<p>The invention provides: a blowing composition for producing foamed articles of polyurethane comprising at least one of chloropentafluoropropane and isomer thereof, a blowing composition for producing foamed articles of polyurethane comprising (a) at least one of chloropentafluoropropane and isomers thereof and (b) 1,1-dichloro-1-fluoroethane and a blowing composition for producing foamed articles of polyurethane comprising (a) at least one of chloropentafluoropropane and isomers thereof and (c) at least one of dichlorotrifluoroethane and isomers rhereof.</p>
