Wacker Chemie Ag

Oliver Schäfer

Bernd Pachaly

Richard Weidner

Herbert Barthel

Andreas Bauer

Christian Ochs

Mario Heinemann

Helmut Oswaldbauer

Thomas Köhler

Alfred Popp

Christoph Briehn

Peter Randel

Hans-Joachim Luckas

Petra Gratzl

Oliver Fuhrmann

Ralph Hiemeyer

Mathias Scherer

Yolker Staniek

Katja Hüttl

Michael Joachimbauer

Christina Bauer

The invention relates to compositions containing dye, containing (A) at least one dye, (B) at least one organopolysiloxane containing units of the general formula R(RO)SiO(I), wherein the radicals and indexes have the meaning indicated in claim, provided that the total is a+b&#x2264;3 and in more than 80% of all units, the formula (I) is equal to 2, and (C) at least one siloxane-organo-copolymer. The invention further relates to a method for the production thereof and to the use thereof in the dyeing of polymer materials.

Composition comprising colorants

The invention relates to a process for producing oxamide-functional siloxanes by reacting with

Process for preparing oxamide-functional siloxanes

Composition comprising (A) 50-99.5 wt %, based on the total weight, of A, B and C of a reaction resin or reaction resin mixture that is processed into thermosetting materials, said resin or resin mixture being liquid at temperatures in the range of 15 to 100&#xb0; C. and having an average molecular weight of 200 to 500,000 and with a sufficient number of suitable reactive groups for a curing process and (B) 0.5-50 wt %, relative to the total weight of A, B and C of one or more dispersed polyorganosiloxanes that are contained in the reaction resin or reaction resin mixture homogeneously in finely distributed form as polyorganosiloxane droplets with a diameter of 0.001 to 4 &#x3bc;m, wherein the organopolysiloxane particle is a polymer of the general formula (RSiO)(RSiO)&#x2014;(RSiO)&#x2014;(SiO), where w=0 to 20 Mol %, x=80 to 99.9 Mol %, y=0.5 to 10 Mol %, z=0 to 10 Mol %, (C) 0.1-50 wt %, based on the total weight of A, B and C of one or more silicone organo copolymers as dispersing agents that can be homogeneously dissolved or homogeneously emulsified in the reaction resin or reaction resin mixture.

Siloxane mixtures containing epoxide resins and method for the preparation thereof and use thereof

Alkyl silanes are prepared by silylating an unsaturated hydrocarbon with an Si&#x2014;H functional silane employing an iridium chloride coordination compound as a catalyst and a polymeric polyene as a cocatalyst. Reaction bottoms can be worked up to provide an iridium-containing composition which remains catalytically active.

Iridium-catalyzed production method for organosilicon compounds

Particles of metal and non-metal oxides may be readily functionalized with organosilyl groups, even in the absence of catalysts, when methylene-spaced alkoxysilanes are used for functionalizing. When an excess of alkoxy groups relative to metal-OH groups are present, the resulting functionalized particles exhibit high reactivity, particularly upon exposure to moisture. Functionalization is particularly useful with particles of organopolysiloxane resins.

Organosilyl functionalized particles and the production thereof

Phosphone ester modified organosilicon compounds are prepared by reacting phosphonic ester-functionalized alkoxysilane with a silanol-functional organosilicon compound. The product is produced in high yield and purity.

Method for the production of organosiloxanes modified by a phosphonic acid ester

Useful products are recovered from the bottoms of aminoalkylsilane production in high yield and purity by reaction with alcohol, increasing the economics of aminoalkylsilane synthesis.

Process for preparing aminoalkysilanes

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Burghausen, Germany

Oliver Schäfer