| abstract |
A foaming composition comprising one or more C2 to C6 fluoroalkenes, more preferably C3 to C5 fluoroalkenes, and still more preferably one or more compounds of formula (I), foam compositions, foams, foaming methods XCF z R 3 -z (I) wherein X is selected from the group consisting of C 1 , C 2 , C 3 , C 4 Or a C 5 unsaturated, substituted or unsubstituted radical, each R is independently Cl, F, Br, I or H and z is 1 to 3.). It is preferred that the fluoroalkene of the present invention has at least four (4) halogen substituents, at least three F's, and even more preferably no Br. |