Abstract: A pseudoplastic powder clearcoat slurry which is free from organic solvents and external emulsifiers and comprises solid spherical particles with an average size of from 0.8 to 20 &mgr;m and a maximum size of 30 &mgr;m, at least one ionic thickener and at least one nonionic associative thickener, the powder clearcoat slurry having an ion-forming group content of from 0.05 to 1 meq/g, a neutralizing agent content of from 0.05 to 1 meq/g, and a viscosity of (i) from 50 to 1 500 mPas at a shear rate of 1 000 s−1, (ii) from 150 to 8 000 mPas at a shear rate of 10 s−1, and (iii) from 180 to 12 000 mPas at a shear rate of 1 s−1.

Abstract: The present invention relates to a powder coating material which contains preferably from 0.05 to 5% by weight, preferably from 0.5 to 2% by weight, of at least one polyethylene wax distributed homogeneously within the powder coating material.

Abstract: A process for producing fiberboard panels includes I. gluing cellulosic fibers with an aqueous glue solution and adjusting the moisture content of the cellulosic fibers and/or the water content of the glue such that the moisture content of the glued cellulosic fibers is not more than 150%; and II. compressing the glued cellulosic fibers produced in step (I) at elevated temperature to fiberboard panels.

Abstract: A carbamate-functional compound having a structure in which each of R1, R2, and R3 is carbamate-functional is water soluble. Coating compositions, especially waterborne coating compositions, include the carbamate-functional compound and one or more crosslinkers. The invention further provide a coating prepared from the coating composition and a coated substrate, especially an automotive substrate, having the coating thereon.

Abstract: An aqueous polymer dispersion comprises rubber particles and polymer particles having a reinforcing action.

Abstract: A process for preparing N-alkenyl-amides by reacting the corresponding NH-amides with acetylenes in the liquid phase in the presence of basic alkali metal compounds and of a cocatalyst comprises using as the cocatalyst compounds of the general formulae (Ia) and/or (Ib) R1O—(CH2CH2CH2CH2O)n—H  (Ia): R1O—(CH2CH2CH2CH2O)n—R2,  (Ib): where n is 1, 2 or 3 and R1 and R2 are independently C1- to C6-alkyl or C2- to C6-alkenyl, or together a butenyl unit.

Abstract: A process for preparing bisphenol alkoxylates comprises reacting at least one bisphenol with alkylene oxide in the presence of a phosphine catalyst which is essentially free of alkali metal hydroxide.

Abstract: A powder coating slurry, especially a powder clearcoat slurry, comprising at least one hydroxyl-containing binder A, at least one polyisocyanate crosslinking agent B, and water, where 1) the hydroxyl-containing binders A and the polyisocyanates B have been homogenized such that not less than 30, preferably not less than 60 and in particular not less than 90% by weight of the polyisocyanate B are present in solution or dispersion in the particles comprising the binders A, and 2) the particles of the crosslinking agent B which may still be present in the aqueous phase, and the particles comprising the binders A and the crosslinking agents B, have been stabilized, by way of the isocyanate groups present on their surface, by means of a deactivator added to the aqueous phase.

Abstract: A multi-compartment bottle is provided, the bottle comprising a body defining a plurality of compartments, with each compartment being adapted to contain an amount of a liquid. A neck finish, integral with the body, has an outer surface which defines an opening for and in communication with each respective compartment. Each opening is adapted to allow dispensing of the respective liquid therethrough. The outer surface of the neck finish defines a groove configured to discretely separate the openings such that the groove prevents liquid dispensed from one opening from entering another opening. The openings are further arranged so as to collectively define a substantially circular outer periphery for the neck finish. A closure system for the bottle comprises a plug for and configured to be separably engageable with each respective opening.

Abstract: A process for producing scratch-resistant coatings, especially scratch-resistant multicoat finishes, involving use of coating compositions which after curing have a storage modulus E′ in the rubber-elastic range of at least 107.5 Pa and a loss factor tan &dgr; at 20° C. of at least 0.05, the storage modulus E′ and the loss factor having been measured by dynamic mechanical thermoanalysis on free films having a film thickness of 40±10 &mgr;m, and comprise as binders one or more polyacrylate resins having a hydroxyl number of from 100 to 240, an acid number of from 0 to 35, and a number-average molecular weight of from 1500 to 10,000, and as crosslinkers one or more free or blocked isocyanates and/or triazine-based components which crosslink with the hydroxyl groups of the binder to form ether and/or ester structures.

Abstract: Provided is a novel method of dyeing a corespun yarn which comprises an inorganic fiber core and at least a first sheath. The method comprises: (a) contacting the corespun yarn with a dye liquor; (b) heating the dye liquor to a dyeing temperature for a time effective to dye the yarn; (c) cooling the dye liquor at a controlled rate; and (d) rinsing the yarn with water or with a mixture comprising the dye liquor and water. The dyed corespun yarn has a strength retention of about 80% or more based on the undyed yarn. The methods in accordance with the invention allow for the formation of uniformly dyed, high strength corespun yarns. Also provided is a dyed, corespun yarn which can be made by the inventive method, a fabric formed from the corespun yarn, as well as a product upholstered with the fabric. The dyed yarns exhibit substantially no “grin through” and little to no yarn strength loss after dyeing.

Abstract: Aqueous coating material comprising (A) water-dispersible hydroxy-functional binder component containing urethane groups, (B) water-dispersible binder component containing urethane groups and blocked isocyanate groups, (C) water-dispersible amino resin, and optionally (D) water-dispersible hydroxy-functional polyester, the binder component (B) being preparable by (B1) preparing a polyurethane prepolymer containing isocyanate groups from at least one polyol and at least one polyisocyanate, (B2) reacting the polyurethane prepolymer (B1) containing isocyanate groups with a chain extender to give a hydroxyl-containing chain-extended polyurethane prepolymer, (B3) reacting the hydroxyl-containing chain-extended polyurethane prepolymer (B2) with at least one polyisocyanate to give a further polyurethane prepolymer containing isocyanate groups, and (B4) blocking some or all of the isocyanate groups of the chain-extended polyurethane prepolymer (B3) containing isocyanate groups with a blocking agent to give a polyuret

Abstract: A description is given of a process for preparing dihydroxycarboxylic esters and of an overall process for preparing R-(+)-&agr;-lipoic acid.

Abstract: Goniochromatic luster pigments are based on titanium dioxide-coated silicatic platelets which have been heated in a reducing atmosphere and which comprise at least one layer packet comprising A) a colorless coating having a refractive index n≦1.8 and B) a coating which has a refractive index n≧2.0, which includes iron(III) oxide and which selectively absorbs visible light.

Abstract: The present invention provides a coating composition comprising a) one or more polyester resins (A), b) one or more polyacrylate resins (B), c) one or more di- and/or polyisocyanates (C) having free or blocked isocyanate groups, d) one or more light stabilizers (L1) based on a UV absorber, e) one or more light stabilizers (L2) based on sterically hindered amines, f) one or more pigments (P), and g) one or more organic solvents (D), where 1.) the polyester (A) has an OH number of from 80 to 200 mg KOH/g and an acid number <10 mg KOH/g, 2.) the polyacrylate resin (B) has an OH number of from 80 to 200 mg KOH/g and an acid number <20 mg KOH/g, 3.) the light stabilizer (L2) based on, sterically hindered amines is amino ether functionalized, and 4.) effect pigments (EP) are included herein in a nonhiding concentration.

Abstract: Pressure-sensitive adhesives comprising an aqueous polymer dispersions wherein the polymer is composed of from 50 to 99.9% by weight of at least one C1-C12 alkyl (meth)acrylate (monomers a) from 0.05 to 20% by weight of at least one vinylaromatic compound (monomers b) from 0.05 to 10% by weight of at least one ethylenically unsaturated hydroxy compound (monomers c) from 0 to 10% by weight of an ethylenically unsaturated acid or an acid anhydride (monomers d) and from 0 to 30% by weight of other ethylenically unsaturated compounds (monomers e) the weight percentages being based on the polymer, and the polymer dispersion comprising an emulsifier consisting to the extent of at least 5% by weight of aromatic carbon atoms (and called aromatic emulsifier for short) or an emulsifier mixture consisting to the extent of at least 10% by weight of an aromatic emulsifier.

Abstract: A composite structure including a polyurea show surface, or top layer, and a polyurethane backing layer is disclosed. Preferably, the show surface of the composite structure is substantially free of volatile organic compounds and is aliphatic such that it is ultraviolet light stable. Specifically, the show surface is the reaction product of an aliphatic polyisocyanate or aliphatic polyisocyanate blend, and of a resin component which is a polyamine. The resin component reacts with the aliphatic polyisocyanate to form a polyurea. The show surface has a Shore D hardness of 70. Like the show surface, the polyurethane backing layer of the composite structure is substantially free of volatile organic compounds. This backing layer is the reaction product of a second polyisocyanate component, such as polymeric diphenylmethane diisocyanate, and of a second-layer resin component, which comprises a polyol having a functionality of at least three.

Abstract: A process is described for the polycondensation of organic silicon compounds at from pH 6 to 8 in the presence of a lipase which is, where appropriate, immobilized on a carrier composed of polymer materials. Suitable organic silicon compounds capable of polycondensation are (RO)(R1O)(R2O)(R3O)Si, (RO)(R1O)(R2O)SiR3, (RO)(R1O)Si (R2)(R3) and (RO) SiR1R2R3, where R, R1, R2 and R3 are independently of one another C1- to C10-alkyl, C3- to C10-cycloalkyl, C4- to C20-alkylcycloalkyl, aryl, C6- to C16-alkylaryl, the alkyl groups being linear or branched. It is advantageous and possible to obtain the lipase on a large scale relatively simply by fermentation processes. Preference is given to employing lipases from Pseudomonas species.

Abstract: The present invention relates to a process for coating apparatuses and apparatus parts for chemical plant construction—which are taken to mean, for example, apparatus, tank and reactor walls, discharge devices, valves, pumps, filters, compressors, centrifuges, columns, dryers, comminution machines, internals, packing elements and mixing elements—wherein a metal layer or a metal/polymer dispersion layer is deposited in an electroless manner on the apparatus(es) or apparatus part(s) to be coated by bringing the parts into contact with a metal electrolyte solution which, in addition to the metal electrolyte, comprises a reducing agent and optionally the polymer or polymer mixture to be deposited in dispersed form, where at least one polymer is halogenated.

Abstract: Compositions comprising as components A) at least one bisazo compound selected from the group consisting of the compounds of the general formula Ia  and of the general formula Ib  where R1 is C1-C8-alkyl, R2 is C2-C8-alkyl, R3 and R3′ are each C2-C21-alkyl in which up to four CH2 groups of the carbon chain may be replaced by oxygen in ether function, R4 is hydrogen or is R3 (independently of R3), R4′ is hydrogen or is R3′ (independently of R3′), B) at least one solvent in which said component A) is soluble, and optionally C) at least one surface-active substance, are useful as dye penetrants for detecting surface cracks or other defects in workpieces to be tested in this respect.