Polymer toughening agent is a special additive which added in plastics, rubber and other polymer materials. Its main function is to significantly improve the toughness, impact strength and anti-cracking properties of the base resin through physical or chemical action.

Multi-functional polyester homopolymer is a special powder material for plastics, rubber, asphalt and other polymers, which is custom developed by Rallychem and the Japan Institute for Materials Research. Compared with traditional modification processing aids, Multi-functional polyester homopolymer is able to significantly improve the performance of the final product and bring added value. It also increases the toughness of polymers and requires less additive volume to obtain the relevant functions, which is cost-effective.