Abstract: A method for producing organopolysiloxanes having unsaturated groups. Where the organopolysiloxanes produced include organopolysiloxanes (A), organopolysiloxanes (B), catalysts (D) and optionally organopolysiloxane compounds (C).

Abstract: Organopolysiloxanes having aminoalkyl groups are prepared by (i) reacting (A) linear, cyclic or branched organopolysiloxanes with (B) aminoalkylsilanes which have an SiC-bonded, basic nitrogen-containing hydrocarbon radical and 2 or 3 hydrolyzable groups, or the partial or complete hydrolysis products thereof, optionally in the presence of (C) basic catalysts and/or (D) chain-terminating reagents, and (ii) optionally, after the reaction (i) neutralizing the optionally used basic catalysts (c), with the proviso that compounds (A), (B) and, when used, (D) are reacted continuously in a reaction space whose ratio of length to diameter is equal to or greater than four.

Abstract: Organopolysiloxanes having aminoalkyl groups are prepared by (i) reacting (A) linear, cyclic or branched organopolysiloxanes with (B) aminoalkylsilanes which have an SiC-bonded, basic nitrogen-containing hydrocarbon radical and 2 or 3 hydrolyzable groups, ?or the partial or complete hydrolysis products thereof, optionally in the presence of (C) basic catalysts and/or (D) chain-terminating reagents, and (ii) optionally, after the reaction (i) neutralizing the optionally used basic catalysts (c), with the proviso that compounds (A), (B) and, when used, (D) are reacted continuously in a reaction space whose ratio of length to diameter is equal to or greater than four.

Abstract: A process for preparing amino-functional organopolysiloxanes comprising (i) mixing aminosilanes of the general formula RaQbSi(OR1)4?(a+b), where R and R1 are hydrogen or optionally substituted hydrocarbyl, a is 0, 1 or 2, b is 1, 2 or 3, and a+b is ?3, Q is —R5—[NR6(CH2)n]eN(R6)2, where R5 is a hydrocarbyl diradical and R6 is hydrogen, hydrocarbyl, or acyl, e is 0, 1, 2, 3 or 4, n is 2, 3, 4, 5 or 6, with organosilicon compounds selected from siloxanes comprising units R d ? ( O ? R 1 ) f ? SiO 4 - ( d + f ) 2 ? ? and ? ? R c ? SiO 4 - c 2 or silanes RcSi(OR1)4?c, where c is 0, 1, 2 or 3, d is 0, 1 or 2, f is 1, 2 or 3, with the proviso that d+f is ?3, basic catalysts selected from alkali metal hydroxides, alcoholates and siloxanolates, and optionally, alcohols H—[O(CHR2)p]mOR3, where R2 and R3 are hydrogen or hydrocarbyl, p is 2, 3 or 4, and m is 0 or an integer from 1 to 100, (ii) reacting by heating to 70–100° C.

Abstract: A process for preparing amino-functional organopolysiloxanes comprising (i) mixing aminosilanes of the general formula RaQbSi(OR1)4?(a+b), where R and R1 are hydrogen or optionally substituted hydrocarbyl, a is 0, 1 or 2, b is 1, 2 or 3, and a+b is ?3, Q is —R5—[NR6(CH2)n]eN(R6)2, where R5 is a hydrocarbyl diradical and R6 is hydrogen, hydrocarbyl, or acyl, e is 0, 1, 2, 3 or 4, n is 2, 3, 4, 5 or 6, with organosilicon compounds selected from siloxanes comprising units R d ? ( O ? R 1 ) f ? SiO 4 - ( d + f ) 2 ? ? ? and ? ? ? R c ? SiO 4 - c 2 or silanes RcSi(OR1)4?c, where c is 0, 1, 2 or 3, d is 0, 1 or 2, f is 1, 2 or 3, with the proviso that d+f is ?3, basic catalysts selected from alkali metal hydroxides, alcoholates and siloxanolates, and optionally, alcohols H—[O(CHR2)p]mOR3, where R2 and R3 are hydrogen or hydrocarbyl, p is 2, 3 or 4, and m is 0 or an integer from 1 to 100, (ii) reacting by heating to 70-100° C.

Abstract: The invention concerns polysiloxane compounds which contain the following components: 1. organopolysiloxane with at least two aliphatic double bonds in the molecule; 2 organopolysiloxane with at least two Si—H groups in the molecule; 3. noble metal catalyst; and 4. hydrophilic modifier of general formula (I) [H2C═CH—A1—(A2)m—X]nB (I), in which A1, A2, X, B, m and n have the meanings given in claim 1. The polysiloxane compounds are stable during storage and are used as dental casting compounds.

Abstract: The present invention relates to a process for the preparation of organosilicon compounds containing carboxyl groups. According to the process of the invention, organosilicon compounds containing carboxyl groups are prepared in the presence of Bronstedt or Lewis acids at relatively low temperatures thus avoiding undesirable side effects of higher temperatures such as gelling due to crosslinking.

Abstract: A crosslinkable composition comprising (A) an organopolysiloxane which has at least one monovalent SiC-bonded radical containing primary and/or secondary amino groups, and (B) a crosslinking component selected from an alkoxysilane and/or siloxane which contains at least one carboxylic acid anhydride group. The crosslinkable composition and/or the resultant organopolysiloxane compound obtained from the reaction of organopolysiloxane (A) and crosslinking component (B) can be used to treat organic fibers and textile structures produced therefrom.

Abstract: Emulsions which are prepared by reacting (A) an organopolysiloxane which has at least one monovalent SiC-bonded radical with primary and/or secondary amino groups, with (B) a carboxylic acid anhydride in the presence of (C) an emulsifier and (D) an aqueous phase. These emulsions are suitable as textile treating agents.

Abstract: The invention relates to a cleaner and/or conditioner for glass-ceramic surfaces which contains epoxide funcitonal organopolysiloxanes. The cleaner and/or conditioner may additionally contain other components, such as non-reactive organopolysiloxanes, surfactants, organic solvents, scouring agents, acid, additional additives and water, the composition being present as an oil-in-water or a water-in-oil emulsion.

Abstract: The invention relates to a process for preparing highly dispersed metal oxides whose surfaces are modified by an ammonium-functional organopolysiloxane as a charge controlling substance for positive chargeable toners, in which the highly dispersed metal oxides are reacted with an organopolysiloxane which contains silicon-bonded terminal hydroxyl and/or alkoxy groups, diorganosiloxane units, in which the two organic radicals are monovalent hydrocarbon radicals, and siloxane units in which the organic radicals contain a positive charged nitrogen which is bonded to silicon via carbon.