al.
patent: 5273592 (1993-12-01), Li
patent: 5275669 (1994-01-01), VanDer Puy et al.
patent: 5466877 (1995-11-01), Moore
patent: 5484546 (1996-01-01), Minor et al.
patent: 5756002 (1998-05-01), Chen et al.
patent: 5827446 (1998-10-01), Merchant et al.
1995 American Chemical Society. Predictions of Azeotropes Formed from Fluorinated Ethers, Ethanes, and Propanes. Authors: Gage, C.L.; Kazachki, G.S. Report date: 1992. No month available.
Preparation, Properties and Industrial Applications of Organofluorine Compounds, R.E. Banks, ed., John Wiley and Sons, New York, 1982, pp. 19-43. No month available.
P.S. Zurer, "Looming Ban on Production of CFCs, Halons Spurs Switch to Substitutes," Chemical & Engineering News, p. 12, Nov. 15, 1993.
Y. Tang, Atmospheric Fate of Various Fluorocarbons, M.S. Thesis, Massachusetts Institute of Technology (1993). No month available.
H. Kobler et al., Justus Liebigs Ann. Chem, 1978, 1937.
Cooper et al., Atmos. Environ., 26A, 7, 1331 (1992). No month available.
Intergovernmental Panel,Climate Change: The IPCC Scientific Assessment, Cambridge University Press (1990).
B.N. Ellis, Cleaning and Contamination of Electronics Components and Assemblies, Electrochemical Publications Limited, Ayr, Scotland, pp. 182-194 (1996). No month available.
M.C. Sneed and R.C. Brasted, Comprehensive Inorganic Chemistry, vol. Six (The Alkali Metals), pp. 61-64, D. Van Nostrand Company, Inc., New York (1957). No month available.

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