Advances in Urethane

<p>Flexible polyurenthane foams of all types are a unique group of plastics materials, characterized by the fact that different sets of properties can be obtained by varying the levels of a small number of base components in the formulations. This book discusses the methodology for obtaining meaningful equations for correlating properties.</p> <p>Mathematical Property Prediction Models for Flexible Polyurethane Foams. <br>Reinhart Schiffauer, ARCO Chemical Company, South Charleston, South Carolina<br>o Methods for Obtaining Mathematical Property Prediction Models o Mathematical Analysis o Transformed Variables o Individual Models for Each Property o Density o Hardness o Mechanical Properties o Resilience o Fatique o Maximum Block Temperature, Conventional Slabstock Foam o Individual Influencing Variables o Correlation of Ancillary Chemicals with the Base Formulation o Recommendations for Future Studies o References <br><br>The Effective Diffusivity of Cyclopentane and n-Pentane in PU and PUIR Foams by Thin-Slice Gravimetric Analysis. <br>J. Richard Booth and Deb Bhattarcharjee, Dept. of Chemical Engineering, Tennessee Technological University<br>o Purpose o Background o Research Approach o Discussion of Results o Conclusions o Nomenclature o References <br><br>Scorch Inhibitors for Polyurethane Slabstock Foams. <br>James H. Botkin, Ciba Specialty Chemicals Corp, Additives Division, Tarrytown, NY<br>o Introduction o Chemistry of Scorching in Polyurethane Foams o Test Methods for Polyol Stabilization and Scorch Inhibition o Antioxidant Systems for Polyol Stabilization and Scorch Inhibition o Industry Trends and Antiscorch Systems o Conclusions and Outlook o Acknowledgements o Appendix: List of Antioxidants o References <br><br>A Novel Architecture for Electro-Optic Polyurethane: Alternating Charge Transporting and Nonlinear Optical Chromophores. <br>Kevin D. Belfield and Suresh R. Sriram, Dept. of Chemistry, University of Detroit Mercy<br>o Introduction o Experimental o Results and Discussion o Conclusions o Acknowledgements o References <br><br>Advances in Moisture-Curable Siloxane-Urethane Polymers. <br>Janusg Kozakiewicz, Industrial Chemistry Research Institute, Warsaw, Poland<br>o Introductory Remarks o Experimental o Results and Discussion o Further Development of Siloxane-Urethane Polymers o References</p>