公开(公告)号：US4668241A

公开(公告)日：1987-05-26

申请号：US723726

申请日：1985-04-17

申请人： Eugenio Magni ,  Claudio Pernetti

发明人： Eugenio Magni ,  Claudio Pernetti

IPC分类号： D06P3/24 ,  D06P1/39

CPC分类号： D06P3/241 ,  Y10S8/924 ,  Y10S8/929

摘要： A method of dyeing textile materials of polycapronamide, enabling low temperature dyeing conditions and process duration times which do not exceed the art standards, is characterized by the following combined features: (a) use of at least two discrete combinations of dyestuffs, which show different kinetic behaviors from each other; (b) maintenance of an alkaline pH at tapering values, in the extreme down to neutral; (c) use of exclusively anionic dyeing aids; and (d) maintenance through the various method steps of a maximum temperature as high as 60.degree. C., preferably as 40.degree. C.Perfectly uniform dyeing is achieved through the utilization of conventional apparata and dyeing method procedures.

摘要翻译： 染色聚己内酯纺织材料的方法，使得低温染色条件和加工持续时间不超过本领域标准，其特征在于以下组合特征：（a）使用至少两种离散的染料组合，其显示不同 相互作用的动力学行为; （b）在渐变值下保持碱性pH值，极端降至中性; （c）使用专门的阴离子染色助剂; 和（d）通过最高温度高达60℃，优选40℃的各种方法步骤进行维护。通过使用常规的设备和染色方法程序来实现完全均匀的染色。

公开(公告)号：US4471699A

公开(公告)日：1984-09-18

申请号：US479793

申请日：1983-03-28

申请人： Vincenzo Turco ,  Antonio Pompili

发明人： Vincenzo Turco ,  Antonio Pompili

IPC分类号： F42B7/10 ,  F42B11/28

CPC分类号： F42B7/10

摘要： A projectile for a smooth bore gun includes a metal bullet, substantially de of lead, and a wad-flight control element of plastic material. The bullet is constituted by a metal body provided with an ogive with centering fins and comprises one or more cylindrical segments. The wad-flight control element comprises a container, connected to the bullet and containing the same, an amortizing portion and a cup for sealing off propellant gases. The amortizing portion and the sealing cup act to control the projectile during flight.

摘要翻译： 用于光滑钻孔枪的抛射体包括基本上由铅制成的金属子弹和塑料材料的整流控制元件。 子弹由设置有具有定心翅片的金属体构成，并且包括一个或多个圆柱形段。 排气控制元件包括连接到子弹上并容纳其的容器，用于密封推进剂气体的摊销部分和杯子。 摊铺部分和密封杯用于在飞行过程中控制射弹。

公开(公告)号：US4376680A

公开(公告)日：1983-03-15

申请号：US100907

申请日：1979-12-10

申请人： Edgardo Horak ,  Alvaro Casati ,  Giancarlo Bianucci ,  Luigi Marafioti ,  Silvio Notarbartolo

发明人： Edgardo Horak ,  Alvaro Casati ,  Giancarlo Bianucci ,  Luigi Marafioti ,  Silvio Notarbartolo

IPC分类号： C08G69/16 ,  C08G69/46 ,  B01D1/22 ,  B01D3/12

CPC分类号： C08G69/46 ,  C08G69/16

摘要： The process and an apparatus for separating and recovering caprolactam moer from polycapronamide are described. A process comprises subjecting a molten capronamide to the action of a vacuum while it flows as a thin layer, extracting therefrom caprolactam as a vapor and condensing the caprolactam vapor by contact with a stream of molten caprolactam, substantially under the same vacuum to which the polymer has been subjected. Preferably the caprolactam vapor and the molten caprolactam flow equicurrently, the molten caprolactam being suitably subdivided. Heat exchange intensifying surfaces are present in the equicurrent flow path. The molten caprolactam is circulated in a closed circuit. The apparatus comprises thin layer evaporator, feed means, a condenser, means for creating a vacuum in the evaporator, and means in the condenser for determining the desired path and subdivision of molten and vapor caprolactam streams, a molten caprolactam circulation circuit and means for drawing off caprolactam from said circuit.

摘要翻译： 描述了从聚己内酰胺分离和回收己内酰胺单体的方法和装置。 一种方法包括使熔融的天竺葵酰胺作为薄层的作用，同时以薄层流动，从其中提取出己内酰胺作为蒸气，并将己内酰胺蒸气与熔融己内酰胺流接触并与基本上在相同真空下的聚合物 已经受到影响 优选地，己内酰胺蒸气和熔融己内酰胺等量地流动，熔融己内酰胺适当地细分。 热交换强化表面存在于等流路上。 熔融己内酰胺在闭路中循环。 该装置包括薄层蒸发器，进料装置，冷凝器，用于在蒸发器中产生真空的装置，以及用于确定熔融和蒸气己内酰胺流的期望路径和细分的冷凝器中的装置，熔融己内酰胺循环回路和拉伸装置 从所述电路中除去己内酰胺。

公开(公告)号：US4368078A

公开(公告)日：1983-01-11

申请号：US157109

申请日：1980-06-06

申请人： Gianfranco Angelini ,  Ugo Paoletti

发明人： Gianfranco Angelini ,  Ugo Paoletti

IPC分类号： D01F2/06 ,  C08B9/00 ,  D01F2/00 ,  C08L1/24

CPC分类号： C08B9/00

摘要： A process for the xanthation of alkali-cellulose comprises the reaction ofhe alkali-cellulose with CS.sub.2 in excess with respect to the desired xanthate substitution degree at a pressure which increases from the initial 110 mm Hg to about 400-500 mm Hg and at a temperature increasing from about 21.degree. C. to about 23.degree.-25.degree. C. The unreacted CS.sub.2 is removed from the reactor, once the desired xanthate substitution degree is reached, by application of a vacuum. This viscose rayon continuous spinning process eliminates the need for the usual desulphuration phase for decreasing the sulphur content and for bleaching the product. The viscose obtained has reduced content of compounds capable of forming elementary sulphur. The regenerated cellulose yarn has improved characteristics as to the sulphur content and degree of whiteness.

摘要翻译： 碱纤维素的黄原酸化方法包括在从最初的110mm Hg增加到约400-500mm Hg的压力下，碱金属纤维素与CS2的过量相对于期望的黄原酸酯取代度的反应， 温度从约21℃升高至约23-25℃。一旦达到所需的黄原酸酯取代度，通过施加真空将未反应的CS 2从反应器中除去。 这种粘胶人造丝连续纺丝方法消除了通常的硫化阶段的需要，以减少硫含量和漂白产品。 获得的粘胶具有减少能形成基本硫的化合物的含量。 再生纤维素纱具有改善的硫含量和白度的特性。

公开(公告)号：US4349473A

公开(公告)日：1982-09-14

申请号：US199218

申请日：1980-10-21

申请人： Pier P. Rossi ,  Mario Catoni

发明人： Pier P. Rossi ,  Mario Catoni

IPC分类号： C07D201/16 ,  B01J19/18 ,  C07D201/08 ,  C07D201/10

CPC分类号： C07D201/10 ,  B01J19/1862 ,  C07D201/08 ,  B01J2219/00058 ,  B01J2219/00094 ,  B01J2219/00128

摘要： Process for the preparation of .omega.-lactams (in particular caprolactam)ith improved yields, by reaction of cycloaliphatic derivatives having the general formula: ##STR1## wherein n=3-13 with nitrosating agents in the presence of dehydrating agents, characterized by the fact that the reaction is carried out a low temperature which is constant between stages, and in all the zones of a stage and with particular concentrations of the dehydrating agent.

摘要翻译： 通过在脱水剂存在下，通过使具有以下通式的脂环族衍生物（其中n = 3-13）与亚硝化剂反应制备具有改善产率的ω-内酰胺（特别是己内酰胺）的方法，其特征在于： 反应进行阶段之间恒定的低温，在一个阶段的所有区域和特定浓度的脱水剂中进行。

公开(公告)号：US4329297A

公开(公告)日：1982-05-11

申请号：US131106

申请日：1980-03-18

申请人： Pietro P. Rossi ,  Mario De Gaetano

发明人： Pietro P. Rossi ,  Mario De Gaetano

IPC分类号： C07C227/06 ,  C07C67/00 ,  C07C227/00 ,  C07C227/08 ,  C07C227/18 ,  C07C229/08 ,  C11C1/00

CPC分类号： C07C227/08

摘要： A process for continuous or batch preparation of an .omega.-amino-acid is scribed, comprising the imination of an unsaturated aldehyde acid, the catalytic reduction in a single hydrogenation step of the imine of the ethylenically unsaturated straight chain .omega.-aldehyde acid in the presence of ammonia and an alkaline metal hydroxide whereby the alkaline salt of the imine is obtained, and the acidification of the alkaline salt of the .omega.-amino acid. The imine of formyl alkenoic acid is prepared at most at room temperature adding the acid to an ammonia solution of above 10%, then adding NaOH solution to the ammonia solution. The reductive imination is effectuated in two steps, first at 100.degree.-150.degree. C. and the second at 150.degree.-180.degree. C. under a 20-70 Ate pressure in the presence of a nickel catalyst. High yield and only few by-products are obtained.

摘要翻译： 描述了连续或间歇制备ω-氨基酸的方法，其包括不饱和醛酸的模拟，在烯属不饱和直链ω-甲醛酸的亚胺的单一氢化步骤中的催化还原在存在下 的氨和碱金属氢氧化物，由此得到亚胺的碱性盐，并且酸化氨基酸的ω-氨基酸。 最多在室温下制备甲酰基烯酸的亚胺，将酸加入到10％以上的氨溶液中，然后向氨溶液中加入NaOH溶液。 还原仿制分两步进行，首先在100°-150℃下进行，第二步在150°-180℃下，在20-70℃下，在镍催化剂存在下进行。 产量高，只有少量副产品得到。

公开(公告)号：US4178287A

公开(公告)日：1979-12-11

申请号：US968807

申请日：1978-12-12

申请人： Roberto Mattone ,  Mario Catoni

发明人： Roberto Mattone ,  Mario Catoni

IPC分类号： C07D201/16 ,  C07D223/10

CPC分类号： C07D223/10 ,  C07D201/16

摘要： There is described a process for the purification of caprolactam from the idable impurities present therein, by means of a treatment with an oxidizing agent consisting of ozone, the process comprising the steps of dissolving the polluted caprolactam into a solvent inert to ozone, such as water, and of causing the ozone to bubble through the resulting solution, the concentration of the caprolactam in the solution being preferably comprised between about 40% and 78% by weight of caprolactam, and the treatment being preferably effected at a temperature between the freezing temperature of the solution and 70.degree. C.

摘要翻译： 描述了通过用由臭氧组成的氧化剂的处理从其中存在的可氧化杂质中纯化己内酰胺的方法，该方法包括以下步骤：将被污染的己内酰胺溶解在对臭氧惰性的溶剂中，例如水 ，并且通过所得溶液使臭氧气泡，所述溶液中己内酰胺的浓度优选为己内酰胺的约40％至78％（重量），并且处理优选在冷冻温度 溶液和70℃

公开(公告)号：US4143031A

公开(公告)日：1979-03-06

申请号：US728206

申请日：1976-09-30

申请人： Aldemaro Ciaperoni ,  Giuseppe Quaglia ,  Gino Dall'Asta

发明人： Aldemaro Ciaperoni ,  Giuseppe Quaglia ,  Gino Dall'Asta

IPC分类号： C08G63/682 ,  D01F6/92 ,  C08G63/18 ,  C08G63/66 ,  C08G63/76

CPC分类号： C08G63/682 ,  C08K3/22 ,  D01F6/92

摘要： There is described a family of copolyester compositions for producing heatnd flame resistant fibers, said compositions being prepared by polycondensating (A) an aromatic diacid, (B) a diol, (C) a tetrabrominated diol, (D) a derivative of a polyvalent metal, all said components being hereinbelow defined, the polycondensation process being carried out in several successive stages of copolycondensation of components (A), (B) and (C) until reaching a stable viscosity, then adding component (D), and stopping the reaction before the intrinsic viscosity of the composition decreases below a value proper for subsequent spinning.

公开(公告)号：US4126646A

公开(公告)日：1978-11-21

申请号：US732957

申请日：1976-10-15

申请人： Aldemaro Ciaperoni ,  Giuseppe Quaglia ,  Gino Dall'Asta

发明人： Aldemaro Ciaperoni ,  Giuseppe Quaglia ,  Gino Dall'Asta

IPC分类号： C08L67/00 ,  C07C309/58 ,  C08G63/66 ,  C08G63/68 ,  C08G63/688 ,  C08K5/03 ,  C09K21/08 ,  C09K21/14 ,  D01F6/84 ,  D01F6/92

CPC分类号： C07C309/00 ,  C08G63/6886 ,  C09K21/08 ,  C09K21/14 ,  D01F6/84 ,  Y10S260/24

摘要： A thermostable flameproofing agent for copolyesters is prepared by reactingne mol of a diester of an alkali dicarboxyaryl sulphonate with 1-2 mols of at least one tetrabrominated diol in the presence of a transesterification catalyst chosen in the group consisting of compounds of Zn, Co, Ca, Sn, Ti and Mn. Copolyester compositions adapted for the preparation of formed bodies are prepared by the polycondensation of a dicarboxylic arylic acid or its diesters and a saturated aliphatic diol with said flameproofing agent and up to 1% by weight of a derivative of phosphorus in the presence of a catalyst consisting of Sb.sub.2 O.sub.3 or GeO.sub.2. Said compositions preferably have an intrinsic viscosity not less than 0.40 dl/g before their transformation into formed bodies and not less than 0.35 dl/g after said transformation.

公开(公告)号：US4054588A

公开(公告)日：1977-10-18

申请号：US658589

申请日：1976-02-17

申请人： Francesco Siclari ,  Pietro Paolo Rossi ,  Mario De Gaetano

发明人： Francesco Siclari ,  Pietro Paolo Rossi ,  Mario De Gaetano

IPC分类号： C07B61/00 ,  B01J23/00 ,  C07B31/00 ,  C07C67/00 ,  C07C227/00 ,  C07C227/06 ,  C07C227/08 ,  C07C227/10 ,  C07C229/08 ,  C09F5/00 ,  C11C3/00

CPC分类号： C07C227/08

摘要： The specification describes a process for preparing saturated omega-aminods from olefinically unsaturated omega-aldehydoacids. According to the invention, the starting aldehydoacid is transformed into the corresponding iminoacid, and this is subjected to the hydrogenation both of the imino function and of the ethylenic double bond or double bonds, in a single stage and in the presence of an hydrogenation catalyst. The catalyst is a transition metal of one of the first two sub-groups of the VIII group of the periodic system, viz. is chosen among Fe, Ru, Os, Co, Rh, and Ir, and is used in the metal state or as a compound.

摘要翻译： 本说明书描述了从烯属不饱和ω-醛酸制备饱和的ω-氨基酸的方法。 根据本发明，将起始的醛酸转化成相应的亚氨基酸，并在单一阶段和在氢化催化剂的存在下进行亚氨基功能和烯属双键或双键的氢化。 催化剂是周期性体系VIII族前两个亚组之一的过渡金属，即 选自Fe，Ru，Os，Co，Rh和Ir，并且以金属状态或化合物使用。