Abstract:
The invention is directed to organosilicon compounds of the general formula prepared by reacting triazine compounds with functional groups (e.g., chlorine) and corresponding compounds (e.g., mercapto). The organosilicon compounds can be used in rubber mixtures.
Abstract:
Organosilicon compounds of general formula (I) R1R2R3Si—R4—S—Zn—S—R4—SiR1R2R3 (I) wherein R1, R2, R independently, represent H, a halogen, alkyl or alkoxy and R4 represents an alkylidene group, their preparation and their use in rubber mixtures.
Abstract:
A process is disclosed for the preparation of anhydrous sodium sulfide by heating sodium sulfide having a water content of from 38 to 40% in a contact drier in vacuo, the temperature of the solid to be dried being increased from approximately 20° C. at the solid inlet to ≧180° C. at the solid outlet.
Abstract:
A process for the preparation of mixtures of organosilicon disulfanes with a high disulfane content includes first reacting finely divided sodium and sulfur in an organic solvent, and then reacting the resulting Na2Sx, product further with a halogenoalkylalkoxysilane to give the desired product.
Abstract translation:制备具有高二硫化物含量的有机硅二烷的混合物的方法包括首先使有机溶剂中的细分的钠和硫反应,然后使所得的Na 2 S x,产物进一步与卤代烷基烷氧基硅烷反应,得到所需产物。
Abstract:
The invention relates to core-shell particles, the shell of which includes aggregated, hydrophobicized silicon dioxide particles, and the core of which includes a liquid phase, and in which the ratio of aggregated, hydrobicized silicon dioxide particles to the liquid phase, based on the total weight of the particles, is 2:98 to 40:60, where 60-100% by weight of glycerol is present in the liquid phase. The invention further encompasses the production of these core-shell particles and also their use for cosmetic purposes.
Abstract:
The invention relates to core-shell particles, the shell of which includes aggregated, hydrophobicized silicon dioxide particles, and the core of which includes a liquid phase, and in which the ratio of aggregated, hydrobicized silicon dioxide particles to the liquid phase, based on the total weight of the particles, is 2:98 to 40:60, where 60-100% by weight of glycerol is present in the liquid phase. The invention further encompasses the production of these core-shell particles and also their use for cosmetic purposes.
Abstract:
The invention relates to a process for the preparation of organosilylalkylpolysulfanes, of the general formula I (R1R2R3SiR4)2Sx (I) by reaction of organosilylalkylpolysulfanes of the general formula II (R1R2R3SiR4)2Sy (II) with an ionic sulfide of the general formula M+2S2− (III) and an organosilylalkyl halide of the general formula R1R2R3SiR4X (IV), the long-chain organosilylalkylpolysulfane of the general formula (II) and the organosilylalkyl halide of the general formula (IV) being initially introduced into the reaction vessel and the ionic sulfide of the general formula (III) being added to this solution in several portions.
Abstract translation:本发明涉及制备通式Ⅰ(R1R2R3SiR4)2Sx(Ⅰ)的有机甲硅烷基烷基聚硫烷的方法,通过使通式II(R1R2R3SiR4)2Sy(Ⅱ)的有机甲硅烷基烷基聚硫与通式M + 2SII(III)和通式为R 1 R 2 R 3 SiR 4 X(IV)的有机甲硅烷基烷基卤化物,通式(II)的长链有机甲硅烷基烷基聚 硫烷和通式(IV)的有机甲硅烷基烷基卤化物最初引入反应容器中, 将通式(III)的离子性硫化物分几部分加入到该溶液中。
Abstract:
Process for the production of polysulfide silane compounds of the general formula Z-R1-Sn-R1-Z (I) wherein silylalkyl halides of the formula ZR1X (II) are reacted with alkali metal polysulfides of the formula M2Sn, (III) wherein alkali metal polysulfides M2Sn are obtained by reacting alkali metal hydroxides of the general formula (IV) MOH (IV) and elemental sulfur in a non-aqueous solvent or without solvent.
Abstract:
Process for the preparation of sulfur- and phosphorus-containing compounds of the formula: [R1n(R2O)3−n—Si—Alk—S—]3P═S in which halogen-containing silanes of the formula R1n(R2O)3−n—Si—Alk—Hal are reacted with phosphorus pentasulfide (P4S10) and a metal sulfide.