Abstract: A mixer and method for mixing are provided. The mixer includes a housing including a fluid inlet, an additive inlet, and an outlet. The housing defines a mixing chamber in fluid communication with the fluid inlet, the additive inlet, and the outlet. The mixer also includes an impeller disposed in the mixing chamber. When rotated, the impeller pumps fluid through the fluid inlet. The mixer also includes a slinger disposed in the mixing chamber and configured to receive the fluid from the impeller and to receive an additive from the additive inlet. When rotated, the slinger slings the fluid and the additive radially outwards. The mixer further includes a flush line extending between the mixing chamber and the additive inlet. The flush line is receives, from the mixing chamber, a portion of the fluid pumped by the impeller and to deliver the portion of the fluid to the additive inlet.

Abstract: A process for making monoalkali metal cyanurates in a powdery form from a cyanuric acid powder by adding thereto a concentrated aqueous solution of an alkali hydroxide such as sodium or potassium hydroxide. The concentrated aqueous alkali hydroxide solution is added sequentially to the cyanuric acid powder as the admixture is vigorously mixed, forming a monoalkali metal cyanurate as a hydrated powder.

Abstract: Thermoplastic composition and articles containing UV absorbers that protect the articles contents from harmful UV radiation are disclosed as well as methods for making the thermoplastic articles and methods for using the articles to contain and protect materials sensitive to UV radiation. The UV absorbers contain oxazolone and/or azine functional groups that absorb UV radiation and prevent its transmission into the article. Many of the compounds are novel compositions of matter. The generally clear thermoplastic articles of this disclosure are particularly useful for containing a variety of UV sensitive consumer products that would otherwise have to be packaged in opaque containers.

Abstract: The present invention is directed to a process for preparing salts of dihydroxychlorotriazine. The process comprises the hydrolysis of cyanuric chloride in alkaline aqueous solution and subsequent crystallization of monosalt of dihydroxychlorotriazine at neutral pH. The crystallization is improved with so-called dispersing assistants.

Abstract: The present invention relates to a device and method for the production of cyanuric chloride. The device has three units for the production, purification and isolation of cyanuric chloride, the second unit having a partial condensation and being set in such a way that the quantity of gaseous pure cyanuric chloride produced is greater than that of the liquid impure cyanuric chloride discharged from it.

Abstract: The present invention provides cystine derivatives, which may be in a free form, a salt form, a solvate form. The cystine derivatives of the present invention may be used to suppress activation of inflammatory factors. Accordingly, the present invention provides: compositions containing the cystine derivatives; a method for suppressing the activation of inflammatory factors by administering the composition; a method for preventing, ameliorating and/or therapeutically treating diseases, skin injuries or disorders involved in the activation of inflammatory factors by administering the composition; a method for preventing, delaying, ameliorating and/or therapeutically treating skin change via aging or aesthetically unfavorable skin change as induced or promoted by inflammatory factors by administering the composition; and pharmaceutical agents containing the cystine derivatives.

Abstract: A prion-physiological structure and associated method of formation. A provided abnormal prion has a transforming power over a normal prion to convert the abnornal prion into defective prion that mimics the abnormal prion. A linker molecule is then bonded to the abnormal prion, wherein a polymer that is covalently attached to the linker molecule facilitates formation of a polymerized abnormal prion that does not have the transforming power over the normal prion.

Abstract: A method for producing alkali metal salts or alkaline earth metal salts of 2,4-dicloro-6-hydroxy-s-triazine, especially the sodium salt, by reacting cyanuric chloride with an alkali hydroxide or alkaline earth hydroxide. 1 to 2.5 Equivalents of alkali hydroxide or alkaline earth hydroxide per mole cyanuric chloride in the form of an aqueous solution or suspension are placed in a receiver and cyanuric chloride in powder form or in the form of an aqueous suspension is added while maintaining a pH in the range of 9.5 to 14 and cooling. If less than a stoichiometric amount is added to the receiver, the remaining amount of alkali hydroxide or alkaline earth hydroxide is added during and/or after the addition of cyanide chloride, while maintaining the pH. The method can be carried out on an industrial scale and formation of the salt of monochlorodihydroxytriazine is largely avoided.

Abstract: A description is given of symmetrical triazine derivatives of formula (1), wherein R1 and R2 are each independently of the other hydrogen; C1-C12alkyl, C1-C12alkoxy; and R3 is C1-C12alkyl; or C1-C12alkoxy. The easily accessible triazine derivatives are suitable for protecting ultraviolet-sensitive materials, in particular skin and hair of humans and animals, from the harmful effects of UV radiation.

Abstract: Compounds of general Formula I ##STR1## wherein R.sup.3 is a saturated, unsaturated, straight- or branched-chain or cyclic aliphatic hydrocarbon residue of up to 16 carbon atoms or, if R.sup.4 is a hydrogen atom, a cycloalkyl group or an aryl or aralkyl group optionally substituted by one or several C.sub.1 -C.sub.6 -dialkylamino groups or by one or several C.sub.1 -C.sub.6 -alkoxy groups,R.sup.4 is a hydrogen atom, a saturated, unsaturated, straight- or branched-chain or cyclic hydrocarbon residue of up to 16 carbon atoms, orR.sup.3 and R.sup.4 jointly mean a saturated or unsaturated 5- or 6-membered ring optionally substituted or containing an O, S, N atom or oxo substituent, and Y is COOX or CONR.sub.3 R.sub.4,are valuable complexing agents, complexes or complex salts, e.g., for use as NMR or X-ray diagnostic image-enhancement agents or radioactive diagnostic agents.

Abstract: A process is described for the production of a suspension of cyanuric chloride in an aqueous liquid, more particularly, water. Molten cyanuric chloride is sprayed using a spray arrangement comprising a spray nozzle immersed in the aqueous liquid. Blockages in the nozzle during the critical start and stop phases are avoided by passing superheated steam through those parts of the spray arrangement which come into contact with the cyanuric chloride melt before and after the spraying process. A particularly reactive cyanuric chloride suspension is obtained by spraying a mixture of cyanuric chloride melt and superheated steam.

Abstract: Process for the reliable and quantitative destruction of the residual cyanuric fluoride which still remains in residues from the cyanuric fluoride preparation by reaction of cyanuric chloride with alkali metal fluorides in dipolar aprotic solvents such as sulfolane, nitrobenzene, or benzonitrile after distillative removal of the majority of cyanuric fluoride; which comprises reacting the residue with an alkali metal hydroxide, bicarbonate or carbonate which is anhydrous apart from any water of crystallization present, or any desired mixture of these compounds, in an amount which is at least equivalent to the residual cyanuric fluoride at temperatures of about 20.degree. to about 180.degree. C.

Abstract: Reactive dyes of the formula ##STR1## are particularly suitable for dyeing or printing cellulosic fibre materials by the exhaust method or by continuous processes and give, with a high color yield, dyeings and prints with good fastness properties, in which D is the radical of a monoazo, polyazo, metal complex azo, anthraquinone, phthalocyanine, formazan, azomethine, dioxazine, phenazine, stilbene, triphenylmethane, xanthene, thioxanthone, nitroaryl, naphthoquinone, pyrenequinone or perylenetetracarbimide dye; R is hydrogen or alkyl having 1 to 4 carbon atoms, which can be substituted by hydroxyl, cyano, carboxyl, sulfo or sulfato; X is fluorine or chlorine; B is a substituted or unsubstituted aliphatic or aromatic bridge member; Y is a substituted or unsubstituted aliphatic, aromatic, araliphatic or heterocyclic radical, which is free from reactive groups; R.sub.2 is hydrogen or alkyl having 1 to 4 carbon atoms, which can be substituted by halogen, hydroxyl, cyano, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.

Abstract: A process for producing a chloroisocyanuric acid compound which comprises reacting cyanuric acid with a chlorinating agent consisting of an aqueous solution of hypochlorous acid substantially free of ionic impurities having a pH of less than about 2. The process produces chloroisocyanuric acid compounds with reduced volumes of effluent solutions and significantly reduced amounts of gas released during operation. The novel process for producing chloroisocyanuric acid compounds can employ solid forms of cyanuric acid as a reactant.

Abstract: Polymeric cationic dyes wherein the same or different monomer components represented by the following formula (1) are linked at the terminal amino groups by a crosslinking agent:H.sub.2 N--A--CH.dbd.CH--B (1)in which A represents a substituted or unsubstituted benzene ring and B represents the radical of a quaternized methylene active compound. The dyes are used in particular for dyeing paper.

Abstract: When trichloroisocyanuric acid is produced by a process which comprises supplying unreacted chlorine from a second reaction zone to a cooled mixture of cyanuric acid and an aqueous alkali solution in a first reaction zone to form a partially chlorinated alkali salt of cyanuric acid, and introducing the reaction product of the first reaction zone and chlorine into the second reaction zone to complete the chlorination of the reaction product from the first reaction zone, the supply of the chlorine into the second reaction zone is so controlled as to ensure that the mixture in the first reaction zone be maintained at a temperature of 5.degree. C. to 20.degree. C. The second reaction zone is advantageously defined by a vertically disposed loop-shaped reactor.

Abstract: An ultraviolet radiation absorbing agent for bonding to an ocular lens, wherein the agent has the formula: ##STR1## wherein A and B are ultraviolet radiation absorbing components which are either identical to or are dissimilar to each other.

Abstract: Dyestuffs of the formula ##STR1## wherein R.sub.1 and R.sub.2 are each hydrogen or C.sub.1 -C.sub.4 -alkyl and R.sub.3 is phenyl substituted with sulpho have the meaning given in the description, and their use for the dyeing and printing of textile materials containing hydroxyl groups and containing nitrogen, especially textile materials consisting of natural and regenerated cellulose, and also those consisting of wool, silk and synthetic polyamide and polyurethane fibers. Dyeings obtained distinguish themselves by good fastness properties and high brilliancy.

Abstract: A support composition based on triazine derivatives is prepared having high binding capacity. The support composition contains a polymer compound having no triazine groups, a polymer compound with 4,6-dihalogen-1,3,5-triazine groups, a 2,4,6-trihalogen-1,3,5-triazine filler component and an alkali metal halogenide filler component. The support is useful in molecular biology particularly for the fixing of biomacromolecules and for clinical and analytical detection of immunologically significant factors or organic or inorganic components of liquids.

Abstract: Chloroisocyanuric acids are made by reacting an aqueous suspension of cyanuric acid while stirring with an alkali metal compound in the presence of chlorine gas between 0.degree. and 40.degree. C. at a pH of less than 7. More particularly, the reaction is effected in a system gastightly sealed with respect to the outside; a chlorine gas atmosphere with pressure of more than 500 millibars is established above the continuously renewed (by agitation) surface of the cyanuric acid suspension, and the pressure is maintained; the alkali metal compound is an alkali metal hydroxide solution which is added to the cyanuric acid suspension at a rate sufficient for the resulting reaction mixture to always present a pH of less than 7.

Abstract: A number of novel amides were found to be highly effective as cockroach repellents.

Abstract: A process is described for concentrating a dilute slurry of s-triazine compounds in a liquid phase which comprises:(a) passing said dilute slurry across an enclosed surface of a porous medium(b) at an elevated pressure(c) and at a flow rate of at least about 8 feet per second, whereby a portion of said liquid phase flows through said porous medium, thereby concentrating said particles in said slurry.

Abstract: A process for producing a sodium compound comprises admixing trichloroisocyanuric acid, cyanuric acid, and sodium bicarbonate to form a homogeneous mixture. The homogeneous mixture is reacted with water and a sodium dichloroisocyanurate compound recovered. The novel process minimizes the cost of raw materials and maximizes the available chlorine present in the reaction mixture.

Abstract: The process and the apparatus according to the invention are used to produce a suspension of cyanuric chloride in water, or to react cyanuric chloride with ammonia or with amines. It is possible to produce cyanuric chloride suspensions in water which have a mean particle size of below 20 .mu.m, and a concentration of higher than 20% by weight of cyanuric chloride.

Abstract: An improved method for reacting a gas with a liquid medium and an improved reactor therefore is described. In this method, gas is fed to the liquid medium in an agitated reactor through a plurality of sparger means which are positioned in the horizontal cross sectional area of the reactor between the reactor perimeter and the central agitator vortex. In addition, the gas spargers are located in separate segments of the cross sectional area. The improved method and reactor are particularly suitable in glass lined reactors which are employed in the preparation of halogenated isocyanurates such as trichloroisocyanuric acid by the chlorination of an aqueous solution of monosodium cyanurate and hypochlorous acid.

Abstract: The present invention provides a process for obtaining solid cyanuric chloride from the cyanuric chloride vapor obtained by trimerizing cyanogen chloride by separating out in a separation chamber, wherein cyanuric chloride vapor and cold air are introduced into the separation chamber through obliquely upwardly directed inlets in such a manner that an intensive mixing up of the cyanuric chloride vapor with the cold air takes place after emergence from the inlet pipes, the cyanuric chloride-free waste gases are withdrawn from the upper part of the separation chamber and the solid cyanuric chloride is removed from the lower part of the separation chamber.

Abstract: The present invention provides a process for obtaining cyanuric chloride in solid and/or liquid form from an optionally contaminated cyanuric chloride vapor, wherein cyanuric chloride, after dilution with an air stream with a temperature of from 60.degree. to 140.degree. C., is introduced into the lower part of a separation chamber cooled to a temperature of from 20.degree. to 50.degree. C., the separated solid cyanuric chloride is optionally converted into liquid form in a melt container at a temperature above 146.degree. C. and the cyanuric chloride vapor, after again diluting with hot air with a temperature of from 50.degree. to 140.degree. C., returned from the melt container into the separation chamber, whereas the cyanuric chloride-free waste gases are withdrawn above the desublimation zone of the separation chamber.

Abstract: Novel, advantageous process for the preparation of free-flowing, coarsely crystalline sodium dichloroisocyanurate dihydrate by reacting dichloroisocyanuric acid and sodium hydroxide, sodium carbonate or sodium bicarbonate in a reaction medium containing 20 to 30 parts by weight of water per 70 to 80 parts by weight of an organic, water-miscible solvent which is inert towards dichloroisocyanuric acid, and removing the organic solvent, together with the free water still present, by drying in vacuo at temperatures from room temperature to 50.degree. C.

Abstract: A process for producing chloro-s-triazine trione with improved crystal properties comprising reacting cyanuric acid, alkali metal hydroxide, and chlorine in water, and crystallizing the resulting chloro-s-triazine trione in the presence of an alpha olefin sulfonate with from 4 to 20 carbon atoms.

Abstract: A process for the production of a polychloroisocyanuric acid filter cake having reduced moisture and salt content leading to quicker drying and a purer product is disclosed. Such a result is achieved by the addition of between about 50 and about 500 ppm of a suitable surfactant wetting agent to the water used to wash the cake after it is filtered from the reaction mass. Preferred surfactant wetting agents are alkoxylated alkyl alcohols and sodium dialkyl sulfosuccinates.

Abstract: A process to manufacture trichloroisocyanuric acid of commercially acceptable size and quality from a mother liquor used to produce an alkali metal salt of dichloroisocyanurate by monitoring and, if necessary, adjusting the mol ratio of available alkalinity to chlorine required to convert all of the triazine compounds in the mother liquor to trichloroisocyanuric acid to be between 1.0 and 1.3 with an alkali metal salt of carbonic acid.

Abstract: There is provided an apparatus for bringing into contact liquids at least one of which is viscous, the apparatus consisting essentially of a tubular container, a first nozzle from introducing a liquid in the upper portion of the container, at least one other nozzle lower than the first nozzle for introducing a different liquid, the tubular container being closeable at the tap thereof and downward from said other nozzle being constricted breast shaped to form a discharge opening, said other nozzles are preferably of polished steel, said other nozzles consist essentially of at least one tangential spray means arranged in at least one row, said other nozzles being slightly above said constriction and being directed in the direction of the upper closeable device or said first nozzle and wherein the discharge opening can discharge into another container which is permanently or detachably connected to the tubular container, said further container can be provided with means for establishing reduced pressure or super

Abstract: Hydrated alkali metal dichloroisocyanurate particles are prepared in a process which comprises, in a first step, spraying droplets of an aqueous slurry of alkali metal dichloroisocyanurate into an evaporation zone fed with a moving stream of heated gas to evaporate water from the droplets and form dry porous solid spherical particles of hydrated sodium dichloroisocyanurate. In a second step, the dry particles are fluidized in a cooling gas until cooled to a temperature below about 50.degree. C. The resulting porous hydrated particles have a uniform distribution of hydration, are dust-free, and quickly dissolve in water.

Abstract: Solid cyanuric chloride is supplied to the gas space of a cyanuric chloride melt with the help of a gas tight product stopper. Preferably there is used for this a screw conveyor in which the gas tight stopper is formed at the end of the screw conveyor; it is most favorable if the helix ends before the last section of the tube of the screw conveyor.

Abstract: ((Mono-trichloro)-tetra-(monopotassium-dichloro))-penta-isocyanurate is produced from cyanuric chloride in an electrolytic process by reacting it at the anode in an aqueous medium containing potassium ions under the influence of a direct current voltage.

Abstract: Sodium dichloro s-triazine trione compositions can be prepared in high yields with essentially no waste disposal requirements, without need for refrigeration, with ease of process control and surprisingly low generation of hazardous byproduct nitrogen trichloride by chlorinating a sodium s-triazine trione in an aqueous mixture wherein the triazine compounds are essentially completely in the liquid phase and the amount of water is below about 65%.

Abstract: Salts of dihalogenated isocyanurates are prepared by reacting amino substituted triazines with at least stoichiometric amounts of a halogen containing compound at a temperature of 35.degree. to 70.degree. C. and at a pH value of 6.5 to 11.0 until all of the available sites on the triazine molecule are N-halogenated and N, N-dihalogenated exocyclic nitrogen is removed.

Abstract: Suspension or solutions of cyanuric chloride in water containing organic solvents are prepared at high mixing velocities and low temperatures with resulting low degree of hydrolysis by introducing liquid cyanuric chloride through a nozzle in the upper portion of the mixing apparatus in countercurrent flow to upwardly flowing solvent introduced from at least one lower nozzle above a breast shaped constriction in the lower, open portion of the apparatus. In this way the chamber walls are always covered with an unbroken layer of liquid. The process can be carried out at normal, reduced or elevated pressure. At reduced pressure by evaporation of the solvent there is simultaneously a cooling of the system.

Abstract: Suspension or solutions of cyanuric chloride in water are prepared at high mixing velocities and low temperatures with resulting low degree of hydrolysis by introducing liquid cyanuric chloride through a nozzle in the upper portion of the mixing apparatus in countercurrent flow to upwardly flowing water introduced from at least one lower nozzle above a breast shaped constriction in the lower, open portion of the apparatus. In this way the chamber walls are always covered with an unbroken layer of liquid. The process can be carried out at normal, reduced or elevated pressure. At reduced pressure by evaporation of the water there is simultaneously a cooling of the system.

Abstract: Finely divided suspensions of cyanuric chloride in organic solvents which are practically water free are prepared at high mixing velocities and low temperatures by introducing liquid cyanuric chloride through a nozzle in the upper portion of the mixing apparatus in countercurrent flow to upwardly flowing solvent introduced from at least one lower nozzle above a breast shaped constriction in the lower open portion of the apparatus. In this way the chamber walls are always covered with an unbroken layer of liquid. The process can be carried out at normal, reduced or elevated pressure. At reduced pressure by evaporation of the solvent there is simultaneously a cooling of the system.

Abstract: The invention provides a continuous process for the production of chlorocyanuric acids by the reaction of di- and/or tri-sodiumcyanurate with chlorine in which the reaction mixture is stirred to achieve improved crystal size of the product.

Abstract: Solid cyanuric chloride is recovered by a process of spraying liquid cyanuric chloride which preferably is freed from chlorine and cyanogen chloride to the maximum extent possible, the cyanuric chloride is sprayed with the aid of known spraying apparatus into a separation container and solidified by indirect cooling.

Abstract: A process for the production of polychloroisocyanuric acids in which a depressant is added to the reaction mixture. The polychloroisocyanuric acid particles produced have improved filterability and the formation of foam during the reaction is greatly reduced. Depressants employed are alkali metal salts of alkyl esters or sulfonated alkyl esters of dicarboxylic acids or ethylene oxide terminated alkoxylated alcohols having a cloud point of up to about 50.degree. C.

Abstract: Solid cyanuric chloride is recovered by a process of spraying in the presence of a cooling medium liquid cyanuric chloride which preferably is freed from chlorine and cyanogen chloride, the cyanuric chloride is sprayed with the aid of known spraying apparatus into a separation container optionally with a propellant, while simultaneously with the cyanuric chloride spraying a liquid cooling medium through a second spraying apparatus separate from the first spraying apparatus, withdrawing the solidified cyanuric chloride from the separatory container and drawing off the resulting now gaseous cooling medium containing cyanuric chloride from the lower portion of the separatory container.

Abstract: Alkali metal dichloroisocyanurates are instantly and quantitatively prepared by reacting cyanuric acid with an alkali metal hypochlorite in an aqueous reaction medium having a cyanuric acid to alkali metal hypochlorite mole ratio of 1:2.0 to 2.2, a pH value of 6.5 to 11.0 and a temperature from 10.degree. C. to 55.degree. C.

Abstract: A stable, free-flowing sodium dichloroisocyanurate dihydrate powder is prepared by spray drying an aqueous solution or slurry of sodium dichloroisocyanurate to form a particulate product having a moisture content from about 12.0 to about 20.0% by weight and subjecting this product to specific stabilizing and cooling after-treatment steps in a plurality of fluidized and/or vibrating beds. During the stabilizing step the product is dried to the final moisture level, if necessary, and the water of hydration is uniformly distributed and firmly bound to the particulate product.

Abstract: Decomposition of chloroisocyanurates such as trichloroisocyanuric acid or alkali metal dichloroisocyanurates is inhibited by the presence of alkaline earth metal sulfates. The sulfates may be used in compositions with a solid chloroisocyanurate or they may be added separately, for example, to packages containing the chloroisocyanurate.

Abstract: Alkali metal dichloroisocyanurate compositions having improved resistance to thermal decomposition comprise an alkali metal dichloroisocyanurate and a proportion of an alkali metal chloride where the proportion is from about 6 to about 14 percent by weight of the alkali metal dichloroisocyanurate. Water may be used to replace part of the alkali metal chloride proportion.The compositions are suitable for use in bleaching and sanitizing applications.

Abstract: A process for recovering chlorine values from an aqueous solution of a chloroisocyanuric acid compound is disclosed. After reacting a mineral acid with the aqueous solution to form an acidified reaction mixture containing dissolved chlorine, the reaction mixture is fed to a stripping column which employs an inert gas to remove the dissolved chlorine. The stripping column is maintained to provide a continuous liquid phase and a non-continuous gas phase. Chlorine gas is readily recovered in a vessel such as a scrubber. Cyanuric acid may be subsequently recovered from the chlorine-depleted solution.

Abstract: In a process for making chlorine electrolytically in which a build-up of nitrogen trichloride occurs in the bottoms of cooling apparatus, a method and apparatus is provided wherein the nitrogen trichloride is dissolved in an organic solvent such as carbon tetrachloride, the chlorine removed, and the solution treated to destroy the otherwise hazardous nitrogen trichloride. The solvent is then separated and recycled to avoid environmentally undesirable waste products.