# US 2010/0163776 A1 · Azeotropic and azeotrope-like compositions of e-1,1,1,4,4,4-hexafluoro-2-butene

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- Number: US 2010/0163776 A1
- Document ID: US20100163776A1
- Status: Published application
- Kind: A1
- Application number: 12/598,038
- Filed: 2008-06-12
- Published: 2010-07-01
- Earliest claimed: 2007-06-12
- Assignees: E.I. du Pont de Nemours and Company
- Inventors: Mark L. Robin
- Web page: https://patentgrep.com/patent/US20100163776A1

## CPC

- C09K 5/045: {containing only fluorine as halogen}
- A62D 1/0057: {Polyhaloalkanes (A62D1/005 takes precedence)}
- A62D 1/0092: {Gaseous extinguishing substances, e.g. liquefied gases, carbon dioxide snow (freons or halons A62D1/005)}
- C08J 9/146: {only fluorine as halogen atoms}
- C08J 9/149: {Mixtures of blowing agents covered by more than one of the groups C08J9/141 - C08J9/143}
- C09K 3/30: for aerosols (aerosol containers B65D83/14)
- C11D 7/505: {Mixtures of (hydro)fluorocarbons}
- C11D 7/5054: {Mixtures of (hydro)chlorofluorocarbons and (hydro) fluorocarbons}
- C11D 7/5072: {Mixtures of only hydrocarbons}
- C11D 7/5086: {the oxygen-containing solvents being different from alcohols, e.g. mixtures of water and ethers}
- C08J 2203/02: CO2-releasing, e.g. NaHCO3 and citric acid
- C08J 2203/14: Saturated hydrocarbons, e.g. butane; Unspecified hydrocarbons
- C08J 2207/04: Aerosol, e.g. polyurethane foam spray
- C09K 2205/126: Unsaturated fluorinated hydrocarbons
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- A62D: CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29)
- C11D: DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL

## Abstract

Azeotropic or azeotrope-like compositions are disclosed. The azeotropic or azeotrope-like compositions are mixtures of E-1,1,1,4,4,4-hexafluoro-2-butene with methyl formate, n-pentane, 2-methylbutane trans-1,2-dichloroethylene, 1,1,1,3,3-pentafluoropropane, n-butane or isobutane. Also disclosed is a process of preparing a thermoplastic or thermoset foam by using such azeotropic or azeotrope-like compositions as blowing agents. Also disclosed is a process of producing refrigeration by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as solvents. Also disclosed is a process of producing an aerosol product by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as heat transfer media. Also disclosed is a process of extinguishing or suppressing a fire by using such azeotropic or azeotrope-like compositions. Also disclosed is a process of using such azeotropic or azeotrope-like compositions as dielectrics.

## Claims

### Claim 1

(canceled)

### Claim 2

(canceled)

### Claim 3

(canceled)

### Claim 4

(canceled)

### Claim 5

(canceled)

### Claim 6

(canceled)

### Claim 7

(canceled)

### Claim 8

(canceled)

### Claim 9

(canceled)

### Claim 10

(canceled)

### Claim 11

(canceled)

### Claim 12

(canceled)

### Claim 13

(canceled)

### Claim 14

(canceled)

### Claim 15

(canceled)

### Claim 16

(canceled)

### Claim 17

(canceled)

### Claim 18

(canceled)

### Claim 19

A composition consisting essentially of:
(a) E-1,1,1,4,4,4-hexafluoro-2-butene; and
(b) a component selected from the group consisting of methyl formate, n-pentane, 2-methylbutane, trans-1,2-dichloroethylene, 1,1,1,3,3-pentafluoropropane, n-butane and isobutane; wherein said component is present in an effective amount to form an azeotrope-like combination with the E-1,1,1,4,4,4-hexafluoro-2-butene.

### Claim 20

A composition consisting essentially of:
(a) E-1,1,1,4,4,4-hexafluoro-2-butene; and
(b) a component selected from the group consisting of n-pentane, 2-methylbutane, n-butane and isobutane; wherein said component is present in an effective amount to form an azeotropic combination with the E-1,1,1,4,4,4-hexafluoro-2-butene.

### Claim 21 (depends on 1)

A process for preparing a thermoplastic or thermoset foam comprising using the azeotrope-like composition of claim 1 as a blowing agent.

### Claim 22 (depends on 2)

A process for preparing a thermoplastic or thermoset foam comprising using the azeotropic composition of claim 2 as a blowing agent.

### Claim 23 (depends on 1)

A process for producing refrigeration comprising condensing the azeotrope-like composition of claim 1 and thereafter evaporating said azeotrope-like composition in the vicinity of the body to be cooled.

### Claim 24 (depends on 2)

A process for producing refrigeration comprising condensing the azeotropic composition of claim 2 and thereafter evaporating said azeotropic composition in the vicinity of the body to be cooled.

### Claim 25 (depends on 1)

A process comprising using the azeotrope-like composition of claim 1 as a solvent.

### Claim 26 (depends on 2)

A process comprising using the azeotropic composition of claim 2 as a solvent.

### Claim 27 (depends on 1)

A process for producing an aerosol product comprising using the azeotrope-like composition of claim 1 as a propellant.

### Claim 28 (depends on 2)

A process for producing an aerosol product comprising using the azeotropic composition of claim 2 as a propellant.

### Claim 29 (depends on 1)

A process comprising using the azeotrope-like composition of claim 1 as a heat transfer media.

### Claim 30 (depends on 2)

A process comprising using the azeotropic composition of claim 2 as a heat transfer media.

### Claim 31 (depends on 1)

A process for extinguishing or suppressing a fire comprising using the azeotrope-like composition of claim 1 as a fire extinguishing or suppression agent.

### Claim 32 (depends on 2)

A process for extinguishing or suppressing a fire comprising using the azeotropic composition of claim 2 as a fire extinguishing or suppression agent.

### Claim 33 (depends on 1)

A process comprising using the azeotrope-like composition of claim 1 as dielectrics.

### Claim 34 (depends on 2)

A process comprising using the azeotropic composition of claim 2 as dielectrics.