A clean route topolycarbonates

Baker, John
October 2007
ICIS Chemical Business;10/15/2007, Vol. 272 Issue 14, p10
Trade Publication
The article discusses the popularity and accolades earned by Asahi Kasei Chemicals Corp. for developing a phosgene-free route to polycarbonates. It also gives a detailed account of the development history and informs that the process began in 1977 using three raw materials--ethylene oxide, carbon dioxide and bisphenol A. A phosgene-free route to PCs has been a long time coming, with a number of producers seeking to overcome the inherent problems related to the process.


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