Mixtures containing 1,1,1,4,4,4-hexafluorobutene and 1-chloro-3,3,3-trifluoropropene

1. A thermal insulating thermoset foam, said foam comprising phenolic or resole resin forming closed cells and a blowing agent composition contained in said closed cells, said blowing agent composition comprising:

from about 30 mole % to about 70 mole % 1,1,1,4,4,4-hexafluorobutene (1336mzzm);

from about 30 mole % to about 70 mole % 1-chloro-3,3,3-trifluoropropene (1233zd); and

optionally at least one adjuvant selected from the group consisting of co-blowing agent(s), polyol(s), surfactant(s), polymer modifier(s), colorant(s), dye(s), solubility enhancer(s), flammability suppressant(s), flame retardants(s), antibacterial agent(s), viscosity reduction modifier(s), filler(s), vapor pressure modifier(s), nucleating agent(s), catalyst(s) and combination of any two or more of these.

2. The thermal insulating thermoset foam of claim 1 wherein said 1-chloro-3,3,3-trifluoropropene (1233zd) comprises from about 50 weight percent to about 100 weight percent trans-1-chloro-3,3,3-trifluoropropene and from about 0 weight percent to about 50 weight percent cis-1-chloro-3,3,3-trifluoropropene.

3. The thermal insulating thermoset foam of claim 1 wherein said 1-chloro-3,3,3-trifluoropropene (1233zd) comprises from about 90 weight percent to about 100 weight percent trans-1-chloro-3,3,3-trifluoropropene and from about 0 weight percent to about 10 weight percent cis-1-chloro-3,3,3-trifluoropropene.

4. The thermal insulating thermoset foam of claim 1 wherein said 1,1,1,4,4,4-hexafluorobutene (1336mzzm) comprises from about 90 weight percent to about 100 weight percent cis 1,1,1,4,4,4-hexafluorobutene and from about 0 weight percent to about 10 weight percent trans-1,1,1,4,4,4-hexafluorobutene.

5. The thermal insulating thermoset foam of claim 1 wherein said 1,1,1,4,4,4-hexafluorobutene is provided in an amount from about 40 to about 60 mole percent and said 1-chloro-3,3,3-trifluoropropene is provided in an amount from about 40 to about 60 mole percent.

6. The thermal insulating thermoset foam of claim 1 wherein said at least one adjuvant comprises at least one co-blowing agent comprising one or more HFCs selected from the group consisting of difluoromethane (HFC-32), fluoroethane (HFC-161)difluoroethane (HFC-152), trifluoroethane (HFC-143), tetrafluoroethane (HFC-134), pentafluoroethane (HFC-125), pentafluoropropane (HFC-245), hexafluoropropane (HFC-236), heptafluoropropane (HFC-227), pentafluorobutane (HFC-365), hexafluorobutane (HFC-356), all isomers of all of these, and combinations of two or more of these.

7. The thermal insulating thermoset foam of claim 1 wherein said at least one adjuvant comprises at least one co-blowing agent comprising one or more hydrocarbons selected from the group consisting of isopentane, normal pentane, cyclopentane, butane and isobutane, and combinations of two or more of these.

8. The thermal insulating thermoset foam of claim 1 wherein said adjuvant comprises at least one co-blowing agent selected from the group consisting of water, CO 2 , CFCs, HCCs, HCFCs, C1-C5 alcohols, C1-C4 aldehydes, C1-C4 ketones, C1-C4 ethers and diethers, organic acids, and combinations of two or more of these.

9. The thermal insulating thermoset foam of claim 1 wherein said adjuvant comprises water as at least one co-blowing agent.

10. The thermal insulating thermoset foam of claim 1 wherein the foam exhibits an initial k-factor (BTU in/hr ft 2 ° F.) at 40° F. of not greater than about 0.14.

11. The thermal insulating thermoset foam of claim 1 wherein the foam exhibits an initial k-factor (BTU in/hr ft 2 ° F.) at 75° F. of not greater than about 0.16.

12. The thermal insulating thermoset foam of claim 1 wherein the foam exhibits an initial k-factor (BTU in/hr ft 2 ° F.) at 110° F. of not greater than about 0.18.

13. The foam of claim 3 wherein the foam exhibits an initial k-factor (BTU in/hr ft 2 ° F.) at 75° F. of not greater than about 0.16.

14. The foam of claim 3 wherein the foam exhibits an initial k-factor (BTU in/hr ft 2 ° F.) at 110° F. of not greater than about 0.18.

15. An appliance comprising the foam of claim 1 .

16. The appliance of claim 15 wherein said foam is a refrigerator foam.

17. The appliance of claim 15 wherein said foam is a freezer foam.

18. The appliance of claim 15 wherein said foam is a panel foam.