Wacker-chemie Gmbh

Ferdinand Pradl

Bernd Pachaly

Volker Frey

Johann Schuster

Karl-Heinrich Wegehaupt

Horst Muller

Richard Birneder

Carlos Weise

Norbert Gamon

Peter Fink

Anton Maier

Helmut Vorbuchner

Katharina Noemmer

Organopolysiloxane compositions which crosslink to give electrically

The invention relates to a process for rendering particulate solids containing Si-OH groups hydrophobic which comprises reacting a water repellent containing an organo-silicon compound with particulate solids containing Si-OH groups with simultaneous mechanical loading of the reaction mixture, in which from 5 to 50 percent by weight of the particulate solids containing Si-OH groups are used, based on the total weight of the reaction mixture containing particulate solids and water repellent, and the use of the resultant hydrophobic particulate solids in compositions containing diorganopolysiloxanes, which can be cured to form elastomers.

Process for preparing hydrophobic particulate solids containing Si-OH

The invention relates to heat-vulcanizable compositions containing an organopolysiloxane and from 0.01 to 10 parts by weight of an organo(poly)silane per 100 parts by weight of organopolysiloxane.

Heat-vulcanizable organopolysiloxane compositions

Organosilicon compounds and organopolysiloxane compositions which are crosslinked by the addition of Si-bonded hydrogen with SiC-bonded vinyl groups and contain the organosilicon compounds as additives for improving the adhesion of the resultant elastomers on the substrates on which they are formed.

Organosilicon compounds and crosslinkable organopolysiloxane

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Burghausen, Germany

Ferdinand Pradl