Blowing agent composition of hydrofluoropropene and hydrochlorofluoroolefin

Abstract

A blowing agent for thermosetting foams is disclosed. The blowing agent is the hydrofluoropropene HFO-1243zf in combination with a hydrochlorofluoroolefin (HCFO) selected from HCFO-1233zd, HCFO-1233xf and HCFO-1223. The blowing agent is effective as a blowing agent in the manufacture of thermosetting foams.

1 . A polyurethane foam comprising polymer foam components and a foam blowing agent comprising the hydrofluoropropene HFO-1243zf in combination with a hydrochlorofluoroolefin (HCFO) selected from the group consisting of HCFO-1233zd, HCFO-1233xf, HCFO-1223 and mixtures thereof. 
     
     
         2 . The polyurethane foam of  claim 1 , wherein said hydrofluoropropene HFO-1243zf comprises about 5 wt % or more of the hydrofluoropropene and hydrochlorofluoroolefin composition. 
     
     
         3 . The polyurethane foam of  claim 1 , wherein said foam blowing agent further comprising further comprising a hydrofluorocarbon. 
     
     
         4 . The polyurethane foam of  claim 3 , wherein said hydrofluorocarbon is selected from the group consisting of difluoromethane (HFC32); 1,1,1,2,2-pentafluoroethane (HFC125); 1,1,1-trifluoroethane (HFC143a); 1,1,2,2-tetrafluoroethane (HFC134); 1,1,1,2-tetrafluoroethane (HFC134a); 1,1-difluoroethane (HFC152a); 1,1,1,2,3,3,3-heptafluoropropane (HFC227ea); 1,1,1,3,3-pentafluoropropane (HFC245fa); 1,1,1,3,3-pentafluorobutane (HFC365mfc) and 1,1,1,2,2,3,4,5,5,5-decafluoropentane (HFC4310mee). 
     
     
         5 . The polyurethane foam of  claim 1 , wherein said foam blowing agent further comprising a hydrofluoroolefin. 
     
     
         6 . The polyurethane foam of  claim 5  wherein said hydrofluoroolefin is selected form the group consisting of 1,1,1,2-tetrafluoropropenes (HFO1234), tetrafluorobutene isomers (HFO1354), pentafluorobutene isomers (HFO1345), hexafluorobutene isomers (HFO1336), heptafluorobutene isomers (HFO1327), heptafluoropentene isomers (HFO1447), octafluoropentene isomers (HFO 1438) and nonafluoropentene (HFO 1429). 
     
     
         7 . The polyurethane foam of  claim 1 , wherein said blowing agent further comprises a component selected from the group consisting of a second hydrofluoroolefin (HFO), hydrofluorocarbon, a hydrocarbon, an alcohol, an aldehyde, an ester, a ketone ether/diether or carbon dioxide. 
     
     
         8 . A process of foaming a polyurethane foam comprising mixing polymer foam components with a foam blowing agent comprising the hydrofluoropropene HFO-1243zf in combination with a hydrochlorofluoroolefin (HCFO) selected from the group consisting of HCFO-1233zd, HCFO-1233xf, HCFO-1223 and mixtures thereof. 
     
     
         9 . The process of  claim 8 , wherein said hydrofluoropropene HFO-1243zf comprises about 5 wt % or more of the hydrofluoropropene and hydrochlorofluoroolefin composition. 
     
     
         10 . The process of  claim 8 , wherein said foam blowing agent further comprising further comprising a hydrofluorocarbon. 
     
     
         11 . The process of  claim 10 , wherein said hydrofluorocarbon is selected from the group consisting of difluoromethane (HFC32); 1,1,1,2,2-pentafluoroethane (HFC125); 1,1,1-trifluoroethane (HFC143a); 1,1,2,2-tetrafluoroethane (HFC134); 1,1,1,2-tetrafluoroethane (HFC134a); 1,1-difluoroethane (HFC152a); 1,1,1,2,3,3,3-heptafluoropropane (HFC227ea); 1,1,1,3,3-pentafluoropropane (HFC245fa); 1,1,1,3,3-pentafluorobutane (HFC365mfc) and 1,1,1,2,2,3,4,5,5,5-decafluoropentane (HFC4310mee). 
     
     
         12 . The process of  claim 8 , wherein said foam blowing agent further comprising a hydrofluoroolefin. 
     
     
         13 . The process of  claim 12 , wherein said hydrofluoroolefin is selected form the group consisting of 1,1,1,2-tetrafluoropropenes (HFO1234), tetrafluorobutene isomers (HFO1354), pentafluorobutene isomers (HFO1345), hexafluorobutene isomers (HFO1336), heptafluorobutene isomers (HFO1327), heptafluoropentene isomers (HFO1447), octafluoropentene isomers (HFO 1438) and nonafluoropentene (HFO 1429). 
     
     
         14 . The process of  claim 8 , wherein said blowing agent further comprises a component selected from the group consisting of a second hydrofluoroolefin (HFO), a hydrofluorocarbon, a hydrocarbon, an alcohol, an aldehyde, an ester, a ketone ether/diether or carbon dioxide.