Abstract: Provided is a process for the preparation of polyorganosiloxanes containing unsaturated functions. A polyorganohydrogenosiloxane (A) containing at least 0.1 mol % of hydrogen atoms linked directly to the silicon is reacted with at least a stoichiometric amount of a hydrocarbon compound (B) having at least one ethylenic or acetylenic unsaturation, in the presence of a catalytically effective amount of a dehydrogenative condensation catalyst comprising a metal complex of formula (I): L.sub.n MR.sub.x Y.sub.y. M represents a metal chosen from titanium, zirconium and hafnium; the symbols L are the same or different and represent a hydrocarbon ligand of the metal M, the said ligand donating from 3 to 8 .pi.-electrons to the valence shell of the said metal; n is an integer ranging from 0 to 3; the symbols R are the same or different and represent a hydrocarbon or organosilicon ligand of the metal M, the ligand being a .sigma.

Abstract: The invention relates to binders for self-crosslinkable varnishes and paints comprising one or a number of hydroxylated and/or carboxylated fluorinated copolymers and one or a number of epoxidized and/or alkoxylated acrylic copolymers.

Abstract: A self-dispersing curable epoxy composition is prepared upon contacting (a) 1.0 reactive equivalents of an epoxy resin, (b) from about 0.01 to 1.0 reactive equivalents of a polyhydric phenol, and (c) between 0.005 and 0.025 reactive equivalents of an amine-epoxy adduct, wherein the amine-epoxy adduct is formed upon contacting 1.0 equivalents of an aliphatic polyepoxide and between 0.3 and 0.9 reactive equivalents of a polyoxyalkyleneamine. The self-dispersing curable epoxy resin forms an aqueous dispersion upon mixing with water. When cured, the dispersion is useful as a coating composition.

Abstract: An aqueous paint which exhibits improved dispersion property in the water and dispersion stability, has a low viscosity enabling the painting operation to be efficiently carried out, and cures at low temperatures within short periods of time to form a coating which after cured exhibits high degree of workability, high corrosion resistance, and elutes out little into the content. The aqueous paint comprises an epoxy acrylate resin prepared by modifying, with a (meth)acrylic monomer, a copolymerized epoxy resin having a number average molecular weight of 8,000 to 15,000 and containing, as phenolic components, a bisphenol-A component and a bisphenol-F component at a molar ratio of from 5:5 to 8:2, and a curing agent of a thermosetting resin having a methylol group.

Abstract: A block copolymer comprising siloxane segments, amphoteric monomer units and/or cationic nonomer units, and if necessary monomer units of precursors thereof, and nonionic monomer units, obtained by polymerization in the presence of a special azo group-containing polysiloxane compound is useful as paint resins, coating resins and base materials for hair cosmetics.

Abstract: The invention provides novel macromonomer and carboxyl functional polyurethanes having a high carboxyl content. The invention further provides dispersions, coatings and magnetic recording media comprising these polyurethanes, or blends or copolymers of these polyurethanes with quaternary ammonium compounds. The invention further provides novel dispersions, coatings and magnetic recording media comprising combinations of carboxyl functional polyurethanes having a high carboxyl content with quaternary ammonium polymers.

Abstract: A method for producing an epoxy polyetherpolyol having 15 to 75 wt. % epoxy comprising heating a polyol and catalyst to initiate condensation, removing water, introducing sufficient epoxy into the reaction mixture to give 15 to 75 wt. % epoxy in the product. Generally, between 0.5 and 1.19 moles of water per mole of polyol are removed. In one embodiment at least 95 wt. % of all of the polyol is introduced initially into the reaction zone. In another embodiment the condensation is terminated prior to 93 percent completion. Also provided are novel compositions suitable for drilling fluids, adhesives and coatings.

Abstract: Wet-like cleaning wipes and similar articles that are particularly useful in removing perianal soils. These wipes comprise a carrier substrate such as tissue paper web that is treated with a high internal water phase inverse emulsion made with an organopolysiloxane-polyoxyalkylene emulsifier. The organopolysiloxane-polyoxyalkylene emulsifiers provide better water retention than other organic emulsifiers used in formulating high internal phase inverse emulsions, as well as better hand feel aesthetics for the wipe treated with the emulsion.

Abstract: To provide an epoxy resin composition for encapsulation of semiconductors, which is superior in curability and can yield a cured product having low moisture absorption. The epoxy resin composition comprises the following components (a), (b), (c), and (d):(a) Epoxy resin(b) Epoxy resin hardener comprising a partially aromatic-esterified phenol aralkyl resin having a conversion of esterification of 10 to 90 mol % as the main component(c) Silica powder filler(d) Cure accelerator.

Abstract: An industrially advantageous process described below has been established wherein tetrahydrofuran and a cyclic ether copolymerizable therewith are copolymerized by the use of a very small amount of a commercially available heteropolyacid as it is untreated, the heteropolyacid of the catalyst is recovered, recycled and reused in a simple way, and a high quality polyether substantially free from catalyst contaminants is obtained.

Abstract: Organosiloxane compositions curable to silicone elastomers having improved weep properties are described. The compositions include an alkenyl-containing polydiorganosiloxane, an organohydrogensiloxane, a platinum-group metal catalyst and a MQ-type resinous organosiloxane copolymer; and a silicone elastomer prepared from such composition. A method of a minimizing the leakage of a hydrocarbon fluid from a container using the silicone elastomer is also described.

Abstract: The present invention relates to a hardenable organopolysiloxane composition having a viscosity of less than 30,000 Poise at 25.degree. C. comprising (A) 30 to 75 wt % of a silicone resin, (B) 70 to 25 wt % of a mercapto functional organopolysiloxane, (C) 0.1 to 10 parts by weight per 100 parts by weight of (A)+(B) of a mercapto functional organosilane, and (D) 0.01 to 10 parts by weight per 100 parts by weight of (A)+(B) of a condensation catalyst. The present invention also relates to an article of manufacture obtained by applying the hardenable organopolysiloxane composition to a substrate, exposing the composition and substrate to high energy radiation, and then applying a solid support to the coated substrate.

Abstract: A photocurable and thermosetting matte liquid resist composition developable with an aqueous alkali solution is disclosed. The composition comprises in combination (A) a photosensitive prepolymer having a carboxyl group in combination with at least two ethylenically unsaturated bonds in the molecular unit thereof, (B) a photopolymerization initiator, (C) a diluent, (D) an epoxy compound having at least two epoxy groups in the molecular unit thereof, and further (E) a finely pulverized aluminum silicate matting agent in combination with (F) a filler precipitation preventing agent capable of effective thixotropic adjustment in the composition. The composition may further comprise (G) an epoxy resin curing agent. The composition can be advantageously used for the formation of a solder resist on a printed circuit board.

Abstract: Aqueous emulsion of one or more water dilutable epoxide resins, containing10 to 70 wt % of one or more epoxide resins5 to 50 wt % of one or more organic solvents having a boiling point of 100.degree. to 160.degree. C.,10 to 70 wt % of water,and one or more chlorinated polyolefines in a weight ratio of epoxide resins:chlorinated polyolefine of 10:0.5 to 10:4.5, percentages by weight relating in each case to the total aqueous emulsion.The emulsions can be used for the preparation of coating agents, especially for coating plastic substrates.

Abstract: A sequential catalysis of the ring opening polymerization of cyclic organosiloxanes using a base catalyst that can be neutralized by a subsequent redistribution and condensation Lewis acid catalyst, preferably a phosphonitrilic compound, permits the rapid synthesis of functionalized and poly-functionalized silicone copolymers such as alkenyl hydride copolymers, a new composition of matter, which is a one component curable silicone by means of hydrosilylation or peroxide initiated free radical polymerization. The alkenyl hydride copolymer is formulated into a curable composition, emulsified and coated onto an automobile airbag and subsequently cured.

Abstract: What is disclosed is a new composition for forming coating water repellent films with a very smooth water-repellent surface. The composition imparts an attractive appearance to the coating film and assures that less time is needed for water to descent down a substrate.

Abstract: The toner particles of this invention comprise pigment and a resin. The resin comprises a novel polymer formed from ethylenically unsaturated monomers, macromeric moieties that render the resin dispersible in hydrocarbon solvents, and a surface-release promoting moiety. When used for toner particles the polymer further comprises charge directing chelating moieties. The toner particles also include a charge director, preferably a metal cation. The toner particles, when dispersed in a carrier liquid, are useful as liquid toners for electrographic or electrophotographic processes.

Abstract: Polymers containing a high percentage of vinyl alcohol units are difficult to process into sheet, film, injection-molded objects, or fibers. Such melt-processing is greatly enhanced by admixing certain core/shell copolymers having a rubbery, preferably crosslinked core mainly of units derived from butadiene, and an outer shell mainly of a copolymer of styrene and acrylonitrile. Such copolymers do not require the presence of functional groups capable of reaction with the hydroxyl groups of the poly(vinyl alcohol).

Abstract: A fuel tank is made by a process comprising injection molding a polyketone polymer into one or more parts of the tank and joining the parts of the tank together. The polyketone polymer is a copolymer of repeating units of the formula --CO--(CH.sub.2 --CH.sub.2 --)-- and repeating units of the general formula --CO--(G)--, where G is a moiety originating from an olefinically unsaturated compound of at least 3 carbon atoms and the molar ratio of --CO--(G)-- to --CO--(CH.sub.2 --CH.sub.2 --)-- is between 0.02 and 0.15, and the copolymer has a limiting viscosity number, measured in m-cresol at 60.degree. C., of between 1.4 and 2.0 dl/g; and said process.

Abstract: A curable resin composition insuring good curability and having an excellent high-solid feature, a sufficient storage stability comprising 5 to 80 weight % of a polymer containing free and esterified carboxyl groups and having an acid value of 50 to 300 (mgKOH/g)(1e), 1 to 80 weight % of a polymer containing hydroxyl and epoxy groups and having an epoxy equivalent of 200 to 1000 and a hydroxyl equivalent of 250 to 1500 (2d), and 1 to 50 weight % of an alkoxyl group-containing silicone polymer having an alkoxyl equivalent of 50 to 1500 (3a), 0.1 to 5.0 weight % of a quaternary ammonium salt catalyst (4a) and 0.1 to 5.0 weight % of a monoalkyltin compound (5a).