| 发明名称 |
Azeotrope (like) compositions with difluoromethoxytetrafluoro-propane and pentafluoropropane, and methods of use |
| 摘要 |
This invention relates to compositions that include at least one fluoroether and at least one hydrofluorocarbon. Included in this invention are compositions of a cyclic or acyclic hydrofluoroether of the formula CaFbH2a+2-bOc wherein a=2 or 3 and 3</=b</=8 and c=1 or 2 and a hydrofluorocarbon of the formula CnFmH2n+2-m wherein 1</=n</=4 and 1</=m</=8. Such compositions may be used as refrigerants, cleaning agents, expansion agents for polyolefins and polyurethanes, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing agents, power cycle working fluids, polymerization media, particulate removal fluids, carrier fluids, buffing abrasive agents, and displacement drying agents.
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| 申请公布号 |
US5779931(A) |
申请公布日期 |
1998.07.14 |
| 申请号 |
US19970871312 |
申请日期 |
1997.06.09 |
| 申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
KLUG, DIANA LYNN;MINOR, BARBARA HAVILAND;PATRON, DONNA MARIE;CHISOLM, TUNEEN E. C.;SIEVERT, ALLEN CAPRON |
| 分类号 |
A62D1/00;C07C19/08;C07C43/12;C08G18/00;C08G18/08;C08J9/14;C09K3/00;C09K3/30;C09K5/04;C23G5/028;C23G5/032;(IPC1-7):C09K5/04;C11D7/26;C11D7/30 |
主分类号 |
A62D1/00 |
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