Polymer Engineering is that it implements the theory and knowledge of chemical engineering in various problems associated with the production and use of polymers to solve. Polymer engineers use the principles of investment planning, process design, thermodynamics and transport processes to develop new products. Polymer engineers supervise the production process of plastics and other polymers. Under her supervision lead plastic molders and technicians from the workshop production processes. Recently, the polymer has the fastest growing sector of the construction industry. As polymer production has grown, so has the number of people who work in this area. It was estimated that about 50 percent of chemical engineers and chemists in the United States working in the plastics industry.