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1. WO1996002607 - REFRIGERANT COMPOSITIONS

Publication Number WO/1996/002607
Publication Date 01.02.1996
International Application No. PCT/US1995/008592
International Filing Date 10.07.1995
Chapter 2 Demand Filed 15.01.1996
IPC
C09K 5/04 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
5Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
02Materials undergoing a change of physical state when used
04the change of state being from liquid to vapour or vice-versa
CPC
C09K 2205/106
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
2205Aspects relating to compounds used in compression type refrigeration systems
10Components
106Carbon dioxide
C09K 2205/32
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
2205Aspects relating to compounds used in compression type refrigeration systems
32The mixture being azeotropic
C09K 5/045
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
5Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
02Materials undergoing a change of physical state when used
04the change of state being from liquid to vapour or vice versa
041for compression-type refrigeration systems
044comprising halogenated compounds
045containing only fluorine as halogen
Applicants
  • E.I. DU PONT DE NEMOURS AND COMPANY [US/US]; 1007 Market Street Wilmington, DE 19898, US
Inventors
  • BIVENS, Donald, Bernard; US
Agents
  • KING, Karen, K. ; E.I. du Pont de Nemours and Company Legal/Patent Records Center 1007 Market Street Wilmington, DE 19898, US
Priority Data
08/274,88614.07.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) REFRIGERANT COMPOSITIONS
(FR) COMPOSITIONS REFRIGERANTES
Abstract
(EN)
An azeotrope-like composition consisting essentially of 49-55 weight percent difluoromethane, 40-49.5 weight percent pentafluoroethane and 0.5-5 carbon dioxide, wherein when up to 50 weight percent of an initial composition is evaporated, the vapor pressure of the composition changes by less than about 10 percent.
(FR)
Composition de type azéotrope constituée essentiellement de 49 à 55 % en poids de difluorométhane, de 40 à 49,5 % en poids de pentafluoroéthane et de 0,5 à 5 % en poids de dioxyde de carbone, dans laquelle jusqu'à 50 % en poids d'une composition initiale est évaporé, la pression de vapeur de la composition changeant d'au moins environ 10 %.
Also published as
Latest bibliographic data on file with the International Bureau