Polymerization process using catalysts comprising chromium on si

Details Polymerization process using catalysts comprising chromium on si Polymerization process using catalysts comprising chromium on si

1982-09-27

1984-04-24

Levin, Stanford M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

502155, 526105, 526106, 526129, 526352, C08F 402, C08F 424, C08F 462

Patent

active

044449631

ABSTRACT:
In one embodiment of this invention, a chromium component is supported on a silica/aluminum orthophosphate combination and used with an organometal cocatalyst. In accordance with other embodiments of the invention, the silica/phosphate combination for a chromium catalyst support is produced by either impregnating a silica xerogel with aluminum phosphate or boron phosphate, precipitating aluminum phosphate in the presence of a silica hydrogel, or physically mixing silica and aluminum phosphate xerogels. The resulting catalysts are capable of producing high melt flow olefin polymers and exhibit high activity. The resulting polymers have many unusual and desirable characteristics, such as high density and good environmental stress crack resistance.

REFERENCES:
patent: 2938001 (1960-05-01), de Rosset
patent: 3211801 (1965-10-01), Holm et al.
patent: 3271299 (1966-09-01), Kearby
patent: 3342750 (1967-09-01), Kearby
patent: 3453219 (1969-07-01), O'Hara
patent: 3780011 (1973-12-01), Pullukat et al.
patent: 3907849 (1975-09-01), Meyer
patent: 3985676 (1976-10-01), Rekers et al.
patent: 4118340 (1978-10-01), Rekers
patent: 4192775 (1980-03-01), Rekers et al.
patent: 4248735 (1981-02-01), McDaniel et al.

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