Abid N Merchant

US Patent:

7476331, Jan 13, 2009

Filed:

Feb 3, 2006

Appl. No.:

11/347391

Inventors:

Abid N. Merchant - Wilmington DE, US
Barbara Haviland Minor - Elkton MD, US
Shoeb A. Moiyadi - San Jose CA, US
Melodie A. Schweitzer - Wilmington DE, US
Allen Capron Sievert - Elkton MD, US

Assignee:

E I Du Pont Nemours and Company - Wilmington DE

International Classification:

C09K 5/04

US Classification:

252 68, 252 67, 510177

Abstract:

The present invention relates to compositions comprising HFC-63-14mcee. The compositions may be azeotropic or azeotrope-like and are useful in cleaning applications, as a defluxing agent, for removing oils or residues from a surface, depositing or removing lubricants from a surface, and as refrigerants or heat transfer fluids in refrigeration systems, air-conditioners and heat pumps.

US Patent:

50664182, Nov 19, 1991

Filed:

Oct 18, 1990

Appl. No.:

7/599283

Inventors:

Abid N. Merchant - Wilmington DE

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

C11D 730
C11D 750
C09K 504
C23G 5028

US Classification:

252172

Abstract:

Azeotropic mixtures of 3-chloro-1,1,1-trifluoropropane (HCFC-253fb) with trans-1,2-dichloroethylene (t-HCC-1130) are useful in solvent cleaning applications.

US Patent:

52466175, Sep 21, 1993

Filed:

Jan 20, 1988

Appl. No.:

7/145920

Inventors:

Abid N. Merchant - Wilmington DE
Akimichi Yokozeki - Winston-Salem NC

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

C11D 730
C11D 750
C23G 5028

US Classification:

252171

Abstract:

Azeotropic mixtures of 1,1-dichloro-1-fluoroethane (HCFC-141b) with methanol or ethanol, the azeotropic mixtures being useful in solvent cleaning applications.

US Patent:

50264982, Jun 25, 1991

Filed:

Oct 3, 1990

Appl. No.:

7/592561

Inventors:

Abid N. Merchant - Wilmington DE

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

C11D 730
C11D 750
C23G 5028
B08B 300

US Classification:

252171

Abstract:

Azeotropic mixtures of 1,1,1,2,3,3-hexafluoro-3-methoxypropane with one of trans-1,2-dichloroethylene (t-HCC-1130), cis-1,2-dichloroethylene (c-HCC-1130), 1,1-dichloro-1,2-difluoroethane (HCFC-132c), or 1,2-dichloro-1,2-difluoroethane (HCFC-132), and the use of such azeotropic mixtures in solvent cleaning applications is disclosed.

US Patent:

57599866, Jun 2, 1998

Filed:

Apr 2, 1997

Appl. No.:

8/831171

Inventors:

Abid Nazarali Merchant - Wilmington DE
Barbara Haviland Minor - Elkton MD
Shoeb Akberali Moiyadi - Hockessin DE

International Classification:

C23G 5028
C08K 504
C11D 730

US Classification:

510415

Abstract:

Azeotropic or azeotrope-like compositions of effective amounts of 1,1,1,2,3,4,4,5,5,5-decafluoropentane, trans-1,2-dichloroethylene, cyclopentane and methanol or 1,1,1,2,3,4,4,5,5,5-decafluoropentane, trans-1,2-dichloroethylene and cyclopentane to form an azeotropic or azeotrope-like composition are disclosed that are useful as cleaning agents, refrigerants, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing agents, expansion agents for polyolefins and polyurethanes and as power cycle working fluids.

US Patent:

58274464, Oct 27, 1998

Filed:

Jan 15, 1997

Appl. No.:

8/784847

Inventors:

Abid Nazarali Merchant - Wilmington DE
Barbara Haviland Minor - Elkton MD

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

C09K 504
C11D 750
C11D 726

US Classification:

252 67

Abstract:

Compositions of nonafluoromethoxybutane and at least one component selected from the group consisting of methanol, ethanol, isopropanol, n-heptane, trans-1,2-dichloroethylene, cis-1,2-dichloroethylene and acetone, and 1,1,1,2,3,4,4,5,5,5-decafluoropentane are described. These compositions are useful as cleaning agents, displacement drying agents, refrigerants, heat transfer media, expansion agents for polyolefins and polyurethanes, aerosol propellants, gaseous dielectrics, fire extinguishing agents, power cycle working fluids, polymerization media, particulate removal fluids, carrier fluids, and buffing abrasive agents.

US Patent:

58514368, Dec 22, 1998

Filed:

May 19, 1997

Appl. No.:

8/848714

Inventors:

Abid Nazarali Merchant - Wilmington DE
Barbara Haviland Minor - Elkton MD
Shoeb Akberali Moiyadi - Hockessin DE

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

C11D 750
C23G 5028
C09K 500

US Classification:

252364

Abstract:

Compositions of nonafluoromethoxybutane and cyclopentane, nonafluoromethoxybutane and cyclohexane; nonafluoromethoxybutane, cyclopentane and acetone, nonafluoromethoxybutane, cyclohexane and acetone, nonafluoromethoxybutane, trans-1,2-dichloroethylene and cyclopentane; and nonafluoromethoxybutane, trans-1,2-dichloroethylene, cyclopentane and methanol are described. These compositions are useful as cleaning agents, displacement drying agents, refrigerants, heat transfer media, expansion agents for polyolefins and polyurethanes, aerosol propellants, gaseous dielectrics, fire extinguishing agents, power cycle working fluids, polymerization media, particulate removal fluids, carrier fluids, and buffing abrasive agents.

US Patent:

51165252, May 26, 1992

Filed:

Oct 18, 1990

Appl. No.:

7/599281

Inventors:

Abid N. Merchant - Wilmington DE

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

C11D 730
C11D 750
C23G 5028
C09K 504

US Classification:

252171

Abstract:

Azeotropic mixtures of dichloropentafluoropropane (HCFC-225) and trans-1,2-dichloroethylene (T-HCC-1130) with methanol or ethanol or isopropanol, are useful in solvent cleaning applications as refrigerants, aerosol propellants and polymer blowing agents.