Polyurethanes suitable as coating materials or components thereof are essentially composed of A) a.sub.1) from 40 to 100 mol % of bis(4-isocyanatocyclohexyl)methane, the trans/trans content of (a.sub.1) being up to 18 mol %, based on the amount of (a.sub.1), and a.sub.2) from 0 to 60 mol % of further polyfunctional aliphatic, cycloaliphatic, araliphatic or aromatic isocyanates of 4 to 30 carbon atoms and B) b.sub.1) from 20 to 100 mol % of a nonaromatic diol and b.sub.2) from 0 to 80 mol % of fu...

An acid emulsion comprising a lipoid dispersed in an aqueous phase, a cationic sphingolipid, and a stabilizing amount of non-ionic surfactant and cholesterol is provided, along with the method of administering the emulsion.

An acidic emulsion comprising a lipoid dispersed in an aqueous phase, a cationic sphingolipid, and a stabilizing amount of non-ionic surfactant and cholesterol is provided, along with the method of administering the emulsion.

The invention relates to an omnibus which is suitable for train formation, can be driven independently and can either be freely steered or guided on tracks. In order not to disfigure the omnibus front by protruding coupling devices, and to be able to carry out the coupling operation without an assistant from the driver's position of the particular omnibus to be coupled, it is envisaged that at least the front coupling is designed in the form of a bar which can be extended or retracted under remo...

Apparatus and process for preparing homogeneous emulsions incorporating the action of at least two centrifugal pumps with the driving force of two of the pumps tending to pull material in the opposite direction from the other.

A momentary contact switch suitable for use in an electrical keyboard has cylindrical projections projecting from a baseplate with axial bores into which projections of the keys fit and by which are guided and retained. A resilient boot interposed between each key and the baseplate and surrounding the cylindrical projections bears against the underside of the key to keep its switch unclosed except when force is applied to an actuation surface of the key. A movable contact internal to the boot is...

Stabilizing, synergistically acting mixtures of phenolic antioxidants and sulphur-containing elastic-thermoplastic graft products having terminal thioalkyl groups.

Alumina having greater than 0.4 cc/g pore volume in the range 30 to 200 Angstroms pore diameter. A catalyst containing gamma alumina but essentially no eta alumina. The method of tailoring pore size distribution comprising bonding mixtures of particles of rehydration bondable alumina of different particle porosity.

Disclosed is an aluminum alloy suitable for high temperature applications comprised of at least 9 wt. % Si, 3 to 7 wt. % Ni, 1.5 to 6 wt. % Cu, at least one of the elements selected from Mg, Mn, V, Sc, Fe, Ti, Sr, Zn, B and Cr, the remainder aluminum and impurities.

Disclosed is an aluminum alloy suitable for high temperature applications comprised of at least 9 wt. % Si, 3 to 7 wt. % Ni, 1.5 to 6 wt. % Cu, at least one of the elements selected from Mg, Mn, V, Sc, Fe, Ti, Sr, Zn, B and Cr, the remainder aluminum and impurities.