Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1979-12-04
1981-02-24
Niebling, John F.
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
260 4222, 430286, 430945, 568451, 568454, 568455, B01J 3102, C08K 308
Patent
active
042526779
ABSTRACT:
There is disclosed a method for the preparation of a homogeneous, physically stable dispersion of colloidal metal particles of a transition metal selected from the group consisting of nickel, palladium and platinum having a size in the range of from about 10 Angstrom units to about 200 Angstrom units. The method comprises preparing a solution of a functional polymer in an inert solvent, and incrementally adding thereto a transition metal precursor, at a temperature at which the transition metal precursor will become bound to the polymer and thermally decompose to produce elemental transition metal particles, the process being carried out in an inert atmosphere. Such dispersions may be used per se as catalysts, or may be used for the preparation of supported colloidal transition metal catalysts. The dispersions may also be used for the preparation of ablative optical recording media.
REFERENCES:
patent: 3228881 (1966-01-01), Thomas
patent: 3281334 (1966-10-01), Thomas
patent: 3824221 (1974-07-01), Ragg
patent: 3847997 (1974-11-01), Allen
Brownrout H. M.
Eichler P. P.
Niebling John F.
Palazzo E. O.
Xerox Corporation
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