Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1981-05-18
1983-05-24
Garvin, Patrick
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
252429C, 526127, 526125, 526161, 526164, C08F 464
Patent
active
043849822
ABSTRACT:
A process and catalyst for the polymerization of olefins wherein the catalyst is prepared by reacting scandium, yttrium or rare earth metal halides with certain transition metal compounds, reacting that product with an organometallic compound, and then reacting that product with a halide ion exchanging source.
REFERENCES:
patent: 2954367 (1960-09-01), Vandenberg
patent: 3179647 (1965-04-01), Mulley et al.
patent: 3784481 (1974-01-01), Lassau et al.
patent: 3803053 (1974-04-01), Yoo
patent: 3812089 (1974-05-01), Tashiro et al.
patent: 4208304 (1980-06-01), Faney
patent: 4218339 (1980-08-01), Zucchini et al.
Garvin Patrick
Phillips Petroleum Company
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