摘要:
A blowing agent for thermosetting foams is disclosed. The blowing agent is a hydrofluoroolefin (HCFO), preferably HFCO-1234ze in combination with a hydrochlorofluoroolefin (HCFO) preferably one selected from HCFO-1233zd, HCFO-1223, HCFO-1233xf and mixtures thereof. The blowing agent is effective as a blowing agent in the manufacture of thermosetting foams.
摘要:
A blowing agent for thermosetting foams is disclosed. The blowing agent is a hydrofluoroolefin (HCFO), preferably HFCO-1234ze in combination with a hydrochlorofluoroolefin (HCFO) preferably one selected from HCFO-1233zd, HCFO-1223, HCFO-1233xf and mixtures thereof. The blowing agent is effective as a blowing agent in the manufacture of thermosetting foams.
摘要:
Disclosed herein are blowing agents comprising fluorocarbons and/or hydrofluorocarbons useful in foamable compositions. Also disclosed are reduced global warming potential (GWP) methods for forming a foam comprising the aforementioned blowing agents.
摘要:
A thermal insulating foam comprising a plurality of polymeric cells and a composition contained in at least one of said cells, said composition comprising at least one blowing agent comprising 1-chloro-3,3,3-trifluoropropene.
摘要:
Various uses of tetrafluoropropenes, particularly (HFO-1234) in a variety of applications, including refrigeration equipment, are disclosed. These materials are generally useful as refrigerants for heating and cooling, as blowing agents, as aerosol propellants, as solvent composition, and as fire extinguishing and suppressing agents.
摘要:
A process for producing a synthetic resin foam which comprises reacting at least one polyol with at least one polyisocyanate compound in the presence of an organic blowing agent, wherein the organic blowing agent is a blowing agent for synthetic resin foams which is characterized by being a mixture comprising 1,1,1,3,3-pentafluorobutane (HFC-365mfc) and at least one halogenated compound and optionally containing at least one member selected from the group consisting of glycol compounds and amide compounds. Also provided are: a premix comprising the blowing agent and a polyol mixture; and a process for producing a synthetic resin foam from these.
摘要:
The invention relates to a composition comprising trans 1,2-dichloroethylene, more particularly, a non-flammable composition (no flashpoint), comprising trans 1,2-dichloroethylene and pentafluoropropane and use thereof.
摘要:
A mixture comprising at least 1,1,1,3,3-pentafluoropropane and 1,1,1-trifluoro-3-chloro-2-propene is subjected to a distillation step to obtain a distillate comprising an azeotropic composition consisting substantially of 1,1,1,3,3-pentafluoropropane and 1,1,1-trifluoro-3-chloro-2-propene. From the distillate is obtained a bottom comprising 1,1,1,3,3-pentafluoropropane or 1,1,1-trifluoro-3-chloro-2-propene which each has been separated from the other and purified.