Dennis B. Malpass received his PhD in organometallicchemistry from The University of Tennessee in 1970 and began hiscareer with Texas Alkyls, Inc. (now AkzoNobel). His industrialcareer spanned thirty-three years working on synthesis,characterization, and applications of metal alkyls, especiallyaluminum alkyls in Ziegler-Natta polymerization of olefins. He hasmore than eighty patents and publications and now consults in thepolyolefins industry. He also teaches organic chemistry and is aninstructor for continuing education courses for SPE and ACS. In2010 he authored Introduction to IndustrialPolyethylene. Elliot I. Band received his PhD in inorganic chemistryfrom Cornell University in 1980. He has been in research anddevelopment with AkzoNobel and its predecessor companies for overthirty years. His tenure includes twenty years in Ziegler-Nattacatalyst synthesis, manufacture, quality control, and technicalsupport to polypropylene manufacturers in North and South America.He presently manages a group of chemists and engineers thatdevelops new cationic, anionic, and nonionic surfactants forAkzoNobel. Elliot has thirty publications and more than twentypatents.