Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1982-10-08
1983-10-04
Garvin, Patrick
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
526137, 526138, 526142, 526127, 526159, 526169, 502171, C08F 402
Patent
active
044077270
ABSTRACT:
A process is provided for transforming a polyolefin powder into a suitable substrate for the preparation of transition metal catalysts. A powder polyolefin such as polyethylene or polypropylene is treated with a solution of a magnesium alkyl. The solvent is removed by any suitable procedure such as vacuum drying. The powder is then treated with gaseous HCl or other agent suitable for decomposition of the magnesium alkyl. The powder thus prepared is an effective support for preparing high efficiency catalysts such as taught in U.S. Pat. No. 4,136,058. These catalysts give polymers of increased particle size. Polyolefin powder in the absence of such treatment is not effective as a catalyst support and will not give polymers of increased particle size.
REFERENCES:
patent: 3594330 (1971-07-01), Delbouille et al.
patent: 4098979 (1978-07-01), Maemoto et al.
patent: 4130699 (1978-12-01), Hoff et al.
patent: 4135046 (1979-01-01), Harris et al.
patent: 4136058 (1979-01-01), Harris et al.
Harris James J.
Hostetler Donald E.
Atlantic Richfield Company
Garvin Patrick
Young Lewis J.
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