Abstract: Self-emulsifiable antifoams containing an organopolysiloxane in which at least 80 mole percent of the siloxane units are dihydrocarbon siloxane units, a filler, a water-soluble cellulose derivative, and as an additional dispersant, at least one compound having the following general formula:RCOO(CH.sub.2).sub.2 SO.sub.3 Mwhere R is an aliphatic hydrocarbon radical having at least 7 carbon atoms in which at least 10 percent of the number of R radicals must have at least 11 carbon atoms, and M represents an ammonium group or an alkali metal atom.

Abstract: Antifoams containing an organopolysiloxane and a solid dispersed in said organopolysiloxane, in which at least a portion of the organopolysiloxane is an organopolysiloxane which has a viscosity of from 5 to 40 mm.sup.2.s.sup.-1 at 25.degree. C. and contains on the average at least 0.5 alkoxy groups per Si-atom and has an SiC-bonded monovalent hydrocarbon radical linked to each silicon atom.

Abstract: Antifoam compositions containing organopolysiloxanes having antifoaming properties and a solid material finely dispersed in said organopolysiloxanes in which at least a portion of the solid material is a product obtained from the reaction of an isocyanate and an organic compound having at least one hydrogen atom capable of reacting with the N.dbd.C.dbd.O group.

Abstract: A composition containing a mixture of (a) an aqueous emulsion obtained from the emulsion polymerization of a diorganopolysiloxane having an average viscosity of at least 20,000 cSt at 25.degree. C and component (b) which is selected from the class consisting of (i) a paraffin wax, (ii) a perfluoropolymer in which some of the fluoro groups may be substituted with chlorine atoms and mixtures thereof. The composition is applied as a lubricant to organic fibres to improve their slip properties.

Abstract: A method for improving the lubricity and antistatic properties of organic fibers comprising coating the fibers with a composition containing a diorganopolysiloxane, a phosphorous compound capable of imparting antistatic properties to the fibers, and, if desired, paraffin waxes.

Abstract: A water repellent composition comprising an aqueous solution of alkali metal alkyl and/or phenyl siliconates, an organic aqueous soluble complexing or chelating agent and an aqueous miscible monovalent alcohol and/or ketone. This composition may be applied to building materials, such as masonry surfaces to render them water repellent.

Abstract: A method for imparting water repellency to construction materials which comprises treating said materials with a solution containing alkali metal organosiliconates of which at least 10 percent of the alkali metal organosiliconates are alkali metal propylsiliconates.

Abstract: A method of manufacturing molded structures and coatings based on curable inorganic binding agents and water which comprises coating shape-imparting surfaces made from materials such as wood, plaster, plastic or iron, with a mixture containing a curable organosilicon compound, a solvent and finely dispersed solid particles, such as silicon dioxide, quartz powder, diatomaceous earth and silicious chalk, applying the building materials, curing and removing the molded structures.