申请人:——
公开号:US20040039137A1
公开(公告)日:2004-02-26
This invention relates to a method for producing and processing polyester block copolymers, in particular, polyester side-chain grafted, rigid side-chain and/or semi-rigid side-chain polymers. According to the invention, the monomeric units of rigid side-chain and/or semi-rigid side-chain polymers are, preferably in the melt, polycondensated together with monofunctionalized and/or difunctionalized, cyclic dicarboxylic acid anhydrides to form polymers having anhydride terminal and/or side groups. The formed polyester anhydrides are reacted with the hydroxyl groups and/or with the ester groups of meltable linear polyesters in order to form side-chain grafted, rigid side-chain and/or semi-rigid side-chained polymers and, together with meltable polyesters, they form molecularly reinforced blends. These blends can be shaped into filaments or fibers having a high orientation of the reinforcing polymer or they serve as compatibility mediators in blends consisting of a polyester matrix and of rigid side-chain and/or semi-rigid side-chain polymers. The filaments are used, in particular, in technical fields or in the carpet industry.
本发明涉及一种生产和加工聚酯嵌段共聚物,特别是聚酯侧链接枝、刚性侧链和/或半刚性侧链聚合物的方法。根据本发明,刚性侧链和/或半刚性侧链聚合物的单体单元最好在熔融状态下与单官能化和/或双官能化的环状二羧酸酸酐一起缩聚,形成具有酸酐末端和/或侧基团的聚合物。形成的聚酯酸酐与可熔化线性聚酯的羟基和/或酯基反应,形成侧链接枝、刚性侧链和/或半刚性侧链聚合物,并与可熔化聚酯一起形成分子增强混合物。这些混合物可被制成具有高取向增强聚合物的细丝或纤维,或者在由聚酯基体和刚性侧链和/或半刚性侧链聚合物组成的混合物中用作相容性介质。这种长丝主要用于技术领域或地毯工业。