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US 7,597,818 B2Granted
Azeotrope-like compositions of tetrafluoropropenes and bromofluoropropenes
AssigneeHoneywell International Inc.
InventorsRajiv R Singh, David P Wilson, Ian Shankland, Hang T Pham
Life of this patent
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Abstract
Mixtures of tetrafluoropropenes with bromofluoropropenes provide compositions that have boiling points within an acceptable range, have good chemical stability, low GWP and are essentially non-flammable.
Claims24
An azeotrope-like composition consisting essentially of about 1 to about 60 wt. % 2-bromopentafluoropropene and about 40 to about 99 wt. % of a tetrafluoropropene selected from the group consisting of 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene.
Dependencies are inferred from the claim text.