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1. 发明授权

US4891420A Continuous process for the hydrolytic production of polycaprolactam by tempering unextracted granular polymer material with moist inert gas 失效
标题翻译：通过用潮湿惰性气体回火未提取的颗粒状聚合物材料来进行水解生产聚己内酰胺的连续方法
公开(公告)号：US4891420A
公开(公告)日：1990-01-02
申请号：US213776
申请日：1988-06-30
申请人： Wolfgang K. Martin , James R. Ryffel , Hans H. Schuster , Chih-Peng Wen
发明人： Wolfgang K. Martin , James R. Ryffel , Hans H. Schuster , Chih-Peng Wen
IPC分类号： C08G69/16 , C08G69/46 , C08J3/12
CPC分类号： C08J3/12 , C08G69/16 , C08G69/46 , C08J2377/02
摘要： A process for tempering unextracted polycaprolactam is disclosed which results in polycaprolactam having suitable physical and chemical properties for melt extrusion and spinning, without the need for conventional solvent/water extraction and drying of crude granules.
摘要翻译：公开了回收未提取的聚己内酰胺的方法，其导致聚己内酰胺具有用于熔体挤出和纺丝的合适的物理和化学性质，而不需要常规的溶剂/水提取和干燥粗颗粒。

2. 发明授权

US4173586A Process for cleavage of unsaturated multi-cyclic ketones 失效
标题翻译：裂解不饱和多环酮的方法
公开(公告)号：US4173586A
公开(公告)日：1979-11-06
申请号：US942845
申请日：1978-09-15
申请人： Larry W. Payne , Howard E. Miller , James R. Ryffel
发明人： Larry W. Payne , Howard E. Miller , James R. Ryffel
IPC分类号： C07C1/207 , C07C29/00 , C07C45/67 , C07C45/85 , C07C27/00 , C07C3/30
CPC分类号： C07C45/673 , C07C1/2076 , C07C29/00 , C07C45/85 , C07C2101/14 , C07C2101/16 , C07C2523/882 , C07C2523/883 , C07C2531/025
摘要： A process for cleavage of unsaturated multi-cyclic ketones involves thermal cracking of the liquid ketone at elevated temperatures in the absence of water to produce cyclohexanone and a variety of other cleavage products. Para-toluenesulfonic acid and transition metal oxides are advantageously employed as catalysts.
摘要翻译：用于裂解不饱和多环酮的方法包括在不存在水的情况下在升高的温度下液体酮的热裂解以产生环己酮和各种其它裂解产物。对甲苯磺酸和过渡金属氧化物有利地用作催化剂。

3. 发明授权

US4362682A Chip-free staple fiber process 失效
标题翻译：无芯片短纤维工艺
公开(公告)号：US4362682A
公开(公告)日：1982-12-07
申请号：US179583
申请日：1980-08-21
申请人： Gerald A. Berg , Hermann Buchert , Steve R. Duffy , Richard E. Harder , E. R. Higgs , Louis D. Hoblit , James R. Ryffel , Walter P. Smith , Edwin L. Stenzel
发明人： Gerald A. Berg , Hermann Buchert , Steve R. Duffy , Richard E. Harder , E. R. Higgs , Louis D. Hoblit , James R. Ryffel , Walter P. Smith , Edwin L. Stenzel
IPC分类号： D01C1/04 , D01D4/02 , D01D5/092 , D01F6/60 , D01G1/00 , D01D9/10
CPC分类号： D01D5/092 , D01F6/60
摘要： An equilibrium melt from a standard hydrolytic or anionic polymerization of caprolactam is spun at a temperature between about 230.degree. and 270.degree. C. through a spinnerette, preferably one having a multiplicity of holes spaced from each other in an asymmetric arrangement, the spinning take-away speed being less than about 250 meters/minute. The molten strands of polycaprolactam are quenched in two phases: (1) gas at a temperature of less than 20.degree. C. is directed from a first entrance in a crosscurrent flow upon the face of the spinnerette and upon the molten polycaprolactam strands immediately adjacent thereto, and is exhausted adjacent to the back of the spinnerette; and (2) gas at a temperature of less than 20.degree. C. is directed in a countercurrent flow from a second entrance downstream from the first entrance with respect to the direction of movement of the polycaprolactam strands; whereby the surface temperature of the polycaprolactam strands is reduced to 30.degree.-70.degree. C. A drawing and crimping lubricant and antistatic agent is then applied to the surface of the polycaprolactam strands, which are then drawn at a total draw ratio between 3 and 5. The polycaprolactam strands are then crimped and cut into staple lengths, which are subsequently washed in multiple stages, dried, and packaged for subsequent use or sale.
摘要翻译：来自己内酰胺的标准水解或阴离子聚合的平衡熔体在约230℃至270℃的温度下通过纺丝板纺丝，优选为具有以不对称布置彼此间隔开的多个孔的纺丝纱，远离速度小于约250米/分钟。聚己内酰胺的熔融线股分两个阶段骤冷：（1）温度低于20℃的气体以旋流流动的第一入口从喷丝板的表面和直接相邻的熔融聚己内酰胺链并且在喷丝板的背面附近被耗尽; 和（2）温度低于20℃的气体相对于聚己内酰胺束的运动方向以来自第一入口下游的第二入口的逆流流动; 从而将聚己内酰胺股线的表面温度降低至30°-70℃。然后将拉伸和卷曲润滑剂和抗静电剂施加到聚己内酰胺股线的表面上，然后以总拉伸比3至5 然后将聚己内酰胺股线卷曲并切割成短纤维，随后将其洗涤多个阶段，干燥并包装以备后续使用或销售。

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