The book is a monograph devoted to chemistry, physics and technology for the production of new, very promising polymers - polycarbonates. It describes various methods for the preparation of starting materials for the synthesis of polycarbonates, their physicochemical properties are given. Structure, methods of polycarbonates synthesis and processing, as well as fields of their application in various industries are considered. A separate chapter is devoted to casting, extrusion, blowing, gluing, welding polycarbonates and obtaining films and fibers from them. An exhaustive list of references and patents is provided. The book is designed for research chemists and engineering workers interested in the production, processing and use of polymer materials.