公开(公告)号：US4917848A

公开(公告)日：1990-04-17

申请号：US295524

申请日：1989-01-10

申请人： Kazuo Kurita ,  Youichi Watanabe ,  Susumu Tate

发明人： Kazuo Kurita ,  Youichi Watanabe ,  Susumu Tate

IPC分类号： C08G63/80 ,  D01F6/62 ,  D01F11/08 ,  D02J1/22

CPC分类号： C08G63/80 ,  D01F11/08 ,  D01F6/62

摘要： Process for producing polyester fibers of high tenacity and high modulus, by melt-spinning a polyester having an intrinsic viscosity of not lower than 0.3, to obtain extruded filaments of low orientation having a birefringence not higher than 10.0.times.10.sup.-3, post-polymerizing the filaments in a heating medium, and subjecting the filaments to multi-stage drawing in at least two stages.

摘要翻译： 通过对特性粘度不低于0.3的聚酯进行熔融纺丝来制造高强度和高模量的聚酯纤维的方法，以获得双折射率不高于10.0×10-3的低取向挤出长丝，后聚合 在加热介质中的长丝，并且使丝经历至少两个阶段的多级拉伸。

公开(公告)号：US4851508A

公开(公告)日：1989-07-25

申请号：US68213

申请日：1987-06-30

申请人： Kazuo Kurita ,  Masahiro Hayashi ,  Toshihiko Ohta ,  Hideaki Ishihara ,  Fujio Okada ,  Wataru Yoshikawa ,  Akira Chiba ,  Susumu Tate

发明人： Kazuo Kurita ,  Masahiro Hayashi ,  Toshihiko Ohta ,  Hideaki Ishihara ,  Fujio Okada ,  Wataru Yoshikawa ,  Akira Chiba ,  Susumu Tate

IPC分类号： D01F6/62 ,  D02J1/22

CPC分类号： D01F6/62 ,  D02J1/22

摘要： Polyester fibers having both a high strength and a high modulus prepared from ethylene terephthalate polyester, and having an intrinsic viscosity of not less than 1.0 and an initial tensile modulus is not less than 130 g/d, said intrinsic viscosity being determined in a mixed solvent of p-chlorophenol and tetrachloro ethane (3:1) at 30.degree. C. Processes for producing the fibers are also disclosed.

摘要翻译： 具有由对苯二甲酸乙二醇酯聚酯制得的高强度和高模量且特性粘度不低于1.0且初始拉伸模量的聚酯纤维不低于130g / d，所述特性粘度在混合溶剂中测定 的对氯苯酚和四氯乙烷（3:1）。制备纤维的方法也被公开。

公开(公告)号：US4923662A

公开(公告)日：1990-05-08

申请号：US287082

申请日：1988-12-21

申请人： Kazuo Kurita ,  Yoshihiko Teramoto

发明人： Kazuo Kurita ,  Yoshihiko Teramoto

IPC分类号： D01D5/12 ,  D01D5/088 ,  D01D5/16 ,  D01F6/62 ,  D02J1/22

CPC分类号： D01F6/62 ,  D01D5/0885 ,  D01D5/16

摘要： A process for producing polyester fibers having excellent tensile properties, particularly suitable as reinforcement material for tires, belts, etc., involves melt-spinning an ethylene terephthalate polyester to form highly oriented low crystalline polyester filaments which, at the state of being taken-up and prior to being drawn, having birefringence (.DELTA.n) and specific gravity (SG) within the below indicated ranges (a) and (b), and then, without winding-up, subjecting the said filaments immediately to drawing and heat treatment between the first godet rolls and second godet rolls under a draw ratio (DR) defined by the following formulas:.DELTA.n.gtoreq.5SG-6.64 (a).DELTA.n.gtoreq.0.100 (b)2.0.gtoreq.DR>1.0 (c)

摘要翻译： 特别适用于轮胎，带等的增强材料的具有优异拉伸性能的聚酯纤维的制造方法包括将对苯二甲酸乙二醇酯聚酯熔融纺丝以形成高取向的低结晶聚酯长丝，其在被卷取的状态 并且在拉伸之前，在以下的范围（a）和（b）中具有双折射（DELTA n）和比重（SG）），然后在没有卷绕的情况下，立即对所述细丝进行拉伸和热处理 在由下式定义的拉伸比（DR）下的第一导丝辊辊和第二导丝辊：DELTA n> / = 5SG-6.64（a）Δ= 0.100（b）2.0> / = DR> 1.0（c ）

公开(公告)号：US4701377A

公开(公告)日：1987-10-20

申请号：US831376

申请日：1986-02-20

申请人： Kazuo Kurita ,  Hideaki Ishihara

发明人： Kazuo Kurita ,  Hideaki Ishihara

IPC分类号： D01F6/60 ,  D01F6/90 ,  D02J1/22 ,  D02G3/00

CPC分类号： D01F6/60 ,  Y10T428/2913

摘要： A polyamide fiber excellent in strength, which comprises at least one of polycapramide, polyhexamethylene adipamide and polytetramethylene adipamide in an amount of not less than 60% by weight on the basis of the polyamide fiber and which is characterized by having a relative viscosity of not less than 2.3 and less than 3.5 (measured on a 96% by weight sulfuric acid solution having a polyamide concentration of 10 mg/ml at 20.degree. C.), an index of birefringence (.DELTA.n) (measured after 24 hours under the conditions of 30.degree. C. and 80% relative humidity) of not less than 55.times.10.sup.-3 and a tenacity of not less than 12.0 g/d, the index of birefringence in section satisfying the following relationship:.DELTA.n.sub.A -.DELTA.n.sub.B .gtoreq.0(wherein .DELTA.n.sub.A is the index of birefringence of fiber at the position of r/R=0.9, .DELTA.n.sub.B is the index of birefringence of fiber at the position of r/R=0.0, R is the radius of the fiber section and r is the distance from the central axis of the fiber section) and the tenacity and the break elongation satisfying the following relationship: ##EQU1##

摘要翻译： 聚酰胺纤维强度优异，该聚酰胺纤维包含基于聚酰胺纤维的不小于60重量％的聚己内酰胺，聚己二酰己二胺和聚四亚甲基己二酰胺中的至少一种，其特征在于相对粘度不低于 小于3.5（在20℃，聚酰胺浓度为10mg / ml的96重量％硫酸溶液中测量），双折射指数（DELTA n）（在24小时的条件下测量） 30℃和80％相对湿度）不低于55×10 -3，强度不小于12.0g / d，双折射指数满足以下关系：DELTA nA-DELTA nB> / = 0（ 其中DELTA nA是在r / R = 0.9的位置处的纤维的双折射指数，DELTA nB是在r / R = 0.0的位置处的纤维的双折射指数，R是纤维部分的半径，r是 与纤维部分的中心轴的距离）和 韧性和断裂伸长率满足以下关系：

公开(公告)号：US4624816A

公开(公告)日：1986-11-25

申请号：US615619

申请日：1984-05-31

申请人： Kazuo Kurita ,  Hideaki Ishihara

发明人： Kazuo Kurita ,  Hideaki Ishihara

IPC分类号： D01D5/16 ,  D01F6/60 ,  D01D5/12

CPC分类号： D01F6/60 ,  D01D5/16 ,  Y10S260/23 ,  Y10T428/2913

摘要： A process for the manufacture of polyamide fibers including melt spinning a polyamide having a relative viscosity of not less than 3.50 under conditions satisfying the following relationships:Q/D.sup.3 .ltoreq.982 g/sec.cm.sup.3D.sup.2.Vw/Q.ltoreq.12.8 cm.sup.3 /gT.sub.20 .gtoreq.100.degree. C..DELTA.n of unstretched filaments.ltoreq.0.017The resultant filaments are then subjected to cooling, stretching and heat treatment resulting in fibers with a break strength of not less than 11.0 g/d, a break strength.times.(break elongation(%))1/2 of not less than 46.0 and a monofilament denier of not more than 60 d.

公开(公告)号：US5379306A

公开(公告)日：1995-01-03

申请号：US935936

申请日：1992-08-27

申请人： Nobuhiko Noma ,  Mikio Mizutani ,  Tsukasa Sakai ,  Kazuo Kurita ,  Osamu Noguchi ,  Hiroyuki Nemoto ,  Keiichi Tomita

发明人： Nobuhiko Noma ,  Mikio Mizutani ,  Tsukasa Sakai ,  Kazuo Kurita ,  Osamu Noguchi ,  Hiroyuki Nemoto ,  Keiichi Tomita

IPC分类号： H04N1/41 ,  H03M13/23 ,  H03M13/41 ,  G06F11/00

CPC分类号： H03M13/3961 ,  H03M13/41 ,  H03M13/4169

摘要： A Viterbi decoding method, in which consecutive input data bits Q.sub.6n .about.Q.sub.1n are first converted into consecutive code bits Q.sub.6n .about.Q.sub.3n Y.sub.2n Y.sub.1n Y.sub.0n at a time instant n by use of a Trellis encoder. Then, a branch metric, which is a minimum Euclidean distance between a reception signal point and each of signal points (namely, Trellis codes Q.sub.6 .about.Q.sub.3 Y.sub.2 Y.sub.1 Y.sub.0) in a signal space diagram, corresponding to each of eight states 0 to 7 and a corresponding signal point are obtained. Further, a sum of the branch metric corresponding to each state and a corresponding path metric at a time instant (n-1), which is a sum of corresponding branch metrics since a time instant 1 to the time instant (n-1) is calculated. Then, the path metric corresponding to each state is updated by replacing it with the calculated sum of the corresponding branch metric and the corresponding path metric obtained at the time instant (n-1). Subsequently, a minimum one of the path metrics is determined as the latest part of a surviving path. Moreover, the surviving path is traced back to a signal point Q.sub.61 .about.Q.sub.31 Y.sub.21 Y.sub.11 Y.sub.01 at the time instant 1. Thus input data bits Q.sub.61 .about.Q.sub.31 Q.sub.21 Q.sub.11 at the time instant 1 is restored. In case of this method, the signal points are classified according to three bits Y.sub.21 Y.sub.11 Y.sub.01 into eight groups. Further, one of the groups is determined as a reference group. Furthermore, tables representing the signal points of the other groups are calculated from a table representing the signal points of the reference group.

摘要翻译： 维特比解码方法，其中连续输入数据位Q6n DIFFERENCE Q1n首先通过使用网格编码器在时刻n被转换为连续的码位Q6n DIFFERENCE Q3nY2nY1nY0n。 然后，分支量度是信号空间图中的接收信号点与信号点之间的每个信号点（即，格子码Q6 DIFFERENCE Q3Y2Y1Y0）之间的最小欧几里德距离，对应于八个状态0至7中的每一个以及相应的信号 得到。 此外，从时刻1到时刻（n-1）之后的对应分支度量的和的时刻（n-1），对应于每个状态的分支度量和对应的路径度量的和是 计算。 然后，通过用计算出的相应分支量度的和和在时刻（n-1）获得的对应的路径度量来替换与每个状态对应的路径量度。 随后，将路径度量中的至少一个确定为幸存路径的最新部分。 此外，在时刻1追踪存活路径到信号点Q61差分Q31Y21Y11Y01。因此恢复在时刻1的输入数据位Q61差分Q31Q21Q11。 在这种方法的情况下，信号点根据三位Y21Y11Y01分为八组。 此外，其中一个组被确定为参考组。 此外，表示其他组的信号点的表由表示参考组的信号点的表计算。

公开(公告)号：US4859389A

公开(公告)日：1989-08-22

申请号：US79162

申请日：1987-07-29

申请人： Kazuo Kurita ,  Hideaki Ishihara

发明人： Kazuo Kurita ,  Hideaki Ishihara

IPC分类号： D01F6/60 ,  D01F6/90 ,  D02J1/22

CPC分类号： D01F6/60 ,  Y10T428/2913

摘要： A polyamide fiber excellent in strength, which comprises at least one of polycapramide, polyhexamethylene adipamide and polytetramethylene adipamide in an amount of not less than 60% by weight on the basis of the polyamide fiber and which is characterized by having a relative viscosity of not less than 2.3 and less than 3.5 (measured on a 96% by weight sulfuric acid solution having a polyamide concentration of 10 mg/ml at 20.degree. C.), an index of birefringence (.DELTA.n) (measured after 24 hours under the conditions of 30.degree. C. and 80% relative humidity) of not less than 55.times.10.sup.-3 and a tenacity of not less than 12.0 g/d. The method of preparing the noted polyamide fibers includes spinning of the polyamide to produce filaments, cooling the filaments, taking up the filaments to make an index of birefringence of 13.times.10.sup.-3 or less and drawing the filaments so taken up. The drawing includes transferring the filaments onto a first supply roller and then a second supply roller with the application of a pre-draft of less than 20% between the first and second supply rollers, transferring the resultant pre-drafted filaments onto a first draw roller and thereafter onto a second draw roller. Between the draw rollers a heating zone is maintained with a temperature gradient from low to high. The first draw roller is kept at a temperature of not lower than 100.degree. C. and the second draw roller is kept at a temperature of not lower than 200.degree. C. Also, super-heated steam from a jet nozzle at a temperature of not lower than 200.degree. C. is applied to the filaments transferred onto the first draw roller.

摘要翻译： 聚酰胺纤维强度优异，该聚酰胺纤维包含基于聚酰胺纤维的不小于60重量％的聚己内酰胺，聚己二酰己二胺和聚四亚甲基己二酰胺中的至少一种，其特征在于相对粘度不低于 小于3.5（在20℃，聚酰胺浓度为10mg / ml的96重量％硫酸溶液中测量），双折射指数（DELTA n）（在24小时的条件下测量） 30℃和80％相对湿度）不低于55×10 -3，强度不小于12.0g / d。 制备所述聚酰胺纤维的方法包括纺丝聚酰胺以生产细丝，冷却长丝，卷起长丝以使双折射指数为13×10 -3或更小，并拉丝长丝。 该图包括将长丝转移到第一供给辊上，然后在第一和第二供应辊之间施加小于20％的预通量，然后将第二供给辊转移到第一供给辊上，将得到的预抽丝长丝转移到第一牵引辊 之后到第二牵引辊。 在牵引辊之间，加热区保持从低到高的温度梯度。 第一牵引辊保持在不低于100℃的温度，第二牵引辊保持在不低于200℃的温度。而且，在不是温度的情况下，来自喷嘴的超热蒸汽 对转移到第一拉伸辊上的长丝施加低于200℃。

公开(公告)号：US5587798A

公开(公告)日：1996-12-24

申请号：US556571

申请日：1995-11-13

申请人： Kazuo Kurita ,  Mikio Mizutani ,  Nobuhiko Noma ,  Tsukasa Sakai ,  Osamu Noguchi ,  Hiroyuki Nemoto ,  Keiichi Tomita

发明人： Kazuo Kurita ,  Mikio Mizutani ,  Nobuhiko Noma ,  Tsukasa Sakai ,  Osamu Noguchi ,  Hiroyuki Nemoto ,  Keiichi Tomita

IPC分类号： H03M7/46 ,  G06T9/00 ,  H04N1/417 ,  H04N1/419 ,  H04N1/32

CPC分类号： G06T9/005 ,  H04N1/419

摘要： An encoding (or decoding) method, by which raw data of 1 line is converted into, for example, modified Huffman (MH) code (or MH code is converted into raw data) by obtaining a cumulative run-length code every transition point, at which there occurs a transition or change between a run of white pixels to another contiguous run of black pixels, from the beginning of the line and then converting the cumulative run-length code to the MH code (or converting the MH code to the cumulative run-length code). The cumulative run-length code is defined by both of data, which indicates that a pixel of a run just prior to the transition point is black or white, and data representing a cumulative run-length of the run up to the pixel thereof just prior to the transition point. Thus, an encoding or decoding processing can be performed at a high speed.

摘要翻译： 通过每转换点获得累积游程长度码，将1行的原始数据通过其转换为例如修改的霍夫曼（MH）码（或MH码被转换为原始数据）的编码（或解码） 在该处开始，从行的开始处发生白色像素与另一连续黑色像素的运行之间的转变或变化，然后将累积游程长度代码转换为MH代码（或将MH代码转换为累积的 游程长度代码）。 累积游程长度代码由两个数据定义，这两个数据表示恰好在转换点之前的运行像素是黑色或白色，以及表示直到其前一个像素的运行的累积运行长度的数据 到过渡点。 因此，可以高速执行编码或解码处理。

公开(公告)号：US4504545A

公开(公告)日：1985-03-12

申请号：US415773

申请日：1982-09-08

申请人： Kazuo Kurita ,  Hideaki Ishihara

发明人： Kazuo Kurita ,  Hideaki Ishihara

IPC分类号： D01D5/16 ,  D01F6/60 ,  D02G3/00

CPC分类号： D01F6/60 ,  D01D5/16 ,  Y10S260/23 ,  Y10T428/2913

摘要： A polyamide fiber excellent in strength, which is characterized by being made of a polyamide having a relative viscosity of not less than 3.5 (measured on a 96% by weight sulfuric acid solution having a polyamide concentration of 10 mg/ml at 20.degree. C.), showing an index of birefringence (.DELTA.n) of not less than 50.times.10.sup.-3 and having the following relationship between the break strength and the break elongation:Break strength (g/d).times.(Break elongation (%)).sup.1/2 .gtoreq.46.0, the index of birefringence in the section of fiber satisfying the following relationship:.DELTA.n.sub.A -.DELTA.n.sub.B .gtoreq.0.5.times.10.sup.-3(wherein .DELTA.n.sub.A is the index of birefringence of fiber at the position of r/R=0.9, .DELTA.n.sub.B is the index of birefringence of fiber at the position of r/R=0.0, R is the radius of the section of fiber and r is the distance from the central axis of the section of fiber).

摘要翻译： 聚酰胺纤维强度优异，其特征在于由相对粘度不低于3.5的聚酰胺制成（在聚酰胺浓度为20mg / ml的96重量％硫酸溶液中测定） ），显示出不小于50×10 -3的双折射指数（DELTA n），断裂强度和断裂伸长率之间具有以下关系：断裂强度（g / d）×（断裂伸长率（％））1/2 > = = 46.0，满足以下关系的纤维截面中的双折射指数为：DELTA nA-DELTA nB> / = 0.5×10 -3（其中，ΔTATA是在r / R位置的纤维的双折射指数= 0.9，DELTA nB是在r / R = 0.0的位置处的纤维的双折射指数，R是纤维截面的半径，r是距纤维截面的中心轴的距离）。

公开(公告)号：US4496630A

公开(公告)日：1985-01-29

申请号：US464089

申请日：1983-02-04

申请人： Kazuo Kurita ,  Hideaki Ishihara

发明人： Kazuo Kurita ,  Hideaki Ishihara

IPC分类号： D01F6/00 ,  D01F6/60 ,  D02G3/00

CPC分类号： D01F6/60 ,  Y10S57/902 ,  Y10T428/2904 ,  Y10T428/2913 ,  Y10T428/2929

摘要： A polyamide fiber excellent in strength, which is characterized by having a relative viscosity of not less than 2.3 (measured on a 96% by weight sulfuric acid solution having a polyamide concentration of 10 mg/ml at 20.degree. C.), having an index of birefringence in section which satisfies the following relationship:.DELTA.n.sub.A -.DELTA.n.sub.B

摘要翻译： 聚酰胺纤维的强度优异，其特征在于相对粘度为2.3以上（在聚氨酯浓度为20mg / ml的96重量％硫酸溶液中，在20℃下测定），具有指数 的折射率满足以下关系：DELTA nA-DELTA nB <0（其中DELTA nA是在r / R = 0.9的位置的光纤的双折射指数，DELTA nB是纤维在位置处的双折射指数 的r / R = 0.0，R是纤维部分的半径，r是距离纤维部分的中心轴的距离），并显示以下物理常数：纤维双折射指数（DELTA n） 在30℃和80％相对湿度的条件下24小时）> / = 50×10 -3; 断裂强度> / = 11g / d; 光纤长周期间隔值通过小角度X射线衍射> / = 100 ANGSTROM; 比重> / = 1.140; 干热收缩率<15％。