Is polyester PET?

Polyester, a general term for polymers obtained by polycondensation of polyols and polyacids. Mainly refers to polyethylene terephthalate (PET), and customarily also includes linear thermoplastic resins such as polybutylene terephthalate (PBT) and polyarylate. It is a kind of engineering plastic with excellent performance and wide application. . It can also be made into polyester fiber and polyester film. Polyester includes polyester resin and polyester elastomer. Polyester resins include polyethylene terephthalate (PET), polybutylene terephthalate (PBT) and polyarylate (PAR). Polyester elastomer (TPEE) is generally polymerized by dimethyl terephthalate, 1,4-butanediol and polybutanol. The chain segment includes hard segment and soft segment, and is a thermoplastic elastomer.