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    • 6. 发明申请
    • CONDENSATION PRODUCTS BASED ON AMINO-S-TRIAZINES AND THE USE OF THE SAID PRODUCTS
    • 依据氨基酸-S三嗪以及它们的使用缩合产物
    • WO1996030423A1
    • 1996-10-03
    • PCT/EP1996001403
    • 1996-03-29
    • SKW TROSTBERG AKTIENGESELLSCHAFTWEICHMANN, JosefSTADLER, AloisiaKERN, Alfred
    • SKW TROSTBERG AKTIENGESELLSCHAFT
    • C08G12/40
    • C04B24/223C04B2103/30C08G12/40
    • In the proposed condensation product based on amino-s -triazines with at least two amino groups, formaldehyde and sulphite, the molar ratio of amino-s-triazine, formaldehyde and sulphite is 1 : 2.5 - 6.0 : 1.51 - 2.0 and the formiate content is less than 0.3 wt %. The condensation product is obtained by a) heating amino-s-triazine, formaldehyde and a sulphite in the molar ratio 1 : 2.5 - 6.0 : 1.51 - 2.0 in an aqueous solution at a temperature of 60-90 DEG C and a pH level of between 9.0 and 13.0 until the sulphite can no longer be detected; b) continuing the condensation at a pH level of between 3.0 and 6.5 and a temperature of 60-80 DEG C until the condensation product has a viscosity of 5-50 mm/s at 80 DEG C; and c) adjusting the pH level of the condensation product to 7.5-12.0 or carrying out thermal secondary treatment at a pH level of >/= 10.0 and a temperature of 60-100 DEG C. The product can be used as an additive for inorganic binders such as cement.
    • 基于氨基-s-三嗪与至少两个氨基基团,甲醛和亚硫酸盐的缩合产物,氨基-s-三嗪与甲醛的摩尔比为亚硫酸盐1:2.5〜6.0,1.51〜2.0, 和甲酸含量小于0.3重量%。 其制备是加热一)氨基-s-三嗪,甲醛和的摩尔比1亚硫酸盐:在60℃至90℃,的温度下在水溶液中1.51〜2.0:2.5〜6.0 pH为9.0〜13.0,直至亚硫酸盐是不再可检测,b)然后将在pH 3.0和6.5和60至80℃的温度之间,缩合的 为只要直到在80℃下5至50毫米/秒,并具有C)然后缩合产物调节到7.5的pH值到12.0或热后处理在pH进行粘度的缩合产物 值> / = 10.0和60〜100℃的温度下 该产品适于作为无机粘合剂的添加剂,特别是水泥。
    • 9. 发明申请
    • PROCESS FOR FRACTIONATING VISCOUS SILICONES
    • 方法进行分馏硅胶VISCOSER
    • WO1998029474A1
    • 1998-07-09
    • PCT/EP1997007301
    • 1997-12-24
    • SKW TROSTBERG AKTIENGESELLSCHAFTHEIDLAS, JürgenVON SEYERL, Joachim
    • SKW TROSTBERG AKTIENGESELLSCHAFT
    • C08G77/36
    • C08G77/36
    • In order to fractionate viscous silicones, oily or polymer diorganosilicones with a chain length from 2 to 10.000 are continuously separated with condensed hydrocarbons such as ethane, propane and n- or i-butane or their mixtures into a head and a bottom product, preferably in an extraction column, at temperatures between 25 and 250 DEG C, pressures between 20 and 500 bars and a gas density > 160 kg/m . In order to avoid viscosity-caused problems, an organic solvent in the form of a C5-8-alkane or up to 85 % by weight of the condensed gas (mixture) can be added to the starting materials before the fractionation. This process enables high-grade viscous silicone fractions to be obtained, with a chain length from 200 to 10,000 and/or a viscosity from 100 to 500,000 mPas, as well as a total D4 to D20 oligomer content below 0.05 % by weight.
    • 对于具有链长2-10000状油或聚合物分馏viscoser硅Diorganosilicone与压缩烃如乙烷,丙烷和正 - 或异丁烷或它们的混合物,在25和250℃,20至500巴之间的压力和温度之间的其 的>160公斤/ m的气体密度<3>优选连续在萃取塔分离成顶部和底部产物。 为了规避粘度问题,它可以被添加到到分馏在C 5-8 - 烷的形式是有机溶剂,或至多85重量压缩气体(混合物)的%之前的起始原料。 与获得高品质的粘胶硅氧烷组分,其具有200至10,000和/或100至500000毫帕·秒,并且它们Gesamtoligomerengehalt D4到D20的粘度的链长度的方法是小于0.05重量%。