"The new product of PETG copolyester LH300 produced by us has been tested by a third-party organization, and all three tests, including cytotoxicity test, skin irritation test and skin sensitization test, are qualified, successfully knocking on the door of high-end medical application." On February 2, Lin Yanyan, director of the polyester research office of Liaoyang Petrochemical Research Institute, said.

Liaoyang Petrochemical Company insists on laying out innovation chain around the industrial chain, keeping a close eye on the market changes of high-end new products, firmly grasping the opportunity period of transformation and upgrading, speeding up the research and development of new technologies and industrialization, carefully cultivating differentiated, high-end and characteristic products, opening up new areas and new businesses, and promoting quality improvement and efficiency improvement through scientific and technological innovation.

PETG copolyester LH300 is a new product developed by Liaoyang Petrochemical for the needs of medical packaging materials. By collecting samples of raw materials, testing their physical properties, and conducting a series of investigations on domestic certification processes, researchers developed the formula and synthesis process of key core compound additives, and produced the first batch of products in industrial devices. After the third-party medical test, the compatibility between the product and the host, including histocompatibility and blood compatibility, was all qualified and passed the test at one time. At present, the new products have been favored by downstream enterprises for their excellent product performance, and two packaging material manufacturers are interested in carrying out post-processing tests of medical device raw materials.