Abstract: Bicyclic guanidines are prepared by reacting dialkylenetriamines with dialkylcarbonates in the presence of a silane of the formula Si(ORx)oRy(4-o)??(IV) and/or their partial hydrolysates, with the proviso that contain minimally one unit Rx which is monovalent optionally substituted hydrocarbon radial with 3 to 10 carbon atoms.

Abstract: A process for preparing siloxanes wherein (a) at least one hydridosilicon compound selected from (a1) compounds of general formula (I), and/or from (a2) compounds of general formula (I?), and (b) at least one carbonyl compound selected from (b1) compounds of the general formula (II), and/or (b2) compounds of general formula (II?), and (c) at least one cationic compound of general formula (III) are brought into contact and reacted with one another.

Abstract: Polymeric alkyl silicates along with processes for preparing the same.

Abstract: Alkyl-silicates and alkyl-silicate-containing organosilicon compounds. The alkyl-silicate-containing organosilicon compound includes at least 90% by weight, preferably at least 95% by weight, of alkyl silicates of average formula (I) Where the radicals Rx are each independently selected from radicals that meet at least one of the following conditions: (a) where Rx is a substituted or unsubstituted, C4-C20 hydrocarbon radical that is branched at the ?-carbon atom, (b) where Rx is a substituted or unsubstituted, C5-C20 hydrocarbon radical that is doubly branched at the ?-carbon atom, and/or (c) where Rx is an unsubstituted or alkyl-substituted cyclopentyl, cyclohexyl or cycloheptyl radical having a total of not more than 9 carbon atoms. Where the radicals R3 are each independently selected from (i) hydrogen, (ii) methyl radical, and (iii) ethyl radical.

Abstract: A mixture M includes at least one compound A selected from (a1) a compound of the general formula (I): R1R2R3Si—H, and/or (a2) a compound of the general formula (I?): (SiO4/2)a(RxSiO3/2)b(HSiO3/2)b?(Rx2SiO2/2)c(RxHSiO2/2)c?(H2SiO2/2)c?(Rx3SiO1/2)d(HRx2SiO1/2)d?(H2RxSiO1/2)d?(H3SiO1/2)d??, and at least one compound B selected from (b1) a compound of the general formula (II): R4R5R6Si—O—R7, and/or (b2) a compound of the general formula (II?): Rx3Si—O[—SiRx2—O]m—[Si(OR73)Rx—O]n—SiRx3, and at least one compound C selected from the cationic germanium(II) compound of the general formula (III): ([Ge(II)Cp]+)aXa?.

Abstract: Aminopropylalkoxysilanes of the formula H2N—CR2R3—CHR1—CH2—SiR4R5(OR6)??I, are synthesized by hydrosilylating silazanes of the formulae and mixtures thereof, in the presence of a catalyst containing rhodium and/or iridium compounds, and then reacted with alcohol to form an aminopropylalkoxysilane.

Abstract: A mixture M includes at least one compound A, selected from (a1) a compound of the general formula (I) and/or (a2) a compound of the general formula (I?), at least one compound B, selected from (b1) a compound of the general formula (II) and/or (b2) a compound of the general formula (II?) and/or (b3) a compound of the general formula (II?), and at least one compound C, selected from cationic germanium(II) compounds of the general formula (III).

Abstract: Siloxanes are prepared by reacting: a compound A with a compound B or a compound A with a compound C or a compound B with a compound C or a compound C alone, in the presence of a compound D at ?40° C., wherein compound A is a silane or a siloxane having at least one silicon-bonded hydrogen atom, compound B is a silane or a siloxane having at least one silicon-bonded alkoxy moiety, compound C is a silane or a siloxane having at least one silicon-bonded hydrogen atom and at least one silicon-bonded alkoxy moiety, and compound D is a cationic Si(II) compound.

Abstract: The invention relates to a hydrosilylatable mixture M containing: (A) a compound with at least one hydrogen atom directly bonded to Si, (B) a compound containing at least one carbon-carbon multiple bond, and (C) a compound containing at least one cationic Si(II) group. The invention also relates to a method for hydrosilylating the mixture M.

Abstract: The invention provides a mixture M containing compound A which contains at least one hydrogen atom bound directly to Si, compound B which contains at least one carbon-carbon multiple bond, compound C which contains at least one cationic Si(II) group and compound D which contains at least one alkoxy group bound directly to silicon, and also a method for hydrosilylating the mixture M, wherein the mixture M is heated.

Abstract: The invention relates to a method for absorbing liquids (P) containing compounds (V) selected from water and alkanols, the oxygen content of which in weight percentage is at least 27%, said content being present in the loan of hydroxy groups or hydroxy and ether groups, into a solid silicone-containing polymer (P) which contains at least one siloxane unit of the general formula I (R1b(X)cSiO[4?(b+c)]/2) and no units or at least one unit of the general formula II (R2aSiO4?a)/2), in which R1, R2, x, a, b, and c have the meanings described in claim 1, wherein the liquids (P) are brought into contact with the solid silicone-containing polymer (P).

Abstract: Subject-matter of the invention is a hydrosilylatable mixture M comprising compound (C), which contains at least one carbocationic structure, and compound (A), which has at least one directly Si-bonded hydrogen atom and compound (B), which contains at least one carbon-carbon multiple bond, or compound (AB), where between the Si—H group and the nearest adjacent carbon atom of the carbon-carbon multiple bond there are at least 6 atoms, or compound (A) and compound (AB) or compound (B) and compound (AB), where the compounds (A), (B) and (AB) are defined in claim 1.

Abstract: The invention relates to a method for producing hydridosilanes, in which siloxanes containing Si—H groups are reacted in the presence of a cationic Si(II) compound as a catalyst.

Abstract: The invention relates to a method for producing cationic silicon (II) compounds of general formula I (RaSi)+HA???(I) by reacting the silicon (II) compounds of general formula II (Rb?H)(RaSi)+??(II) with a hydride acceptor compound A, wherein Ra, (Rb?H) and A have the definitions described in claim 1; to the cationic silicon (II) compounds of general formula I and use thereof as catalysts.

Abstract: The present invention relates to a method for producing amino acid group-containing organosilicon compounds (O), wherein the epoxy group-bearing organosilicon compounds are reacted with a stoichiometric excess of amino acids or the salts thereof in the presence of an alcohol.

Abstract: The object of the invention is therefore to provide a method for the preparation of amino-functional polyorganosiloxanes, in which (A) organosiloxanes containing Si—OH groups are reacted with (B) at least stoichiometric amounts of monoalkoxy(aminoalkyl) silanes with respect to the Si—OH groups, wherein catalytically active additives selected from acid, base or metal-organic compound are used in amounts of less than 0.1 ppm acid, less than 30 ppm base and less than 0.4% metal-organic compound.

Abstract: (Meth)acrylate-functionalized silicon compounds are easily prepared by the reaction of a (meth)acryloyl-functionalized chlorosilane with an organosilicon compound having silicon-bonded hydroxy groups. The carbon atom adjacent to the resulting O—Si linkage is bonded to at least one further carbon, rendering the product stable to hydrolysis despite the C—O—Si linkage.

Abstract: The invention relates to a method for producing amino-functional polyorganosiloxanes, wherein (A) organosiloxanes which contain Si—OH groups are reacted with (B) at least stoichiometric quantities of mono-alkoxy(amino-alkyl)silanes, with respect to the Si—OH groups, (C) in the presence of at least one acid as a catalyst.

Abstract: Aminoalkylalkoxysilanes are prepared from halo(haloalkyl)silanes in the simultaneous presence of ammonia or primary organic amine and alcohol.

Abstract: The invention relates to a method for producing amino-functional polyorganosiloxanes, wherein (A) organosiloxanes which contain Si—OH groups are reacted with (B) at least stoichiometric quantities of mono-alkoxy (amino-alkyl) silanes, with respect to the Si—OH groups, (C) in the presence of at least one acid as a catalyst.