Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1977-10-06
1979-03-06
Garvin, Patrick
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
252430, 526129, 526156, C08F 402, C08F 464
Patent
active
041429907
ABSTRACT:
Ziegler catalytic system comprising an organo-metallic compound of a metal of Groups I to III of the Periodic Table and a compound of a heavy metal of Groups IV to VI supported on a carrier, the latter being an activated amorphous alumina or alumino-silicate containing from 0.3 to 30% by weight of salts of aluminum with oxygenated inorganic anions, or of a mixture of the latter with salts of aluminum with non-oxygenated inorganic anions, said inorganic anions being introduced into the amorphous alumina or alumino-silicate by contacting the latter with one or more acid solutions of the inorganic anions and the carrier being then activated by calcination at 250.degree. - 700.degree. C.
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patent: 3072633 (1963-01-01), Cawthon et al.
patent: 3166542 (1965-01-01), Orzechowski et al.
patent: 3400084 (1968-09-01), Fukumoto et al.
patent: 3705886 (1972-12-01), Kashiwa et al.
patent: 3978031 (1976-08-01), Reginato et al.
Collu Carlo
Fontanesi Maurizio
Invernizzi Renzo
Ligorati Ferdinando
Euteco S.p.A.
Garvin Patrick
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