Platinum and/or palladium containing organopolysiloxane-ammonium compounds, method for their preparation and uses

US4647679A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Peter Panster · Rodenbach, DE
• Marlies Englisch · Rodenbach, DE
• Peter Kleinschmit · Hanau, DE

Key dates

• Filing date: Feb 8, 1985
• Grant date: Mar 3, 1987
• Expiry date: Feb 8, 2005

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/582
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Platinum and/or palladium containing organopolysiloxane-ammonium compounds containing units represented by the structural formula: ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 represent: EQU R.sup.5 --SiO.sub.3/2 (2) wherein R.sup.5 is an alkylene group and the free valences of oxygen are satisfied by silicon atom and additional groups of the structural formula (2), optionally with the introduction of a crosslinking agent, PA0 R.sup.4 can be R.sup.1, R.sup.2, R.sup.3 or hydrogen, alkyl, cycloalkyl or benzyl, PA0 Y.sup.x- is MeX.sub.4.sup.2- or MeX.sub.6.sup.2-, wherein Me is platinum or palladium and PA0 X is chlorine or bromine, and can further denote a 1 to 3 valent anion of a protonic acid capable of forming a stable salt with an amine, or the hydroxy group, and PA0 x is a number from 1 to 3. Methods for the obtaining the polymeric organosiloxane-ammonium-noble metal complexes and as well as the use thereof as catalysts for hydrosilylation and hydrogenation reactions are disclosed.