Patent · US Expired

Refrigerant of 1,1-difluoroethylene

US6054064A · kind A · utility

21Cited by
7References
19Claims
0Family size

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Key dates

Filing dateJul 9, 1997
Grant dateApr 25, 2000
Priority date
Expiry dateJul 9, 2017

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09K2205/22
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Refrigerants comprising 1,1-difluoroethylene and one or more hydrofluoroalkanes, in particular difluoromethane (R-32), trifluoromethane (R-23), 1,1-difluoroethane (R-152a), 1,1,1-trifluoroethane (R-143a), 1,1,1,2-tetrafluoroethane (R-134a) and/or pentafluoroethane (R-125).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.