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EP0190530A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Platinum-alcenylcyclohexene complex as a hydrosilylation catalyst and process for its preparation

Assignee: Rhodia Chimie SAS
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Filing: 1985-12-17
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Granted: —
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Expires: 2005-12-17
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Abstract

Abstract Translated from French La présente invention concerne un procédé de préparation d'un catalyseur d'hydrosilylation complexe platine-oléfine, caractérisé en ce qu'on fait réagir un halogénure de platine sur un composé basique choisi parmi au moins un carbonate ou un bicarbonate de métal alcalin ou alcalino-terreux en présence d'un ligand oléfinique choisi parmi un alcényl-cyclohexène de formule dans laquelle R 1 représente un radical alcényle ayant de 2 à 6 atomes de carbone, et R 2 représente l'atome d'hydrogène ou un radical organique n'ayant pas d'influence défavorable sur l'activité catalytique du platine en particulier un radical alkyle ayant de 1 à 4 atomes de carbone pour obtenir un complexe platine-alcénylcyclohexène présentant un rapport d'atome-gramme d'halogène sur atome-gramme de platine compris entre pratiquement 0 et 4 inclus. The present invention relates to a process for the preparation of a complex hydrosilylation catalyst for platinum-olefin, characterized in that a platinum halide is reacted with a basic compound chosen from at least one carbonate or bicarbonate of alkali or alkali metal -terreux in the presence of an olefinic ligand chosen from an alkenyl-cyclohexene of formula in which R 1 represents an alkenyl radical having from 2 to 6 carbon atoms, and R 2 represents the hydrogen atom or an organic radical having no unfavorable influence on the catalytic activity of platinum in particular a radical alkyl having from 1 to 4 carbon atoms to obtain a platinum-alkenylcyclohexene complex having an atom-gram ratio of halogen to gram-atom of platinum of between practically 0 and 4 inclusive. Utilisation du complexe platine-alcénylcyclohexène comme catalyseur d'hydrosilation dans les compositions organo-polysiloxaniques. Use of the platinum-alkenylcyclohexene complex as a hydrosilation catalyst in organopolysiloxane compositions.

Inventors

  • 👤 Jacques Cavezzan

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 00:49
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; B01J31/22; B01J31/2282; B01J31/2291; B01J31/2295; C; C08; C08K; C08K5/00; C08K5/56; C08L; C08L83/00; C08L83/04; B01J2231/00; B01J2231/30; B01J2231/32; B01J2231/323; B01J2531/00; B01J2531/80; B01J2531/82; B01J2531/828; B01J31/26; B01J31/28; B01J31/30; C08G; C08G77/00; C08G77/04; C08G77/12; C08G77/20; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663

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References Cited (Backward Citations)

US3159601A Cited
FR2255103A1 Cited
EP0029723A1 Cited
EP0057459A1 Cited

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