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By S.N. Singh

This overview discusses the criminal standards and estate necessities for blowing brokers in several functions. It highlights the results of fixing blowing brokers together with the necessity for reformulation. Many new polyols, isocyanates and surfactants are being built to beat difficulties. every one form of blowing agent is defined. Key environmental and actual houses are indexed, including merits and barriers. Foams are defined via kinds and by means of functions. an extra listed part containing a number of hundred abstracts from the Rapra Polymer Library database provides precious references for extra interpreting.

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Zipfel, Polyurethanes Expo 2001, Conference Proceedings, Columbus, USA, 2001, 325. 9 H. Kiso, K. Tokumoto, Y. Tamano, H. Yoshimura, R. Maris and K. Gay, Polyurethanes Expo 2001, Conference Proceedings, Columbus, USA, 2001, 491. 10 K. Wilkes, D. Yarbrough, W. Gabbard, G. Nelson and J. Booth, Polyurethanes Expo 2001, Conference Proceedings, Columbus, USA, 2001, 313. 11 G. Burkhart, M. Klincke and K. Willoughby, Polyurethanes Expo 2001, Conference Proceedings, Columbus, USA, 2001, 501. 12 J. King, I.

5 refs. 824822 Item 8 UTECH 2000. Proceedings of a conference held The Hague, Netherlands, 28th-30th March 2000. ; European Isocyanate Producers’ Association) The results are reported of a comparison of three different silicone stabilisers used in the manufacture of a PU foam made with 3000MW polyol and 3500MW polyol on three different machines, namely the Beamech CO-2 machine, Hennecke-Krauss-Maffei Novaflex machine and Cannon CarDio equipment. Stabilisers evaluated were Niax Silicones SC-155, L-580 and L-631.

DeLeon, D. Shieh and E. Feske, Polyurethanes Expo 2001, Conference Proceedings, Columbus, USA, 2001, 125. M. Kageoka, H. Ootsuka, Y. Sato and T. Kumaki, Polyurethanes Expo 2001, Conference Proceedings, Columbus, USA, 2001, 403. 22 O. Eyrisch, G. Burkhart and R. Borgogelli, Polyurethanes Expo 2001, Conference Proceedings, Columbus, USA, 2001, 417. 23 M. Koshute, M. Blaszkiewicz, and B. Neal, Polyurethanes Expo 2001, Conference Proceedings, Columbus, USA, 2001, 247. 24 B. Zhong, J. M. Bowman and D.

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