Dyeing process and compositions for use therein
    7.
    发明授权
    Dyeing process and compositions for use therein 失效
    染色方法和用于其中的组合物

    公开(公告)号:US4139345A

    公开(公告)日:1979-02-13

    申请号:US716286

    申请日:1976-08-20

    CPC classification number: D06P3/8223 C09B62/04 D06P3/66 D06P3/8252

    Abstract: A process for the coloration of a hydroxy substituted organic polymeric substrate by heating it to at least 93.degree. C. with a water-soluble dyestuff containing one or more groups of the formula: ##STR1## WHERE M is a metal N IS 0 OR 1Q is 0 or 1M is 0, 1 or 2R = 1 or 2T = 0 or 1And r+t is not greater than 2 and when n = 1, m+t+r+q is not greater than 3, in the presence of a carbodiimide and a salt or a volatile amine.This process is valuable for coloring, in particular, cellulose textiles. It permits the use of dyestuffs in the form of metal, especially sodium salts, thereby avoiding the necessity of having dyes as free acid or ammonium salts which related known processes require.

    Abstract translation: 通过用含有一个或多个下式的基团的水溶性染料将其加热至至少93℃来对羟基取代的有机聚合物基底进行着色的方法:其中M是金属N IS 0或1 Q IS 0或1 M IS 0,1或2 R = 1或2 T = 0或1,R + T不大于2,当N = 1时,M + T + R + Q不大于3, 在碳酸氢盐和盐或挥发性胺存在下。

    Wall-driven oval ring transducer
    10.
    发明授权
    Wall-driven oval ring transducer 失效
    壁式椭圆环传感器

    公开(公告)号:US4435794A

    公开(公告)日:1984-03-06

    申请号:US280749

    申请日:1981-07-06

    CPC classification number: B06B1/0655

    Abstract: This invention is a small light weight underwater transducer that operates at low frequencies. The foregoing is accomplished by embedding piezoelectric material in the wall of an oval shell between the shell's nodal points. When an alternating voltage is applied to the piezoelectric material, the piezoelectric material expands and contracts causing large circumferential strains in the shell of the transducer. The aforementioned strains cause the shell to vibrate and energy to be radiated into the water. This invention may also be used as a receiving type of transducer.

    Abstract translation: 本发明是一种在低频下工作的小型轻量级水下换能器。 前述是通过将壳体的节点之间的压电材料嵌入椭圆形壳体的壁中来实现的。 当对压电材料施加交流电压时,压电材料在换能器的外壳中膨胀和收缩,导致大的周向应变。 上述菌株使壳体振动并且能量被辐射到水中。 本发明也可以用作接收型换能器。

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