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: Organosilicon-disulfanes are prepared by decomposing organosilicon thiocyanates with an alkali metal alcoholate.

Abstract: This invention relates to a process for reducing the sulfane chain length of bis(silylorganyl)polysulfanes, in which these compounds are reacted with an anhydrous sulfide and a haloalkylsilane compound.

Abstract: Aqueous emulsions are disclosed containing organosilicon compounds for the impregnation of inorganic materials, in particular building materials, containing alkoxysilanes and silane surfactants. The aqueous emulsions are storage stable and are adjusted to pH of from 3 to 5.5 just prior to use.

Abstract: Aqueous emulsions are disclosed containing organosilicon compounds for the impregnation of inorganic materials, in particular building materials, containing alkoxysilanes and silane surfactants. The emulsions comprise 1-80% by weight of one alkoxy silane, ##STR1## X.dbd.H,cl,Br, I, NH.sub.2, SCN, CN, N.sub.3, NHR, NR, NR.sub.3, --S.sub.x --, aryl or alkenyla.dbd.0 or 1b.dbd.

Abstract: Mixtures of sulfurous triazine compounds and methods of preparing these compounds with the general formula ##STR1## in which R.sup.1, R.sup.2 =H,R.sup.2 =benzyl,R.sup.2, R.sup.3, R.sup.4 =C.sub.1 -C.sub.8 -alkyl, allyl, C.sub.3 -C.sub.8 cycloalkyl, the latter unsubstituted or substituted with 1-3 methyl groups, 2-hydroxyethyl, 3-hydroxypropyl, 2-hydroxypropyl orR.sup.3 and R.sup.4 (together): C.sub.4 -C.sub.6 -alkylene, --(CH.sub.2 --CHX).sub.2 Y withX=H, CH.sub.3, Y=O,S,S.sub.a : Polysulfide chain with 2-10 S atoms (i.e. 2.ltoreq.a.ltoreq.10), in which the individual polysulfides are present in such concentrations that the statistical average value of "a" is a whole or fractional numerical value in the range from 2 to 5., characterized in that a triazine compound of the general formula ##STR2## in which R.sup.1, R.sup.2, R.sup.3, R.sup.

Abstract: The invention is directed to a method of preparing sulfenic acid chlorides and sulfenic acid esters with hydrolyzable silyl groups in which an oligosulfane containing silyl groups is chlorinated, the sulfenic acid chloride produced is separated and converted by reaction with an alkali alcoholate to the corresponding sulfenic acid ester.

Abstract: The invention is directed to N-silylpropyl-N'-acyl ureas and their production from an alkali cyanate, a 3-halopropylsilane and in a given case, a cyclic acidamide. By heating the compounds of the invention the blocked isocyanate function can be set free.

Abstract: The invention is directed to N,N' and N,N',N'-substituted silylureas and a process for their production in which in a single step process there are reacted a halogenoalkylsilane or a halogenbenzylsilane with a primary or secondary amine and an alkali cyanate in equimolar amounts.

Abstract: A method for the preparation of 3-chloropropyltrichlorosilane is carried out by conversion of trichlorosilane with allylchloride in the presence of a platinum containing polymeric organosiloxane-ammonium compound containing units represented by the structural formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 represent a group of the formula:R.sup.5 --SiO.sub.3/2 (2)wherein R.sup.5 denotes an alkylene group and the free valences of the oxygen atoms are saturated by silicon atoms of further groups of the formula (2), optionally with incorporation of crosslinking agents, R.sup.4 has the same meaning as R.sup.1, R.sup.2 and R.sup.3 or hydrogen, alkyl, cycloalkyl or benzyl, Y.sup.x- represents PtX.sub.4.sup.2- or PtX.sub.6.sup.2- (X is Cl or Br) and can also be an inorganic 1 to 3 functional anion of a protonic acid which yields stable salts with amine bases or the hydroxy group, and x is a number from 1 to 3.

Abstract: The invention is directed to a process for the production of sulfur containing organosilicon compounds by reaction of an oligosulfide obtained in the reaction solution from a hydrogen sulfide an alkali metal and sulfur with a haloalkylsilane.

Abstract: An automatic control for an automotive-vehicle hydrostatic transmission in which the engine drives a variable-displacement hydrostatic (axial-piston) pump which is connected with the motor by hydraulic lines. The hydrostatic (axial-piston) motor can be connected to the wheels of the vehicle. The control circuit comprises a filling pump, a metering throttle, a reversing valve and an adjusting device. The metering throttle is provided in a bypass between the filling pump and the reversing valve and is connected to the line communicating with the control element. A further throttle is provided in this line and has a diameter/length ratio less than 1.

Abstract: There is provided a process for the production of sulfur containing organosilicon compounds of the formula (I) Z -- Alk -- S.sub.x -- Alk -- Z, where Z is the grouping: ##STR1## in which R.sup.1 is an alkyl group having 1 to 5 carbon atoms, a cycloalkyl group with 5 to 8 carbon atoms, the benzyl group, phenyl or phenyl substituted with at least one methyl, ethyl or chloro group, R.sup.2 is alkoxy of 1 to 4 carbon atoms, methoxyethoxy, cycloalkoxy with 5 to 8 carbon atoms, phenoxy or benzyloxy, R.sup.3 and R.sup.4 are alkyl of 1 to 3 carbon atoms or hydrogen, Alk is divalent saturated hydrocarbon group having 1 to 5 carbon atoms or such a group interrupted by --O--, --S-- or --NH-- and x is a number from 2.0 to 6.

Abstract: There is provided a process for the production of sulfur containing organosilicon compounds of the formula (I) Z--Alk--S.sub.x --Alk--Z, where Z is the grouping: ##STR1## in which R.sup.1 is an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group with 5 to 8 carbon atoms, the benzyl group, phenyl or phenyl substituted with at least one methyl, ethyl or chloro group and R.sup.2 is alkoxy of 1 to 8 carbon atoms, methoxyethoxy, cycloalkoxy with 5 to 8 carbon atoms, phenoxy or benzyloxy, Alk is divalent saturated hydrocarbon group having 1 to 10 carbon atoms or such a group interrupted once or twice by --O--, --S-- or --NH-- and x is a number from 2.0 to 6.0 comprising reacting a compound of the formula (II) Y--Alk--Hal, where Y is: ##STR2## WHERE Hal is fluorine, chlorine, bromine or iodine with at least one compound of the formula R.sup.3 OH in which R.sup.

Abstract: Compounds are prepared having the formulaZ--Alk--S.sub.x --Alk Z Iwherein Z is ##STR1## where R.sup.1 is an alkyl group of 1 to 4 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms or phenyl,R.sup.2 is an alkoxy group of 1 to 8 carbon atoms, a cycloalkoxy group of 5 to 8 carbon atoms or phenoxy,Alk is a divalent hydrocarbon chain of 1 to 10 carbon atoms which can be interrupted with one or two --O--, --S-- or --NH group, andX is a number of 2 to 6 by reacting a compound having the formulaIi. z--alk--SH with sulfur. Some of the compounds are novel and some are old, e.g., in Meyer-Simon U.S. Pat. No. 3,842,111. The compounds are useful as bonding agents in sulfur vulcanizable rubbers.

Abstract: Sulfur containing organosilicon compounds are prepared having the formula:Z -- Alk -- S.sub.n -- Alk -- Zin which Z is: ##EQU1## where R.sub.1 and R.sub.alkyl of 1 to 4 carbon atoms or phenyl andR.sub.2 is alkoxy of 1 to 8 carbon atoms, cycloalkoxy of 5 to 8 carbon atoms or alkylmercapto of 1 to 8 carbon atoms, alk is a divalent aliphatic hydrocarbon or unsaturated aliphatic hydrocarbon or a cyclic hydrocarbon containing 1 to 18 carbon atoms and n is a whole number from 2 to 6.