-
公开(公告)号：US11091587B2
公开(公告)日：2021-08-17
申请号：US17042127
申请日：2019-10-28
发明人： Shanshui Wang , Lili Wang , Jiangen Shen
摘要： A type of wool-like polyester filament and preparing method thereof are disclosed. The preparing method is manufacturing filament from a modified polyester through a POY process and a successive DTY processes, wherein the modified polyester is the product of the esterification and the successive polycondensation reactions of evenly mixed terephthalic acid, 1,4-butanediol, fluorinated dicarboxylic acid, tert-butyl branched hexanediol and 2,5,6,6-tetramethyl-2,5-heptanediol. The obtained fiber has a dye uptake of 90.32-93.27% and a K/S value of 22.15-23.42 when dyed at 100° C., and has an intrinsic viscosity drop of 17-20% when stored at 25° C. and R.H. 65% for 60 months. This invention features a method with ease of application and a product with good dyeing and degradation performance.
-
公开(公告)号：US10961641B2
公开(公告)日：2021-03-30
申请号：US17042957
申请日：2019-10-28
发明人： Hongwei Fan , Lili Wang , Jiangen Shen
IPC分类号： D01F6/92 , D01D5/253 , D01F1/10 , D01D5/088 , C08G63/695 , C08G63/46 , C08G63/86 , C08G63/183 , C08K5/524 , C08K5/521
摘要： A type of feather-like polyester fiber and a preparing method thereof are disclosed. The preparing method is to manufacture filament from a modified polyester through a POY process with a four-fold flat spinneret and a successive DTY processes, wherein said modified polyester is the product of the esterification and the successive polycondensation reactions of evenly mixed terephthalic acid, ethylene glycol, main-chain silicated diol and fluorinated dicarboxylic acid, and the spinneret is the one set with four-fold flat shaped orifices. The obtained fiber has a dye uptake of 89.6-93.7% when dyed at 130° C., and has an intrinsic viscosity drop of 13-20% when stored at 25° C. and R.H. 65% for 60 months. This invention is simple to apply and features a product with good dyeing and degradation performance.
-
公开(公告)号：US10815333B2
公开(公告)日：2020-10-27
申请号：US15744853
申请日：2016-06-12
发明人： Hongwei Fan , Wengang Li , Yanfang Wang , Lili Wang , Damao Yang , Fangming Tang , Lixin Yin , Guangkun Song
IPC分类号： C08G63/183 , C08G63/83 , D01F6/62
摘要： A high-modulus low-shrinkage polyester industrial yarn obtained by subjecting a polyester to dissolution, washing and solid state polycondensation followed by spinning. The high-modulus low-shrinkage polyester industrial yarn has a dry heat shrinkage rate of 2.0±0.25% under test conditions of 177° C.×10 min×0.05 cN/dtex. The average value of the crystal volume Vc of the high-modulus low-shrinkage polyester industrial yarn is larger than 230 nm3. The high-modulus low-shrinkage polyester industrial yarn has a fiber modulus of ≥100 cN/dtex. The polycondensation catalyst consists of magnesium ethylene glycol and antimony ethylene glycol, which has a small thermal degradation coefficient.
-
公开(公告)号：US10358525B2
公开(公告)日：2019-07-23
申请号：US15744867
申请日：2016-06-12
发明人： Hongwei Fan , Fangming Tang , Xiaoyu Wang , Wengang Li , Lili Wang , Shanshui Wang , Qianhan Liu , Zangzang Niu
IPC分类号： C08G63/02 , C08G63/183 , C08G63/83 , C08G63/90 , C08G63/86 , C25B3/12 , D01F6/62 , C08G63/78
摘要： A polyester obtained by the esterification of terephthalic acid and ethylene glycol and the polycondensation catalysed by a mixture of magnesium ethylene glycol and antimony ethylene glycol followed by granulation. In the polyester sections, the carboxyl end group is less than 15 mol/t, the mass percentage of oligomer is lower than 0.5%, and weight percentage of diethylene glycol is lower than 0.5%.
-
公开(公告)号：US11702768B2
公开(公告)日：2023-07-18
申请号：US17787951
申请日：2020-06-10
发明人： Hongwei Fan , Fangming Tang , Shanshui Wang , Lixin Yin , Lili Wang
IPC分类号： D01D5/12 , D01D5/253 , D01F6/60 , D01F6/62 , D02G1/18 , D02G1/20 , D02J1/22 , D02J13/00 , D01D5/32 , D01D5/08 , D01D5/22 , D01D10/02 , D01F8/12 , D01F8/14 , D02G1/00 , D02G3/32
CPC分类号： D01D5/32 , D01D5/08 , D01D5/082 , D01D5/22 , D01D10/02 , D01F8/12 , D01F8/14 , D02G1/004 , D02G1/205 , D02G3/326 , D02J1/229 , D10B2331/02 , D10B2331/04 , D10B2401/061
摘要： A preparation method of self-crimping elastic combined filament yarns for knitting is disclosed, wherein the combined filament yarns are extruded from the same spinneret; a first fiber-forming polymer melt is divided into two ways, one is directly extruded after distribution; and the other is extruded after distribution by side-by-side composite spinning together with a second fiber-forming polymer melt; the first fiber-forming polymer and the second fiber-forming polymer are compatible or partially compatible; on the same spinneret, a ratio of the number of spinneret holes m for direct extrusion to the number of spinneret holes n for extrusion after distribution by side-by-side composite spinning is 1:(5-10); the self-crimping elastic combined filament yarns for knitting are prepared according to specific spinning processes, wherein the combined filament yarn mainly comprises a first fiber-forming polymer monofilament and a first/second fiber-forming polymer side-by-side composite monofilament; wherein the monofilament crimping directions are randomly distributed.
-
公开(公告)号：US11629436B2
公开(公告)日：2023-04-18
申请号：US16638479
申请日：2018-07-27
发明人： Hongwei Fan , Shanshui Wang , Lixin Yin , Lili Wang
IPC分类号： D01D5/24 , D01D5/096 , D01F6/62 , D01F11/08 , D06M13/11 , D06M13/224 , D06M13/256 , D06M13/295 , D01D5/12 , D01D5/088 , D01D10/02 , D01D7/00 , D06M101/32
摘要： A lightweight heat-preserving fiber and a preparation method thereof are provided, wherein the fiber is prepared by measuring, composite spinneret's extruding, cooling, oiling, drawing, heat setting and winding a polyester melt. The composite spinneret has a hollow spinning hole and a circular spinning hole. The ratio of the micropore length of hollow spinning hole to circular spinning hole equals to the ratio of the equivalent diameter of hollow spinning hole to circular spinning hole multiplies the coefficient K, and the equivalent diameter is the ratio of the cross-sectional area to the circumference of the cross-section, the coefficient K ranges from 0.97 to 1.03. The oil agent contains a crown ether, and the content of the crown ether ranges from 67.30 to 85.58 wt %. The thermal conductivity of a knitted fabric having a basis weight of 100 g/m2 prepared by lightweight heat-preserving fiber is no larger than 0.150 W/m·K.
-
公开(公告)号：US10465041B2
公开(公告)日：2019-11-05
申请号：US16322948
申请日：2017-06-26
发明人： Hongwei Fan , Zhili Liu , Wengang Li , Fangming Tang , Lili Wang , Lixin Yin
IPC分类号： C08G63/81 , C08G63/183 , D01F6/62 , D06P3/54
摘要： A method for preparing the modified polyester. The modified polyester segments include terephthalic acid segment, ethylene glycol diol segment and branched diol segment, in which the branched diol segment refers to a diol segment in which a branch is located on a non-terminal carbon in the glycol segment and the branch is a linear carbon chain having 5 to 10 carbon atoms. The method includes preparing terephthalic acid glycol ester through the esterification of terephthalic acid and branched diol using the concentrated sulfuric acid as the catalyst. Then get ethylene terephthalate through the esterification of terephthalic acid and ethylene glycol. After stirring and mixing the two, the modified polyester can be obtained through polycondensation reaction of a low vacuum stage and a high vacuum stage using the catalyst and stabilizer.
-
公开(公告)号：US11788212B2
公开(公告)日：2023-10-17
申请号：US17042129
申请日：2019-10-29
发明人： Lili Wang , Zangzang Niu , Chaoming Yang
CPC分类号： D01F6/92 , B01J23/18 , C08K3/22 , D01F11/08 , D10B2331/04
摘要： A type of semi-dull polyester drawn yarns and preparing method thereof are disclosed. The preparing method is to melt spinning a modified polyester with FDY technique, wherein the modified polyester is the product of the esterification and the successive polycondensation reactions of evenly mixed terephthalic acid, ethylene glycol, main chain silicated diol, fluorinated dicarboxylic acid, matting agent and doped Bi2O3, in which the main chain silicated diol could be dimethylsiloxane diol, dimethyldiphenyldisiloxane glycol or tetramethyldisiloxane diol, and in which the fluorinated dicarboxylic acids could be 2,2-difluoro-1,3-malonic acid, 2,2-difluoro-1,4-succinic acid, 2,2-difluoro-1,5-glutaric acid or 2,2,3,3-tetrafluoro-1,4-succinic acid. The obtained fiber has a dye uptake of 87.5-91.8% when dyed at 120° C., and has an intrinsic viscosity drop of 18-26% when stored at 25° C. and R.H. 65% for 60 months. This invention features a method with ease of application and a product with good dyeing and degradation performance.
-
公开(公告)号：US11686018B2
公开(公告)日：2023-06-27
申请号：US17789218
申请日：2020-06-11
发明人： Shanshui Wang , Hongwei Fan , Fangming Tang , Lili Wang
摘要： A degradable polyester fiber and its preparation method are disclosed. The preparation method is to cool a PET melt dispersing with doped ZrO2 powder by ring-blowing after extruded from a trilobal spinneret hole on a spinneret, and manufacture a fully drawn yarn (FDY) according to an FDY process with the PET melt, then the degradable polyester fiber is prepared after a relaxation heat treatment. The trilobal spinneret hole on the spinneret has three leaves with unequal lengths and angles, and all the trilobal spinneret holes are distributed in concentric circles, with a center line of the leaf opposite to the smallest angle in each trilobal spinneret hole passing through the center of the circle, and pointing away from the center of the circle. The process is simple, and the obtain fiber has good performances in degradation and elasticity.
-
公开(公告)号：US11639562B2
公开(公告)日：2023-05-02
申请号：US16640061
申请日：2018-07-27
发明人： Hongwei Fan , Shanshui Wang , Lili Wang , Lixin Yin
IPC分类号： D01D1/06 , D01D5/12 , D01D5/253 , D01F1/10 , D01F6/62 , D02J1/22 , D06M13/165 , D01F6/92 , D01D5/088 , D01D5/096 , D01D5/16 , D01D10/02 , D01D5/08 , D06M101/32
摘要： A thermal-moisture comfortable polyester FDY for summer use and a preparation method thereof are provided. The FDY is made of matting agents dispersed polyester via the steps of spinning melt metering, extruding via the compositional spinneret, cooling, oiling, drawing, heat setting and winding. The woven fabrics manufactured with the FDY possess a wicking height and an evaporation rate of larger than or equal to 135 mm and 0.22 g/h, respectively. The compositional spinneret is simultaneously provided with cruciform orifices and circular orifices, and the length ratio of cruciform orifice to circular orifice is equal to the product of their equivalent diameter ratio and a coefficient K, here equivalent diameter is the ratio of orifice cross-section area to its circumference and K ranges from 0.97 to 1.03, and the oiling involves the oiling agent containing 67.30-85.58 wt % of crown ether.
-
-
-
-
-
-
-
-
-
搜索结果
18 条记录 (耗时 0.021 秒)
