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Branched-chain polyesters and copolyesters, process for spinning textile and industrial yarns, and use of branched-chain polyesters and copolyesters

机译:支链聚酯和共聚酯,纺织和工业纱线的纺丝工艺以及支链聚酯和共聚酯的用途

摘要

"USE OF BRANCHED CHAIN POLYESTERS AND COPOLYTERS, AND, PROCESS FOR THE WIRING OF TEXTILE AND INDUSTRIAL YARNS". Threaded branched chain polyesters and copolyesters with a relative molecular weight of 10,000 are provided by condensing 50-500 ppm of one or more chain branching agents added during the preparation of the polyester, of general formula (I): where n = 2-4, that is, di-, tri- or tetrapentaerythritol, in the initial polyester-forming components. They are exceptionally suitable for the fast spinning of textile and industrial yarns with rewinding speeds of 2500-10.000 m / min, in addition to the usual stretching or texturing processes.
机译:“使用支链聚酯和共聚聚酯,以及纺织和工业纱线的接线过程”。通过缩合50-500ppm在制备聚酯的过程中添加的通式(I)的一种或多种链支化剂,提供相对分子量> 10,000的螺纹支链聚酯和共聚酯:其中n = 2-4在最初的形成聚酯的组分中,即二,三或四季戊四醇。除了通常的拉伸或变形工艺外,它们还非常适合以2500至10.000 m / min的复卷速度进行纺织和工业纱线的快速纺丝。

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