Abstract: This invention concerns a component for a painting facility which is contaminated with paint during operation of the painting facility, e.g. a grating, a hanger, a cover and similar, characterized in that it is coated with a plasma polymeric coating containing oxygen, carbon and silicon.

Abstract: This invention concerns a component for a painting facility which is contaminated with paint during operation of the painting facility, e.g. a grating, a hanger, a cover and similar, characterized in that it is coated with a plasma polymeric coating containing oxygen, carbon and silicon.

Abstract: An article is described comprising a substrate and a plasma polymer coating comprising silicon, oxygen and carbon bonded to the surface of the substrate, in respect of which coating the following applies in the case of determination by means of ESCA: the mole ratio O: Si is >1.25 and <2.6 and the mole ratio C: Si is >0.6 and <2.2, according to a preferred embodiment the coating contains at least 22 and at most 27 atomic percent Si, at least 25 and at most 50 atomic percent O and at least 25 and at most 50 atomic percent C based on its total atomic number without hydrogen and/or fluorine.

Abstract: A method for coating surfaces, for which a precursor material is caused to react with the help of plasma and the reaction product is deposited on a surface, the reaction as well as the deposition taking place at atmospheric pressure, such that a plasma jet is generated by passing a working gas through an excitation zone and the precursor material is supplied with a lance separately from the working gas to the plasma jet.

Abstract: An article is described comprising

Abstract: Process for the manufacture of composite plasma membranes with the production of a pore-free impermeable polymer layer on a porous substrate through the plasma polymerization of a gaseous mixture, said gaseous mixture containing a hydrocarbon as the matrix-forming component and a nitrogen-, silicon-, sulphur- or phosphorus-containing inorganic compound as the non-matrix-forming component and an oxygen-containing compound, by means of glow discharge in an electrical alternating field. The pore-free impermeable polymer layer is produced directly on a porous substrate without the use of an impermeable intermediate layer, said porous substrate having a pore diameter of less than 100 nm on the side facing the pore-free polymer layer. The composite plasma membranes are used for separating C.sub.1 -C.sub.3 alkanols from mixtures thereof with other organic liquids using the method of pervaporation.

Abstract: In a process for removing water by pervaporation or vapor permeation from mixtures with alcohols and/or carboxylic acids and/or carboxylic esters by bringing the mixture into contact with one side of a membrane and removing the water-containing permeate in vapor form from the other side of the membrane, the membrane used has been obtained by plasma polymerization.

Abstract: A polymer is disclosed which has a betaine structure on at least one side chain. The polymer according to this invention is suitable for use as a material for producing a pervaporation membrane. A process is described for producing the polymer according to this invention whereby betaine groups are introduced into a starting polymer. The betaine groups are introduced into the starting polymer by irradiation of the starting polymer with ionizing radiation and then treatment of the irradiated starting polymer with monomers that are capable of a graft reaction. Monomers that either already contain a betaine function or are capable of forming such a function are used. The betaine can be formed, e.g., by alkylating quaternation of a nitrogen atom present in the monomer if an acid group is introduced simultaneously with the alkylating agent.

Abstract: For producing solution/diffusion membranes, homogeneous dense films prepared by melt extrusion or casting from synthetic polymers, having a melting temperature above 140.degree. C., a glass transition temperature above 0.degree. C. and long time stability against boiling ethanol are irradiated with accelerated electrons and submitted to a subsequent radical graft copolymerization. After graft polymerzation, the functional groups are converted into the dissociated salts.