申请人:E. I. Du Pont de Nemours and Company
公开号:US04001189A1
公开(公告)日:1977-01-04
Textile fibers or filaments prepared from polyesters modified with a minor proportion of 2,2,6,6-tetramethylpiperidine groups attached through oxyalkylene linkages to ends of linear polyester polymer chains have improved dyeability with acid dyes. A variety of alkylene oxide condensates of tetramethylpiperidine compounds are shown to have adequate heat-stability and compatibility for incorporating in polyesters under conditions of condensation polymerization to form desirable products.
由聚酯修饰的纺织纤维或丝绸纤维,通过氧烷基链接到线性聚酯聚合物链的末端,具有改善酸性染料染色性能的2,2,6,6-四甲基哌嗪基少量改性。各种四甲基哌嗪化合物的氧烷基氧化物凝聚物都表现出足够的热稳定性和相容性,可以在缩聚聚合条件下与聚酯一起制成理想的产品。