San Antonio, Texas - Honeywell has fully commercialised HFO-1234ze, its new low-global-warming-potential blowing agent for one-component foam and aerosol applications, in Europe, the company announced 1 Oct at the Polyurethanes 2008 Technical Conference, sponsored by US Center for the Polyurethanes Industry (CPI).
According to Honeywell, "HFO-1234ze has zero ozone-depletion and has a GWP of only six, which is well below the threshold of 150 set by the EU F-Gas regulation. The material is not classified as dangerous under EU Directive 67-548-EEC." The company said HFO-1234ze serves as a direct replacement for the hydrofluorocarbon blowing agent HFC-134a in one-component foam and aerosol applications.
"We are pleased to provide an environmentally superior and energy-efficient solution for foam and aerosol manufacturers," said Rene Mueller, managing director of Fluorine products for Europe, Middle East, Africa and India.
Ian Shankland, technology leader for Honeywell's low-GWP initiative, said, "Any replacement material must maintain or improve energy efficiency and be a less potent greenhouse gas. Our next-generation blowing agent meets these criteria while offering similar performance properties as its predecessor."
Honeywell gave details of the development of this new blowing agent at the Smithers Rapra conference on blowing agents in Berlin in May, as described in Urethanes Technology International, June/July, p 22.
At the CPI meeting in Texas, DuPont also spoke about its FEA-1100 low GWP blowing agent for rigid foam, and Arkema researchers describer their work to develop low GWP replacements for HFCs, which has produced two promising materials - AFA G1 as an HFC 134a alternative and AFA £1 as a replacement for HCF245a and hydrocarbons. Arkema is working on developing commercial materials from these.
Workers from Dow Chemical Co. offered an overview of zero ozone-depletion-potential (ODP) polyurethane chemistries and processing technologies for the commercial appliance market, including a review of GWPs, thermal conductivity, vapour pressure and flammability for current blowing agents; and the unique handling, processing and physical property characteristics to be considered in various appliance applications.