| 摘要 |
PROBLEM TO BE SOLVED: To relieve polyesters having physical parameter(s) off predetermined specification ranges among three parameters, i.e. intrinsic viscosity, dialkylene glycol content and oligomer content, that is, to relieve polyesters of off-spec physical properties. SOLUTION: A polyester blending method is provided, comprising blending two or more polyesters together so that one of the three physical parameters, i.e. intrinsic viscosity, dialkylene glycol content and oligomer content, fall within a predetermined specification range. COPYRIGHT: (C)2009,JPO&INPIT
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