Adipic acid is chiefly used as raw material of three kinds of products, that is to say, polymerization nylon 66 salt, polyurethane & plasticizer, advanced lubrication and food additive. 1. The high-grade ester in adipic acid can make polyvinyl chloride & its copolymer, which is widely used in food packing, film and insulation, and plasticizer in natural combined rubber. 2.The dioctyl ester of adipic acid can be used as high temperature lubrication. 3. The most important usage of adipic acid is to produce polyaminoformic ester elastic body. In addition, adipic acid can make sour agent for all kinds of food and beverage. Because adipic acid is not deliquescent, it is most suitable for making dry food that could store long time. The refined adipic acid gains high opinion by our customers due to the obvious advantage at its high purity and good quality.