Abstract: The surfaces of apparatuses and apparatus parts for chemical plant construction, including, for example, apparatus, container and reactor walls, discharge apparatuses, fittings, pumps, filters, compressors, centrifuges, columns, heat exchangers, dryers, comminuting machines, internals, packings and mixing elements, are coated by a process wherein protuberances having a mean height of from 100 nm to 50 &mgr;m with a mean spacing of from 100 nm to 100 &mgr;m are produced on the surface to be coated and the coating is applied thereon by currentless deposition of a metal layer or of a metal-polymer dispersion layer with the aid of a plating bath which contains a metal electrolyte, a reducing agent and optionally a polymer or polymer blend to be deposited, in dispersed form.

Abstract: In a process for stabilizing chemical compounds having at least one ethylenically unsaturated bond to undesired free radical polymerization, a nitroxyl radical and a chemical compound containing phosphorus in chemically bonded form are added to the unsaturated compound present as pure substance or as a component of a mixture.

Abstract: An article having a metallic surface treated with polymeric complexing agent is described. Particularly suitable polymeric complexing agents are phosphonoalkylated polyethyleneimines and/or carboxyalkylated polyethyleneimines and/or vinylimidazole polymers. As a rule, the treated metallic surface forms the total inner surface or a part of the inner surface of a process apparatus or of a container. The surface is protected by the treatment, in particular from the adhesion of polymer.

Abstract: An inhibitor mixture containing, as components, a) at least one nitroxyl radical (derivative), b) at least one phenol (derivative) and c) at least one chemical compound which contains at least one phosphorus atom which has the oxidation state +3 is preferably used for stabilizing compounds capable of free radical polymerization.

Abstract: Improved cholesteric special-effect layers are obtainable by comminuting cholesteric layers. These cholesteric layers are produced by applying at least one layer of a reactive, pourable cholesteric mixture to a moving substrate, by casting, and forming a solid cholesteric layer.

Abstract: A process for coating surfaces in apparatuses or apparatus parts for plant construction, preferably for chemical plant construction, involves optionally first hydrophobicizing a polymer film having a microstructured and optionally additionally macrostructured surface and then fixing it on the apparatus or apparatus part to be coated, and also apparatuses and apparatus parts thus coated.

Abstract: The present invention provides a coating composition for producing difficult-to-wet surfaces, comprising

Abstract: Polymeric UV absorbers based on the units shown in the schematized formula I ##STR1## where the sequence of the units is arbitrary, the sum of a+b+c+d=100 anda is a value from 5 to 95,b is a value from 0 to 70,c is a value from 5 to 95,d is a value from 0 to 70and the radicals R have the meaning explained in the description, are described.

Abstract: A process for preparing pigment particles of defined size and shape comprises treating a sheetlike structure having through openings of defined shape and size with a polymerizable substance or mixture of substances in such a way that the openings are filled, removing any solvent present, polymerizing the substance or substance mixture, and isolating the resulting pigment particles from the openings. The pigments are readily varied in size and shape by variation of the substrate parameters and are useful for the known pigment applications, especially coatings, paints and inks.

Abstract: Cosmetic compositions contain a polymer with the repeating structural unit (I) ##STR1## where the radicals have the meanings stated in the description.

Abstract: Polymerized liquid-crystalline compositions are obtainable by radiation curing of mixtures comprising P0 a) one or more cellulose derivatives in which some or all of the hydroxyl groups of the cellulose are replaced by --OR, 13 O--CO--NH--R, --O--CO--R or --O--CO--OR, where each R can be identical or different and is an aliphatic or aromatic radical of up to 20 carbons,b) one or more polymerizable monomers andc) if desired, further additives.

Abstract: Electrode materials suitable for electrochemical cells containing a) a polymeric binder which is composed essentially of polyisobutene having a limiting viscosity number of from 551 to 661 g/cm.sup.3 and b) a solid which is capable of reversibly taking up or releasing lithium ions in an electrochemical reaction.

Abstract: A cosmetic composition comprises a polymer with the repeating structural unit (I) ##STR1## where R and R' can be identical or different and are H, alkali metal, ammonium, C.sub.1 -C.sub.30 alkyl,X is a direct linkage, C.sub.1 -C.sub.8 alkylene or C.sub.2 -C.sub.12 oxoalkylene having 1-6 oxygen atoms,Y is a UV-absorbing organic radical,n is 2-800.

Abstract: Silanes of the general formula I ##STR1## wherein n is an integer of from 1 to 5, at least one of the residues R represents a hydrolyzable residue selected from the group of substituents consisting of halogen, alkoxy, sec. amino and oxycarbonyl hydrogen or oxycarbonyl alkyl, and the other residues represent alkyl, cycloalkyl, aryl or one of the said hydrolyzable residues, a process for their preparation, and their use.

Abstract: Cholesteric copolyisocyanates with repeating units of the formulae: ##STR1## and, where appropriate, of the formula ##STR2## where R.sup.1 is a chiral aliphatic or aromatic radical,R.sup.2 is a crosslinkable radical, andR.sup.3 is an achiral radical,and polymers obtainable by crosslinking the copolyisocyanates according to the invention with a polymerizable solvent, and pigments comprising the polymers according to the invention, are described.

Abstract: Abstract of the Disclosure: A process useful for information storage is described for the time-stable labeling of individual atoms or groups of atoms in the surface of a solid by locally removing individual atoms or group of atoms from the surface of a solid.

Abstract: Cleaned or chemically pretreated metal surfaces are modified using aqueous solutions of amino-containing organic polymers, the metal surfaces thus modified being particularly suitable for coating by cathodic electrodeposition.

Abstract: Passivated metallic pigments obtainable by gas-phase decomposition of volatile phosphorus compounds and of volatile nitrogenous silicon compounds with steam and/or oxygen in the presence of the agitated pigment particles, and the production of these pigments and their use for coloring water-based printing inks, other inks and paints.

Abstract: A magnetic recording medium comprises a nonmagnetic substrate and at least one ferromagnetic metal layer applied thereon and a protective layer formed on this metal layer and consisting of a compound which consists of an unfluorinated or partially fluorinated alkyl radical and a disulfide, hydroxyl or keto group.

Abstract: Disulfides of the general formulaX.sup.1 --(CH.sub.2).sub.n --S--S--(CH.sub.2).sub.n --X.sup.2where X.sup.1 and X.sup.2 are identical to one another and are each --Br, --N-phthalimide, --NH.sub.2, --OOC--(CH.sub.2).sub.3 --COOH, --OSO.sub.2 --CH.sub.3, --NH--(CH.sub.2).sub.2 --NH.sub.2, --SO.sub.3 H or --SO.sub.3.sup.- M.sup.+ in which M.sup.+ is an alkali metal ion and n is from 11 to 25, or X.sup.1 is --OH and X.sup.2 is --Br or X.sup.1 and X.sup.2 are each --COO--CH.sub.2 --CH.sub.3 and n is from 10 to 25, are suitable for the production of monomolecular layers on noble metal substrates and for the production of multimolecular layers.