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    • 100. 发明申请
    • PROCESSES FOR MAKING COPOLYMERS USING MACROCYCLIC OLIGOESTERS, AND COPOLYMERS THEREFROM
    • 使用大环低聚酯制备共聚物的方法及其共聚物
    • WO2007089779A2
    • 2007-08-09
    • PCT/US2007/002534
    • 2007-01-21
    • CYCLICS CORPORATIONBAHR, Steven, R.PAWLSON, James
    • BAHR, Steven, R.PAWLSON, James
    • C08G63/00C08G63/85
    • C08G63/672C08G63/00C08G63/16C08G63/60
    • The invention provides alternatives to traditional polycondensation processes for preparing copolymers. For example, in certain embodiments, the invention provides a process that includes an extrusion step and a solid state polymerization step to prepare high molecular weight block copolymer with a "hard block" contributed by a macrocyclic polyester oligomer (MPO) and a "soft block" contributed by a dihydroxyl-functionalized polymer, an oligoether, and/or a dimerized fatty acid (i.e. apolyol). The invention also provides new copolymer compositions made possible by the new processes - for example, copolymers of higher molecular weight, copolymers with higher weight ratio of soft block units to hard block units, copolymers made with higher molecular weight polyol, and copolymers with hard block units that are themselves random copolyesters of units contributed by a MPO and a cyclic ester.
    • 本发明提供了制备共聚物的传统缩聚方法的替代方案。 例如,在某些实施方案中,本发明提供了包括挤出步骤和固态聚合步骤的方法,以制备具有“硬嵌段”的高分子量嵌段共聚物。 由大环聚酯低聚物(MPO)和“软嵌段” 由二羟基官能化聚合物,低聚醚和/或二聚脂肪酸(即多元醇)贡献。 本发明还提供了通过新方法制备的新共聚物组合物 - 例如,较高分子量的共聚物,具有较高重量比的软嵌段单元与硬嵌段单元的共聚物,由较高分子量多元醇制成的共聚物以及与硬嵌段 单元本身是由MPO和环酯贡献的单元的无规共聚酯。