Abstract: There is provided a process for the production of sulfur containing organosilicon compounds of the formula (I) Z -- Alk -- S.sub.x -- Alk -- Z, where Z is the grouping: ##STR1## in which R.sup.1 is an alkyl group having 1 to 5 carbon atoms, a cycloalkyl group with 5 to 8 carbon atoms, the benzyl group, phenyl or phenyl substituted with at least one methyl, ethyl or chloro group, R.sup.2 is alkoxy of 1 to 4 carbon atoms, methoxyethoxy, cycloalkoxy with 5 to 8 carbon atoms, phenoxy or benzyloxy, R.sup.3 and R.sup.4 are alkyl of 1 to 3 carbon atoms or hydrogen, Alk is divalent saturated hydrocarbon group having 1 to 5 carbon atoms or such a group interrupted by --O--, --S-- or --NH-- and x is a number from 2.0 to 6.

Abstract: Very pure S-carboxymethyl-L-cysteine is prepared by reacting L-cystine in liquid ammonia with metallic sodium to form the disodium salt of L-cysteine, evaporating the ammonia, reacting the disodium salt of L-cysteine with an aqueous solution of chloroacetic acid and precipitating the S-carboxymethyl-L-cysteine formed by acidifying the reaction mixture. There is employed 0.1 to 10 weight percent of a reducing agent based on the chloroacetic acid.

Abstract: A granulate organosilane preparation is made consisting essentially of (a) 30 to 60 weight percent of at least one organosilane of the formula ##STR1## where R.sup.1 is an alkyl group with 1 to 3 carbon atoms, R.sup.2 is an alkyl or alkoxy group with 1 to 3 carbon atoms, R is an alkylene group with 1 to 5 carbon atoms and x has a value from 2.0 to 6.0, and (b) 70 to 40 weight percent of carbon black.

Abstract: This invention relates to cation-exchanging, water-insoluble aluminosilicates containing bound water and an ionic surface-active compound resistant to water hardness formers and having, for every mol of Al.sub.2 O.sub.3, from 0.7 to 1.5 mols Cat.sub.2/n O, where Cat is a cation having the valence n, and from 0.8 to 6 mols SiO.sub.2, and being produced by the precipitation of said aluminosilicate in an aqueous solution, wherein said reaction is conducted in the presence of an aqueous solution of said ionic surface-active compound, and optional subsequent crystallization; as well as a process for its preparation and a process for the sequestration of water hardness cations employing said aluminosilicates.

Abstract: There is provided a boriding agent for mass produced parts of ferrous and non-ferrous metals consisting essentially of a boron yielding material, activator, filler and water as a binder and containing in the boriding agent 2 to 8 weight % of pyrogenic silica.

Abstract: Refractory metals, especially niobium and tantalum, are deoxidized by heating at 600.degree. to 1300.degree. C. under a protective gas in an alkali or alkaline earth halide salt melt containing at least 10% fluoride.

Abstract: The use of a container in a metallurgical process, said container comprising two or more components which are clinched or crimped together, said container having contents which comprise an air, moisture, or air and moisture sensitive material, said use comprising introducing said container with its contents into a melt comprising at least one metal. The combination of the container and additive and an improved metallurgical process are also provided.

Abstract: Laminated safety glass wherein the adhesive binder used contains at least 50% by weight of 2-ethylhexylmethacrylate, 0.2 to 2% by weight of the binder of at least one alkylacyl peroxide and 0.005 to 0.5% by weight of the binder of at least one compound which contains a labile halogen atom, as solution in a phlegmatization agent, 0.01 to 10 ppm Cu.sup.++ -ions in the form of a copper salt soluble in the binder and 0.05 to 3% by weight of the binder of a .omega.-mercaptoalkyltrialkoxy silane.

Abstract: Gypsum plaster having a delayed setting time is made by adding a mixture of mesotartaric acid and l-tartaric acid or d,l-tartaric acid or a mixture of l-tartaric acid and d,l-tartaric acid to the gypsum plaster.

Abstract: There are prepared acyl cyanides of the formula ##STR1## where R is a straight or branched chain alkyl group having 1 to 18 carbon atoms, preferably 1 to 10 carbon atoms, and which also can be substituted by one or more phenyl groups or halogen atoms, preferably chlorine, or R is preferably a cycloalkyl group having 3 to 8 carbon atoms, preferably cyclopropyl, which can have one or more 1 to 3 carbon atoms alkyl or halogen, preferably chlorine, substituents wherein in all of the above set forth substitutions the halogen atoms and the phenyl groups are not on the carbon atom adjacent to the carbonyl group or R is a substituted phenyl group, a naphthyl group, a substituted naphthyl group or a five membered heterocyclic group, e.g., furyl, thienyl or alkyl substituted thienyl wherein the substituents on the phenyl or naphthyl are halogen atoms, nitro groups or alkyl or alkoxy groups having 1 to 5 carbon atoms.

Abstract: 2-Hydroxy-4-methyl valeric acid and its salts are useful as sweeteners. The preferred sweeteners are the sodium and potassium salts.

Abstract: In a monolithic carrier catalyst containing a catalytically active substance for the purification of a stream of exhaust gases from an internal combustion engine, the improvement comprises providing an increasing concentration of catalytically active substance on the monolithic carrier catalyst, wherein the concentration increases in the direction of flow of the exhaust gases. The catalyst is particularly useful in oxidizing and/or reducing the noxious substances in automotive exhaust gases.

Abstract: A compact, abrasion resistant sodium percarbonate is produced by reacting sodium carbonate with hydrogen peroxide. There is employed a solution saturated in sodium percarbonate and also containing (1) sufficient sodium carbonate that there is present sodium carbonate decahydrate as a solid phase, (2) sodium chloride in an amount of 100 to 200 grams per liter, (3) an active oxygen stabilizer and (4) sodium hexametaphosphate in an amount of 0.1 to 1.9 grams per liter. There is added hydrogen peroxide in an amount about equivalent to the dissolved sodium carbonate which results in a supersaturated solution of sodium percarbonate. The supersaturation is broken down by precipitation of sodium percarbonate during the addition of the hydrogen peroxide and up to 60 minutes thereafter. The entire process is carried out at a substantially constant temperature within the range of 10.degree. to 20.degree. C.

Abstract: An improved process for the trans-esterification of esters of acrylic or methacrylic acid in the presence of a trans-esterification catalyst and a polymerization inhibitor includes the use of about 0.05 to about 10% by weight of an alkali metal cyanide as the catalyst.

Abstract: A compact, abrasion resistant sodium percarbonate is produced continuously by reacting sodium carbonate and hydrogen peroxide in the presence of sodium percarbonate inocculant seeds, sodium chloride, an active oxygen stabilizer and sodium hexametaphosphate at 10-20.degree. C, the process comprises feeding into the preliminary inocculant and aqueous hydrogen peroxide solution containing an active oxygen stabilizer and simultaneously either (1) a filtered solution saturated in sodium carbonate and containing 40-100 grams per liter of sodium percarbonate, 0.1-1.0 gram of sodium hexametaphosphate per liter, 100-200 grams of sodium chloride per liter and an active oxygen stabilizer or (2) a mother liquor containing 40-100 grams of sodium percarbonate per liter, 0.1-1.

Abstract: A continuous process for the production of epoxidized olefinic compounds comprising continuously reacting a mixture of an olefinic compound, a carboxylic acid, a strong mineral acid catalyst and a hydrogen peroxide characterized in that the reaction is conducted in the presence of an excess of water under evaporative cooling conditions whereby the desired reaction temperature is maintained, separating the epoxidized olefin from the aqueous acid solution and recycling the aqueous acid solution.

Abstract: Benzoyl cyanide is made by reacting benzoyl chloride with an alkali cyanide in the presence of a carboxylic acid nitrile and a copper (I) salt at a temperature of about 50.degree. to 160.degree. C.

Abstract: Process for continuous production of propylene oxide (FIG. 1) from propylene and aqueous hydrogen peroxide. The aqueous hydrogen peroxide is first reacted with propionic acid in the presence of acid catalyst to form perpropionic acid (1). The perpropionic acid is taken up by extraction in benzene (5 , 12), and following drying of the benzene solution (16), the perpropionic acid in the solution is reacted with propylene (18) for oxidation of the propylene to propylene oxide and conversion of the perpropionic acid back to propionic acid. The reaction mixture is worked up to separate propylene oxide, propionic acid and benzene (25, 27, 31, 33), and the latter two are recycled. In the benzene extraction (5, 12), an aqueous raffinate (7) is formed containing hydrogen peroxide and acid catalyst. Water is removed from the aqueous raffinate (8) and the concentrate is recycled to the propionic acid reactor. Make-up hydrogen peroxide can be added to the aqueous raffinate before the removal of water.

Abstract: There are produced 6-aryl-s-triazolo-(4,3-a)-pyrido-(2,3-f)-(1,4)-diazepines of the formula: ##STR1## wherein R.sub.1 is hydrogen, a halogen atom, an alkyl group with 1 to 6 carbon atoms, a hydroxy group, an alkoxy group with 1 to 6 carbon atoms, a mercapto group, an alkyl mercapto group having 1 to 6 carbon atoms, an alkylsulfoxido group with 1 to 6 carbon atoms, an alkyl sulfono group with 1 to 6 carbon atoms, an amino group, an aliphatic acylamino group with 2 to 6 carbon atoms, a monoalkylamino group with 1 to 6 carb0n atoms, a dialkylamino group with 1 to 6 carbon atoms in each alkyl group or a saturated heterocyclic amino group having 5 to 7 members in the ring including 1 to 2 nitrogen atoms and 0 to 1 oxygen atoms in the ring,R.sub.

Abstract: Solid thermoplastic terpolymer of trioxane is prepared by reacting trioxane in the presence of a prepolymer having recurring units consisting essentially of about 87-99 percent by weight of units derived from at least one cyclic formal and about 13-1 percent by weight of units derived from diglycerin diformal.