Wacker-chemie Gmbh

Richard Schmidlkofer

Wolfgang Hechtl

Peter Huber

Michael Stepp

Johann Mueller

Peter August

Paul Hittmair

Ernst Wohlfarth

Arnold Garhammer

Ernst Wohlfahrt

Heinz Hefner, Deceased

Heinz (deceased) Hefner

Storage-stable polysiloxane composition which gives permanently

Impression compositions containing (a) an organopolysiloxane having at least two alkenyl groups and containing at least 20 mol percent of monoorganosiloxane units, (b) an organopolysiloxane having at least 3 Si-bonded hydrogen atoms per molecule, (c) a catalyst which promotes the addition of Si-bonded hydrogen atoms to alkenyl groups and (d) 30 to 90 percent by weight of a filler, based on the total weight of the composition. Impressions are obtained by applying a composition containing components (a), (b), (c) and (d) to a surface of which an impression is to be made, crosslinking said composition and thereafter removing the formed structure from the contacted surface.

Impression compositions and process for preparing impressions

A process for controlling the rate of addition of silicon bonded hydrogen atoms to organopolysiloxanes containing aliphatic unsaturation which comprises mixing (1) an organopolysiloxane containing silicon bonded hydrogen atoms and/or (2) an organopolysiloxane containing at least 50 silicon atoms per molecule and having aliphatically unsaturated groups with at least one organosilicon compound of the formula

Process for controlling the rate of platinum induced addition reaction

The invention relates to paste-like mixtures that are used in the preparation of room temperature vulcanizable compositions comprising a cross-linking agent, a condensation catalyst and a hydrophobic silicon dioxide thickening agent which is solid at room temperature.

Paste-like mixtures containing a cross-linking agent and a condensation

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Burghausen, Germany

Richard Schmidlkofer