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Compositions containing fluorine substituted olefins and methods and systems using same

  • US 9,708,537 B2
  • Filed: 04/04/2014
  • Issued: 07/18/2017
  • Est. Priority Date: 10/25/2002
  • Status: Expired due to Term
First Claim
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1. A method for providing a system for cooling air in an automobile comprising:

  • (a) providing in the automobile a vapor compression air conditioning system having at least one compressor and at least one condenser; and

    (b) providing a heat transfer composition in said system, said heat transfer composition consisting essentially of;

    (i) at least about 70% by weight of a refrigerant;

    (1) having no substantial acute toxicity as measured by inhalation exposure to mice and rats;

    (2) having a global warming potential of not greater than 150; and

    (3) comprising a fluoroalkene consisting essentially of 1, 3, 3, 3-tetrafluoropropene (HFO-1234ze), wherein said HFO-1234ze comprises at least about 97% by weight of transHFO-1234ze; and

    (ii) lubricant consisting essentially of polyalkylene glycol(s) and/or polyol ester(s).

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