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常规生产树脂级PET的工艺包括CP-缩聚,生产特性黏度(i.v.)为0.55至0.62、AA含量为(4~10)×10-5的初级粒子。为了生产i.v.为0.76至
Conventional production of resin-grade PET includes CP-polycondensation to produce primary particles having an intrinsic viscosity (i.v.) of 0.55 to 0.62 and an AA content of (4 to 10) 10-5. To produce i.v. is 0.76 to