Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1992-10-19
1993-11-09
Garvin, Patrick P.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502117, 502120, 502125, 502127, 526129, 526142, 526143, C08F 4654
Patent
active
052602451
ABSTRACT:
A catalyst for producing higher flow index linear low density polyethylene with relatively narrower molecular weight distributions is described. The catalyst is formed by treating silica having reactive OH groups with a dialkylmagnesium in a solvent for said dialkylmagnesium; then adding to said solvent a carbonyl containing compound to form an intermediate which is subsequently treated with a transition metal to form a catalyst precursor. The catalyst precursor is activated with triethylaluminum.
REFERENCES:
patent: 2905645 (1959-09-01), Anderson et al.
patent: 2912419 (1959-11-01), Peters et al.
patent: 2936291 (1960-05-01), Peters et al.
patent: 3052660 (1962-09-01), Osgan
patent: 3574138 (1971-04-01), Ziegler
patent: 3787384 (1974-01-01), Stevens et al.
patent: 4148754 (1979-04-01), Strobel et al.
patent: 4296223 (1981-10-01), Berger
patent: 4378304 (1983-02-01), Dombro
patent: 4458058 (1984-07-01), Dombro
patent: 4478988 (1984-10-01), Pullukat et al.
patent: 4558024 (1985-12-01), Best
patent: 4558025 (1985-12-01), Best
patent: 4579835 (1986-04-01), Best
patent: 4672096 (1987-06-01), Nowlin
patent: 4727049 (1988-02-01), Furuhashi et al.
patent: 4732882 (1988-03-01), Allen et al.
patent: 4833111 (1989-05-01), Nowlin
patent: 4849389 (1989-07-01), Nowlin et al.
patent: 4888318 (1989-12-01), Allen et al.
patent: 5077255 (1991-12-01), Welborn, Jr.
Macromolecules, vol. 15, No. 3, 1982, pp. 831-834, "Isotactic Polymerization of Propene: Stereoregularity of the Insertion of the First Monomer Unit as a Fingerprint of the Catalytic Active Site".
Mink Robert I.
Nowlin Thomas E.
Garvin Patrick P.
Keen Malcolm D.
McKillop Alexander J.
Mobil Oil Corporation
Schneller Marina V.
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