Abstract: Aqueous dispersions of binders may be used to make a slurry of a ceramic material. The slurry may then be shaped to a green part by conventional techniques such as tape casting. The slurry may be spray dried to give a free flowing powder which may be formed by dry pressing, roll compaction or other similar techniques. The tensile strength of the green part may be increased by subjecting the green part to an energy treatment such as heat or irradiation including ultraviolet (UV), X-rays and electron beams.

Abstract: Herbicide adjuvants are disclosed with enhance the effectiveness of a broad spectrum of postemergent herbicides. These adjuvants preferably contain a low foaming nonionic surfactant, an anionic surfactant, a lower alkanol ester of a fatty acid, and a hydrocarbon oil component.

Abstract: Anionic Emulsions of asphalt, bitumen, or tar which may optionally contain a latex of a rubbery polymer may be set using a destablizing system comprising either an alkali silicofluoride in the presence of a sulfamate or a mixture of an amine in the presence of a divalent metal ion. The setting time for such emulsions can be reduced to less than half an hour.

Abstract: Porous green ceramic parts may be prepared by componding 90 to 60 weight percent of a particulate ceramic material with 10 to 40 weight percent, on a dry basis, of a latex of a polymer. The compound is frothed, shaped and set. The green part may then be sintered. The process avoids the expense of preparing solid ceramic compounds containing waxes or sawdust which burn out to create voids. The process is useful to prepare ceramic filters, catalysts, or light weight metal ceramic foams.

Abstract: The properties, and particularly the print gloss, of coated, unprinted paper may be predicted using surface profilometry. The profilometer is preferably hand held so the contour of paper in jumbo rolls in the finishing and storage area may be determined quickly. The surface contour is then compared to a calibration curve to predict the desired property.

Abstract: A conductive foam having a surface resistance of not more than 9.9.times.10.sup.10 ohms as measured by DIN 53,345 may be prepared by incorporating into the base compound at least about 5 parts by dry weight per 100 parts by weight of polymer of a dispersion of carbon black stabilized by a soap predominantly of the same type as that compatible with the process used to set the foam; and processing the compound in a conventional manner.

Abstract: Impact resistant thermoplastic molding materials containing a styrene polymer modified with rubber to be impact resistant, a hydrogenated styrene containing block copolymer and a polyphenylene ether as well as optional additives in which 50 to 98 percent by weight of the particles of the flexible component of the impact resistant styrene polymer have an average particle diameter of equal to or less than 1.0 micron and 2 to 50 percent by weight of the particles of the flexible have an average particle diameter of equal to or greater than 2 microns.

Abstract: Carpet, or carpet tile having a tough resilient backing may be prepared by incorporating a fleece (6) into a foam backing on a carpet. The foam (5) is applied to the back of a carpet and the fleece (6) is overlaid and the foam and fleece are crushed together and gelled preferably using a drum laminator (10) then dried in a conventional oven (13). The resulting carpet may be cut into carpet tiles. The carpet or tile has lay flat properties and good abrasion resistance.

Abstract: The invention pertains to flame retardant polyurethane foams prepared by the reaction of a polyoxyalkylene polyether polyol with toluene diisocyanate and a blowing agent wherein the flame retardant compound is selected from the group consisting of dicyandiamide, oxamide and biuret. The amount of flame retardant may range from about 25 weight percent of about 75 weight percent of the total composition.

Abstract: The properties of an adhesive are a function of its adhesive or tacky properties and its cohesive or internal strength properties. Generally, varying the polymer properties to increase the cohesive strength of the adhesive will lower the tack of the adhesive. An improvement in both the cohesive and adhesive properties of an adhesive comprising a polymer and a tackifier by using a polymer which comprises a plastic grafted onto an elastomer; and a tackifier which is more compatible in the elastomer.

Abstract: An improved dental crown veneer composite which has excellent appearance and wear characteristics and which can be installed in a single office visit is disclosed. Also described is a method of installation, a method of producing said dental crown composite and useful tools for practicing the invention.

Abstract: Chemical beneficiation of coal and other carbonaceous solids utilizing hydrofluoric acid and ammonium chloride.

Abstract: A blend of solvent-extracted neutral (SEN) oils is described which is particularly useful in formulating heavy duty motor oils for lubrication of both diesel and gasoline engines. SEN 100, 140, and 300 are combined in required proportions to meet specified viscosity and boiling range characteristics. This base oil blend, upon the addition of lubricant additives to form a finished motor oil, provides the basis of an SAE 10W-30 grade CD/SF oil that meets the specifications for lubrication of both turbocharged diesel and gasoline engines.

Abstract: An integrated, continuous (or batch) process for the beneficiation and/or liquefaction of coal, especially low rank coals, is provided, the process generally involving admixing coal with an organic liquid medium under high shear agitation, further beneficiating the coal by admixing the same in an aqueous medium optionally containing a monomer and a polymerization catalyst therefor and subjecting the resultant coal product to further high shear agitation in the presence of certain organic liquid media to provide a liquefied coal extract product and a further solid coal product. Beneficiated solid and liquefied coal products are also provided.

Abstract: Coal-aqueous mixture having high solids content and excellent stability are provided by an improved process involving selective mixing and other conditions.

Abstract: An apparatus for froth flotation separation of the components of a slurry, said apparatus comprising at least one flotation cell, at least one spray nozzle for feeding slurry to said flotation cell, and a rotatably mounted skimmer means for skimming froth from said flotation cell, wherein said spray nozzle is affixed to and situated behind the rotational direction of said skimmer means and wherein said spray nozzle and skimmer are adapted to simultaneously rotate thereby causing the skimmer to skim the froth in the direction opposite to the spraying direction of the spray nozzle.

Abstract: A process for the preparation of microorganisms, ATCC No. 39327 which are capable of reproducible reduction of sulfur, particularly organic sulfur, in coal wherein the novel microorganisms are grown in situ enriched with sulfur compounds and subsequently grown in the presence of a coal substrate and nutrient medium while maintaining an essentially neutral pH. Contacting an aqueous coal slurry with the novel microorganism of the present invention provides coal having reduced organic sulfur content.

Abstract: An improved method and apparatus for froth flotation separation of the components of a slurry, having particular utility for the beneficiation of coal by the flotation separation of coal particles from impurities associated therewith, such as ash and sulfur. In this arrangement, an improved open flow, spiral nozzle is positioned above a flotation tank having a bath therein, and sprays an input slurry through an aeration zone into the surface of the water. The spraying operation creates a froth on the water surface in which a substantial quantity of particulate matter floats, while other components of the slurry sink into the water bath. A skimming arrangement skims the froth from the water surface as a cleaned or beneficiated product.

Abstract: A process for the beneficiation of coal by froth flotation comprising surface treating particulate coal with a polymerizable monomer, a polymerization catalyst and a liquid organic carrier thereby rendering said particulate coal hydrophobic and oleophilic and introducing said surface treated particulate coal to a froth flotation vessel containing a water wash medium thereby resulting in a froth phase and an aqueous phase, the improvement comprising pre-treating said water wash medium prior to introducing said surface treated particulate coal with an organic carboxylic acid.

Abstract: An improved spray apparatus for the froth flotation of a liquid-solid slurry, e.g., water-containing coal particulate, is disclosed. The initially high velocity of a spray of the slurry prior to its contacting the surface of liquid in a froth flotation cell is significantly reduced through a double deflection arrangement associated with the spray nozzle. This reduction in the velocity of the spray results in a more efficient froth flotation process.