Abstract: A method of determining the concentration of each of two salts in a liquid medium is disclosed. Sound velocity, X-ray absorption and temperature information are used to determine the respective concentrations.

Abstract: A filled resin composition having thixotropic properties is prepared by blending (a) a liquid polyester resin, and (b) a solid filler (such as calcium carbonate), which has been treated with an effective amount of a polymer prepared from (1) an addition polymerizable organic monomer which does not contain an acid group and (2) an addition polymerizable acid. The preferred polymer is ethylene/acrylic acid.

Abstract: High solids coatings are prepared from (1) adducts of a polyepoxide and a polyamine and (2) a polyisocyanate blocked with a ketoxime or lactam.

Abstract: A solid catalyst composition comprising a silica or silica-treated compound and a tin catalyst compound bonded to the surface of the silica compound which is not deactivated in the presence of silica or silica-treated compounds. A process for preparing the solid catalyst by contacting a silica compound containing reactive hydroxyl groups with a tin catalyst compound at a temperature range from about 130.degree. to 165.degree. C. under dynamic conditions whereby the tin catalyst compound bonds to the silica compound. Generally, after the reaction, at least a portion of the hydroxyl groups present on the silica compound are absent and, more preferably, substantially all the isolated hydroxyl groups are absent. A urethane composition containing the solid catalyst is also provided wherein the solid catalyst is not deactivated by the addition of silica or silica-treated compounds.

Abstract: A thickening composition is made by blending (a) a liquid emulsion polymer made from (i) an addition polymerizable acid, (ii) an addition polymerizable nonionic vinyl monomer, and (iii) a nonionic vinyl surfactant ester; and (b) a urethane polymer having at least three hydrophobic groups, at least two of which are terminal hydrophobic groups, the hydrophobic groups being linked by hydrophilic groups. The thickening compositions of the invention have an excellent combination of properties including leveling, lack of sagging, and lack of syneresis.

Abstract: Allyl derivatives of phenols, thiophenols and arylamines are prepared by contacting such aromatic reactant with an allyl lower alkyl carbonate in the presence of a molybdenum, tungsten or Group VIII metal.

Abstract: An electrode produced by electroplating ruthenium metal on a substrate from a nonacidic ruthenium-containing electroplating solution.

Abstract: A phosphorus modified latex composition useful in the coating of substrates with inorganic fillers. A latex particle having phosphorus groups intimately bound to the particle's surface formed by the emulsion polymerization of a latex with a phosphorus compound. Also a method of preparing a composite sheet and a paper coating latex with the phosphorus modified latex is provided.

Abstract: Advanced epoxy resins are prepared which contain triazine groups or both triazine and oxazoline groups. When cured, these resins have higher heat distortion temperatures and/or higher elongation values than advanced epoxy resins which do not contain triazine groups or triazine and oxazoline groups.

Abstract: Novel compounds exhibiting antiviral activity are disclosed, such compounds are represented by the formula: ##STR1## wherein m represents the integer 0, 1 or 2; R represents trihalomethyl, alkyl or phenyl; R.sub.1 represents hydrogen, bromo, chloro, fluoro, cyano, nitro, amino, alkyl, alkoxy or trifluoromethyl; R.sub.2 represents hydroxyl, bromo, chloro, fluoro, cyano, acetyl, benzoyl, substituted benzoyl, alkyl, alkoxy, substituted alkoxy, benzyl, substituted benzyl, alkylthio, alkylsulfinyl, alkylsulfonyl, alkylaminosulfonyl, dialkylaminosulfonyl, or the radical --O(CH.sub.2).sub.n R.sub.4 wherein n represents the integer 1, 2 or 3 and R.sub.4 represents cyano or dialkylamino; R.sub.3 represents hydrogen, hydroxyl, bromo, chloro, fluoro, cyano, acetyl, benzoyl, substituted benzoyl, alkyl, alkoxy, substituted alkoxy, benzyl, substituted benzyl, alkylthio, alkylsulfinyl, alkylsulfonyl, alkylaminosulfonyl, dialkylaminosulfonyl, or the radical --O(CH.sub.2).sub.n R.sub.

Abstract: Rigid plastic foam is flexibilized in an apparatus utilizing four sets of foam gripping belts. A first and second set of opposed belts traveling at a given speed forward the foam into the apparatus to a second and third set of opposed belts traveling at a slower speed than the first and second set of belts. The first and third and the second and fourth sets of belts are interdigitated in a region of foam crush.

Abstract: A filter holder is provided adapted to receive a filter sock and provides at least 65 percent usable area of the filter sock.

Abstract: A method removing water from aqueous alkali metal hydroxide solutions by contacting the solution with an organic liquid at elevated temperatures and pressures to form an organic liquid-water phase and a hydroxide solution phase and thereafter separating the organic water phase from the hydroxide solution phase.

Abstract: The rheology of aqueous liquids is effectively controlled by the addition to the liquid of a water-dispersible BAB triblock polymer wherein the B blocks are hydrophobic blocks such as alkyl or sulfonated poly(t-butylstyrene) and the A block is a hydrophilic block such as sulfonated poly(vinyltoluene).

Abstract: 2-Haloethylamides are prepared by reaction of 2-oxazolidinone or C.sub.1-6 alkyl or phenyl derivatives thereof with an acid halide.

Abstract: Cracks, in ceramic wall members, on the order of 1 micron or less in width are plugged helium-tight by selectively leaching a component of the wall member with a solvent, letting the resultant leach form a liquid bridge within the crack, removing the solvent and sintering the resultant residue. This method is of particular value for remedying microcracks or channels in a cell member constituting a tubesheet in a hollow fiber type, high temperature battery cell, such as a sodium/sulfur cell, for example.

Abstract: An addition polymerizable UV stabilizer is prepared by reacting an isocyanatoalkyl ester of an addition polymerizable carboxylic acid (such as 2-isocyanatoethyl methacrylate) with an UV stabilization functionality bearing an active hydrogen moiety which is reactive with the isocyanate (such as 2-hydroxy-4-(2-hydroxyethoxy)benzophenone).

Abstract: A gelled aqueous fluoboric acid fluid useful as a carrying fluid for particulate solids (i.e. "gravel") to position such gravel in a wellbore against a permeable incompetent formation to minimize the migration of sand and other granular material from the formation into the wellbore when fluids are subsequently produced from the formation. For example, an 80 lb. per 1000 gallon aqueous gel of hydroxyethylcellulose containing about 8 wt percent fluoboric acid in the aqueous solution is loaded with from 10 to 20 lbs. of 20/40 mesh (0.42-0.84 mm) gravel and placed between a screen or slotted liner in the perforated casing and the face of an incompetent formation in a wellbore.

Abstract: Aqueous dispersions of water-insoluble polymers employ fatty acid salts as plasticizers/stabilizers. These dispersions may be coagulated by adjusting the pH until the fatty acid salts are converted to free acid form.

Abstract: The strength of ice is reduced by dissolving in water prior to freezing a composition of (A) a water-soluble polyhydroxy compound or monoalkylether thereof and (B) a water-soluble organic nonvolatile compound having a hydrophilic group such as amine, carboxyl or carboxylate groups in an amount to provide an effective amount, e.g., on the order of about 0.25-5 weight percent, of (A) plus (B) based on the weight of water. The method is especially useful for application to particulate solids, such as coal and mineral ores, which are shipped and stored in masses exposed to freezing temperatures. Any ice that is formed is physically weak and will not deter the unloading of the thusly conditioned particulate solids.