Wacker-chemie Gmbh

Consortium Fur Elektrochemische Industrie Gmbh

Peter August

Peter Huber

Willi Primas

Helga Lampelzammer

Gerhard Kreis

Wolfgang Hechtl

Klaus Adler

Friedrich Hockemeyer

Manfred Wick

Richard Schmidlkofer

Wilfried Dressler

Adolph Maschberger

This invention relates to polymeric organosilicon compounds containing aryl radicals and to a method for improving the gliding or slipping properties of organic fibers treated therewith. The polymeric organosilicon compounds are represented by the formula

Organic fibers having improved slip properties

Organic fibers having improved slip properties produced by treatment

A process for preparing organopolysiloxane resins containing Si-bonded vinyl groups which comprises heating to a temperature of from about 85.degree. to 95.degree. C. a mixture containing (A) an organopolysiloxane having at least 0.1 percent by weight of Si-bonded hydroxyl groups and at least 50 mol percent of monoorganosiloxane units (RSiO.sub.3/2), (B) an organosiloxane containing from 2 to 10 silicon atoms per molecule, in which substantially all the silicon valences which are not satisfied by siloxane oxygen atoms, are satisfied by SiC-bonded hydrocarbon radicals, and having on the average at least two such hydrocarbon radicals for each silicon atom and at least one of the siloxanes (A) and/or (B) has an average of at least one SiC-bonded vinyl group, and (C) an acid activated bleaching clay; wherein the water released during the heating step by the condensation of Si-bonded hydroxyl groups is retained in the reactive mixture.

Process for preparing organopolysiloxane resins containing Si-bonded

Organopolysiloxane foams are prepared by heating a mixture containing (A) a diorganopolysiloxane, (B) silicon dioxide having a surface area of at least 50 m.sup.2 /g, (C) a peroxide compound, (D) at least one organosilicon compound containing at least 2 weight percent of Si-bonded hydroxyl groups and (E) at least one organopolysiloxane having Si-bonded hydrogen, to a temperature between 280.degree. and 320.degree. C. at a pressure which does not exceed the pressure of the surrounding atmosphere.

Process for the preparation of organopolysiloxane foams

This invention relates to halogen platinum complexes of the formula

Addition of Si-bonded hydrogen to an aliphatic multiple bond

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

Organosilanes containing aliphatic double bonds and a process for preparing the same which comprises reacting an organic compound having more than one aliphatic double bond with a silane having an Si-bonded hydrogen atom and at least one hydrolyzable group and/or at least one group capable of being hydrolyzed more readily than the Si-bonded hydrogen atom in the presence of a catalyst which promotes the addition of Si-bonded hydrogen atoms to aliphatic double bonds. These organosilanes are used as reinforcing agents for compositions containing organic polymers which are crosslinked by means of sulfur or free radicals.

Process for the preparation and use of silanes

A process for preparing adhesive repellent coatings which comprises applying to the surface to be rendered adhesive repellent a mixture containing (1) a diorganopolysiloxane having an Si-bonded vinyl group in each of the terminal units, but is otherwise free of aliphatic unsaturation, (2) an organopolysiloxane having at least 3 Si-bonded hydrogen atoms per molecule, (3) a vinylsiloxane platinum complex and (4) an organic or organosilicon compound which retards or delays the addition of Si-bonded hydrogen to aliphatic multiple bonds, said compound has a boiling point of at least 25.degree. C. at 760 mm Hg (absolute) and at least one aliphatic triple bond, and thereafter crosslinking the diorganopolysiloxane (1).

Process for preparing adhesive repellent coatings and coated article

A process for the addition of Si-bonded hydrogen to an aliphatic multiple bond in the presence of a platinum catalyst selected from the group consisting of

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Burghausen, Germany

Peter August