Other

Robert Boschgmbh

Wolfgang Rapp

Bernd Dittmer

Bernd Taubitz

Steffen Schneider

Kurt Engelsdorf

Klaus Stoeckel

Ernst Bayer

Reinhard Rapp

Roland Weisser

A known shock absorber including a throttle cross section of a throttle passage which is electrically variable via a magnet, to adjust damping of fluid between separate work chambers. If the magnet has no current in the event of an electrical defect, then the throttle cross section of the throttle passage attains its minimum opening, and maximum damping is attained the shock absorber includes a different further throttle passage which is uncovered in the event of an electrical defect. As a result, in the event of an electrical defect an arbitrarily preselectable, preferably approximately average damping is brought about by the further throttle passage.

Shock absorber

The invention concerns a process for the preparation of monodispersed polymer beads, wherein in a first stage a seed polymer is prepared in an organic solvent and in the presence of an R--X compound, separated and in a second stage an emulsion polymerization is carried out in an aqueous medium in the presence of the seed polymer. The polymer beads obtained in this manner have diameters in the range of 0.5 to 50 .mu.m, and may be used in the immobilization of proteins and cells, as carriers of catalysts and in peptide synthesis and in chromatography.

Process for the preparation of monodispersed polymer beads

The invention relates to graft copolymers of crosslinked polymers and linear polyoxyethylene, processes for their production, and their use as a substrate for peptide or nucleotide synthesis or for the covalent fixation of peptides, active protein compounds, and enzymes for affinity chromotography, diagnostic agents, and biotechnological methods.

Graft copolymers of crosslinked polymers and polyoxyethylene, processes

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Stuttgart, Germany

Wolfgang Rapp