Abstract: Organopolysiloxanes having SiC-bonded oxyalkylene units and Si-bonded hydroxyl groups, in which an average of at least 15 mol percent of the siloxane units contain only one SiC-bonded monovalent organic radical and the silicon valences which are not satisfied by the SiC-bonded monovalent organic radical are satisfied by siloxane oxygen atoms or oxygen atoms of hydroxyl groups. These organopolysiloxanes are preferably prepared by reacting triorganosiloxy end-blocked organopolysiloxanes consisting of diorganosiloxane units, in which at least part of these units contain SiC-bonded oxyalkylene units and, if appropriate, organohydrogensiloxane units or organohydroxyl siloxane units or organoalkoxysiloxane units of mixtures of at least two such monoorganosiloxy units with water in the presence of an acid or base or, and subsequently with a silane or simultaneously with water and a silane in which the silane contains one SiC-bonded monovalent organic radical, or partially hydrolyzed products of the silane.

Abstract: Organic fibers are impregnated with an aqueous emulsion comprising (1) an organopolysiloxane containing diorganosiloxane units in which both organic radicals are monovalent hydrocarbon radicals, and further contains at least two monovalent SiC-bonded organic radicals with a basic nitrogen atom per molecule in which the SiC-bonded organic radicals with a basic nitrogen are present in monoorganosiloxane units, (2) an organopolysiloxane having at least 3 Si-bonded hydrogen atoms per molecule, (3) a catalyst for the condensation of Si-bonded condensable groups (4) emulsifiers, and (5) a diorganopolysiloxane containing an Si-bonded hydroxyl group in each of its terminal units and whose radicals are free of the basic nitrogen atom. If it is desired to impart hydrophobic properties to the impregnated organic fibers, then it is essential that (6) a trimethylsiloxy end-blocked diorganopolysiloxane be added to the aqueous emulsion.

Abstract: A process for coating a substrate which comprises applying to the substrate an aqueous emulsion containing:(1) A diorganopolysiloxane having terminal SiC-bonded vinyl groups;(2) An organopolysiloxane containing at least three Si-bonded hydrogen atoms per molecule;(3) A catalyst which promotes the addition of Si-bonded hydrogen to an aliphatic multiple bond; and if desired,(4) An agent which delays or retards the addition at room temperature; and(5) A thickening agent, which may be mixed with or added separately to the emulsion, and prior to cross-linking the organopolysiloxane, applying separately or together with one or more of the constituents (1) through (5);(6) A vinyl-containing trimethylsiloxy end-blocked diorganopolysiloxane in which the vinyl group is bonded to from 10 to 50 percent of the number of the silicon atoms of the diorganopolysiloxane units, and the other organic radicals are free of aliphatic multiple bonds;(7) An organosilicon adhesive compound; and(8) At least one aqueous dispersion of a

Abstract: A process for coating a substrate which comprises coating the substrate with a solution containing an organic solvent and(1) a diorganopolysiloxane having terminal SiC-bonded vinyl groups,(2) an organopolysiloxane having at least 3 Si-bonded hydrogen atoms per molecule,(3) a catalyst which promotes the addition of Si-bonded hydrogen to an aliphatic multiple bond; and optionally(4) an agent which delays or retards the addition of Si-bonded hydrogen to an aliphatic multiple bond at room temperature,(5) a diorganopolysiloxane having a viscosity of at least 10.sup.6 mPa.s at 25.degree. C. in which a vinyl group is bonded to a silicon atom in 0.033 to 3.33 percent of the diorganosiloxane units, while the other organic radicals in the diorganosiloxane units of the diorganopolysiloxane are free of aliphatic multiple bonds, and(6) an organosilicon adhesive compound.

Abstract: An organopolysiloxane composition comprising(A) at least one diorganopolysiloxane containing Si-bonded terminal hydroxyl groups,(B) at least one organosilane of the general formula RSiR'.sub.n X.sub.3-n, in which R represents a monovalent group containing carbon, hydrogen, aminonitrogen and possibly oxygen, which contains at least 2 amino groups that are bonded to silicon via silicon-carbon bond, R' represents an alkyl or aryl group, X represents the same or different alkyl or substituted alkyl groups having from 1 to 14 carbon atoms which are bonded to silicon via oxygen, n is 0 or 1 and/or partial hydrolysates thereof,(C) at least one organosilane other than (B), having at least three oxime groups and, if desired,(D) at least one condensation catalyst and an organic solvent, and a process for treating organic fibers therewith.

Abstract: An organopolysiloxane composition comprising(A) at least one diorganopolysiloxane containing Si-bonded terminal hydroxyl groups,(B) at least one organosilane of the general formula RSiR'.sub.n X.sub.3-n, in which R represents a monovalent group containing carbon, hydrogen, aminonitrogen and possibly oxygen, which contains at least 2 amino groups that are bonded to silicon via silicon-carbon bond, R' represents an alkyl or aryl group, X represents the same or different alkyl or substituted alkyl groups having from 1 to 14 carbon atoms which are bonded to silicon via oxygen, n is 0 or 1 and/or partial hydrolysates thereof,(C) at least one organosilane other than (B), having at least three oxime groups and, if desired,(D) at least one condensation catalyst and an organic solvent, and a process for treating organic fibers therewith.

Abstract: Coating compositions which impart adhesive repellent or non-adherent properties to substrates coated therewith comprising (1) vinyl endblocked diorganopolysiloxanes having an average viscosity in excess of 10.sup.6 cP at 25.degree. C. in which from 3 to 30 mole percent of the nonterminal siloxane units are diphenylsiloxane units and at least 50 mole percent of the remaining organic radicals on the siloxane units are methyl radicals, (2) organopolysiloxanes having at least 3 Si-bonded hydrogen atoms per molecule, (3) catalysts which promote the addition of Si-bonded hydrogen atoms to the vinyl groups and (4) an inert organic solvent. These coating compositions may be applied to cellulosic materials and other substrates to impart varying degrees of adhesive repellency thereto.

Abstract: Coating compositions which impart adhesive repellent or non-adherent properties to substrates coated therewith comprising (1) vinyl endblocked diorganopolysiloxanes having an average viscosity in excess of 10.sup.6 cP at 25.degree. C. in which from 3 to 39 mole percent of the nonterminal siloxane units are diphenylsiloxane units and at least 50 mole percent of the remaining organic radicals on the siloxane units are methyl radicals, (2) organopolysiloxanes having at least 3 Si-bonded hydrogen atoms per molecule, (3) catalysts which promote the addition of Si-bonded hydrogen atoms to the vinyl groups and (4) an inert organic solvent. These coating compositions may be applied to cellulosic materials and other substrates to impart varying degrees of adhesive repellency thereto.