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Ternary azeotropic-like compositions with 1,1,1,2,3,3-hexafluoro-3-methoxy-propane and trans-1,2-dichloroethylene

A technology of azeotropic composition and methoxypropane, which is applied in lubricating compositions, detergent compositions, non-surface active detergent compositions, etc., and can solve problems such as short atmospheric life, low global warming, and low toxicity

Inactive Publication Date: 2014-03-05
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some embodiments, the alternative solvents also have low toxicity and no flash point (as per ASTM D3278-98 e-1, "Flash Point of Liquids by Small Scale Closed-Cup Apparatus" measurement), acceptable stability, short atmospheric lifetime, and low global warming potential

Method used

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  • Ternary azeotropic-like compositions with 1,1,1,2,3,3-hexafluoro-3-methoxy-propane and trans-1,2-dichloroethylene
  • Ternary azeotropic-like compositions with 1,1,1,2,3,3-hexafluoro-3-methoxy-propane and trans-1,2-dichloroethylene

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example

[0067] The preparation, characterization and testing of the azeotrope-like compositions of the present invention are further described in the following examples. The particular materials and amounts thereof, as well as other conditions and details, recited in these examples should not be construed to unduly limit this invention. In these examples, all percentages, proportions and ratios are by weight unless otherwise specified.

[0068] 1,1,1,2,3,3-Hexafluoro-3-methoxy-propane can be purchased from Synquest Labs, Inc, Alachua, FL, trans-1,2-dichloroethylene and the third component can be Available from Aldrich Chemical Company, Inc. (Milwaukee, WI).

example 1-3

[0070] Various mixtures of 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, trans-1,2-dichloroethylene, and the third component were prepared at ambient pressure using the following procedure Distillation (average 731 to 734 torr) was used to identify whether the mixture formed a ternary azeotrope, and if so, record the azeotrope composition and boiling point (bp °C). At least two distillations were carried out and the results averaged. These mixtures were prepared and distilled in a concentric tube distillation column (available from Ace Glass (Vinland, NJ), Model 933) at ambient laboratory pressure (731 to 735 Torr). In each case, the distillation was allowed to equilibrate at full reflux for at least 60 minutes. For each distillation, five consecutive distillate samples (each sample volume approximately 10% of the total liquid charge) were taken while running the distillation column at a liquid reflux ratio of 10 to 1. Then use HP-5890 Series II Plus gas chromatograph (with RTX-...

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Abstract

Ternary azeotrope and azeotrope-like compositions containing 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, trans-1,2-dichloroethylene and a third component, and methods of using azeotropes and azeotrope-like compositions to clean substrates, deposit coatings, transfer thermal energy, and lubricate working operations are described.

Description

technical field [0001] The present invention relates to azeotropes and azeotrope-like compounds containing 1,1,1,2,3,3-hexafluoro-3-methoxy-propane, trans-1,2-dichloroethylene and a third component Compositions, and methods of using azeotropes and azeotrope-like compositions for cleaning substrates, depositing coatings, transferring thermal energy, and lubricating machining operations. Background technique [0002] Chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs) and hydrochlorocarbons (HCCs, such as 1,1,1-trichloroethane and carbon tetrachloride) have been widely used in solvent applications such as drying, Cleaning (eg removal of flux residues from printed circuit boards) and vapor degreasing. These materials are also used in refrigeration and heat transfer processes. However, photolytic and homolytic reactivity at chlorinated carbon sites have been shown to contribute to the depletion of the Earth's ozone layer. Additionally, the long atmospheric lifetime o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/04C10M105/54C11D7/50C23G5/028H01L21/306
CPCC10N2220/12C11D7/509C09K2205/112C11D7/5081C23G5/02806C10M2207/126H01L21/02057C10N2240/30C11D7/5063C09K2205/32C09K2205/122C09K2205/102C10N2220/30C09K5/045Y02C20/30C10M2207/123C10M2207/04C23G5/028C23G5/02803C10N2020/083C10N2020/097C10N2040/30Y02P70/50
Inventor 约翰·G·欧文斯
Owner 3M INNOVATIVE PROPERTIES CO