Azeotrope-like compositions of 1,1,1,3,3-pentaflurorpropane and hydrocarbons
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United States of America Patent
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Sep 30, 1997
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app pub date -
Apr 10, 1996
filing date -
Apr 10, 1996
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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.
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