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    • 43. 发明授权
    • Continuous process for thermal splitting of carbamic acid esters
    • 氨基甲酸酯热分解的连续工艺
    • US4692550A
    • 1987-09-08
    • US485347
    • 1983-04-15
    • Theodor EngbertGunter HammenHartmut KnofelKlaus Konig
    • Theodor EngbertGunter HammenHartmut KnofelKlaus Konig
    • C07C263/04C07C27/00C07C31/02C07C31/125C07C67/00C07C241/00C07C265/00C07C265/04C07C265/12C07C118/00
    • C07C263/04
    • N-monosubstituted carbamic acid esters are thermally split on a continuous basis in a tube reactor. The carbamic acid ester which is flowed down or passed over the inner wall of a tube reactor is thermally split at a temperature of from 150.degree. to 450.degree. C. and under a pressure of from 0.001 to 20 bar into at least two fractions. One fraction is predominantly isocyanate and a second fraction is predominantly hydroxyl compound. These fractions may be separated by removing one as a gaseous fraction formed under the splitting conditions from the head of the reactor and collecting the second fraction as a liquid which accumulates at the base of the reactor. If both fractions are gaseous under the splitting conditions, they are both removed from the head of the reactor and subsequently separated by fractionating columns for example. This process is particularly advantageous in that isocyanate and hydroxyl fractions are obtained in high yield without using a solvent.
    • N-单取代氨基甲酸酯在管式反应器中以连续的方式热分解。 流过或流过管式反应器内壁的氨基甲酸酯在150℃至450℃的温度和0.001至20巴的压力下热分解成至少两个馏分。 一个部分主要是异氰酸酯,第二部分主要是羟基化合物。 这些级分可以通过除去在分离条件下从反应器的头部形成的气态馏分来分离,并将第二馏分作为积聚在反应器底部的液体进行收集。 如果两个馏分在分解条件下都是气态的,则它们都从反应器的头部移出,并随后通过分馏塔例如分离。 该方法特别有利的是在不使用溶剂的情况下以高产率获得异氰酸酯和羟基部分。
    • 46. 发明授权
    • Solutions of oligo-urethane ethers in polyether polyols and their use in
a process for the production of polyurethane foams
    • 聚醚多元醇中的寡聚氨酯醚的溶液及其在生产聚氨酯泡沫体的方法中的应用
    • US4427798A
    • 1984-01-24
    • US356877
    • 1982-03-10
    • Klaus KonigGernot BeckerPeter Seifert
    • Klaus KonigGernot BeckerPeter Seifert
    • C08L71/00C08G18/00C08G18/10C08G18/38C08G18/48C08G18/50C08G18/66C08J3/12C08L71/02C09J5/00C09J5/08C08G18/14
    • C08G18/5045C08G18/10C08G18/3831C08G18/4804C08G18/6666
    • The invention relates to solutions of(A) from 3 to 60% by weight, based on the combined ether-polyol content, of separately prepared oligo-urethane ethers containing terminal OH.sup.- groups in the form of reaction products of(a) diisocyanates with(b) dialcohols having an average molecular weight of from 200 to 800, the stoichiometric ratio of (a) to (b) amounting to various values based on the average molecular weight of the dialcohols, in(B) polyether polyols containing at least 2 hydroxyl groups and having an average molecular weight of from 1000 to 12,000 and to their use in a proess for the production of polyurethane foams capable of being effectively flame-laminated and (high-frequency) welded without any adverse effect upon their other properties. The process for producing flame-laminatable and high-frequency-weldable flexible polyurethane foams is characterized by the reaction of(i) polyisocyanates with(ii) relatively high molecular weight compounds containing at least 2 hydroxyl groups,(iii) optionally other relatively high molecular weight and/or low molecular weight compounds containing isocyanate-reactive hydrogen atoms and water,(iv) optionally in the presence of other blowing agents, catalysts, foam stabilizers and other additives,such solutions described above being exclusively or partly used as the relatively high molecular weight compounds which contain hydroxyl groups.
    • 本发明涉及(A)基于所组合的醚 - 多元醇含量的(A)3至60重量%的分别制备的(a)二异氰酸酯与(a)二异氰酸酯的反应产物形式的末端OH-基团的低聚 - (b)平均分子量为200至800的二醇,(a)至(b)的化学计量比为基于二醇的平均分子量而计算的各种值,(B)含至少2个 羟基,其平均分子量为1000至12,000,并且用于生产能够有效地进行火焰层压和(高频)焊接的聚氨酯泡沫体,而对其它性能没有任何不利影响。 用于生产火焰层压和高频可焊性软质聚氨酯泡沫的方法的特征在于(i)多异氰酸酯与(ii)含有至少2个羟基的相对高分子量化合物的反应,(iii)任选其它相对高分子量 含有异氰酸酯反应性氢原子和水的重量和/或低分子量化合物,(iv)任选地在其它发泡剂,催化剂,泡沫稳定剂和其它添加剂的存在下,上述这样的溶液仅仅或​​部分用作相对高的 含有羟基的分子量化合物。
    • 50. 发明申请
    • Method and Device for Transporting a Flat Object
    • 用于传输扁平物体的方法和装置
    • US20090115127A1
    • 2009-05-07
    • US12202934
    • 2008-09-02
    • Klaus KonigMeinhard NattermannArmin Zimmermann
    • Klaus KonigMeinhard NattermannArmin Zimmermann
    • B65H5/02
    • B65H5/025B65H2301/321B65H2511/13B65H2511/224B65H2701/1916B65H2220/01B65H2220/02
    • A method and a device transport a flat object, especially a mail item, over a conveyor path. The transport device has two conveyor elements, a thickness sensor and a gap-altering device. With the aid of the thickness sensor the thickness of the object is measured, before the object reaches the conveyor path. With the aid of the gap-altering device the gap between the two conveyor elements is set to a computed value. The effect of this setting is that after the setting the gap is smaller than the measured thickness and the difference between the measured thickness and the gap is smaller than a predetermined limit. This setting is concluded before the subject matter reaches the conveyor path. The two conveyor elements clamp the object for a time between themselves and transport the clamped object over the conveyor path.
    • 一种方法和装置通过传送路径传送扁平物体,特别是邮件物品。 输送装置具有两个输送元件,厚度传感器和间隙改变装置。 借助于厚度传感器,在物体到达传送路径之前测量物体的厚度。 借助间隙改变装置,将两个输送机元件之间的间隙设定为计算值。 这种设置的效果是,在设定之后,间隙小于测量的厚度,并且测量的厚度和间隙之间的差小于预定极限。 此设置在主题到达传送路径之前得出结论。 两个输送机元件在物体之间夹住物体一段时间,并将被夹持的物体运送到输送机路径上。