Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1990-04-27
1992-03-17
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...
502113, 502242, 502256, 502305, 502309, 526105, 526106, C08F 4643, C08F 469
Patent
active
050968688
ABSTRACT:
A supported catalyst for polymerizing 1-olefins, for example, ethylene, is prepared by depositing a chromium compound and a titanium compound on a refractory oxide support which is substantially non-spherical, and which has a relatively broad particle size distribution range. The catalyst is preferably combined, either outside of the polymerization vessel or in situ, with a sufficient amount of at least one magnesium composition of the formula RMgR', where R and R' are the same or different and they are C.sub.1 to C.sub.12 hydrocarbyl groups, to provide a molar ratio of magnesium to chromium in the catalyst composition of about 0.01:1 to about 25:1. The resulting catalyst composition has good feedability and fluidization characteristics, and it produces resins of relatively high HLMI at relatively low temperatures.
There is also disclosed a process for polymerizing 1-olefins, at relatively lower temperatures than was heretofore possible, to obtain resins of relatively high HLMI, using the above-identified catalyst composition. The resulting polymers can be used for the fabrication of blow-molded products, e.g., household and industrial containers.
REFERENCES:
patent: 3135809 (1964-06-01), Bosmajian
patent: 3225023 (1965-12-01), Hogan et al.
patent: 3351623 (1967-11-01), Walker et al.
patent: 3591656 (1971-07-01), Kroll
patent: 3622521 (1971-11-01), Hogan et al.
patent: 3879368 (1975-04-01), Johnson
patent: 3925338 (1975-12-01), Ort
patent: 3953414 (1976-04-01), Galli et al.
patent: 3960826 (1976-06-01), Aboutboul et al.
patent: 4011382 (1977-03-01), Levine et al.
patent: 4056669 (1977-11-01), Ballard et al.
patent: 4065612 (1977-12-01), Hamer et al.
patent: 4100337 (1978-07-01), Noshay et al.
patent: 4115639 (1978-09-01), Brown et al.
patent: 4169926 (1979-10-01), McDaniel
patent: 4190457 (1980-02-01), McDaniel
patent: 4321159 (1982-03-01), Bressler et al.
patent: 4328124 (1982-05-01), Speca et al.
patent: 4368302 (1983-01-01), Downs
patent: 4374234 (1983-02-01), Stricklen et al.
patent: 4426315 (1984-01-01), Bahadir et al.
patent: 4434243 (1984-02-01), Martin
patent: 4517345 (1985-05-01), Eve et al.
patent: 4522987 (1985-06-01), Hogan et al.
patent: 4559321 (1985-12-01), Slaugh
patent: 4801572 (1989-01-01), Hsieh
patent: 4816432 (1989-03-01), Hsieh
patent: 4946914 (1990-08-01), Hsieh
"Supported Chromium Catalysts for Ethylene Polymerization", Events in Catalysis, pub. by Academic Press (1985), pp. 47-98, McDaniel.
McDaniel, M. P. et al., "The Activation of the Phillips Polymerization Catalyst", Parts I, II and III, Journal of Catalysis 82, (1983), pp. 98-126.
McDaniel, M. P., "Supported Chromium Catalysts for Ethylene Polymerization", Advances in Catalysis, 33 (1985), pp. 47-98.
Hsieh, Ser. No. 278,096, filing date 11/30/88.
Hsieh, Ser. No. 454,538, filing date 12/21/89.
Hsieh John T. T.
Simondsen Jeanne C.
Garvin Patrick P.
McKillop Alexander J.
Mobil Oil Corporation
Schneller Marina V.
Speciale Charles J.
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