Abstract: Lubricant compositions comprising at least one hydroxyphenyl-substituted polydiorganosiloxane and having an average phenol equivalent weight within a specific range exhibit excellent heat resistance, releasing characteristics, and lubricity, and are suitable for use as mold release agents, for achieving toner release in electrostatic copiers and as lubricants during false twisting of textile fibers.

Abstract: The present invention relates to a fiber treatment composition comprising (A) 100 weight parts of a dimethylpolysiloxane having a viscosity at 25.degree. C. of 2 to 100 mm.sup.2 /s, (B) 1 to 20 weight parts of a metal salt of a fatty acid having from 10 to 20 carbon atoms, and (C) 0.05 to 10 weight parts of at least one organopolysiloxane resin comprising SiO.sub.4/2 units and R.sub.3 SiO.sub.1/2 units wherein R denotes a monovalent hydrocarbon group. The fiber treatment compositions of this invention have excellent dispersion stability and impart superior smoothness and antistick characteristics to fibers and is especially useful in treating spandex fibers.

Abstract: The present invention relates to a novel organopolysiloxane-modified polyester and a method for the preparation thereof. The organopolysiloxane-modified polyester polymer comprises a polyester segment having a number average molecular weight of 300 to 15,000, a silicon-bonded hydrolyzable group-free organopolysiloxane segment, and a silicon-bonded hydrolyzable group-containing silicone segment. The compositions of the present invention are characterized by their ability to cure at room temperature in the presence of a condensation reaction-accelerating catalyst.

Abstract: The present invention relates to an organopolysiloxane emulsion composition comprising a hydroxy or alkoxy-endblocked diorganopolysiloxane, an alkoxy-group containing organosilicon compound, surfactant, and water. The compositions of this invention are characterized by a lack of offensive odor, high productivity and good storage stability. The organopolysiloxane emulsions of this invention are useful as fiber treatment agents. The fibers treated with the organopolysiloxane emulsion of this invention exhibit good feel.

Abstract: The present invention relates to a fiber treatment composition comprising a mixture of a dimethylpolysiloxane, a polyoxyalkylene-functional diorganopolysiloxane, and an amine-containing antioxidant or a phenol-containing antioxidant. The fiber treatment compositions of this invention exhibit excellent lubricity, static resistance, and long-term storage stability.

Abstract: The release agent compositions of the present invention comprise mixtures of amino-functional and amine-free polydimethylsiloxanes wherein the viscosity, amine equivalent and content of dimethylsiloxane oligomers containing up to 20 silicon atoms are within specified limits. The compositions do not evolve oily volatiles or silicon dioxide powder even during exposure to elevated temperatures.

Abstract: Diorganopolysiloxane compositions are provided with excellent heat resistance, especially diorganopolysiloxane compositions that are suitable for synthetic fiber lubricants. The diorganopolysiloxane composition is a mixture of (A) a diorganopolysiloxane oil and (B) an amino-group-containing diorganopolysiloxane, and has an average amino equivalent in the range of 10,000-1,000,000 and a viscosity at 25.degree. C. in the range of 10-100,000 cs.

Abstract: A fiber treating agent which is a silicone modified polyester in which a polyester has a polyoganosiloxane grafted thereto. The grafted polyester is the reaction product of an allyl ether containing polyester and a polyorganosiloxane wherein at least one of the silicon atoms of the polyorganosiloxane has a hydrogen atom attached thereto. Preferably, the hydrogen atom is attached to one terminal end of the polyorganosiloxane. The reaction product is modified by reacting the reaction product with a polycarboxylic anhydride, and the amine salt of the modified reaction product may be formed by reacting the modified reaction product with an aminoalkylalkoxysilane. Methods of treating fibrous materials are also described.

Abstract: There is disclosed a novel silicone emulsion useful as a mold coating in aluminum die casting operations. The silicone emulsion of the invention comprises an aqueous dispersion of an organopolysiloxane of a particular general formula in combination with an alkyl diphenyl ether disulfate salt. The novel silicone emulsion of the invention exhibits stability even when diluted tens of times and subjected to mechanical shear. When applied to a heated mold surface, water is driven from the silicone emulsion and there is formed a oil film. The oil film allows for easy release of the cast part. Furthermore, the film exhibits good paintability and lubricity under extreme pressure.

Abstract: The present invention provides a fiber treatment emulsion composition which can make animal fibers (mainly wool) resistant to the shrinkage arising from water-based laundering. The composition forms a strong, solid film by reaction among the base material, crosslinker, and colloidal silica as the water evaporates. These effects are reinforced by binding between the functional groups present in the fiber and such functional groups as the aminoalkyl groups bonded in the organopolysiloxane base material, the silanol groups bonded in the colloidal silica, and the amino, epoxy, methacryloxy, or acryloxy groups bonded in the crosslinker.

Abstract: A composition is disclosed which comprises an amino radical-containing organopolysiloxane and an organopolysiloxane containing at least 3 epoxy radical-containing organic groups in each molecule.

Abstract: A method for the fabrication of water-repellent hardened moldings wherein the diorganopolysiloxane is not discharged into the effluent water during the molding or forming process and the molding itself is free of nonuniformities in its water repellency. The method for the preparation of water-repellent hardened moldings includes forming a slurry of a mixture including a calcareous raw material and a siliceous raw material in an arbitrary quantity of water; emulsifying a diorganopolysiloxane using nonionic surfactant and adding this emulsion to the slurry at a temperature at or above the cloud point of the nonionic surfactant; subsequentially draining off the water, then molding or forming, and finally drying or steam-curing to produce the water-repellent hardened molding.

Abstract: A treatment agent in which a base component and a crosslinking component contain silicon-bonded perfluoroalkyl groups and curing groups. The components are mutually soluble to homogeneity as a consequence, and this makes possible long-term storage of the mixture of the two components. Moreover, when this treatment agent is used on fibers, textiles, plastics, metals, or porous inorganics and cured, an excellent water repellency and oil repellency are generated because a uniform film is developed.

Abstract: The amino groups of an organopolysiloxane are reacted with an acrylic acid or ester compound to provide a fiber-treating composition which is almost completely free of yellowing, while at the same time being characterized by an excellent softness and smoothness.

Abstract: The present invention relates to a polyester-fiber-treatment agent that can impart smoothness and flexibility to polyester fiber at the same time that it also equips the polyester fiber with nonflammability. The treatment agent for the polyester fiber is based on an organosilicon compound that contains an organic group comprising a bromine-containing organic group bonded to silicon via carbon where the organosilicon compound has a bromine content of at least 5 weight percent.

Abstract: A fiber treating agent which is a silicone modified polyester in which a polyester has a polyoganosiloxane grafted thereto. The grafted polyester is the reaction product of an allyl ether containing polyester and a polyorganosiloxane wherein at least one of the silicon atoms of the polyorganosiloxane has a hydrogen atom attached thereto. Preferably, the hydrogen atom is attached to one terminal end of the polyorganosiloxane. The reaction product is modified by reacting the reaction product with a polycarboxylic anhydride, and the amine salt of the modified reaction product may be formed by reacting the modified reaction product with an aminoalkylalkoxysilane. Methods of treating fibrous materials are also described.

Abstract: A composition comprising the reaction product of an aminohydrocarbyl-substituted polydiorganosiloxane and a carboxy-substituted ethylene glycol is an effective composition for treating fibrous materials to enhance the water absorbency, perspiration absorbency, flexibility, lubricancy, and resilient elasticity of the material without inducing the yellowish coloration of said fiber material.The fiber treatment agent composition can be easily emulsified, and the stability of the resulting emulsion is excellent.

Abstract: An organopolysiloxane/acrylate ester copolymer emulsion composition is prepared by forming a water-based emulsion of an alkenyl-containing organopolysiloxane containing no more than 5,000 parts per million of organosiloxane oligomer which has .ltoreq.20 silicon atoms in its molecule and copolymerizing the emulsion with an acrylate ester monomer. The resultant copolymer does not suffer from disadvantages of prior art systems, such as staining in applications as a paint or water repellent, staining in fiber treatment applications, or reduction of adhesion when the copolymer is used as a release coating.

Abstract: An improved bladder lubricant composition is disclosed which provides durable release of bladders from cured rubber tires in the manufacture of the latter. The composition comprises (A) an organopolysiloxane resin consisting essentially of phenylsilsesquioxane units and dimethylsiloxane units; (B) an organosilane having trioxime or trialkoxy functionality; (C) a condensation catalyst; and, optionally, (D) at least one diorganopolysiloxane having hydroxyl or alkoxy terminal groups.

Abstract: The silicone rubber compositions of the present invention for treatment of fiber structures are cured by a condensation reaction and are thus free from drawbacks of addition reaction curing type. The compositions contain mercaptoalkyl group-containing di- or trialkoxysilanes and aliphatic monohydroxy alcohols. As a result, even when inorganic filler content is increased in dispersion, viscosity stability was excellent, and high-strength films are readily obtained. Condensation reaction-curable silicone rubbers for treatment of fiber structure are provided which have excellent abrasion resistance and a pot life above 8 hours.