O. Z . 0050/41408 of the disclosure: Foam sheets of high heat distortion resistance contain a) from 80 to 99 % by weight of a styrene polymer and b) from 1 to 20 % by weight of poly-1,4-phenylene sulfide, and, if desired, conventional additives and are produced by extrusion using a low-boiling blowing agent.

Diterpenes having immunomodulatory action Novel and naturally occurring diterpenes of the formula I I in which R1 is -CH2-C(CH3)=CH-R3 or -CH2-CH(CH3)-CH2-R3, R3 is -CH2OH, -CHO, -COOH or -OOR4, R4 is alkyl having 1 to 5 C atoms, A is or and R2 is H, pentoses, hexoses, di-/oligosaccharides or amino sugars, are suitable for the production of medicaments having immunomodulatory action, in particular...

FORMING A FIBER WEB USING A WIDENED JET OF SUSPENSION OF THE DI DISCLOSURE A method and apparatus for minimizing damage from impingement of a jet of fiber suspension on a wire, roller surface or the like defining an inlet slot to a forming section which is opposite the headbox outlet nozzle by increasing the angle of spread and therefore the height of the jet where it impinges upon the surfaces. T...

FORMING A FIBER WEB USING A WIDENED JET OF SUSPENSION OF THE DI DISCLOSURE A method and apparatus for minimizing damage from impingement of a jet of fiber suspension on a wire, roller surface or the like defining an inlet slot to a forming section which is opposite the headbox outlet nozzle by increasing the angle of spread and therefore the height of the jet where it impinges upon the surfaces. T...

FORMING A FIBER WEB USING A WIDENED JET OF SUSPENSION OF THE DI DISCLOSURE A method and apparatus for minimizing damage from impingement of a jet of fiber suspension on a wire, roller surface or the like defining an inlet slot to a forming section which is opposite the headbox outlet nozzle by increasing the angle of spread and therefore the height of the jet where it impinges upon the surfaces. T...

FORMING A FIBER WEB USING A WIDENED JET OF SUSPENSION OF THE DI DISCLOSURE A method and apparatus for minimizing damage from impingement of a jet of fiber suspension on a wire, roller surface or the like defining an inlet slot to a forming section which is opposite the headbox outlet nozzle by increasing the angle of spread and therefore the height of the jet where it impinges upon the surfaces. T...

This invention relates to power amplifiers, such as pulsed power amplifiers, for amplifying radio frequency signals and to a method of amplifying radio frequency signals. The power amplifier in accordance with the invention is responsive to a power level control signal so as to amplify radio frequency signals to define any one of a plurality of amplifier output power envelopes. The power amplifier...

A butt connection between two air duct sections made of sheet metal has two flange frames fastened to opposed ends of two duct sections. Each flange frame is L-shaped in radial section, having an outer radially extending flange leg and an inner flange leg in a duct section, each flange frame comprising a hollow into which a leg of an L-shaped intermediate connection is fitted. Each flange frame is...

A butt connection between two air duct sections made of sheet metal has two flange frames fastened to opposed ends of two duct sections. Each flange frame is L-shaped in radial section, having an outer radially extending flange leg and an inner flange leg in a duct section, each flange frame comprising a hollow into which a leg of an L-shaped intermediate connection is fitted. Each flange frame is...