Abstract: The processibility and initial mechanical strengths of hydraulic cement compositions, e.g., Portland cement, are improved by formulating therewith an adjuvant comprising (i) a water-soluble salt of the condensation product of an aromatic sulfonic acid with HCHO (formulated either alone or in admixture with a water-soluble salt of an aromatic sulfonic acid which has not been condensed with HCHO), (ii) lithium hydroxide, and (iii) a hydroxide of another alkali metal or of an alkaline earth metal.

Abstract: A process for preparing -trimethylhydroquinone by contacting 3,5,5-trimethyl-2-cyclohexene-1,4-dione with an acid catalyst in the vapor phase.

Abstract: Polyamides flameproofed with a halogenated derivative and including cadmium oxide as an additive to improve the arcing resistance of the polyamide are disclosed. The polyamides are particularly useful in the manufacture of electrical components.

Abstract: Aqueous latex base binder of a synthetic polymer for manufacturing tufted floor covering having improved wear-resistance. The content of hydrosoluble compounds dissolved in the aqueous phase in the latex is less than 0.5% by weight in relation to the polymer.

Abstract: An agitator mounted in a reactor is cleaned while being rotated by introducing an unconfined jet stream of pressurized liquid from a nozzle through an opening in the reactor wall into contact with the agitator and oscillating the nozzle so that the liquid jet oscillates in a plane passing substantially through the axis of the reactor.

Abstract: A method for preparing polymers of vinyl chloride in which polymerization of the corresponding monomer or monomers is carried out in microsuspension in the presence of a seeding product in the form of a dispersion of particles of a vinyl polymer previously prepared by polymerization in microsuspension, the particles of which contain at least one organic soluble initiator, without any complementary addition of initiator and in the presence of one or more other seeding products in the form of dispersion of vinyl polymer, the sizes of which differ from one another and from the particles of the first seeding product.

Abstract: Compositions based on red phosphorus and a phenolformaldehyde polycondensate.These compositions contain from 50 to 95% by weight of red phosphorus and from 5 to 50% by weight of a thermoplastic phenol-formaldehyde polycondensate of molecular weight between 120 and 1,500, wherein the molar ratio of formaldehyde to phenol is between 0.7 and 0.9.These compositions are intended for the flameproofing of plastics and do not evolve toxic products during use.

Abstract: Novel anti-soiling and anti-redeposition adjuvants for detergent compositions include at least one polymer A, said polymer itself having anti-soiling and anti-redeposition properties, at least one solubilizing and dispersing agent B for said polymer A, and at least one water repellent C for said agent B.

Abstract: Gallium values are recovered from basic aqueous solutions thereof, especially from sodium/aluminum liquors of Bayer process origin, by liquid/liquid extraction with a water immiscible organic phase comprising an organic solvent and, dissolved therein, an organic-solvent-soluble substituted hydroxyquinoline and an organic carboxylic acid compound.

Abstract: Novel copolymers are comprised of oligo-imide/hydroxylated organosilicon comonomers, or of oligo-imide/polyamine/hydroxylated organosilicon comonomers. Such copolymers are useful in the production of coatings and a variety of shaped articles, e.g., molded and/or foamed shaped articles, laminates and the like.

Abstract: Mortars and concretes are formulated from hydraulic binders, and are adapted for more rapid setting and hardening in cold weather, such formulations including the admixture of hydraulic binder, aggregates and water, and such formulations being characterized in that they include:(a) a water-soluble dispersant/water-reducing agent;(b) an inorganic basic agent selected from the group comprising the hydroxides of alkali metals other than lithium, alkaline earth metal hydroxides and the mixtures of one of such hydroxides with lithium hydroxide; and(c) a water-soluble salt of an inorganic oxyacid or an aliphatic or aromatic carboxylic acid, said acid having an ionization constant pKa of less than 2.5 in water at 25.degree.C.

Abstract: Hydrated strontium fluosilicates activated with divalent europium, having the formula:Sr.sub.1-x Eu.sub.x.sup.2+ SiF.sub.6 .multidot.2H.sub.2 Owherein 0<x.ltoreq.0.5, are novel luminophors which emit black light.

Abstract: Neral or geranial are hydrogenated into optically active citronellal in the presence of a catalytic complex comprising a rhodium derivative and a chiral phosphine.

Abstract: A process for preparing esters and halides is disclosed comprising the step of reacting a cyclic olefin having the formula I ##STR1## wherein R.sub.1 and R.sub.4 are the same or different from each other and each represents hydrogen, methyl, or ethyl;R.sub.2 and R.sub.3 are the same or different from each other and each represents hydrogen or alkyl containing 1 to 5 carbon atoms; andn represents a whole number from 2 to 12, with an acyclic olefin having the formula II ##STR2## wherein R.sub.5 represents hydrogen, methyl, ethyl or the group ##STR3## wherein R.sub.12 and R.sub.13 are the same or different from each other and each represents hydrogen or alkyl containing 1 to 5 carbon atoms;Y represents halogen; an acyloxy group R.sub.14 --CO--O wherein R.sub.14 represents alkyl containing 1-12 carbon atoms, phenyl or phenyl alkyl containing 7-12 carbon atoms, or an oxycarbonyl group R.sub.15 --O--CO wherein R.sub.

Abstract: Thermoplastic, crystalline block copolymers are disclosed, each comprising a plurality of recurring units selected from the group consisting of those of the structural formulae F.sub.1 and F'.sub.1, and combinations thereof:F.sub.1 : --A [SiR.sub.2 (GSiR.sub.2).sub.a ASiR.sub.2 G'SiR.sub.2 A].sub.p SiR.sub.2 (GSiR.sub.2).sub.a ASiR.sub.2 (OSiR.sub.2).sub.n ]andF'.sub.1 : --A [SiR.sub.2 G'SiR.sub.2 ASiR.sub.2 (GSiR.sub.2).sub.a A].sub.p SiR.sub.2 G'SiR.sub.2 ASiR.sub.2 (OSiR.sub.2).sub.

Abstract: Foundry mold and core compositions comprising sand, a silicate binder and a hardening agent include an alumina "demolding" agent having an average grain size distribution of less than 40.mu., preferably between 0.2 and 5.mu..

Abstract: Liquid/solids feed to be filtered is uniformly distributed over a filter surface by (i) initially, continuously introducing said liquid/solids feed into the feeder compartment of a compartmentalized, partitioned feed-distribution box, said feeder compartment having a volume such that no decantation results, (ii) continuing such feed as to effect an overflow of feed from said feeder compartment into a second, distribution compartment, over a partition or common wall member therebetween, via a plurality of outlet openings shaped into the top of said partition along the length thereof and being sufficiently few in number such that the rate of flow of the liquid/solids stream flowing through each opening is high, and (iii) thence uniformly cascading the entire flow of liquid/solids stream to be filtered onto suitable filter surface, advantageously after a change in the downward direction thereof.

Abstract: Novel lubricating oil polymer additives are obtained by the following:(1) by preparing, by anionic polymerization, a living diene polymer of an Mn of between about 20,000 and 300,000;(2) by functionalizing the said polymer by means of a non-polymerizable nitrogen compound having at least two <C--N=C> groups, such as the polypyridines, pyrimidine and its derivatives, pyrazine and its derivatives, 2,4,6-tri-(2-pyridyl)-1,3,5-triazine, dipyridyl sulfide, etc.; and(3) by hydrogenating the said functionalized polymer.A variant method of preparaing the said polymers comprises metalating the living polymer before functionalization; in accordance with this variant, the hydrogenation operation may take place before metalation or after functionalization.The said polymers can be used as additives which improve the viscosity index and the dispersing power of the lubricating oils. The amount of additive added is between about 0.1 and 10 percent by weight.

Abstract: Process for extracting proteins from milk which consists first of extracting the proteins, other than casein, by putting skimmed milk in contact with at least one anion exchanger resin and with silica, fixation of the proteins, then elution and finally separating the casein remaining in solution from the lactose and the mineral salts. This process is used in the dairy industries to prepare proteins usable in the food industry, the dietetic products industry, the pharmaceutical industry and the animal care products industry.

Abstract: Process for anti-redeposition of staining substances on textiles of natural, synthetic or artificial fibers or mixtures thereof in the course of operations of dry cleaning or de-oiling by means of suitably stabilized perchloroethylene in which a sufficient amount of an additive represented by at least one monoketone compound having a boiling point below or equal to 160.degree. C. and, preferably lower than 140.degree. C., is added as an anti-redeposition additive.