Abstract: Process for making an alkyl-substituted salicylaldehyde wherein the alkyl substitution amounts to at least 8 alkyl carbon atoms per molecule, and preferably not more than 25, comprising ozonolizing an alkyl-substituted 2-hydroxy beta-methylstyrene wherein said alkyl substitution amounts to at least 8 carbon atoms per molecule. Upon oximation of the products, useful metal extractants are produced, particularly for the extraction of copper.
Abstract: A surfactant composition having enhanced gloss retention properties containing from about 0.001 to about 3.0% by weight, based on the weight of the composition, of a gloss retention aid consisting of xanthan gum.
Abstract: A device for sealing the gap or void between the outer circumference of a pipe and a hole in a wall the pipe passes through includes a sheet metal casing flexible enough to be bent around the pipe. The inside wall of the casing includes spaced apart inner directed radial projections for containing a swelling agent that is heat activated for filling the void between the housing and pipe in a manner overlapping the gap between the pipe and the wall.
Abstract: An installation for lubricating, cleaning and/or disinfecting conveyor belts for containers, more particularly for foods, such as bottles, glasses, cans, bags and the like, comprising a central metering station connectable to a water pipe used to dilute a concentrated lubricant, cleaner or disinfectant, and several distributing pipes connected to the metering station lead to the points of use. At each point of use there is a mixing valve (13-19) connectable to distribution line (52) and the water pipe (23) and individually adjustable for each point of use and a pressure reducer (50, 51) fitted upstream of each mixing valve. Varying concentration can be provided for each point of use (31-37) with little technical complexity. In another embodiment, the invention is the process carried out by the installation.
Abstract: More nearly consistent quality of the coatings formed by contacting a zinciferous surface with an aqueous liquid treatment composition comprising water, transition metal cations, and fluorometallate anions, and, optionally, acidity adjustment agents can be achieved by (I) measuring the pH value of and the concentrations of transition metal cations and of fluorometallate anions in the treatment composition as it is used, (II) removing a specified fraction of the treatment composition from contact with the remainder of the treatment composition, and (III) adding one or more suitable replenisher compositions to the treatment composition, in order to maintain the measured pH and concentration values within specified ranges.
Abstract: There is disclosed a self-dispersing curable epoxy resin composition comprising the addition product of reactants comprising (a) 1.0 reactive equivalent of an epoxy resin, (b) from about 0.40 to 0.95 reactive equivalents of a polyhydric phenol, and (c) from about 0.005 to 0.5 reactive equivalents of an amine-epoxy adduct comprising the addition product of reactants comprising 1.0 reactive equivalent of a polyepoxide and from about 0.3 to 0.9 reactive equivalents of a polyoxyalkyleneamine with the structural formulaH.sub.2 N--CH(R.sub.2)CH.sub.2 --O--R.sub.1 --CH.sub.2 CH(R.sub.2)--NH.sub. 2wherein:R.sub.1 represents a polyoxyalkylene chain having the structural formula:(CH.sub.2 --CH.sub.2 --O).sub.a --(CH.sub.2 --CH(R.sub.3)--O).sub.bwherein:R.sub.3 is a monovalent organic radical selected from the group consisting of C.sub.1 to C.sub.4 aliphatic hydrocarbons,`a` designates a number of ethoxy groups (CH.sub.2 --CH.sub.2 --O),`b` designates a number of monosubstituted ethoxy groups (CH.sub.2 --CH(R.sub.
Type:
Grant
Filed:
October 30, 1996
Date of Patent:
February 23, 1999
Assignee:
Henkel Corporation
Inventors:
Kartar S. Arora, John G. Papalos, Grannis S. Johnson
Abstract: An improved, optimized industrial process has been found for the hydrogenation of organic nitrites into primary amines, which essentially consists of contacting a dried charge of at least one organic nitrile, aqueous alkali metal hydroxide, at least one Raney slurry hydrogenation catalyst, water and hydrogen for an effective time and at an effective temperature and pressure, wherein the improvements comprise eliminating the steps of drying the charge and adding water and reducing the required water to about 0.2%. Secondary and tertiary amine formation is low, as is moisture content and neither precious metals such as rhodium, nor strategic metals, such as cobalt nor ammonia gas nor solvents are required. Surprisingly, it has been found that water levels less than that taught in the prior art are effective at suppressing secondary and tertiary amine production, while still producing repeatable product on an industrial scale and with reduced cycle time, energy and catalyst charge.
Abstract: A pump for metering liquids out of a tank into a delivery line, includes, fitted on the output side, an air-purge device which is designed to separate off gas, in particular air, entrained by the pressurized liquid being conveyed and to lead the gas away into a gas-collection space which is at a pressure lower than that of the liquid. In order to ensure reliable purging, even with corrosive liquids, the pump is designed so that the purging device has a semipermeable membrane, on one side of which the pressurized liquid acts, the other side being in direct contact with the gas-collection space.
Abstract: An emulsifier composition containing: (a) from about 7 to about 15% by weight of an alkyl polyglycoside of formula I:R.sub.1 O(R.sub.2 O).sub.b (Z).sub.a (I)wherein R.sub.1 is a monovalent organic radical having from about 6 to about 30 carbon atoms; R.sub.2 is a divalent alkylene radical having from 2 to 4 carbon atoms; Z is a saccharide residue having 5 or 6 carbon atoms; b is a number having a value from 0 to about 12; a is a number having a value from 1 to about 6; (b) from about 9 to about 17% by weight of an alkoxylated linear alcohol; (c) from about 11 to about 19% by weight of linear alkyl sulfonate; (d) from about 1 to about 5% by weight of a monoethanolamine; and (e) remainder, water, all weights being based on the total weight of the composition.
Abstract: The invention relates to the use of at least predominantly linear hydrocarbon compounds olefinically unsaturated in the alpha-position with flashpoints of at least about 80.degree. as the oil phase or as part of the oil phase of oil- or water-based free-flowing borehole servicing preparations. Particular significance is attributed to corresponding drilling fluids which, together with the alpha-olefins, contain other oil phases from the field of borehole servicing preparations and are distinguished by ecological compatibility, being degradable under both aerobic and anaerobic conditions. Suitable mixture components for the oil phase are, in particular, oleophilic alcohols, ethers and corresponding esters selected from carboxylic acid esters and/or carbonic acid esters.
Type:
Grant
Filed:
December 13, 1996
Date of Patent:
February 9, 1999
Assignee:
Henkel Kommanditgesellschaft auf Aktien
Inventors:
Heinz Mueller, Claus-Peter Herold, Matthias Fies, Stephan Von Tapavicza
Abstract: Esterquats based on natural fats and oils can be directly produced by subjecting fatty acid glyerine ester to ester interchange, in the presence of alkaline and/or alkaline earth boron hydrides and hypophosphoric acid or their alkaline and/or alkaline earth salts and possibly free fatty acid, with hydroxy-functionalised tertiary amines and quaternising the resultant products in the manner known per se.
Type:
Grant
Filed:
September 16, 1996
Date of Patent:
February 9, 1999
Assignee:
Henkel Kommanditgesellschaft auf Aktien
Inventors:
Rafael Pi Subirana, Joaquim Bigorra Llosas, Antonio Trius Oliva
Abstract: A composition for thickening aqueous based personal care products is comprised of a cosolvent selected from the group consisting of a diol, the mono alkyl ether of a diol, a salt of a sulfated ethoxylated alcohol, a salt of a sulfated ethoxylated alkyl phenol, and a complex organic phosphate ester; water; a nonionic surfactant and, a complex ester.
Type:
Grant
Filed:
June 18, 1996
Date of Patent:
February 9, 1999
Assignee:
Henkel Corporation
Inventors:
Stephen A. Fischer, Kartar S. Arora, Reuben Grinstein, Patrick M. McCurry, Jr., Judith C. Giordan
Abstract: Described is a process using a no-rinse technique for the production of a chromium-free conversion layer on the surface of aluminum and its alloys by treating with an aqueous solution having a pH between 1 and 3.5 and containing titanium and/or zirconium plus an organic film-forming agent. The process is characterized in that the surface is brought into contact with a solution containing a) 2.2 to 22.0 g/l of Zr(IV) and/or 1.4 to 14.0 g/l of Ti(IV), b) 2.4 to 24.0 g/l of orthophosphate, c) 3.0 to 30.0 g/l of fluoride, d) 0.15 to 1.5 g/l of a water-soluble or homogeneously water-dispersible organic film former and, after a contact time between 1 and 40 seconds, the wet surface is allowed to dry, without rinsing, at a temperature between 50.degree. and 125.degree. C. Also described are aqueous concentrates for use in the process.
Abstract: A process for producing detergent tablets containing more than 10% by weight of anionic surfactant wherein the detergent tablets contain detergent components which are at least partly in hydrated form and the anionic surfactant is present in the form of one or more compounds containing up to 95% by weight of surfactants, by exposing a mixture of the detergent components and the anionic surfactant to microwaves in the frequency range from 3 to 300,000 MHz.
Abstract: Liquid compounds useful as laundry detergents, dishwashing detergents and cleaning formulations are made by mixing (a) an alkyl and/or alkenyl oligoglycoside and (b) an alkyl polyalkylene glycol ether in the absence of water in a weight ratio of (a) to (b) of 10:90 to 90:10.
Abstract: Water-in-oil emulsions of preferably polar oils are prepared by adding as emulsifiers or stabilizers 0.1 to 10% to weight, relative to the oil phase, of block polyesters of the general formula (I) R.sup.1 CO--(OR.sup.2 CO)y--(OC.sub.2 H.sub.4)--O--(COR.sup.2 O)z--COR.sup.1, in which R.sup.1 CO is an acyl group with 1-22 C-atoms or a hydroxyacyl group derived from a fatty acid with 16-22 C-atoms or a hydroxyacyl group (OR.sup.2 CO) derived from a fatty acid with 16-22 C-atoms, x is a number from 5 to 150 and y and z are numbers from 2 to 75, the group (OC.sub.2 H.sub.4) x making up 10 to 20% by weight of the total molecular weight.
Type:
Grant
Filed:
July 30, 1997
Date of Patent:
January 26, 1999
Assignee:
Henkel Kommanditgesellschaft auf Aktien
Inventors:
Achim Ansmann, Joachim Conradi, Rolf Kawa, Ludwig Schieferstein
Abstract: An aqueous composition for the post-treatment of washed laundry containing 0.1 to 30% by weight of a water-insoluble quaternary ammonium compound, 0.1 to 50% by weight of a water-soluble quaternary ammonium compound, 0 to 5% by weight of a terpene compound, 0.1 to 20% by weight of a water-soluble acid, and 0.1 to 20% by weight of an emulsifier.
Type:
Grant
Filed:
May 5, 1997
Date of Patent:
January 19, 1999
Assignee:
Henkel-Ecolab GmbH & Co. OHG
Inventors:
Anneliese Wilsch-Irrgang, Theodor Voelkel, Thomas Merz
Abstract: The invention relates to a process for the production of light-colored surfactants in which the surfactants are stabilized before bleaching by addition of antioxidants.
Abstract: A process for separating a multi-component mixture containing solid or liquid organic components by treating the mixture with a gaseous entraining agent comprising a superheated carrier fluid containing a lower monohydric alcohol or a lower monohydric alcohol and water to cause constituents of the multi-component mixture to become entrained in the gaseous entraining agent, and separating the gaseous entraining agent containing constituents of the multi-component mixture from the multi-component mixture.