Abstract: A composition for coloring keratin-containing fibers containing:(a) at least one isatin derivative corresponding to formula I: ##STR1## wherein R.sup.1 can represent hydrogen, a C.sub.1-4 alkyl group, a C.sub.2-4 hydroxyalkyl group, a C.sub.2-20 acyl group, a phenyl group, and a benzoyl group, and R.sup.2, R.sup.3, R.sup.4 and R.sup.5 independently of one another can represent hydrogen, hydroxy, halogen, nitro groups, sulfo groups, carboxyl groups, C.sub.1-4 alkyl groups, C.sub.1-4 alkoxy groups or NR.sup.6 R.sup.7 groups and where R.sup.6 and R.sup.7 independently of one another represent hydrogen, C.sub.1-4 alkyl groups or C.sub.2-4 hydroxyalkyl groups, and wherein two adjacent groups R.sup.3, R.sup.4 and R.sup.

Abstract: A polyalkylene glycol having the general formula:HO--[R--O--].sub.n Hin which n has a value of at least 2 and R is an alkylene radical containing at least 20 carbon atoms is provided. Preferred polyalkylene glycols have an alkylene radical which is a branched alkylene radical containing at least 10 carbon atoms in the main chain and a degree of polymerization such that n is from 4 to 7. The polyalkylene glycol is prepared by the acid-catalyzed polycondensation of a monomeric alkylene glycol at elevated temperature.

Abstract: Starting from a mixture containing tocopherol, fats and/or fat derivatives, more particularly fatty acids, and optionally sterol and/or sterol derivatives, the free fatty acids present in the mixture are esterified with an alcohol. The mixture is then transesterified with an alcohol in the presence of a basic catalyst. After the transesterification, the excess lower alcohol is distilled off from the reaction mixture. The transesterification catalyst and the glycerol present, if any, are removed and the fatty acid alkyl ester is distilled off from the mixture. Distillation of fatty acid alkyl esters can be accomplished with a packed column in sequence with a wiped film evaporator. The simultaneous recovery of tocopherol and sterol is possible. Tocopherols and sterols can be separated by the crystallization of sterols from a blend of organic solvents.

Abstract: A process for controlling the deposition of stickies from paper stock suspensions in papermaking involving the steps of: (a) providing a paper stock suspension containing stickies; and (b) contacting the stickies in the paper stock suspension with a native starch.

Abstract: A process for coloring keratin-containing fibers by contacting the fibers with a composition containing an isatin derivative corresponding to formula I: ##STR1## wherein R.sup.1 is hydrogen, a C.sub.1-4 alkyl group, a C.sub.2-4 hydroxyalkyl group, a C.sub.2-20 acyl group, a benzyl or phenyl group, R.sup.2 is hydrogen, a C.sub.1-4 alkyl group, a C.sub.1-4 alkoxy group, a hydroxy, halogen or nitro group, X is a sulfo group --SO.sub.3 H or a carboxyl group --COOH and n is an integer from 0 to 3, including water-soluble salts thereof.

Abstract: Light-colored alkyl oligoglycoside pastes can be obtained by a process in whicha) glycose is reacted with fatty alcohols in the presence of acidic catalysts at elevated temperature to a residual content of glycose of less than 0.1% by weight, based on the starting quantity of glycose,b) water of reaction released is continuously removed from the equilibrium,c) the reaction products are neutralized with a base, the molar ratio of hydrogen ions in the reaction mixture to added base being from 1:1 to 1:1.5,d) unreacted fatty alcohols is separated by distillation,e) the residue is subsequently processed by addition of water to a paste having a solids content of 30 to 70% by weight, based on the paste, the paste is alkalized and, optionally, bleached by methods known per se.

Abstract: A process for sizing natural and synthetic yarns by contacting the yarns with a sizing agent containing alkali metal salts of carboxymethyl guar galactomannan having degrees of substitution below 0.15.

Abstract: The invention concerns the use of combinations of active substances, consisting of (a) a cationic derivative of a protein hydrolyzate and (b) a carbohydrate and/or (c) a cationic, anionic or ampholytic polymer, in hair-cleaning and hair-care agents, thus improving the qualities of the hair, in particular its brittleness and its ease of combing when dry.

Abstract: Wastepaper containing printing ink is refined in the presence of the reaction products of epoxidized derivatives of C.sub.10 -C.sub.22 carboxylic acids with alkoxylated carbohydrate-derived polyols and the detached printing ink particles are subsequently removed from the paper stock suspensions by flotation or washing.

Abstract: A process for modifying polymers containing carboxyl, hydroxyl and/or phenolic hydroxyl groups. In the process, the polymers are reacted with a delta.sup.2 mono- or bis-oxazoline, each substituted in the 2-position by an optionally substituted alkyl or alkenyl group containing from 7 to 23 carbon atoms. The modified polymers show reduced melt viscosities, lower adhesion and better slip characteristics than unmodified polymers.

Abstract: An oxidation dye composition for keratin fibers containing component A and component B wherein component A is an oxidation dye precursor indoline derivative of the formula I: ##STR1## wherein each of R.sup.1, R.sup.2, R.sup.3 is hydrogen or an alkyl group having from 1 to 4 carbon atoms; each of R.sup.4 and R.sup.5 is hydrogen or an alkyl group having from 1 to 4 carbon atoms or together with the oxygen atom to which they are attached represent an alkylenedioxy group containing 1 to 4 carbon atoms; or a salt thereof; and wherein component B is a metal salt having a non-oxidizing anion selected from the group consisting of a lithium, magnesium, calcium, aluminum and a zinc salt.

Abstract: Described are acidic hair care agents containing quaternary fatty acid trialkanolamine ester salts of formula (I): ##STR1## in which R.sup.1 CO is a linear or branched aliphatic acylradical containing 6 to 22 carbon atoms and 0 or 1 double bond, {Z} is an ethylene, propylene or isopropylene group and X is chloride, bromide, sulfate, methosulfate or phosphate. Such agents improve hair combability, have antistatic properties, arc easy to rinse out, impart an agreeable feel and have very little polluting action.

Abstract: Apparatus for transferring liquid from a first tank to a second tank having supply line coupled to the first tank, a fill line connected to the second tank, a return line leading to the first tank or a sump, a pump for causing liquid to flow from the supply line to the fill line when the apparatus is in a fill mode, from the fill line to the return line when the apparatus is in a purge mode, and a programmable control for placing the apparatus in a purge mode in response to any one of the following signals, a signal indicating that the fill line is not properly attached to the second tank, a signal indicating that the liquid in the second tank has reached a given level, and a signal that the volume of liquid delivered by the pump is that which will fill the second tank to the given level. The programmable control detects leaks and checks whether the rate at which the pump delivers liquid is within a given range.

Abstract: The invention is a process and an apparatus for removing metal contamination from soil. In the method, the soil is treated to produce soil with a small particle size. The particulate soil is then separated into a coarse fraction and a fine fraction. The coarse fraction and the fine fraction are contacted with a leach solution in separate contacting zones to remove the metal contamination from the soil, the metal is removed from the leach solution and the leach solution recycled to the leaching zones.

Abstract: A composition and process for enhancing the aesthetic and tactile properties of an alkyl polyglycoside involving combining a first alkyl polyglycoside having the general formula I:RO(Z).sub.a (I)wherein R is a monovalent organic radical having from about 8 to about 18 carbon atoms; Z is a saccharide residue having 5 or 6 carbon atoms; and a is a number having a value from about 1 to about 6, with an additive selected from the group consisting of C.sub.6 -C.sub.10 alkyl sulfates, unsaturated aliphatic carboxylic acids including hydroxy-substituted derivatives thereof or their salts, unsaturated aliphatic sorbitan esters, C.sub.8 -C.sub.36 branched aliphatic dicarboxylic acids, C.sub.6 -C.sub.

Abstract: A toothpaste containing typical components and a combination of silicas and dicalcium phosphate dihydrate (brushite) as its polishing component provides for particularly good restoration of the surface of teeth. This is achieved by controlled remineralization, particularly in scratch marks and dentinal canals. The effect can be enhanced by addition of magnesium ions and/or fluorophosphate ions.

Abstract: A self-dispersing curable epoxy composition is prepared upon contacting (a) 1.0 reactive equivalents of an epoxy resin, (b) between 0.005 and 0.5 reactive equivalents of an amine-epoxy adduct, and optionally (c) from about 0.01 to 1.0 reactive equivalents of a polyhydric phenol, wherein the amine-epoxy adduct is formed upon contacting 1.0 equivalents of an aliphatic polyepoxide and greater than 1.0 but no more than about 2.5 reactive equivalents of a polyoxyalkyleneamine. The self-dispersing curable epoxy resin forms an aqueous dispersion upon mixing with water. When cured, the dispersion is useful as a coating composition.

Abstract: A bath for the treatment of DI cans that contains phosphate ions, at least one of zirconium and titanium compounds, oxidizing agent at no more than 500 ppm, and fluorides at no more than 2,000 ppm as fluorine, and that has a pH of 2.0 to 4.0, is useful for treating the surface of both aluminum and tinplate cans prior to the painting/printing thereof.

Abstract: Described is the chemical hydrolysis of partial hydrolysates obtained by the enzymatic decomposition, in aqueous conditions in the presence of alkaline-earth oxides or hydroxides, of protein-containing raw materials containing chromium. This enables protein hydrolysates with a particularly low chromium content to be obtained which are stable to turbidity during storage. The chemical hydrolysis must be carried out in the presence of compounds selected from the alkaline-earth oxides and hydroxides, and within the critical pH range of 11 to 13.

Abstract: The invention relates to the use of aminoalkanolamide esters as processing aids, more particularly as lubricants and/or mold release agents, for thermoplastics.