Patent ID: 8420706

Claim:
A foam comprising a plurality of closed polymeric cells and a composition contained in at least one of said cells, said composition having a global warming potential (GWP) not greater than about 500 and comprising (i) from about 1% to about 99% by weight of at least one fluoroalkene of Formula I: XCF 3 (I) where X is a C2 unsaturated, substituted radical having at least one halogen substituent, provided that the fluoroalkene has a terminal unsaturated carbon with at least one H on the unsaturated terminal carbon, and (ii) at least one co-blowing agent which is not a compound in accordance with Formula I and which comprises a compound selected from the group consisting of C4-C6 hydrocarbons, C1-C5 alcohols, C1-C4 ethers, water, CO 2 and combinations of two or more of these, said foam having a K-factor (BTU in/hr ft 2 ° F.) at 40° F. of not greater than about 0.14.