Stabilized Iodocarbon Compositions
OwnerRajiv R. Singh, Haridasan K. Nair +3inventors
InventorsRajiv R. Singh, Haridasan K. Nair, Raymond H. Thomas, Lawrence A. Ford, David P. Wilson
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Abstract
Disclosed are compositions comprising at least one iodocarbon compound and preferably at least one stabilization agent comprising a diene-based compound. These compositions are generally useful as refrigerants for heating and cooling, as blowing agents, as aerosol propellants, as solvent composition, and as fire extinguishing and suppressing agents.
Claims84
A heat transfer composition comprising:
- (a) at least one iodocarbon;
- and
- (b) at least one diene-based compound in an amount effective to stabilize said at least one iodocarbon against degradation.
An iodocarbon containing composition stabilized against decomposition of carbon-iodine bonds comprising:
- (a) at least one iodocarbon;
- and
- (b) at least one diene-based composition in an amount effective to stabilize said at least one iodocarbon against degradation.
A method of stabilizing a composition comprising providing an iodocarbon containing composition and contacting said composition with a diene-based compound.
A heat transfer composition comprising:
- (a) at least one fluoroalkene of Formula I:
- XCFzR3-z (I)
- where X is a C2 or a C3 unsaturated, substituted or unsubstituted, alkyl radical, R is independently Cl, F, Br, I or H, and z is 1 to 3;
- (b) at least one iodocarbon.
A heat transfer composition comprising iodofluorocarbon and at least one compounds selected from the group consisting of difluoromethane (HFC-32), pentafluoroethane (HFC-125), 1,1,2,2-tetrafluoroethane (HFC-134), 1,1,1,2-tetrafluoroethane (HFC-134a), difluoroethane (HFC-152a), 1,1,1,2,3,3,3-Heptafluoropropane (HFC-227ea), 1,1,1,3,3,3-hexafluoropropane (HFC-236fa), 1,1,1,3,3-pentafluoropropane (HFC-245fa), 1,1,1,3,3-pentafluorobutane (HFC-365mfc), water, CO2 and combinations of two or more of these.
A method of replacing an existing refrigerant contained in a refrigerant system comprising replacing at least a portion of said existing refrigerant from said system and replacing at least a portion of said existing refrigerant by introducing into said system a refrigerant composition comprising at least one iodocarbon compound and at least one fluoroalkene of Formula I:
- XCFzR3-z (I)
- where X is a C2 or a C3 unsaturated, substituted or unsubstituted, alkyl radical, R is independently Cl, F, Br, I or H, and z is 1 to 3.
A foamable composition comprising a foamable polymer or prepolymer and a blowing agent comprising at least one fluoroalkene of Formula I:
- XCFzR3-z (I)
- where X is a C2 or a C3 unsaturated, substituted or unsubstituted, alkyl radical, R is independently Cl, F, Br, I or H, and z is 1 to 3, said blowing agent further comprising at least one iodocarbon compound.
A foam premix composition comprising polymer or a prepolymer and a blowing agent comprising an iodocarbon compound and at least one fluoroalkene of Formula I:
- XCFzR3-z (I)
- where X is a C2 or a C3 unsaturated, substituted or unsubstituted, alkyl radical each R is independently Cl, F, Br, I or H and z is 1 to 3, said foam.
A heat transfer composition comprising:
- (a) at least one iodocarbon;
- (b) a hydrofluorocarbon;
- and
- (c) at least one diene-based stabilizer.
Dependencies are inferred from the claim text.