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    • 7. 发明申请
    • Coating film having low refractive index and large water contact angle
    • 涂膜具有低折射率和大的接触角
    • US20070155897A1
    • 2007-07-05
    • US10583559
    • 2004-12-17
    • Yoshihiro TaniKenichi Motoyama
    • Yoshihiro TaniKenichi Motoyama
    • B05D3/02C08K3/22B60C1/00C08G77/06
    • C08G77/50C09D5/1675C09D183/14
    • To provide a process for forming an improved coating film on a substrate, particularly to provide a coating film formed on a substrate, as adhered to the surface of the substrate, having a refractive index of from 1.28 to 1.38 and a contact angle with water of from 90° to 115°. A coating film having a refractive index of from 1.28 to 1.38 and a contact angle with water of from 90° to 115°, which is formed as adhered to a substrate surface by forming a reaction mixture comprising a silicon compound (A) of the formula Si(OR)4, a silicon compound (B) of the formula (R1O)3SiCH2CH2(CF2)nCH2CH2Si(OR1)3, an alcohol (C) of the formula R2CH2OH, and oxalic acid (D), in a specific ratio; heating this reaction mixture at a temperature of from 50 to 180° C. in the absence of water, to form a solution of a polysiloxane; then applying a coating fluid comprising the polysiloxane solution on a substrate surface to form a coating; and heat-curing the coating at a temperature of from 80 to 450° C.; a method for forming such a coating film; and a process for producing such a coating fluid.
    • 为了提供一种在基材上形成改进的涂膜的方法,特别是提供一种形成在基材上的涂膜,粘合到基材表面上,折射率为1.28-1.38,与水的接触角为 从90°到115°。 1.一种涂膜,其折射率为1.28〜1.38,与水的接触角为90〜115°,通过形成含有式(I)的硅化合物(A) Si(OR)4 S,式(R 1 O 2)3 SiCH 2的硅化合物(B)3 (CH 2)2 CH 2(OR 2)2(CH 2)2 CH 2 3,将式R 2 CH 2 OH的醇(C)和草酸( D),具体比例; 在不存在水的情况下,在50〜180℃的温度下加热该反应混合物,形成聚硅氧烷溶液; 然后将包含所述聚硅氧烷溶液的涂布液涂布在基材表面上以形成涂层; 并在80至450℃的温度下热固化涂层; 形成这种涂膜的方法; 以及这种涂布液的制造方法。
    • 10. 发明授权
    • Process for producing aqueous solution of calcium nitrite
    • 亚硝酸钙水溶液的制备方法
    • US4208391A
    • 1980-06-17
    • US933582
    • 1978-08-14
    • Makoto EndoKohji Kusahara
    • Makoto EndoKohji Kusahara
    • C01B21/50B01D53/56C01F11/00C04B22/08C23F11/18C01B21/20
    • C23F11/181B01D53/56C01F11/00C04B22/085
    • An aqueous solution of calcium nitrite having high purity and high concentration is obtained by contacting a nitrogen oxides containing gas with an aqueous slurry of calcium hydroxide.It is necessary to use the aqueous slurry having high calcium hydroxide content such as 20 to 40 wt. %, whereby it is necessary to feed the gas having high nitrogen oxides concentration such as 5 to 10 vol. % to give high conversion to calcium nitrite. In order to prevent a formation of a by-product of calcium nitrate, a nitrogen oxides containing gas having 5 to 10 vol. % of a nitrogen oxides concentration and 1.2 to 1.5 of a molar ratio of NO/NO.sub.2 is fed as a first stage and then, the unabsorbed gas is oxidized and the resulting gas having 1 to 3 vol. % of a nitrogen oxides concentration and 1.2 to 1.5 of molar ratio of NO/NO.sub.2 is fed to the aqueous slurry having 3 to 10 wt. % of a calcium hydroxide obtained in the first stage so as to convert the residual calcium hydroxide to calcium nitrite without forming a by-product of calcium nitrate. The process is preferably carried out as continuous process having a first reaction zone and a second reaction zone.
    • 通过使含有氮氧化物的气体与氢氧化钙的水性浆液接触,可以获得高纯度和高浓度的亚硝酸钙水溶液。 需要使用氢氧化钙含量高的含水浆料,例如20〜40重量% %,因此有必要将具有高的氮氧化物浓度的气体例如5〜10体积份。 %以提供高亚硝酸钙转化率。 为了防止硝酸钙的副产物的形成,含有5〜10体积% 氮氧化物浓度的%和NO1 / NO2的摩尔比为1.2〜1.5作为第一阶段进料,然后,未吸收的气体被氧化,得到的气体具有1〜3体积% 将氮氧化物浓度的%和NO1 / NO2的摩尔比为1.2〜1.5进料到含有3〜10重量% 在第一阶段获得的氢氧化钙的百分比,以便将残留的氢氧化钙转化成亚硝酸钙而不形成硝酸钙的副产物。 该方法优选作为具有第一反应区和第二反应区的连续方法进行。