GLYCOLIC ACID POLYMERS AND METHOD OF PRODUCING THE SAME
    10.
    发明申请
    GLYCOLIC ACID POLYMERS AND METHOD OF PRODUCING THE SAME 审中-公开
    甘油酸聚合物及其生产方法

    公开(公告)号:US20160060387A1

    公开(公告)日:2016-03-03

    申请号:US14934840

    申请日:2015-11-06

    摘要: Described herein is a feasible, significantly simplified production method that avoids challenging lactonization steps and converts a low molecular weight aliphatic polyester, consisting of hydroxy acids and a comonomer, whose molecular weight has been increased by step-growth polymerization reactions. The molecular weight of the aliphatic polyester, based on comparison of initial and final weight average molecular weights (Mw,1/Mw,2), increased significantly at a rate which permits the use of reactive extrusion to produce high molecular weight aliphatic polyesters in a simple, economically feasible manner.

    摘要翻译: 本文描述的是可行的,显着简化的生产方法,其避免了挑战性的内酯化步骤,并且转化由分子量已经通过分步生长聚合反应增加的羟基酸和共聚单体组成的低分子量脂族聚酯。 基于初始和最终重均分子量(Mw,1 / Mw,2)的比较,脂肪族聚酯的分子量以允许使用反应性挤出在高分子量脂族聚酯中生产的速率显着增加 简单,经济可行的方式。