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    • 1. 发明授权
    • Process of continuously producing polyesters or copolyesters
    • 连续生产聚酯或共聚酯的工艺
    • US07153927B2
    • 2006-12-26
    • US10451292
    • 2001-11-27
    • Fritz WilhelmMichael Reisen
    • Fritz WilhelmMichael Reisen
    • C08G63/00
    • B01D3/14C08G63/78
    • Process for producing polyesters and copolyesters, wherein a continuous esterification of dicarboxylic esters and diols or a continuous transesterification of dicarboxylic esters with diols is effected in “n” reaction pressure stages connected in series, the pressure in the first reaction pressure stage is higher than that of the remaining reaction pressure stages, and successively decreases from reaction pressure stage to succeeding reaction pressure stage, the combined vapor flows of the individual reaction pressure stages are rectified in a rectifying column, and the diol component obtained at the bottom of the rectifying column is recirculated at least to the first reaction pressure stage, and wherein at least the last reaction pressure stage operates at a vacuum, the pressure in the rectifying column is greater than that of the last reaction pressure stage, and the vapors discharged from the last reaction pressure stage are condensed to the pressure existing in the rectifying column.
    • 制备聚酯和共聚酯的方法,其中连续酯化二羧酸酯和二醇或二羧酸酯与二醇的连续酯交换在连续串联的“n”个反应压力阶段中进行,第一反应压力阶段的压力高于第 的剩余反应压力级,从反应压力阶段到后续反应压力阶段相继降低,各个反应压力级的组合蒸气流在精馏塔中精馏,精馏塔底部得到的二醇成分为 至少再循环到第一反应压力级,并且其中至少最后的反应压力级在真空下操作,精馏塔中的压力大于最后反应压力级的压力,并且从最后的反应压力排出的蒸气 阶段被压缩到整流库中存在的压力 嗯
    • 3. 发明授权
    • Process for producing cellulosic mouldings
    • 生产纤维素模制品的方法
    • US6106763A
    • 2000-08-22
    • US192772
    • 1998-11-16
    • Henryk StruszczykDariusz WawroPawel StarostkaWlodzimierz MikolajczykAlojzy Urbanowski
    • Henryk StruszczykDariusz WawroPawel StarostkaWlodzimierz MikolajczykAlojzy Urbanowski
    • A22C13/00C08B1/00D01F2/02B29C55/28D01F2/00
    • C08B1/003A22C13/0013D01F2/02
    • Process for producing cellulosic moldings such as fibers, foils, casings and beads from cellulose, wherein (a) the initial cellulose is hydrothermally treated with water in a water/cellulose ratio on a weight basis of at least 1 at a temperature in the range from about 100.degree. to about 200.degree. C. and under a pressure in the range from 0.1 to about 1.5 MPa; (b) the treated cellulose is dissolved in an aqueous solution of alkali hydroxide at a temperature of at least 0.degree. C. to form a homogenous cellulose solution containing from about 5% to about 10% by weight cellulose and at maximum 10% by weight alkali hydroxide, and (c) the alkaline cellulose solution is formed and coagulated by contacting it with an aqueous solution containing 1 to about 30% by weight of an acid. This fully ecological process avoids handling of toxic products or by-products and uses aqueous solvents instead of expensive organic solvents. The cellulose solution is stable for at least 48 hours.
    • 用于从纤维素生产纤维素模制品如纤维,箔,肠衣和珠粒的方法,其中(a)将初始纤维素在水/纤维素比中用水进行水热处理,重量基于至少1,温度范围为 约100至约200℃,压力范围为0.1至约1.5MPa; (b)将经处理的纤维素在至少0℃的温度下溶解在碱金属氢氧化物水溶液中以形成含有约5%至约10%重量的纤维素和最多10%重量的均匀纤维素溶液 碱性氢氧化物,和(c)通过使碱性纤维素溶液与含有1至约30重量%的酸的水溶液接触而形成和凝结。 这种完全生态的过程避免了处理有毒产品或副产物,并使用水性溶剂而不是昂贵的有机溶剂。 纤维素溶液稳定至少48小时。
    • 5. 发明授权
    • Device for suppressing bobbin vibrations in winding machines
    • 用于抑制绕线机中的线轴振动的装置
    • US3883082A
    • 1975-05-13
    • US41623473
    • 1973-11-15
    • ZIMMER AG
    • GRITSCHKE MARTINKRETSCHMANN BERND
    • B65H54/52
    • B65H54/52B65H2555/13B65H2601/524B65H2701/31
    • On a thread winding machine, a device for eliminating flutter or severe vibrations between a winding bobbin and a driving roll frictionally engaged with the bobbin, in which the bobbin and driving roll are mounted to move toward and away from each other as thread builds up on or moves off the bobbin. A pair of plates having flat surfaces in frictionally sliding contact with each other, one plate mounted rigidly on the frame of the machine and one on the moving part (bobbin or drive roll as the case may be) provides resistance to fluttering as the bobbin rotates against the drive roll. The contacting surfaces of the plates lie in a plane substantially perpendicular to the axis of the bobbin and drive roll. Means is provided to urge the plates together to increase the friction. In a preferred form one of the plates is the pole surfaces of a permanent magent and the cooperating plate is of magnetic metal.
    • 在线缠绕机上,用于消除缠绕线圈架和与绕线筒摩擦接合的驱动辊之间的颤动或严重振动的装置,其中绕线器和驱动辊安装成线路向上和向外移动,因为线缠绕在 或离开线轴。 一对具有彼此摩擦滑动接触的平坦表面的板,一个刚性地安装在机器框架上的板,一个在可移动部件(线轴或驱动辊上,视情况而定)上提供了当筒管旋转时抵抗振动的阻力 对着驱动辊。 板的接触表面位于基本上垂直于线轴和驱动辊的轴线的平面中。 提供了将板压在一起以增加摩擦力的装置。 在优选形式中,其中一个板是永久性金刚石的极表面,并且配合板是磁性金属。