序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
61 旋管蒸发器在生产聚酰胺中的应用 CN200780039703.3 2007-10-19 CN101528811B 2012-01-18 R·维斯; J·贝克尔
发明涉及旋管蒸发器在浓缩来自萃取基于聚酰胺(6)的聚酰胺的含萃取溶液中的用途。一种生产基于聚酰胺(6)的聚酰胺的方法包括以下步骤:b)使来自萃取基于聚酰胺(6)的聚酰胺的含水萃取溶液在预反应器中在5-40巴的压和150-300℃的温度下进行单相或二相反应,所述含水萃取溶液可以富含己内酰胺、基己腈、氨基己酸或其混合物,在二相反应中形成的气相可从液相中分离,c)通过旋管蒸发器在220-300℃的温度下排出步骤b)的反应混合物,伴随着压力降到约大气压力并分离气相从而得到液相,d)使步骤c)的液相在240-300℃的温度和大气压力至2巴的压力下进一步反应,伴随着气相的分离。
62 生产具有提高的熔体劲度的模塑组合物或模塑制品的方法 CN200980147742.4 2009-11-17 CN102227465A 2011-10-26 A.多维; R.博伊特; F-E.鲍曼
发明涉及聚酰胺模塑组合物。所述模塑组合物在熔体中利用含有具有至少两个酸酯单元的化合物以及含有其中至少50%的端基作为端基存在的聚醚酰胺的母料来缩合,然后熔融混合物被排出和固化,得到模塑组合物或模塑制品。所获得的产品具有提高的氨端基含量和因此改进的耐解性。
63 一种用于提高聚酰胺分子量的方法 CN200780004896.9 2007-02-06 CN101379116B 2011-05-25 科妮莉亚·艾米利亚·玛丽亚·布龙萨; 迈斯·胡伯特·哲楚德·马亚斯森; 艾伯塔·阿诺德·范吉恩; 瑞尼·亨利克斯·玛丽亚·基尔科斯
发明涉及一种用于提高聚酰胺分子量的方法,所述方法包括第一步骤,在第一步骤中,将所述聚酰胺与含有15至100wt%H2O和85至0wt%N2的第一物料流在90至180℃的温度下以逆流方式接触5至10小时;第二步骤,在第二步骤中,将所述第一步骤中得到的聚酰胺与含有90至100wt%N2和10至0wt%H2O的第二物料流在130至200℃的温度下以逆流方式接触10至30小时。
64 旋管蒸发器在生产聚酰胺中的应用 CN200780039703.3 2007-10-19 CN101528811A 2009-09-09 R·维斯; J·贝克尔
发明涉及旋管蒸发器在浓缩来自萃取基于聚酰胺(6)的聚酰胺的含萃取溶液中的用途。一种生产基于聚酰胺(6)的聚酰胺的方法包括以下步骤:b)使来自萃取基于聚酰胺(6)的聚酰胺的含水萃取溶液在预反应器中在5-40巴的压和150-300℃的温度下进行单相或二相反应,所述含水萃取溶液可以富含己内酰胺、基己腈、氨基己酸或其混合物,在二相反应中形成的气相可从液相中分离,c)通过旋管蒸发器在220-300℃的温度下排出步骤b)的反应混合物,伴随着压力降到约大气压力并分离气相从而得到液相,d)使步骤c)的液相在240-300℃的温度和大气压力至2巴的压力下进一步反应,伴随着气相的分离。
65 一种用于提高聚酰胺分子量的方法 CN200780004896.9 2007-02-06 CN101379116A 2009-03-04 科妮莉亚·艾米利亚·玛丽亚·布龙萨; 迈斯·胡伯特·哲楚德·马亚斯森; 艾伯塔·阿诺德·范吉恩; 瑞尼·亨利克斯·玛丽亚·基尔科斯
发明涉及一种用于提高聚酰胺分子量的方法,所述方法包括第一步骤,在第一步骤中,将所述聚酰胺与含有15至100wt%H2O和85至0wt%N2的第一物料流在90至180℃的温度下以逆流方式接触5至10小时;第二步骤,在第二步骤中,将所述第一步骤中得到的聚酰胺与含有90至100wt%N2和10至0wt%H2O的第二物料流在130至200℃的温度下以逆流方式接触10至30小时。
66 脂肪族聚酯-酰胺组合物及其制备方法 CN200680021463.X 2006-06-14 CN101198640A 2008-06-11 R·布鲁斯; R·J·库普曼斯
发明涉及增大聚合物的分子量,并在聚合物中任选地提供支化的方法,该聚合物具有包括脂肪族二羧酸与双酰胺二醇或双(二酰胺二酯)缩合反应的残基的第一重复单元,以及包括二醇与脂肪族二羧酸缩合反应的残基的第二重复单元。本发明也涉及可用这种方法制备的支化聚合物。
67 在尼龙6的固相工艺中通过温度程控来增加挥发分的除去 CN02811094.3 2002-05-29 CN1320030C 2007-06-06 A·W·阿尔索普; D·N·马克斯
通过两阶段的加热过程,提高尼龙6的分子量和同时降低它的己内酰胺和其它挥发分的含量的一种方法。
68 聚酰胺的连续萃取 CN98813302.4 1998-11-24 CN1175030C 2004-11-10 P·希尔登布兰德; R·朗; A·卢德维格; G·皮珀
一种在一基本上为垂直的萃取塔中,使用一性萃取剂连续萃取聚酰胺颗粒的方法,包括使用分隔为两个区域的萃取塔,以及执行在第一区中利用15-40%重量强度的水性ε-己内酰胺溶液的再循环作用,且而后在第二区中利用低5至40℃的逆流水所作的萃取。该方法提供了具有低单体及寡聚物含量的聚酰胺的经济性萃取方法。
69 在尼龙6的固相工艺中通过温度程控来增加挥发分的除去 CN02811094.3 2002-05-29 CN1513014A 2004-07-14 A·W·阿尔索普; D·N·马克斯
通过两阶段的加热过程,提高尼龙6的分子量和同时降低它的己内酰胺和其它挥发分的含量的一种方法。
70 改进的活性清除剂包装 CN99814916.0 1999-11-16 CN1332688A 2002-01-23 乔治·E·罗特; 保罗·J·卡希尔; 塔米拉·J·巴恩斯; 查尔斯·W·鲍尔; 戴维·C·约翰逊; 马修·A·库尔茨克; 楚伊-云·林奇; 沃尔特·M·尼德雷克
发明公开了经改进的活性清除包装物品,该物品任选地还包括SiO2和/或EAA涂层。还公开了经改进的活性氧清除共缩聚物及其在包装物品中的应用。具体公开了:(1)氧化减速剂或控制剂(抗氧化剂)与共缩聚物清除剂的一起使用,和(2)基本上在无氧情况下的共缩聚物聚合后处理。这些改进导致通过活性氧清除剂来增加氧的消耗以及改善活性氧清除共缩聚物的包装特性。
71 聚酰胺粒子的萃取方法 CN99803392.8 1999-02-19 CN1291906A 2001-04-18 R·莫尔施拉德特; V·希尔德布兰德特; V·瓦策尔汉
发明是关于以胺基腈及选择性且有生成聚酰胺的单体,生成聚酰胺之寡聚物或其混合物的溶液萃取聚酰胺粒子或含聚酰胺的聚合物粒子。
72 聚酰胺的连续萃取 CN98813302.4 1998-11-24 CN1284096A 2001-02-14 P·希尔登布兰德; R·朗; A·卢德维格; G·皮珀
一种在一基本上为垂直的萃取塔中,使用一性萃取剂连续萃取聚酰胺颗粒的方法,包括使用分隔为两个区域的萃取塔,以及执行在第一区中利用15—40%重量强度的水性ε-己内酰胺溶液的再循环作用,且而后在第二区中利用低5至40℃的逆流水所作的萃取。该方法提供了具有低单体及寡聚物含量的聚酰胺的经济性萃取方法。
73 聚酰胺的连续萃取 CN98813300.8 1998-11-24 CN1284095A 2001-02-14 J·埃尔贝斯; A·卢德维格; G·皮珀
一种在一分隔为两个区域的垂直萃取塔中,利用一再循环萃取剂连续萃取聚酰胺颗粒的方法,它包括在第一区中,于从100到140℃的温度下,以一含有从40—95%重量分率的ε-己内酰胺的性萃取剂处理该聚酰胺,且而后在第二区中以水进行后处理,然后可利用一传统方式对己内酰胺进行萃取。该方法提供了具有低双聚体含量的聚酰胺的经济性生产法。
74 COAGULABLE POLYMER SOLUTION WITH AROMATIC HIGH-PERFORMANCE POLYMERS DISSOLVED IN THE SOLUTION, METHOD FOR OBTAINING SAME, AND USE THEREOF PCT/EP2016074594 2016-10-13 WO2017064188A8 2017-06-22 VOIS JÖRG; GÄHR FRANK; HERMANUTZ FRANK
The invention relates to a wet and dry-wet coagulable polymer solution, in particular a dry-wet spinnable polymer solution, which is based on ionic liquids and which comprises a content of aromatic high-performance polymers dissolved in the solution in the form of aromatic polyamides, aromatic polyamide imides, aromatic polyimides and/or polybenzimidazole which have been removed from textile fiber materials containing pollutants, in particular textile waste fiber, using the ionic liquid. The polymer solution contains 0.5 to 30 wt.% of the high-performance polymers and more than 0.01 wt.%, in particular 0.01 to 3 wt.% of pollutants, and has a null viscocity of 1.5 to 30,000 Pa s in particular. The invention further relates to a method for producing such a polymer solution and to the use thereof for producing fibers by wet or dry-wet spinning and for producing films by wet or dry-wet coagulation. The advantage of products obtained in this manner is that the content of toxic pollutants is sharply reduced to a negligible level, in particular less than 20 ppm, in particular less than 5 ppm.
75 APPARATUS AND METHOD OF SEPARATING A POLYMER FROM A SOLVENT PCT/US2008058902 2008-03-31 WO2009136904A3 2010-01-21 GIAMMATTEI MARK HOWARD; QUEVEDO SANCHEZ BERNABE; RAMESH NARAYAN; SILVI NORBERTO
The present invention relates to various embodiments of a system and method for separating polymer from a solvent. In one embodiment a system for separating polymer from a solvent comprises an extrusion apparatus includes a hollow member having a first end portion, a second end portion, and a feed port between the first end portion and the second end portion. The extrusion apparatus includes a back flash vent port disposed upstream of the feed port and a forward flash vent port disposed downstream of the feed port. The extrusion apparatus further includes a vent insert located at the forward flash vent port, a screw disposed inside the hollow member, and an internal superheating section disposed between the feed port and the downstream vent opening of the hollow member such that the length of the internal superheating section is greater than about four times the diameter, 4D, of the hollow member.
76 ACTIVE OXYGEN SCAVENGER PACKAGING PCT/US9927117 1999-11-16 WO0037321B1 2001-12-20 ROTTER GEORGE E; CAHILL PAUL J; BARNES TAMILA J; BAUER CHARLES W; JOHNSON DAVID C; KULZICK MATTHEW A; LYNCH TSUEI-YUN; NYDEREK WALTER M
Improved active oxygen scavenging packaging articles optionally further comprising SiO2 and/or EAA coatings are disclosed. Also improved active oxygen scavenging copolycondensates and their use in packaging articles are disclosed. Specifically disclosed are (1) the use of an oxidation moderator or controller (anti-oxidant) along with the copolycondensate scavenger and (2) post polymerization treatment of the copolycondensate substantially in the absence of oxygen. The improvements lead to increased oxygen consumption by the active oxygen scavenger and improved packaging characteristics for the active oxygen scavenging copolycondensates.
77 Batch process for preparing polyamides US13058779 2009-08-14 US10017609B2 2018-07-10 Philippe Desbois; Faissal-Ali El-Toufaili; Michael Gall; Andreas Wollny
Polyamides based on dicarboxylic acids and on diamines are produced in a batch process by 1) feeding the entire amount of monomer composed of dicarboxylic acids, of diamines, and, if appropriate, of further polyamide-forming monomers, in the desired stoichiometry, in a closed stirred-tank reactor, 2) heating the monomer mixture in the stirred-tank reactor, with stirring, and with setting of a certain pressure, to a desired reaction temperature for the production of a prepolymer, 3) if appropriate, completely or partially depressurizing the reaction mixture from stage 2), 4) if appropriate, carrying out further thermal treatment of the reaction mixture from stage 2) or 3), and 5) reacting the reaction mixture from stage 2), 3), or 4) in the melt in a vented extruder for further increase of the molecular weight, with discharge of water vapor, and without use of additional polyamide-forming monomers or of polyamides.
78 PROCESS AND APPARATUS FOR THE PRODUCTION OF A LOW-SHRINKAGE ALIPHATIC POLYAMIDE YARN, AND LOW-SHRINKAGE YARN US15537866 2015-12-05 US20170327972A1 2017-11-16 Lassad NASRI; Roman STEPANYAN; Martinus Joseph Maria KEULERS
A process and an apparatus for production of a low-shrinkage aliphatic polyamide fibre, in which polyamide is extruded through a spinneret to form filaments, then cooled and combined to form at least one yarn. The at least one yarn is subjected to drawing between the spinneret and a pair of inlet rolls, then in a further multi-stage drawing step is subjected to 4-fold to 6-fold drawing by pairs of draw rolls. The pairs of draw rolls successively heat the yarn and at least the last pair of draw rolls has a temperature of 5° C. to 20° C. below the melting point of the yarn. The yarn is relaxed by from 6% to 10% in a subsequent at least three-stage relaxation zone and is kept in a temperature range of 5° C. to 15° C. below the melting point of the yarn, and is subsequently wound up on a reel device. The invention further relates to a yarn composed of a low-shrinkage aliphatic polyamide fibre.
79 NYLON POWDER COMPOSITION FOR 3D PRINTING, AND PREPARATION METHOD AND APPLICATION THEREOF US15507662 2015-04-24 US20170253702A1 2017-09-07 Yongmei MA; Kun ZHENG; Jingnan ZHANG; Xinyu CAO; Fusong WANG; Xuechun LIN; Wenhua SUN; Jian XU; Jinyong DONG; Chuncheng LI; Wenxin FU
This invention relates to a high molecular weight nylon powder composition for 3D printing, its preparation method and use. The composition comprises: 100 parts by weight of high-viscosity nylon powder, 1-5 parts by weight of a flow agent, and 0.1-1 parts by weight of an antioxidant; the high-viscosity nylon powder is one or more selected from nylon 6, nylon 66, nylon 11, nylon 12, nylon 612 and nylon 610; or the powder composition is obtained via polymerization reaction of the raw materials comprising the following components, based on the weight parts of lactam monomers or amide monomers: 100 parts by weight of lactam monomers or amide monomers, 0.005-1 parts by weight of a catalyst, and 0.1-1 parts by weight of an antioxidant. The high molecular weight nylon powder composition prepared in the present invention has a particle diameter in the range of 20-100 micrometers, good powder spreading performance, and is suitable for the 3D printing process, and the product of the high molecular weight nylon powder composition has good mechanical properties, good dimensional stability and low manufacturing cost.
80 PRODUCTION OF POLYAMIDES BY HYDROLYTIC POLYMERIZATION AND SUBSEQUENT TREATMENT IN A KNEADER US15311414 2015-05-13 US20170081472A1 2017-03-23 Ning ZHU; Ruediger HAEFFNER; Achim STAMMER; Cesar ORTIZ; Silke BIEDASEK; Faissal-Ali EL-TOUFAILI
The present invention provides a process for producing polyamides, which comprises a) providing a monomer composition comprising at least one lactam or at least one aminocarbonitrile and/or oligomers of these monomers, b) reacting the monomer composition provided in step a) in a hydrolytic polymerization at elevated temperature in the presence of water to obtain a reaction product comprising polyamide, water, unconverted monomers and oligomers, c) the reaction product obtained in step b) being fed into at least one kneader (3) and subjected to a postpolymerization, d) optionally forming the reaction product obtained in step c) to obtain polyamide particles, e) optionally treating the reaction product obtained in step c) or the polyamide particles obtained in step d) with at least one extractant.
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