Abstract: The present invention relates to a process for recovering oil from a subterranean formation by injecting both solid particles and water into the formation. An oil-in-water emulsion that is stabilized by solid particles is formed in the pores of the formation. This emulsion is recovered from the subterranean formation.

Abstract: The present invention relates to a process for recovering oil from a subterranean formation by injecting both solid particles and water into the formation. An oil-in-water emulsion that is stabilized by solid particles is formed in the pores of the formation. This emulsion is recovered from the subterranean formation.

Abstract: The presently claimed invention is directed a solid particles-stabilized emulsion containing a continuous phase and a dispersed phase comprising a) water, b) crude oil having a viscosity in the range of 1 to 10000 mPa·s at a temperature of 20° C. according to DIN 53019 and c) at least one layered double hydroxide of general formula (I), wherein water is the continuous phase and crude oil is the dispersed phase, and a process for preparing the same.

Abstract: Provided is a process for producing a structured surface possessing a high level of hydrophilicity, wherein the process involves: coating a surface with a mixture to produce the structured surface, wherein the mixture includes: particles (a) having a number average particle diameter of from 0.1 ?m to 10 ?m; and particles (b) having a number average particle diameter of from 5 nm to 0.5 ?m and a 20° C. surface energy of greater than or equal to 80 mN/in, and wherein the mixture exhibits a bimodal particle diameter distribution of particles (a) and particles (b). The mixture may optionally include an aqueous liquor, an emulsifier, a binder, an adhesion promoter, a thickener, and/or a pigment. Also provided is a structured surface produced by the process. A non-limiting example of the structured surface produced by the process is a structured textile surface.

Abstract: A process for producing structured surfaces possessing a high level of hydrophilicity comprises coating the surfaces with (a) particles having a number average diameter in the range from 0.1 to 10 ?m and (b) particles having a number average diameter in the range from 5 nm to 0.5 ?m and a 20° C. surface energy of not less than 100 mN/m.

Abstract: Hydrophilic composite material comprising components A and B, and optionally C, where A is a substance which readily swells with water, B is a substance which forms a porous structure or has a predetermined porous structure, and in whose pores A is present, and C is a binder.

Abstract: The present invention relates to wax formulations comprising a wax constituent a) plus at least one high molecular mass isobutene polymer b) in an amount of from 0.1 to 5 parts by weight per part by weight of constituent a).

Abstract: Hydrophilic composite material comprising components A and B, and optionally C, where A is a substance which readily swells with water, B is a substance which forms a porous structure or has a predetermined porous structure, and in whose pores A is present, and C is a binder.

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: 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 microstructure 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 relates to wax formulations comprising a wax constituent a) plus at least one high molecular mass isobutene polymer b) in an amount of from 0.1 to 5 parts by weight per part by weight of constituent a).

Abstract: Surfaces are provided with a dirt-repellent treatment by a process in which the surfaces are coated with particles which have a mean diameter of from 3 nm to 5 &mgr;m and consist of a material which has a surface energy of at least 20 mN/m.

Abstract: The present invention provides a coating composition for producing difficult-to-wet surfaces, comprising i) at least one finely divided powder whose particles have a hydrophobic surface and a porous structure characterized by a BET surface area (determined in accordance with DIN 66131) of at least 1 m2/g, and ii) at least one film-forming binder characterized by a surface tension <50 mN/m, the weight ratio of powder to binder being at least 1:4. It also provides a process for producing difficult-to-wet surfaces, and provides for the use of the coating compositions for producing surfaces having a self-cleaning effect and for reducing the flow resistance for liquids in pipes.

Abstract: The invention relates to a composition comprising at least one hydrophylic, inorganic powder (P) having an average particle size of between 15 and 500 &mgr;m, and at least one hydrophobic, thermoplastic substance (T) which is characterised by a surface tension of between 20 and 50 mN/m. The weight ratio of the hydrophylic, inorganic powder to the hydrophobic, thermoplastic substance P:T is between 50:1 and 1:2.

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: 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