Advances in Urethane: Science & Technology, Volume XIV

Mathematical Property Prediction Models for Flexible Polyurethane Foams. Reinhart Schiffauer, ARCO Chemical Company, South Charleston, South Carolina 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 The Effective Diffusivity of Cyclopentane and n-Pentane in PU and PUIR Foams by Thin-Slice Gravimetric Analysis. J. Richard Booth and Deb Bhattarcharjee, Dept. of Chemical Engineering, Tennessee Technological University o Purpose o Background o Research Approach o Discussion of Results o Conclusions o Nomenclature o References Scorch Inhibitors for Polyurethane Slabstock Foams. James H. Botkin, Ciba Specialty Chemicals Corp, Additives Division, Tarrytown, NY 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 A Novel Architecture for Electro-Optic Polyurethane: Alternating Charge Transporting and Nonlinear Optical Chromophores. Kevin D. Belfield and Suresh R. Sriram, Dept. of Chemistry, University of Detroit Mercy o Introduction o Experimental o Results and Discussion o Conclusions o Acknowledgements o References Advances in Moisture-Curable Siloxane-Urethane Polymers. Janusg Kozakiewicz, Industrial Chemistry Research Institute, Warsaw, Poland o Introductory Remarks o Experimental o Results and Discussion o Further Development of Siloxane-Urethane Polymers o References New Synthetic Pathways to Polyether Polyols for Rigid Polyurethane Foams. Mikail Ionescu, Vicoria Zugrasvu, Joana Mihalache, and Mihai Stanca, Institute of Chemical Research, Bucharest, Romania o Introduction o Synthesis of Polyether Polyols for Pur by Alkoxylation of Polyols Catalysed by Tertiary Amines o Melamine Based Polyether Polyols o New Polyether Polyols by Polyoxyalkylation of Rigid Polyurethane Foam Wastes o New Polyols for Rigid Polyurethane Foams Synthesized in Acidic Catalysis o New Polyether Polyol Structures o Structures o Conclusions o Acknowledgments o References PU Based Structural RIM Composites for a Complete Car Floor Plan. Gianflavio Lunardon, EniChem S.p.A., Polyuretha- ne and Chlorine Division Research Center, Venice, Italy o Introduction o The Eureka Mosaic Project o Structure of Car Prototypes o Experimental Part o Weight Balances o Economic Balances and Optimization Research o Concluding Remarks o References Effect of Crosslink Variation on Physical Properties of Polyurethanes. Wally Chang, Witco Corp, Performance Chemicals Group/Urethane Chemicals Polymer R&D Labs, Venice, Italy o Introduction o Experimental o Functionality o Results and Discussion o Conclusion o References Structure-Property Relationships of Polyurethane Elastomers Based on New Saturated Hydrocarbon Diols. Aisa Sendijaravic, Vahid Sendijarevic, K.C. Frisch, Polymer Institute, University of Detroit Mercy, Dale Handlin, Steven Chin and Michael Masse, Shell Chemical Company, Houston, Texas o Introduction o Experimental o Results and Discussion o Conclusions o Acknowledgements o References Polyurethane Elastomers Based on Novel Hydrocarbon-Based Diols. Aisa Sendijarevic, Vahid Sendijarevic, K.C. Frisch, Polymer Institute, University of Detroit Mercy, H.B. Yokelson and P.O. Nubel, Amoco Corp o Introduction o Experimental o Results and Discussion o Conclusions o Acknowledgements o References Polyurethane Structural Adhesives for Automotive Applications. Earl G. Melby, Morgantown, WV o Introduction o Early Urethane Adhesives Used for SMC Bonding o Adhesive Base Formulation o Adhesive Curative Formulations o Primerless Urethane Adhesives o One Component Adhesive System o Future Needs for Adhesives