Wacker-chemie Gmbh

Consortium Fur Elektrochemische Industrie Gmbh

Consortium Fur Elektrochemische Gmbh

Erhard Bosch

Michael Roth

August Schiller

Oswin Sommer

Norman Dorsch

Ewald Pirson

Franz-Heinrich Kreuzer

Karl Braunsperger

Johann Muller

Ingomar Kovar

Herbert Gluck

Gisela Glauberman

Dietrich Wolfer

Eckhart Louis

Franz Neuhauser

Ernst Innertsberger

Werner Brennenstuhl

Alois Strasser

Klaus-Michael Matejcek

Manfred Mittermeier

Alfred Kurz

Christa Burger

Konrad Gogolok

Walter Strassberger

Ingo Craubner

Josefine Eckl

Klaus-M Matejcek

Heinz-Max Rohrmuller

Johann Kammerer

Reinhard Maier

Compositions which crosslink to form elastomers and are based on

Compressible, sulfur-containing silicone rubber

The present invention relates to compositions which crosslink to give elastomers, comprising;

Liquid silicone rubber with improved compression set

The stabilized organopolysiloxanes which comprise thiodiglycolic esters of the formula ##STR1## in which R.sup.1 can be identical or different monovalent, unsubstituted or halogen-substituted C.sub.1 -C.sub.18 -hydrocarbon radicals,

Stabilized organopolysiloxanes

Compositions for coating the surface of electrical high-voltage insulators, which are stable on storage in the absence of water and can be crosslinked to form elastomers at room temperature when exposed to water comprising

Compositions suitable for coating the surface of electrical high-voltage

The invention relates to organopolysiloxane compositions which can be crosslinked to form elastomers with the elimination of alcohols and are stabilized by salts of the second main group or sub-group with branched-chain carboxylic acids having from 5 to 15 carbon atoms.

Organopolysiloxane compositions which can be crosslinked to form

Compositions which can be crosslinked by radiation to form elastomers comprising (a) an organopolysiloxane containing triorganosiloxane units of the formula

Compositions which can be crosslinked by radiation to form elastomers

Compositions which are storable under anhydrous conditions, but when exposed to atmospheric moisture crosslink at room temperature to form elastomers comprising a diorganopolysiloxane having one Si-bonded hydroxyl group in each of its terminal units, and a cyclic silane of the formula ##STR1## where R represents a divalent hydrocarbon radical, R.sup.1 represents the same or different monovalent hydrocarbon radicals, which can be substituted by an alkoxy group, and R.sup.2 represents hydrogen or an alkyl or aminoalkyl radical in which the silicon atom of the cyclic silane is bonded to a nitrogen atom and to two monovalent hydrocarbon radicals, which can be substituted with an alkoxy group via oxygen and to a hydrocarbon radical via carbon.

Room temperature crosslinkable compositions

This invention relates to silanes of the general formula

Silanes and compositions prepared therefrom

Compositions which can be stored under anhydrous conditions but when exposed to moisture crosslink at room temperature to form elastomers, comprising a diorganopolysiloxane having terminal condensable groups, a silicon compound containing at least three hydrolyzable groups per molecule which are bonded to silicon, and an alkylenediamine in which at least one hydrogen atom that is bonded to a nitrogen atom of the alkylenediamine is substituted with a polyalkylene oxide.

Organopolysiloxane compositions and elastomers formed therefrom

The invention relates to organopolysiloxane compositions which are stable when stored under anhydrous conditions, but when exposed to moisture cure to an elastomer containing (a) a diorganopolysiloxane having terminal condensable groups, (b) a silicon compound having 3 amino groups bonded to silicon via nitrogen and/or oxime groups bonded to silicon via oxygen per molecule and (c) a silicon compound having at least one thiol group selected from mercapto-functional silanes or siloxanes. The presence of the mercapto-functional silanes or siloxanes substantially retards the formation of skin but does not substantially extend the cure time of the organopolysiloxanes compositions. These compositions are useful in, for example, screen printing, where a long skin-over time is desired.

Organopolysiloxanes having retarded skin formation

Room temperature curable compositions, which can be stored under anhydrous conditions, but when exposed to atmospheric moisture at room temperature cure to an elastomer comprising a diorganopolysiloxane having terminal condensable groups, a silicon compound containing acetoxy, tert-butoxy and SiC-bonded alkyl groups and a condensation catalyst, if desired, in which at least a portion of the silicon compound containing acetoxy, tert-butoxy and SiC-bonded alkyl groups is obtained from the reaction of an alkyltriacetoxysilane and tert-butanol in aqueous acetic acid.

Room temperature curable compositions

Curable compositions which can be stored under anhydrous conditions, but when exposed to atmospheric moisture cross-link to form elastomers, which consists of (1) a diorganopolysiloxane having terminal condensable groups, (2) a silicon compound containing at least three hydrolyzable groups per molecule in which the hydrolyzable groups are amino groups bonded to silicon via nitrogen and/or oxime groups bonded to silicon via oxygen and (3) at least one additional component which improves adhesion of the elastomers obtained from said compositions to substrates, in which the additional component (3) is an organosilicon compound containing at least one siloxane-oxygen atom and at least one amino group which is bonded to silicon by carbon.

Curable compositions and elastomers prepared therefrom

A process for simultaneously cleaning and rendering building materials hydrophobic which comprises applying to the surface of the building material a solution of a hydrophobic agent having admixed therewith a filler having a surface area of at least 50 mg.sup.2 /g and after evaporation of the solvent, removing the filler residue.

Rendering building materials hydrophobic

The invention relates to hydrophobic compositions and to a method for preparing hydrophobic compositions by mixing an aqueous suspension of finely divided solids containing dissolved salts of metals with an aqueous solution of alkali metal organosiliconates to form substantially water insoluble metal organosiliconates.

Growing community of inventors

Burghausen, Germany

Erhard Bosch