Abstract: The present trolley is suitable for accommodating and conveying containers and apparatus for the commercial cleaning and disinfecting of floors and other surfaces, and as a collector for valuable substances and for other tasks involved in the commercial cleaning of buildings. The trolley has a base plate and substantially vertically aligned uprights. The base plate comprises at least one downwardly projecting shaft which is suitable for accommodating the uprights, and is additionally connected by struts to the underside of the base plate. The danger of breakage at the points where the uprights are secured to the base plate is considerably reduced.

Abstract: An ester blend, including an ester having neopentylglycol and a source of 2-ethylhexanoic acid as its reactive components and an ester having pentaerythritol and a source of 2-ethylhexanoic acid as its reactive components, is especially effective as a lubricant for chlorine-free fluorocarbon refrigerant heat transfer fluids, particularly Refrigerant 134a (1,1,1,2-tetrafluoroethane).

Abstract: A Process for Joining Plastic Moldings Plastic moldings can be joined with one-component or two-component adhesives, the connecting joint being spanned by metal strips. The metal strips are at least partly embedded in the adhesive layer. This process is particularly suitable for repairing damaged plastic moldings, more particularly automobile parts, for example fenders. The moldings repaired by the process according to the invention are restored to their original performance properties, more particularly dimensional rigidity, impact strength and appearance. In the event of scrapping, the moldings thus repaired are fully recyclable by conventional methods.

Abstract: Compositions containing p-dinitrosobenzene deposited onto a support of a chemically inert material which is solid at room temperature are provided. The composition is preferably formed by depositing p-dinitrosobenzene from a solution or by sublimation or in the course of its synthesis in the presence of one or more supports. Hydrophilic or hydrophobic silica, hydrophobicized zeolites, carbon blacks and layer silicates are examples of supports. The composition is useful in the production of adhesives, more particularly for bonding elastomers, e.g. in the polymerization or crosslinking of elastomers, and even more particularly in the bonding of rubber to metal.

Abstract: A process for the recovery of nickel from a nickel containing ore in which the ore, particularly a laterite ore, is initially leached with an aqueous acid solution, after which the nickel is precipitated as nickel hydroxide by adding a hydroxide to the aqueous acid leach solution containing the nickel, followed by a re-leaching of the nickel with an aqueous ammoniacal solution and recovery of the nickel by a solvent extraction of the nickel from the aqueous ammoniacal solution with an organic phase of a water insoluble oxime extractant dissolved in a water-immiscible hydrocarbon solvent and the nickel recovered by electrowinning the nickel from the aqueous acid stripping solution employed to strip the nickel from the organic phase.

Abstract: A process for phosphating metal surfaces by treatment with an acidic zinc- and phosphathe-containing solution which does not require rinsing. The metal substrate is contacted with a phosphating solution containing 2 to 25 g/l of zinc ions, 2 to 25 g/l of manganese ions and 50 to 300 g/l of phosphate ions. The solution has a pH value of 1 to 3.6, a free acid content of 0 to 100 points, a total acid content of 40 to 400 points and a ratio of free acid to total acid of 1:4 to 1:20.

Abstract: Described is a moisture-curing sealing and bonding compound made from completely synthetic polymers, the compound containing, to improve its non-sag properties, a triglyceride, either as the sole non-sag agent or in addition to prior art agents. The triglyceride should have a melting point over 40.degree. C., preferably over 50.degree. C., and be derived from saturated fatty acids with 8 to 26 C-atoms. Even without using thixotropic agents, compounds can be obtained which do not sag at temperatures over 40.degree. C. Such joint sealants can be used to fill joints more than 35 mm wide without sagging.

Abstract: A process is presented for producing stable multi-enzyme containing granules. The process involves the steps of mixing a reversible competitive inhibitor with a first enzyme, adding a second incompatible enzyme, adding a carrier, extruding and granulating the resulting mixture and reducing the moisture content if necessary.

Abstract: Pure azelaic acid is obtained by working up a reaction mixture containing C.sub.1-18 monocarboxylic acids, mainly pelargonic acid, and C.sub.4-16 dicarboxylic acids, mainly azelaic acid, obtained from the ozonolysis of oleic acid or a starting mixture containing oleic acid. All but <2% by weight of the monocarboxylic acids and part of the dicarboxylic acids with a chain length of <C.sub.9 and >C.sub.9 are separated off to obtain a prepurified product containing more than 75% by weight of oleic acid and the prepurified product is concentrated to more than 90% by weight of oleic acid in several process steps. In a first process step (1), the dicarboxylic acids with chain lengths of <C.sub.9 present in the prepurified product are removed as first runnings by fractional distillation. In a second process step (2), the bottom product obtained is reacted with water to split carboxylic anhydrides present in the bottom product.

Abstract: A process of bonding a plastic is provided. The process comprises applying to a plastic surface an aqueous dispersion of a hydroxyl-functional polyurethane prepolymer obtained by:(1) reaction of:a polyol component containing a polyester polyol,a compound selected from the group of compounds containing groups capable of salt formation and at least two isocyanate-reactive groups,an isocyanate component in a stoichiometric excess, at least 20% by weight of said component consisting of tetramethyl xylylene diisocyanate, and(2) subsequent dispersion in water and at least partial reaction of the remaining NCO groups with an aminoalcohol and, optionally, subsequent chain extension. The process further comprises drying said applied aqueous dispersion to form a primer and bonding said plastic surface having said primer to a part to be joined thereto. The process is particularly useful for priming plastics such as polyvinyl chloride.

Abstract: The pot life of a polyurethane composition is increased by providing a composition containing a polyisocyanate, polyol, highly dispersed silica, and a filler wherein at least a portion of the filler is coated.

Abstract: A process for pressure splitting glycerides into fatty acids and glycerols involving the steps of: (a) providing a glyceride feedstock; (b) providing a hydrolytic lipase enzyme; (c) providing an alkaline earth metal selected from the group consisting of calcium, magnesium, and mixtures thereof; (d) mixing components (a)-(c) in the presence of water and with agitation, at a temperature ranging from about 50 to about 60.degree. C. to form a partially hydrolyzed glyceride feedstock; (e) introducing the partially hydrolyzed glyceride feedstock into a pressure splitter; and (f) splitting the partially hydrolyzed glyceride feedstock in the pressure splitter into carboxylic acids and glycerols.

Abstract: A process for making a phenolic ketone involving reacting a metal aryloxide with an aliphatic aldehyde having from at least 2 to about 25 carbon atoms.

Abstract: Toxic cyanide and anionic metal species are removed from aqueous alkaline solutions by contacting the aqueous alkaline solutions with an extractant compound which is capable of being protonated at a pH of 9 or above. Whereby the anionic metal species is extracted from the aqueous alkaline solution, subsequently stripping the metal values from the extractant and recovering the metal species, preferably by electrowinning. The process is useful in a flotation process in which a recycled aqueous process stream is employed in that the toxic cyanide ion and anionic metal species are removed prior to recycling of the aqueous process stream for flotation.

Abstract: A deodorant composition containing: (a) a cationic biopolymer; (b) an aluminum chlorohydrate; and (c) an esterase inhibitor.

Abstract: This invention relates to a process comprising the steps of contacting a metal surface with an aqueous composition comprising water and specific amounts by weight of phosphate ions, condensed phosphate ions and water soluble polymer molecules of a specific general formula, separating the contacted metal surface from the aqueous composition, rinsing with water and heating.

Abstract: The hotmelt adhesive according to the invention containsA) at least one polyurethane prepolymer ofa) at least one polyisocyanate, more particularly toluene diisocyanate and/or MDI,b) at least one polyalkylene glycol in a concentration of more than 10% by weight, based on the hotmelt adhesive as a whole, more particularly polypropylene glycol,c) at least one polyester glycol, preferably at least two polyester glycols with different glass transition temperatures andd) at least one chain extender andB) optionally additives, such ase) a resin, more particularly a hydrocarbon resin, andf) a stabilizer, more particularly toluene sulfonyl isocyanate.The hotmelt adhesive preferably has a melt viscosity of 4 to 100 Pa.cndot.s at 170.degree. C. The PU prepolymer has only one Tg in the DSC curve. The hotmelt adhesive is distinguished by high creep resistance and high early and ultimate strengths.

Abstract: A plastisol composition containing plasticizers, fillers and styrene copolymers selected from (a) styrene, .alpha.-methyl styrene and p-methyl styrene, and (b) 3 to 20% by weight, based on the weight of the styrene copolymers, of a comonomer selected from methacrylic acid, acrylic acid and itaconic acid, and optionally (c) a crosslinking comonomer, wherein the maximum of the molecular weight distribution of said copolymers is greater than 1 million as determined by gel permeation chromatography.

Abstract: A container for a free-flowing product, in particular a correcting fluid, has an opening provided with a removable closure cap with an integrated brush-shaped applicator. A sleeve-shaped stripper is positioned in the opening and includes stripping strips whose ends are elastically supported against each other and at least partially close the open cross section of the stripper. Product is perfectly dosed from the container even over a long time and losses of the volatile fraction of the product in the container are largely avoided when opening the container and removing product therefrom, via a brush-shaped applicator provided in the area of its stem with a continuous notch in which the free ends of the stripping strips are engaged when the closure cap is installed on the container.

Abstract: The invention relates to new cationic biopolymers with an average molecular weight of 800,000 to 1,200,000 Dalton, a Brookfield viscosity (1% by weight in glycolic acid) below 5,000 mPas, a degree of deacetylation of 80 to 88% and an ash content of less than 0.3% by weight which are obtained by repeatedly subjecting crustacean shells to alternate acidic and alkaline degradation under defined conditions. Compared with known cationic biopolymers of the chitosan type, the new biopolymers form clear solutions and, at the same time, show excellent film-forming properties, despite their high molecular weight.