-
公开(公告)号：EP4459016A1
公开(公告)日：2024-11-06
申请号：EP22913428.3
申请日：2022-08-24
发明人： XU, Jinlong , TIAN, Huishuang , WU, Xing , JI, Peng , MEI, Feng , WANG, Huaping
IPC分类号： D01F8/14 , C08G63/692
摘要： A method for preparing a cationic dyeable flame-retardant high-strength polyester fiber is provided, after mixing oligomer A, oligomer B, and ethylene terephthalate and carrying out a polycondensation reaction to obtain a cationic dyeable flame-retardant polyester masterbatch, adding the cationic dyeable flame-retardant polyester masterbatch to the polyester chips according to a certain ratio for melt spinning, to prepare the cationic dyeable flame-retardant high-strength polyester fiber; oligomer A is prepared by the esterification reaction of a phosphorus flame retardant and a diol; oligomer B is prepared by the esterification reaction of sodium isophthalate sulfonate and a diol; the ratio of the sum of the molar weight of oligomer A and oligomer B to the molar weight of ethylene terephthalate is 3:7-6:4. The preparation method of the invention is simple, the obtained cationic dyeable flame-retardant polyester masterbatch has high crystallinity and good fluidity, and the cationic dyeable flame-retardant high-strength polyester fiber prepared therefrom has excellent mechanical properties, and can be used in automobiles, ships, and the interior decoration of high-class hotels.
-
2.发明公开
公开(公告)号：EP4458881A1
公开(公告)日：2024-11-06
申请号：EP22913005.9
申请日：2022-03-19
发明人： XU, Jinlong , WEI, Tian , MEI, Feng , JI, Peng , WANG, Huaping
IPC分类号： C08G63/85 , C08G63/87 , C08G63/183 , C08G63/181 , C08G63/185 , C08G63/16 , C08K5/521
摘要： A titanium-based composite catalyst for polyester synthesis, preparation and application thereof are provided. The preparation method is: preparing a titanium-silicon catalyst precursor first, adding the titanium-silicon catalyst precursor to a biochar material in a certain mass ratio and mixing evenly, and aging, drying, calcining and wet grinding to obtain a titanium-silicon composite catalyst, and then mixing the titanium-silicon composite catalyst and a phosphate ester with a mass ratio of 1:(0.001-0.5) to obtain the titanium-based composite catalyst for polyester synthesis; the prepared titanium-based composite catalyst for polyester synthesis is composed of the phosphate ester and the titanium-silicon composite catalyst, wherein the phosphate ester is adsorbed and wrapped on the surface of the titanium-silicon composite catalyst; the phosphate ester is combined with a titanium-silicon catalyst in the titanium-silicon composite catalyst by van der Waals force. When using the titanium-based composite catalyst for polyester synthesis of the present invention to prepare polyesters, the addition amount is small, and the prepared polyester has a good hue and a narrow molecular weight distribution.
-
搜索结果
2 条记录 (耗时 0.011 秒)
