Abstract: A chemical coating consisting of a mixture of tetraethoxysilane (TEOS), AC.sub.4 H.sub.9).sub.3, LiOH, Ti(OC.sub.3 H.sub.7).sub.4, Zr( ).sub.2 C.sub.5 H.sub.7).sub.4, HNO.sub.3 for pH control, and glycerol which produces an environmentally protective barrier resistant to cracking or crazing to a glass fiber to which it is applied by the SOL-GEL process.

Abstract: The present invention is drawn to an amber glass composition comprising, in weight percent, about:70-79% silicon dioxide,2.0-3.0% aluminum oxide,3.8-4.4% sodium oxide,0.1-1.0% potassium oxide,13.5-14.5% boron oxide,4.9-7.3% manganese dioxide, and0.2-0.9% iron oxide, and having a glasscolorant system selected from iron-manganese and iron-titania.

Abstract: Green ceramic formulations comprising an atactic polypropylene-containing binder are suitable for tape casting and can be effectively removed during thermal processing in reducing atmospheres. The binder may be removed in substantially dry reducing atmosphere. The tapes may be used for forming ceramic substrates and metallized ceramics such as those used in electronic packaging.

Abstract: Suitable starting materials for the manufacture of a heavy metal fluoride glass composition are mixed with solid xenon fluoride as the fluoridizing reagent, after which the mixture is heated to temperatures between 200.degree. and 400.degree. C. in an inert atmosphere for a time which suffices to bring about fluoridation of the starting materials. The intermediate product thus obtained is melted thereby forming a stable glass composition of a high purity and a high transparency. The method can be carried out in a simple manner in a furnace which need not be gastight.

Abstract: Composite materials, articles and cutting tools are prepared by densification to form a body comprising whiskers of hard refractory transition metal carbides, nitrides or carbonitrides uniformly distributed in a two-phase silicon nitride matrix. A first phase comprises silicon nitride grains and the second phase is an intergranular phase formed from one or more suitable densification aids. Optionally, dispersoid particles and/or polycrystalline fibers may also be incorporated. The preferred composite article or cutting tool has a fracture toughness equal to or greater than about 3.5 MPa.m.sup.1/2.

Abstract: Conductive polymer compositions which exhibit PTC behavior comprising a first polymeric component which may be crystalline, a second component, and a particulate conductive filler. The second component may comprise either a polymer which exhibits side chain crystallization or a crystalline material which has a sharp melting point and has poor physical properties at room temperature and/or exhibits no melt strength at elevated temperatures. The compositions are particularly useful in electrical devices which exhibit "square" resistance vs. temperature characteristics.

Abstract: Microfibrils are formed which include conductive conjugated polymer. These microfibrils are incorporated into polymer admixtures which are thermoformed into conductive shaped articles.

Abstract: An inorganic fiber having excellent properties as a reinforcement for metals, plastics and rubbers, which has a surface layer portion and an inner layer portion, the surface layer portion having a composition continuously changing from the inner layer portion to the fiber surface, and which is composed of a basic constituent unit of;(1) an amorphous substance composed of silicon, carbon, either titanium or zirconium, and oxygen,(2) an aggregate composed of;crystalline fine particles formed of at least one selected from the group consisting of .beta.-SiC, MC, a solid solution of .beta.-SiC and MC, and MC.sub.1-x, and having a particle diameter of not more than 50 nm,amorphous SiO.sub.2, andMO.sub.2, or(3) a mixture of the above amorphous substance (1) with the above aggregate (2),wherein M is titanium or zirconium and x is greater than 0 and less than 1,the inorganic fiber having an inner layer portion comprising 40 to 60% by weight of silicon, 20 to 40% by weight of carbon, 0.

Abstract: A noble metal and solid-phase lubricant composition and an an electrically conductive interconductor including the electrically conductive composition are disclosed. The electrically conductive composition includes a noble metal component and a solid-phase lubricant component. The solid-phase lubricant component is present in an amount sufficient to cause the electrically conductive composition to have a coefficient of friction which is significantly lower than the coefficient of friction of the noble metal component without causing the electrically conductive composition to be significantly less malleable than the noble metal component, nor to be significantly less corrosion resistant than the noble metal component. The electrically conductive composition can form a contact layer of the electrically conductive interconnector. The contact layer is bonded to a diffusion barrier which, in turn, is bonded to a bulk electrical conductor of the electrically conductive interconnector.

Abstract: A method for manufacturing a cementitious composition comprisinga) uniformally fluidising in a container, particles of a substantially dry powdered cementitious composition by creating aerial motion of the particles by rotational motion perpendicular to the fall of the particles,b) at the same time uniformally spraying the particles with 0.1 to 10 parts by weight (per 100 parts of cementitious composition) of water, optionally containing a cement admixture, andc) mixing the particles and the water intensively by shearing forces.

Abstract: A cementing composition useful in cementing oil, gas and water wells, comprising water, hydraulic cement and an effective amount of water soluble fluid loss additive comprised of a blend of a copolymer (i) of acrylamide/vinyl imidazole in a weight percent ratio of from about 95:5 to 5:95, said copolymer (i) having a molecular weight range of from about 100,000 to 3,000,000, and a copolymer (ii) of vinyl pyrrolidone and the sodium salt of vinyl sulfonate in a weight percent ratio of 80:20 to 20:80, said copolymer (ii) having a molecular weight range of from about 100,000 to 3,000,000. The blend is comprised of a weight percent ratio of copolymer (i) to copolymer (ii) in the range of 20:80 to 80:20. The composition can also optionally include a dispersant such as sodium or potassium salts or a sulfonated naphthalene formaldehyde condensate.

Abstract: Aqueous suspensions of ceramic particles in which the particle are coated by a metal oxide sintering aid or metal hydroxide precursor thereto and which have a sufficiently high solids content to produce casting slips which can yield net shape castings are provided. The suspensions are produced by concentrating lower solids content suspensions by crossflow filtration which disrupts hydroxide gels which inherently form by interaction of the coating with water. The resultant highly loaded aqueous suspensions may be used in net shape casting to produce cast bodies of high dimensional stability, high green strength, and with a low incidence of cracking.

Abstract: This invention concerns a sintered article for a sheath in an apparatus for continuous casting of a thin sheet and a sheath using the sintered article. The sintered article comprises boron nitride, zirconium oxide, and at least one member selected from the group consisting of aluminum nitride and aluminum borate and combines resistance to thermal shock, lubricity, and strength. The sheath is formed of the sintered article and, therefore, enjoys the prominent properties of the sintered article.

Abstract: Using a packaging material containing a fibrous substance such as pulp and a carboxyl-containing polymer a substance such as an acid type carboxymethyl cellulose, a cement mixing material such as a superplasticizer is packaged and the package is thrown into a cement formulation such as concrete, mortar or a cement paste in a truck agitator.

Abstract: A process for preparing phenol-formaldehyde novolak resins and molding compositions in which portions of the phenol normally contained in said resins are replaced by a phenol/neutral fractions extract obtained from fractionating fast-pyrolysis oils. The fractionation consists of a neutralization stage which can be carried out with aqueous solutions of bases or appropriate bases in the dry state, followed by solvent extraction with an organic solvent having at least a moderate solubility parameter and good hydrogen bonding capacity.Phenolic compounds-containing/neutral fractions extracts obtained by fractionating fast-pyrolysis oils from a lignocellulosic material, is such that the oil is initially in the pH range of 2-4, being neutralized with an aqueous bicarbonate base, and extracted into a solvent having a solubility parameter of approximately 8.4-9.11 [cal/cm.sup.3 ].sup.1/2 with polar components in the 1.8-3.0 range and hydrogen bonding components in the 2-4.

Abstract: The invention describes a film of a thermoplastic, wholly aromatic polyetherketone. The film is amorphous and comprises the polymer PEEKK which is formed of the following repeat unit:--[--Ph--O--Ph--O--Ph--CO--Ph--CO--]--wherein Ph denotes a para-phenylene group.

Abstract: The disclosed substance has a general chemical formula of La.sub.2 -Cu.sub.1 -O.sub.z, z being 3.84 to 4.00. The disclosed substance shows, at a temperature below 20.degree. K., superconductivity, either potential or real, and the substance also shows, at a temperature below 30.degree. K., superconductive photoconductivity in response to incident exciting light in a wavelength range of 420 to 640 nm. The substance is produced by heating a mixture of starting material therefor at 900.degree.-1,050.degree. C. for 5-10 hours to cause solid state reaction, cooling gradually, shaping under pressure, re-sintering at 700.degree.-1,200.degree. C., and cooling either quickly at a rate of 2,000.degree.-900.degree. C./sec or slowly at a rate of 150.degree.-200.degree. C./hour.

Abstract: A method of reclaiming unset cement compositions by mixing a polymethoxy polyphosphonate to the unset composition to cause long-term retardation of cement hydration and subsequently treating the composition with a set accelerator to reinitiate hydration.

Abstract: A soda-lime-silica green glass favoring the yellow side, rather than the bluish side of the spectrum, is produced having high visible transmittance, low infrared energy transmittance, low ultraviolet radiation transmittance, and low total solar energy transmittance by manipulating the reduction of iron (as Fe.sub.2 O.sub.3) to FeO and the percent of these two oxides to achieve these characteristics without the use of CeO.sub.2 or other UV absorbing additives and by using conventional glass melting and refining apparatus.

Abstract: This invention is directed to a self-sealing, polyether-functional liquid electrolyte useful in an electrochromic device. The electrolyte comprises the reaction product of a polyether polyamine and a mono-epoxide hydrolyzable silane. The polyether polyamine and the mono-epoxide silane are preferably reacted in amounts so as to provide at least about 2 molecules of mono-epoxide silane per molecule of polyether polyamine.