Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1979-01-19
1980-09-02
Garvin, Patrick
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
252428, 252429R, 252431C, 252431N, 252431P, 560231, 556404, 556405, 556431, 556484, 568454, 585430, B01J 3124
Patent
active
042205565
ABSTRACT:
Novel heterogeneous silylhydrocarbyl phosphine transition metal complex catalysts and intermediates therefor are prepared by (a) the selective monoaddition of silane having chlorine, alkoxy or acyloxy groups to an .alpha., .omega.-diene, (b) followed by the addition of a phosphine to the resulting .omega.-alkenyl silanes to form the corresponding silylalkyl phosphines, (c) which are then covalently anchored as such or in the form of their transition metal complexes via condensation of their reactive silane substituents with hydroxy groups of silica and metal oxides, (d) optionally followed by complexing the free phosphine groups of anchored silylalkyl phosphines with transition metal compounds.
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Murrell Lawrence L.
Oswald Alexis A.
Allocca Joseph J.
Corcoran Edward M.
Exxon Research & Engineering Co.
Garvin Patrick
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