Polymer Processing: Principles and Design presents the background required to design processes for thermoplastics. Often engineers are hired by the polymer industry to develop and design processes for thermoplastics, to design polymer processing machinery, to develop processes for new polymers, and to optimize existing processes. However, at best, they receive only a little training in polymer science and no training in the design of polymer processes. This book emphasizes the fundamental concepts that allow the student and the practicing engineer to carry out practical design decisions. While most books leave the student with equations only, Polymer Processing: Principles and Design provides the numerical methods required to solve the equations using the personal computer and easy-to-use IMSL numerical subroutines, and ensures a solid foundation in the principles underlying the design of polymer processing techniques.