Abstract: A filler for wall coating compositions, wherein said filler consists of particles, wherein said particles are fired mixtures of 40 to 70% by weight of clay minerals 5 to 32% by weight of crystalline silicic acids 10 to 45% by weight of feldspar 0 to 20% by weight of other aggregates, and wherein said particles have a d50 grain size of from 1 ?m to 40 ?m.

Abstract: Granules for a roof coating, wherein said granules comprise particles that have a coating, wherein said coating comprises at least one layer of an inorganic powder in a binder, wherein said inorganic powder has a d50 grain size of from 0.5 to 25 ?m, and wherein a hydrophobizing and/or oleophobizing agent is present on said coating.

Abstract: The invention relates to a roof coating comprising a bitumen layer with embedded particles.

Abstract: The invention relates to a roof coating comprising a bitumen layer with embedded particles.

Abstract: A piston, which has a piston rod, is guided with freedom of axial movement in a cylindrical pressure tube. At one end of the pressure tube, the piston rod passes through an opening in an end wall, which closes off the end of the pressure tube. The pressure tube is surrounded by a heat-shrink sleeve, which, at the exit end of the piston rod, extends more-or-less radially inward and has a pass-through opening through which the piston rod extends. The ring-shaped end surface at the piston rod exit end of the pressure tube is enclosed by the heat-shrink sleeve.

Abstract: A piston, which has a piston rod, is guided with freedom of axial movement in a cylindrical pressure tube. At one end of the pressure tube, the piston rod passes through an opening in an end wall, which closes off the end of the pressure tube. The pressure tube is surrounded by a heat-shrink sleeve, which, at the exit end of the piston rod, extends more-or-less radially inward and has a pass-through opening through which the piston rod extends. The ring-shaped end surface at the piston rod exit end of the pressure tube is enclosed by the heat-shrink sleeve.

Abstract: Rhamnolipids with high surface activity are produced micro iologically in high yield per g of dry cell substance using Pseudomonas spec. DSM 2874 in the form of growing, resting and immobilized cell mass in an aqueous medium containing at least one assimilable carbon source at a pH of 6.7 to 7.3 and a temperature of 30.degree. to 37.degree. C. Two new rhamnolipids with only one .beta.-hydroxydecanoic acid residue in the molecule and defined as .alpha.-L-rhamnopyranosyl- and 2-O-.alpha.-L-rhamnopyranosyl-.alpha.-L-rhamnopyranosyl-.beta.-hydroxydeca noic acid with a molecular weight of 334 and 480, respectively, are obtained.

Abstract: Anionic, surface-active trehalose lipids, in which different organic acids are bound to a trehalose molecule by an ester linkage, are prepared by aerobically cultivating trehalose-producing microorganisms, capable of assimilating hydrocarbons, under growth-limiting conditions, but without limiting the oxygen.