Saturated Polyester Resin is condensed by polyhydric acid and alcohol and specially used for the production of Powder Coatings. According to the structure of end group, polyester resin can be divided into end-carboxyl and end-carboxyl polyester resin. According to different application, end-carboxyl polyester resin can be divided into hybrid polyester for the use of epoxy-polyester powder coatings and pure polyester for the use of polyester based powder coatings.
　 Since 1986, Hangzhou Sino-French Chemical Co., Ltd introduced polyester resin equipment and technology from France. Through 20 years hard working of company employees, until July of 2007, the company already has 4 polyester resins production lines with 32000MT of annual production capacity. The company produces more than ten types of polyester resins to meet customers’ requirements of producing various use of powder coatings.