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US 7,473,716 B2Granted
Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and hydrocarbons
AssigneeHoneywell International Inc.
InventorsRobert Christian Parker, Ian Robert Shankland
Life of this patent
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Abstract
Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and at least one hydrocarbon selected from the group n-pentane, iso-pentane, cyclopentane, n-hexane and iso-hexane are provided. The compositions of the invention are useful in the preparation of polyurethane and polyisocyanurate foams.
Claims4
Azeotrope-like compositions consisting essentially of 1,1,1,3,3-pentafluoropropane and isopentane, wherein the 1,1,1,3,3-pentafluoropropane is present in an amount from about 95 to about 30 weight percent and the isopentane is present in an amount from about 5 to about 70 weight percent.
Dependencies are inferred from the claim text.