Bivens Donald B. (Kennett Square PA) Lunger Brooks S. (Coatesville PA)
출원인 / 주소
E. I. Du Pont de Nemours and Company (Wilmington DE 02)
인용정보
피인용 횟수 :
10인용 특허 :
0
초록▼
Azeotrope-like blends are disclosed comprising effective amounts of 1,1,1,2-tetrafluoroethane (HFC-134a), 1,1-difluoroethane (HFC-152a) and a halocarbon selected from the group consisting of 2-chloro-1,1,1,2-tetrafluoroethane (HCFC-124), 2-chloro-1,1,2,2-tetrafluoroethane (HCFC-124a), 1-hydroperfluo
Azeotrope-like blends are disclosed comprising effective amounts of 1,1,1,2-tetrafluoroethane (HFC-134a), 1,1-difluoroethane (HFC-152a) and a halocarbon selected from the group consisting of 2-chloro-1,1,1,2-tetrafluoroethane (HCFC-124), 2-chloro-1,1,2,2-tetrafluoroethane (HCFC-124a), 1-hydroperfluoropropane (HFC-227ca), 2-hydroperfluoropropane (HFC-227ea), and mixtures thereof.
대표청구항▼
A composition consisting essentially of an azeotrope-like blend consisting of 40 to 60 weight percent of 1,1,1,2-tetrafluoroethane, 2 to 40 weight percent of 1,1-difluoroethane and 2 to 40 weight percent of a halocarbon selected from the group consisting of 2-chloro-1,1,1,2-tetrafluoroethane, 2-chlo
A composition consisting essentially of an azeotrope-like blend consisting of 40 to 60 weight percent of 1,1,1,2-tetrafluoroethane, 2 to 40 weight percent of 1,1-difluoroethane and 2 to 40 weight percent of a halocarbon selected from the group consisting of 2-chloro-1,1,1,2-tetrafluoroethane, 2-chloro-1,1,2,2-tetrafluoroethane, monohydroperfluoropropane, and mixtures of 2-chloro-1,1,2,2-tetrafluoroethane and 2-hydroperfluoropropane said blend having an initial vapor pressure substantially equal to the vapor pressure of dichlorodifluoromethane over the temperature range of about 0°C. to 100°C., and wherein said vapor pressure does not decline more than 10% during evaporation of up to about 50 weight percent of the original blend.
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이 특허를 인용한 특허 (10)
Bartlett Philip Lee ; Bivens Donald Bernard ; Lunger Brooks Shawn ; Yokozeki Akimichi, Azeotropic and azeotrope-like compositions of 1,1,2,2-tetrafluoroethane.
Mahler Barry A. ; Rao V. N. Mallikarjuna ; Sievert Allen Capron ; Subramanian Munirpallam A. ; Warwas Edwin James, Compositions comprising hydrofluorocarbons and their manufacture.
Blanpied, Robert H.; Thornsberry, James Darryl; Silverberg, Steven E.; Lattner, James R.; McMullen, C. Harry; Sanchez, Leonel E.; Wu, Tronze-I Dennis, Method of producing rigid foams and products produced therefrom.
Manogue, William H.; Rao, V. N. Mallikarjuna; Sievert, Allen Capron; Swearingen, Steven H., Process for the manufacture of 1,1,1,3,3-pentafluoropropene, 2-chloro-pentafluoropropene and compositions comprising saturated derivatives thereof.
V. N. Mallikarjuna Rao ; Allen Capron Sievert, Processes for the manufacture of 1,1,1,3,3-pentafluoropropene, 2-chloro-pentafluoropropene and compositions comprising saturated derivatives thereof.
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