Abstract: An ionically conductive material comprises crosslinked copolymer prepared by the reaction of (A) organopolysiloxane and polyoxyalkylene copolymer, which has at least 2 silicon-bonded hydrogen atoms in each molecule, with (B) polyoxyalkylene having at least 2 aliphatically unsaturated hydrocarbon groups in each molecule, and (C) metal ion from Group I or Group II of the Periodic Table, wherein said metal ion is dispersed in said crosslinked copolymer. Component (B) is a polyoxyalkylene having an aliphatically unsaturated hydrocarbon group at both chain terminals or a mixture of molecules in which some have an aliphatically unsaturated hydrocarbon group at both ends and some having the group at only one end. This mixture gives the highest conductivity.

Abstract: A pressure-sensitive adhesive having an excellent tack and adhesive strength is obtained from a composition which contains an alkenyl group-containing silicone polymer, a tackifying silicone resin having less than one percent hydroxyl content, an organohydrogenpolysiloxne curing agent for the alkenyl group-containing silicone polymer and a platinum-containing catalyst. The composition can be cured to a silicone pressure-sensitive adhesive by heating at relatively low temperatures.

Abstract: The subsequent tack and adhesion of a silicone pressure-sensitive adhesive can be improved by incorporating into the adhesive a small amount of an organopolysiloxane resin having a majority of R.sub.3 SiO.sub.1/2 siloxane units and the balance (R.sup.2 O).sub.a SiO.sub.(4-a)/2, preferably SiO.sub.4/2, siloxane units. The resulting composition, when brought into contact with a release liner, such a peelable protective sheet or the backside of the next turn in a roll of tape, have better tack and/or adhesion when separated from that liner than an analogous composition which does not contain the resin.

Abstract: A platinum catalyst composition having improved thermal stability, and all of the utilities of platinum catalyst compositions of the art, is provided by mixing certain organosiloxanes which contain aryl and alkenyl groups, such as 1,3-divinyl-1,3-diphenyldimethyldisiloxane, in a quantity of at least 2 moles, with a platinum complex having as a ligand an organosiloxane which contains alkyl and alkenyl groups, such as 1,3-divinyltetramethyldisiloxane (or a mixture of said platinum complex and said organosiloxane), in a quantity of 1 mole of platinum atoms. In a preferred embodiment the mixture is distilled in vacuo to remove part or all of the organosiloxane which contains alkyl and alkenyl groups, and most preferably to remove at least a portion of the complexed organosiloxane which contains alkyl and alkenyl groups.

Abstract: The present invention relates to novel organosilicon compounds and a method for their preparation. More particularly, the present invention relates to novel organosilicon compounds which are synthesized from triorganosilylmethylamine (or derivatives thereof) and a nitro group-substituted aromatic halide, as well as a method for the preparation of these novel organosilicon compounds.

Abstract: A method of producing a conductive silicone rubber particulate is disclosed in which the particulate is from 0.1 to 100 micrometers average diameter and is coated on the surface with carbon black. The method prepares an aqueous dispersion of silicone rubber composition particulate, carbon black, surfactant, and water, then removes the water.

Abstract: An organopolysiloxane graft-type polyester is prepared by reacting, in the presence of an effective amount of a hydrosilylation catalyst, a polyester containing at least one alkenyl group and having no unsaturated terminal groups, said polyester having a number average molecular weight of about 500 to about 5,000, and an organopolysiloxane containing one hydrosilyl group. The organopolysiloxane graft-type polyester has excellent compatibility with polyesters and can improve the surface smoothness and hydrophobic property of the polyester when modified therewith.

Abstract: The present invention relates to a superconducting ceramic structure consisting of a superconducting ceramic substrate whose surface carries a film plasma-polymerized from a silazane bond-containing organosilicon compound. This structure is characterized by the absence of deterioration in its superconducting properties even upon contact with water or water vapor, and thus by the long-term retention of its superconducting properites.

Abstract: The present invention relates to novel alkylamino-substituted organosilicon compounds and a method for their preparation. The described process involves a dehydrohalogenation reaction between a triorganosilylalkyl halide and an aminophenol in the presence of a hydrogen halide acceptor.

Abstract: A water resistant epoxy resin composition is disclosed, said composition comprising an epoxy resin, a compound having at least two phenolic hydroxyl groups sufficient to cure the epoxy resin component, an aromatic nitrogen-containing silane coupling agent and an inorganic filler. The epoxy resin composition is well suited for use as a sealant for electronic components.

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: According to this invention, a microemulsion of an organopolysiloxane containing cyclohexylamino groups is prepared as follows: component (A), an organopolysiloxane containing cyclohexylamino groups and component (B), a nonionic surfactant and component (C), ethylene glycol or propylene glycol are blended. Formic acid or acetic acid, component (D) and water, component (E), are then added. The mixture is then stirred to form an emulsion precursor liquid, which is then dispersed in a prescribed amount of water. The microemulsion of the organopolysiloxane containing cyclohexylamino groups prepared using the method of this invention has an excellent shelf stability.

Abstract: The present invention relates to a method for the preparation of tertiary-hydrocarbylsilyl compounds through a Grignard reaction. A Grignard reagent of formula RMgX, in which R is a tertiary-hydrocarbyl group and X is a halogen atom, is reacted with a silicon compound of formula R.sup.1.sub.a SiX.sub.4-a ; where R.sup.1 is a substituted or unsubstituted monovalent hydrocarbon group and a is an integer with a value of zero to three. The process is ran in the presence of a catalytic quantity of a cyano compound or a thiocyanate compound.

Abstract: One-part organosiloxane composition curable by a platinum-catalyzed hydrosilation reaction contain the catalyst encapsulated within finely divided particles of a cured silicone rubber. The compositions are storage-stable for up to several days at room temperature, yet cure relatively rapidly when heated.

Abstract: A platinum catalyst composition having improved thermal stability, and all of the utilities of platinum catalyst compositions of trhe art, is provided by mixing certain organosiloxanes which contain aryl and alkenyl groups, such as 1,3-divinyl-1,3-diphenyldimethyldisiloxane, in a quantity of at least 2 moles, with a platinum complex having as a ligand an organosiloxane which contains alkyl and alkenyl groups, such as 1,3-divinyltetramethyldisiloxane (or a mixture of said platinum complex and said organosiloxane), in a quantity of 1 mole of platinum atoms. In a preferred embodiment the mixture is distilled in vacuo to remove part or all of the organosiloxane which contains alkyl and alkenyl groups, and most preferably to remove at least a portion of the complexed organosiloxane which contains alkyl and alkenyl groups.

Abstract: The present invention relates to a method for the production of liquid-crystalline organopolysiloxane which provides for the facile introduction of a mesogenic group without the use of a hydrosilylation reaction.

Abstract: The present invention relates to novel organosilicon compounds and a method for their preparation. More particularly, the present invention relates to novel organosilicon compounds which are synthesized from triorganosilylmethylamine (or derivatives thereof) and a nitro group-substituted aromatic halide, as well as a method for the preparation of these novel organosilicon compounds.

Abstract: The present invention provides an organohydrogenpolysiloxane which does not have an average chemical structure as encountered with organopolysiloxanes prepared by equilibration polymerization reactions, but rather which has a clear, defined chemical structure in which the position and number of silicon-bonded hydrogen groups is clearly defined. The organopolysiloxane has a branched structure in the vicinity of one terminal of the molecular chain and has the silicon-bonded hydrogen group at each of the resulting derivative terminals. The organopolysiloxanes can be addition-reacted with, for example, organic compounds having various functional groups to give organopolysiloxane having two organofunctional groups clustered at one terminal.

Abstract: A gasket and packing material which exhibits excellent adhesiveness to substrates and resistances to degradation of properties when exposed to hot hydrocarbon oils and coolants such as used in an automobile radiator are made by curing a composition which contains polydimethylsiloxane, an organopolysiloxane having R'.sub.3 SiO.sub.0.5 and SiO.sub.2 units or R'.sub.3 SiO.sub.0.5, R'.sub.2 SiO, and SiO.sub.2 units, an inorganic filler, an alkoxysilane adhesion promoter, and a ketoxime silicon compound crosslinker.

Abstract: The cosmetic composition of the present invention exhibits excellent lubricancy since it contains silicone rubber powder containing 0.50-80 wt % of silicone oil. When it is coated on the skin, no foreign sensations or irritations are reported. A smooth and moist texture is obtained.