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    • 4. 发明授权
    • Endless track rotating thread guide
    • 无尽轨道旋转导纱器
    • US4196601A
    • 1980-04-08
    • US869512
    • 1978-01-16
    • Antonius VinnemannHeinrich K. ElsasserManfred E. WalterWilli G. GasierWerner SommerWolfgang A. A. BrennerHermann Kress
    • Antonius VinnemannHeinrich K. ElsasserManfred E. WalterWilli G. GasierWerner SommerWolfgang A. A. BrennerHermann Kress
    • D04B9/14B65H51/18D03D47/34D04B7/14D04B15/38D04B15/56D04B3/06
    • D04B15/56B65H51/18D03D47/34B65H2701/31
    • Apparatus for feeding a plurality of yarn, sliver or fibrous materials to a textile machine, comprising: a plurality of stationary supply packages on which said materials are wound; a stationary endless track having at least a working and a return section; and a plurality of feeding elements. Every feeding element is associated with one of said supply packages, wherein said feeding elements are arranged to run around said track in series in such a manner, that the distances between the feeding elements and the associated ones of said supply packages become gradually and alternately smaller and larger during successive runs of said feeding elements on said track. Said materials are held by said feeding elements when the relevant feeding elements pass through said return section, and are releasable for processing by said textile machine when the relevant feeding elements pass through said working section. A plurality of automatically operating and stationary storage devices are arranged in the path between the said feeding elements and the associated supply packages for the intermediate storage of all quantities of the materials which may result from a reduction of the distance between a feeding element and the associated supply package, and for the delivery of said stored quantities, if said distances again become gradually larger.
    • 用于将多根纱线,条子或纤维材料供给到纺织机器的装置,包括:多个固定供应包装,所述材料在其上缠绕; 至少具有工作和返回部分的静止环形轨道; 和多个进给元件。 每个馈送元件与所述供应包装中的一个相关联,其中所述馈送元件布置成以这样的方式串联地围绕所述轨道延伸,使得馈送元件和相关联的所述供应包装之间的距离逐渐变化并且交替变小 并且在所述轨道上的所述馈送元件的连续运行期间较大。 当相关进料元件通过所述返回部分时,所述材料由所述进给元件保持,并且当相关进料元件通过所述工作部分时可释放以供所述纺织机加工。 多个自动操作和固定的存储设备被布置在所述馈送元件和相关联的供应包装之间的路径中,用于中间存储所有数量的材料,这可能由于馈送元件和相关联的馈送元件之间的距离的减小而导致 如果所述距离再次变得越来越大,则用于递送所述存储量。
    • 8. 发明授权
    • Diphosphonodicarboxylic acid esters
    • 二膦酸二羧酸酯
    • US4332746A
    • 1982-06-01
    • US172584
    • 1980-07-28
    • Horst-Dieter ThammVolker KnittelWerner SommerGerhard Weckler
    • Horst-Dieter ThammVolker KnittelWerner SommerGerhard Weckler
    • C08K5/00C04B24/00C07F9/38C07F9/40C08K5/53C08K5/5333C08L1/00C08L27/00C09K3/00C11D3/36
    • C08K5/5333C04B24/003C07F9/3869C07F9/4046
    • Novel phosphonocarboxylic acid compounds having the formula ##STR1## wherein the radicals R which may be identical or different and which represent alkyl radicals with 1-18 carbon atoms which may be optionally substituted by halogen, hydrogen, alkali metal ions or ammonium ions, are prepared by reacting methylene phosphonic acid alkyl esters with acrylic acid esters in the presence of strongly basic catalysts at temperatures of about 0.degree.-140.degree. C., and by possibly transesterifying the reaction products or by submitting the latter to acid or basic hydrolysis. The acid hydrolysis to yield the free, 3,3-diphosphono-pimelic acid is best carried out with at least the about 6-fold molar quantity of a carboxylic acid such as HCOOH, CH.sub.3 COOH, etc., optionally in the presence of catalytic quantities of strong acids or bases, at elevated temperatures.The compounds of formula (I), wherein the radicals R represent only alkyl radicals which may possibly be substituted by halogen, are valuable plasticizers for polyvinyl chloride, the compounds of formula (I), wherein R=H, alkali metal ions and/or ammonium ions, are valuable gypsum setting retardants and complex-forming agents for metal ions.
    • 具有式(I)的新型膦酰基羧酸化合物,其中可以相同或不同并且代表具有1-18个碳原子的烷基的基团R可以任选被卤素,氢,碱金属离子或铵离子取代 通过使亚甲基膦酸烷基酯与丙烯酸酯在强碱性催化剂存在下在约0-140℃的温度下反应制备,并且可能通过反应产物的酯交换反应或将其转化成酸或碱性水解 。 酸水解产生游离的3,3-二膦酰基庚二酸最好用至少约6倍摩尔量的羧酸如HCOOH,CH 3 COOH等进行,任选地在催化量存在下 的强酸或碱,在升高的温度。 式(I)化合物,其中基团R仅代表可能被卤素取代的烷基,是聚氯乙烯的有价值的增塑剂,式(I)化合物,其中R = H,碱金属离子和/或 铵离子是金属离子的有价值的石膏凝固阻滞剂和络合物形成剂。