Polymerization process

Details Polymerization process Polymerization process

1982-08-23

1985-05-14

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

502113, 526106, 526352, C08F 424, C08F 1002

Patent

active

045173451

ABSTRACT:
A process and catalyst for polymerizing olefins, especially ethylene or a mixture of ethylene with up to 40 wt % (based on total monomer) or other 1-olefinic monomer, the process comprising (a) supporting a chromium compound on a refractory oxide support material, (b) adding one or more tetravalent titanium compounds, (c) heating the product under such conditions that an active polymerization catalyst in the presence of one or more organometallic compounds wherein the metal is of groups 1A, 2A, 2B or 3A of the Periodic Table (Mendeleef), especially aluminium trialkyls. Step (d) is preferably carried out in the presence of a polyene modifier. The refractory oxide support material is preferably silica. The produced polyolefins are also claimed.

REFERENCES:
patent: 2824089 (1958-02-01), Peters et al.
patent: 2912421 (1959-11-01), Luveland et al.
patent: 3158594 (1964-11-01), Weil et al.
patent: 3622521 (1971-11-01), Hogan et al.
patent: 3646000 (1972-02-01), Horvath
patent: 3780011 (1973-12-01), Pullukat et al.
patent: 3891611 (1975-06-01), Abe et al.
patent: 3970613 (1976-07-01), Goldie et al.
patent: 4041224 (1977-08-01), Hoff et al.

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