Abstract: This invention relates to a process for improving the ultraviolet light transmittance of ethylene glycol by treating industrial grade ethylene glycol with an aluminum-nickel alloy in the presence of an alkali compound.

Abstract: Diarylide yellow pigment compositions comprising the reaction product of tetrazotized 3,3'-dichlorobenzidine coupled into an acetoacetarylide, and, a ketimine formed by the reaction of a primary amine and an acetoacetarylide. The ketimine-containing diarylide yellow pigment compositions have improved color strength, improved transparency and contain essentially no free primary amine. Printing inks manufactured with the diarylide yellow pigment compositions of this invention have increased color strength, increased transparency, decreased degradation of publication gravure ink vehicles and decreased acidic fountain solution emulsification in offset ink printing processes.

Abstract: The use of organophosphines, organophosphonium salts or organophosphine complexes as cure catalysts in the cure of maleimide resin systems produces products having excellent physical properties and improved gel times. These systems are especially useful in the production of advanced structural composites.

Abstract: The invention relates to a water-based functional fluid thickened by an associative polyether thickener whose thickening ability is enhanced by the addition of certain fatty acid amides.

Abstract: D,1-alpha-tocopherol can be prepared by reacting trimethylhydroquinone and a phytyl derivative such as phytol or isophytol in the presence of a Lewis acid, a strong acid and an amine.

Abstract: A delayed co-initiation process for preparing polyol blends comprising(a) oxyalkylating a first initiator compound to obtain a polyol with a predetermined equivalent weight; and(b) adding a second initiator which may be the same as or different from the first and oxyalkylating to obtain a polyol with a predetermined equivalent weight based upon the second initiator.The resultant polyols are used in the preparation of polyurethane foams.

Abstract: Unwanted settling in a composition comprising a suspension of fine particles of coal in fuel oil is eliminated or substantially reduced by adding an effective amount of a polyoxypropylene-polyoxyethylene copolymer which corresponds to the formula: ##STR1## in which the values of X.sub.1, X.sub.2, X.sub.3 and X.sub.4 may be the same or different, Y.sub.1, Y.sub.2, Y.sub.3 and Y.sub.4 may be the same or different, Y.sub.1 +Y.sub.2 +Y.sub.3 +Y.sub.4 give a total oxyethylene content of the molecule of from about 10 to 80 weight percent and X.sub.1, X.sub.2, X.sub.3 and X.sub.4 have values such that the total molecular weight of the molecule is from about 1500 to 30,000.

Abstract: Flame retardant intumescent polyisocyanurate rigid foams are prepared by trimerizing isocyanate-terminated quasi-prepolymers containing predominately urethane linkages prepared by reacting an organic polyisocyanate with polyester polyols derived from the transesterification of dimethyl terephthalate process residue. The solvent blown rigid polyisocyanurate foams have exceptionally low friability.

Abstract: A method of producing a pigment-hydrophobic organic vehicle product which comprises:A. providing an emulsion which comprises:1. an organic liquid selected from the group consisting of:(a) oleophilic resins(b) organic solvents and(c) mixtures thereof,2. an emulsification agent and3. waterB. forming a water slurry of a pigment,C. admixing said emulsion with said pigment slurry,D. forcing said emulsion and pigment slurry mixture through a concentration zone andE. flushing said mixture with a hydrophillic organic vehicle.

Abstract: D,1-alpha-tocopherol can be prepared by reacting trimethylhydroquinone and a phytyl derivative such as phytol or isophytol in the presence of a Lewis acid, a strong acid and an amine salt of a non-oxidizing protic acid.

Abstract: The invention relates to functional fluid concentrates and functional fluids which can be prepared by mixing the concentrates with water. The functional fluids can be used in hydraulic systems or as metalworking compositions to cool and lubricate surfaces which are in frictional contact during operations such as the turning, cutting, peeling, or grinding of metals.The functional fluid concentrate comprises:(a) a cloud point raising metal dialkyldithiophosphate additive having the following structural formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are individually linear or branched alkyl, alkenyl, aryl, arylalkyl and alkylaryl groups having from 1 to 24 carbon atoms; and M is selected from the group consisting of Zn, Sb, Sn, Mg, and Mn; preferably Zn or Sb;(b) a polyether nonionic surfactant; and(c) an associative polyether thickener.Preferably the concentrate also contains a linear or branched alkanolamine having 2 to 10 carbon atoms.

Abstract: Polyoxyalkylated 2,2-dialkyl-1,3-propanediols which produce exceptionally low residues in pan tests at elevated temperatures are disclosed for use in fiber finishing operations.

Abstract: The present invention relates to a process for preparing transparent iron oxide pigments comprising reacting an iron compound, an ammonia releasing compound and water in a non-aqueous solvent in which both the iron compound and the ammonia-releasing compound have appreciable solubility. The reaction is performed by refluxing this composition. Where a red pigment is desired, a high boiling alcohol may be employed whereby the refluxing is carried out above 200.degree. C. which thus converts the pigment to a red iron oxide pigment during the reflux step. In order to get a metallic finish, aluminum flake pigment may be added to a mixture of the iron compound and solvent prior to addition of the ammonia-releasing salt.

Abstract: An apparatus for purifying copper phthalocyanine pigment in a continuous process without the use of acid. This apparatus comprises a container for preparing a slurry of said pigment in water, a pump and a conduit for conducting the slurry from the container to the inlet of the pump, a first heating apparatus capable of heating the slurry to a temperature of at least about 75.degree. C., a conduit for conducting the slurry from the pump to the first heating apparatus, a thin film pressure filter, and a conduit for conducting the slurry from the first heating apparatus to the thin film pressure filter. The apparatus is arranged such that the temperature of the slurry passing through the thin film pressure filter is close to the exit temperature of the slurry from the first heating apparatus. A product outlet is provided for the filter and a control valve is positioned in the product outlet.

Abstract: Rigid polyurethane foams which exhibit constant or slightly decreasing strain with an increasing stress in compression are prepared employing from 30 to 60 parts of an alkoxylated toluenediamine polyol per 100 parts of polyol mixture. These foams may be employed in shoring up geological formations.

Abstract: A cathodic electrodepositable resin particularly adapted for use as a grind resin to form a pigment paste. The resin is the reaction product of an aliphatic polyepoxide and a polyether primary amine. The resin composition has anti-foaming properties, is stable in the aqueous dispersion, and contributes to high film build.

Abstract: This invention relates to a liquid foaming additive comprising(a) a nonionic fluorochemical surfactant; and(b) a nonionic heteric polyether surfactant having at least two additive hydrogen atoms wherein components (a) and (b) are used in an effective amounts.The foaming additives are used to foam lower alkyl alcohols which are injected into oil and gas wells to break up underground formations which trap the oil and gas.

Abstract: A low phosphate machine dishwashing composition comprising an admixture of by weight about 7 to 8 percent of a maleic acid-acrylic acid copolymer, about 10 to 20 weight percent of an alkaline condensed phosphate salt, about 2 to 4 percent of a blend of ethylene oxide-propylene oxide block copolymers and about 20 to 40 percent of an alkaline carbonate.

Abstract: The subject invention relates to a process for preparing a powder containing a water-soluble vitamin which is directly compressible into a tablet prepared by spray drying (a) an aqueous slurry of a water-soluble vitamin and a binder; (b) preferably an adsorbent; and (c) a lubricant. Particularly useful water-soluble vitamins are ascorbic acid, sodium ascorbate, and calcium ascorbate. The unique feature of the process is that the lubricant is spray dried along with the other components.The invention also relates to powders prepared by this process. The powders are directly compressible into tablets and will not demix.