Basf Aktiengesellschaft

Basf Se Corporation

Wintershall Holding Gmbh

Stahl International B.v.

Thomas Frechen

Harald Keller

Ekkehard Jahns

Wolfgang Schrepp

Cedric Dieleman

Stephan H&uuml;ffer

Christian Lach

Thilo Krebs

Ingolf K&uuml;hn

Ulrich Müller

Andrei-Nicolae Parvulescu

Stefan Maurer

Klaus-Dieter Hungenberg

Stefan Adams

Lorenz Siggel

Reinhard Treiber

Bernd Hinrichsen

Karl Häberle

Andreas Pfau

Lars Heckhoff

Bernd Diebold

Axel Ebenau

Peter Dillmann

Helfried Scheidl

Riichiro Kimura

Silvio Alejandro Rosas Paz

Yi Thomann

Gerd BÜLOW

Reinhard KÖHLER

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.

Method for recovering oil

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 &#x3bc;m to 10 &#x3bc;m; and particles (b) having a number average particle diameter of from 5 nm to 0.5 &#x3bc;m and a 20&#xb0; 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.

Method for the production of structured surfaces

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).

Wax formulations and their use for maintaining and preserving surfaces

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.

Method for coating apparatuses and parts of apparatuses for the construction of chemical installations

Compositions for producing difficult-to-wet surface

Growing community of inventors

Heidelberg, Germany

Thomas Frechen