Bayer Aktiengesellschaft

Ge Bayer Silicones Gmbh & Co. Kg

Ge Bayer Siliconesgmbh & Co.kg

Robert Friebe

Karl-Heinz Sockel

Wilhelm Weber

John Mitchell Huggins

Hubertus Eversheim

Hans Sattlegger

Peter Schwabe

Reiner Voigt

Axel Wilms

The present invention relates to polysiloxane compositions which cross-link by condensation and contain at least one cross-linkable polysiloxane, at least one basic filler, at least one phosphorus compound, at least one alkoxysilane cross-linking agent, at least one organometallic compound and optionally other auxiliary substances, a process for their production and their use, as well as surface-modified fillers and their use.

Condensation cross-linking polysiloxane masses, a process for preparing the same and surface-modified fillers

Tin catalysts, a process for their production, their use and

Novel liquid organopolysiloxane resins of the average composition

Liquid organopolysiloxane resins, a process for their preparation, low

The invention relates to activators for the depolymerization of polysiloxanes which are crosslinked, optionally contain fillers and/or are uncrosslinked, a method for the depolymerization of polysiloxanes which are crosslinked, optionally contain fillers and/or are uncrosslinked, and their use.

Activator for the depolymerization of polysiloxanes which are

Novel liquid organopolysiloxane resins of the average composition �R.sup.1 Si(CH.sub.3).sub.2 O.sub.1/2 !.sub.a �(CH.sub.3).sub.3 SiO.sub.1/2 !.sub.b �R.sup.2 O.sub.1/2 !.sub.c �R.sup.1 Si(CH.sub.3)O!.sub.d �(CH.sub.3).sub.2 SiO!.sub.e �SiO.sub.2 !, wherein

A catalyst/cross-linking agent composition, containing at least one

Catalyst/cross-linking agent compositions, a method for their

In the chain extension of a low molecular weight .alpha.,.omega.-dihydroxypoly(diorganosiloxane) wherein the siloxane is contacted with a chain extension catalyst, the improvement wherein said catalyst comprises at least one phosphoric acid ester, orthophosphoric acid, or a salt thereof. The reaction proceeds rapidly and, when complete, the catalyst can easily be deactivated to prevent degradation and/or rearrangement.

Process for the chain extension of

In the production of a poly(diorganosiloxane) with diorganyloxyorganylsilyl or triorganyloxysilyl end groups wherein at least one .alpha.,.omega.-dihydroxypoly(diorganosiloxane) is reacted with at least one alkoxysilane in the presence of a catalyst, the improvement which comprises employing as the catalyst at least one phosphoric acid ester or salt thereof. The reaction proceeds rapidly and, when complete, the catalyst can easily be deactivated to prevent degradation and/or rearrangement.

Process for the production of poly(diorganosiloxanes) with

In the reaction of a polysiloxane with an alkoxysilane to produce polysiloxanes with special terminal groups, the improvement which comprises effecting the reaction in the presence of fluoride ions as activator.

Preparing reaction products from poly (diorganosiloxanes)

Reaction products of titanates with .beta.-dicarbonyl compounds and citrates and their use in one-component RTV silicones.

Growing community of inventors

Leverkusen, Germany

Robert Friebe