Abstract: Lubricating oil of improved dispersancy and viscosity index contains ethylene-propylene polymer bearing glycidyl methacrylate graft which as been functionalized with mercaptoacetic acid.

Abstract: The use of oxidants such as hydroperoxides in a lubricating oil have been found to be effective in reducing the war of one or more metal and/or ceramic surfaces in contact with an advanced ceramic surface. The reduced wear may be obtained in the absence of conventional antiwear additives such as zinc dialkyldithiophosphate.

Abstract: An integrated once through process for the production of ether-rich liquid fuels containing MTBE and TAME by etherifying a hydrocarbon feedstock containing C.sub.4 + isoalkenes in the presence of a high stoichiometric excess of lower alkyl alcohol. Unreacted alcohol and olefins are passes to a zeolite catalyzed conversion reactor under olefinic and oxygenates conversion condition whereby gasoline and light hydrocarbons are produced.

Abstract: An improved 1-step process is disclosed for the preparation of thixotropic overbased calcium sulfonate complex thickened compositions containing calcium sulfonate as the dispersing agent and containing CaCO.sub.3 in the form of calcite crystals in colloidal or extremely finely divided form.

Abstract: A lubricating composition for PVC or the like is provided by partially saponifying a triglyceride material, such as an animal tallow, with calcium hydroxide in the presence of at least about 10% water. The minor amount of oxidized polyethylene admixed with the saponified material maintains the resulting soap and esters in a homogeneous lubricating compositions. The lubricating compositions are particularly suitable for preparing rigid resin compositions.

Abstract: A process for converting a gaseous reactant comprising methane or natural gas to higher molecular weight hydrocarbon products is disclosed which comprises: (1) contacting said gaseous reactant with an oxidative coupling catalyst at a reaction temperature of at least about 900.degree. C. for an effective period of time to form an intermediate product comprising ethane, ethylene or a mixture thereof, said catalyst being characterized by a melting point above said reaction temperature; and (2) pyrolyzing said intermediate product at a temperature of at least about 900.degree. C. for an effective period of time to form said higher molecular weight hydrocarbon products using exothermic heat generated by the formation of said intermediate product. Novel oxidative-coupling catalysts having melting points above about 900.degree. C. are also disclosed.

Abstract: Copper salts of thiodipropionic acid derivatives provide excellent multifunctional/antioxidant characteristics for lubricant compositions when incorporated therein.

Abstract: A process for preparing a stabilized high cristobalite from a gel comprising ultramicroscopic particles of SiO.sub.2, Na.sub.2 O, and Al.sub.2 O.sub.3 where the ratio of moles of Na.sub.2 O to Al.sub.2 O.sub.3 is from about 0.95 to about 1.1, and the molar ratio of SiO.sub.2 to Al.sub.2 O.sub.3 is between about 10 and about 40. After the gel is formed, it is heated at 800-1400.degree. C. for a time sufficient to form stabilized high cristobalite.

Abstract: Ceramic dielectric compositions having a dielectric constant of between about 3,000 to 4,000; dissipation factors of below about 1.8%, insulation resistance times capacitance products of about 10,000 ohm-farads at 25.degree. C. and above 1,000 ohm-farads at 125.degree. C. and stable temperature coefficient characteristics. In one embodiment, the dielectric constant of the present invention does not vary by more than .+-.15 percent over a temperature range of -55.degree. C. to 125.degree. C.

Abstract: There is disclosed a procedure for reducing the halide content of cationic or basic dyes and consequently the corrosive effect of aqueous formulations of these dyes on stainless steel. The dyes are incorporated into aqueous formulation which may range from neutral to acidic and exposed to an anionic exchange resin. Suitable techniques include stirring beads of the resin into the aqueous formulation and passing the aqueous formulation through an ion exchange column.

Abstract: The catalyzed oxidative coupling of a lower molecular weight alkane to more valuable, higher molecular weight hydrocarbons and oxidative coupling catalysts for use therein are disclosed.

Abstract: The invention relates to the production of desirably purified refractory metal borides. The method can be used to purify even commercially available material. Careful attention is directed to the oxygen impurity level of the refractory metal boride and such will usually be maximized at a very low level. Critical attention is directed to the oxygen to carbon molar ratio. Heating of impure materials, typically presented in consolidated form and having constituent adjustments in accordance with invention principles, can lead to the preparation of products of highly desirable density, on the one hand, and prepare products of extremely low contamination levels, on the other hand.

Abstract: A grease composition comprising oil, colloidal particle filler, and, optionally, a bleed inhibitor is disclosed. The grease typically has a critical yield stress below 140 Pa at 20.degree. C., preferably below 70 or 35 Pa. The grease can advantageously be used as a cable filling material, especially for optical fiber cable. In the latter case it can result in cable having substantially no cabling loss. Preferred compositions comprise 77 to 95% b.w. of ASTM type 103, 104 A, or 104B paraffinic or naphthenic oil, or polybutene oil; 2 to 15% b.w. of hydrophobic or hydrophilic fused silica; and optionally, up to 15% b.w. of styrene-rubber or styrene-rubber-styrene block copolymer, or semiliquid rubber.

Abstract: A basic alkaline earth metal salt of a blend of organic carboxylic acids is prepared by(a) preparing a mixture of one equivalent of the blend of organic carboxylic acids and more than one equivalent of an alkaline earth metal hydroxide and/or oxide in a hydrocarbon solvent;(b) introducing carbon dioxide into the mixture obtained in an amount of at least 0.5 equivalent carbon dioxide per equivalent of excess alkaline earth metal; and(c) removing residual solids, if any, and an aqueous layer, if any, wherebythe blend of organic carboxylic acids comprises a C.sub.8-30 alkyl salicylic acid and one or more alkanecarboxylic acids in which the alkyl moiety is branched and has from 4 to 40 carbon atoms.Such a salt has dispersant properties and is suitable for use in lubricating oil and fuel compositions.

Abstract: A process for production of useful materials including a product of similar composition to nepheline involves contacting a slurry of red mud with sulphur dioxide to dissolve components of the red mud that are soluble in sulphurous acid, removing residual undissolved solids by filtration, and recovering a filtrate containing soda, alumina and silica values, removing free water from the filtrate to produce a crystallized residue, and calcining the crystallized residue.

Abstract: An oxidation and corrosion resistant diesel engine lubricant composition, particularly useful in marine and railway diesel engines, comprises a major amount of a base hydrocarbon lubricating oil and from 0.1-5.0 weight percent of a reaction product additive which is the reaction product of an N-acyl sarcosine and a substituted or unsubstituted heterocyclic azole.

Abstract: A non-deleterious coating composition for the deposition of a dry film lubricant coating on a rubber sealing element comprises:(a) 1 to 10% by weight of a component selected from the group consisting of waxes and normally solid aliphatic alcohols;(b) 1 to 10% by weight of a lubricating oil; and(c) the balance being a solvent for (a) and (b); wherein the solvent, when applied to the rubber sealing element, in said coating composition, evaporates from the coating composition before any substantial degradation of the physical properties of the rubber sealing element occurs. A method for coating a rubber sealing element and the rubber sealing element coated with the dry film lubricant are also disclosed. The invention finds particular applicability in the lubrication of rubber sealing elements, e.g., O-rings, which will be utilized in the manufacture of devices by automated assembly techniques.

Abstract: A fuel composition for internal combustion engines, and more particularly, a fuel composition for internal combustion engines containing less than about 0.5 gram of lead per gallon of fuel is described. The fuel provides acceptable valve seat protection in engines designed to operate on leaded or unleaded fuels. Ordinarily, leaded fuels contain components to reduce deposits within the engine cylinders which unleaded fuels do not. As leaded fuels become unavailable, some refiners will add valve protecting components to the unleaded fuels to satisfy the leaded market. Such fuels will then potentially cause an increase in the octane requirement. This invention deals with polybasic carboxylate additives having valve seat protection properties which avoid or minimize the octane requirement increase.

Abstract: Oil-soluble, derivatized ethylene copolymers derived from about 15 to 90 wt. % ethylene, and one or more C.sub.3 to C.sub.28 alpha-olefins, e.g. propylene, which are grafted, preferably solution-grafted under an inert atmosphere and at elevated temperatures and in the presence of a high-temperature decomposable free-radical initiator, with an ethylenically-unsaturated dicarboxylic acid material and thereafter reacted with a polyamine having at least two primary amine groups, and a carboxylic acid to form carboxyl-grafted polymeric imide, usually maleimide, derivatives are subsequently reacted with a C.sub.12 to C.sub.18 hydrocarbyl substituted dicarboxylic acid anhydride, preferably a C.sub.12 to C.sub.18 hydrocarbyl substituted succinic anhydride, to yield an oil-soluble stable imide of said carboxyl-grafted copolymeric imide whereby oil solutions thereof are characterized by minimal viscosity change over an extended period of time.

Abstract: In an improved method for converting methane to at least one higher hydrocarbon product and coproduct water which comprises contacting a gas comprising methane and at least one added gaseous oxidant with nonacidic solid, the improvement comprising conducting at least a portion of said contacting in the presence of added water.